./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_14917f1c-961c-483f-87e4-cc8266fabc7c/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_14917f1c-961c-483f-87e4-cc8266fabc7c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_14917f1c-961c-483f-87e4-cc8266fabc7c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_14917f1c-961c-483f-87e4-cc8266fabc7c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_14917f1c-961c-483f-87e4-cc8266fabc7c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_14917f1c-961c-483f-87e4-cc8266fabc7c/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5f66ecd5f6aef5b29bc80dee4a57cabf0f421223 ...................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_14917f1c-961c-483f-87e4-cc8266fabc7c/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_14917f1c-961c-483f-87e4-cc8266fabc7c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_14917f1c-961c-483f-87e4-cc8266fabc7c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_14917f1c-961c-483f-87e4-cc8266fabc7c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_14917f1c-961c-483f-87e4-cc8266fabc7c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_14917f1c-961c-483f-87e4-cc8266fabc7c/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5f66ecd5f6aef5b29bc80dee4a57cabf0f421223 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 16:59:14,856 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:59:14,858 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:59:14,865 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:59:14,865 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:59:14,866 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:59:14,867 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:59:14,869 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:59:14,870 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:59:14,871 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:59:14,872 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:59:14,872 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:59:14,873 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:59:14,873 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:59:14,874 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:59:14,875 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:59:14,875 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:59:14,876 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:59:14,877 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:59:14,879 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:59:14,881 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:59:14,881 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:59:14,882 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:59:14,883 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:59:14,885 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:59:14,885 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:59:14,885 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:59:14,886 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:59:14,886 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:59:14,886 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:59:14,887 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:59:14,887 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:59:14,888 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:59:14,888 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:59:14,889 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:59:14,889 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:59:14,890 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:59:14,890 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:59:14,890 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:59:14,891 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:59:14,892 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:59:14,892 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_14917f1c-961c-483f-87e4-cc8266fabc7c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 16:59:14,905 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:59:14,905 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:59:14,906 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 16:59:14,906 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 16:59:14,907 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 16:59:14,907 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 16:59:14,907 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 16:59:14,907 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 16:59:14,907 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 16:59:14,907 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 16:59:14,908 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 16:59:14,908 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 16:59:14,908 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 16:59:14,908 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 16:59:14,908 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 16:59:14,909 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:59:14,909 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 16:59:14,909 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 16:59:14,910 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 16:59:14,910 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:59:14,910 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 16:59:14,910 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 16:59:14,910 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 16:59:14,910 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 16:59:14,911 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 16:59:14,911 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 16:59:14,911 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:59:14,911 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 16:59:14,911 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:59:14,911 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 16:59:14,912 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 16:59:14,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:59:14,912 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:59:14,912 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 16:59:14,912 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 16:59:14,912 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 16:59:14,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 16:59:14,913 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 16:59:14,913 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:59:14,913 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 16:59:14,913 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_14917f1c-961c-483f-87e4-cc8266fabc7c/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(__VERIFIER_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 -> 5f66ecd5f6aef5b29bc80dee4a57cabf0f421223 [2019-12-07 16:59:15,017 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:59:15,025 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:59:15,027 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:59:15,028 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:59:15,028 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:59:15,029 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_14917f1c-961c-483f-87e4-cc8266fabc7c/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c [2019-12-07 16:59:15,065 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_14917f1c-961c-483f-87e4-cc8266fabc7c/bin/utaipan/data/ff2f60d2e/1e7faa23330241af9ca2450cd18494a4/FLAGba9cd339e [2019-12-07 16:59:15,503 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:59:15,504 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_14917f1c-961c-483f-87e4-cc8266fabc7c/sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c [2019-12-07 16:59:15,513 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_14917f1c-961c-483f-87e4-cc8266fabc7c/bin/utaipan/data/ff2f60d2e/1e7faa23330241af9ca2450cd18494a4/FLAGba9cd339e [2019-12-07 16:59:15,525 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_14917f1c-961c-483f-87e4-cc8266fabc7c/bin/utaipan/data/ff2f60d2e/1e7faa23330241af9ca2450cd18494a4 [2019-12-07 16:59:15,527 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:59:15,528 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:59:15,529 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:59:15,529 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:59:15,532 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:59:15,533 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:59:15" (1/1) ... [2019-12-07 16:59:15,535 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@581b80cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:59:15, skipping insertion in model container [2019-12-07 16:59:15,535 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:59:15" (1/1) ... [2019-12-07 16:59:15,539 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:59:15,574 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:59:15,807 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:59:15,816 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) [2019-12-07 16:59:15,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4ad62d2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:59:15, skipping insertion in model container [2019-12-07 16:59:15,817 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:59:15,817 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 16:59:15,819 INFO L168 Benchmark]: Toolchain (without parser) took 289.92 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 945.1 MB in the beginning and 1.1 GB in the end (delta: -141.7 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-12-07 16:59:15,819 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:59:15,820 INFO L168 Benchmark]: CACSL2BoogieTranslator took 287.73 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -147.1 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-12-07 16:59:15,821 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 287.73 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -147.1 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 201]: 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 0.1.25-f470102 [2019-12-07 16:59:16,975 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:59:16,976 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:59:16,985 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:59:16,985 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:59:16,986 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:59:16,987 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:59:16,989 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:59:16,990 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:59:16,991 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:59:16,992 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:59:16,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:59:16,993 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:59:16,994 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:59:16,994 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:59:16,995 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:59:16,996 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:59:16,997 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:59:16,998 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:59:17,000 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:59:17,002 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:59:17,003 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:59:17,004 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:59:17,005 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:59:17,007 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:59:17,008 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:59:17,008 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:59:17,009 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:59:17,009 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:59:17,010 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:59:17,010 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:59:17,010 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:59:17,011 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:59:17,011 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:59:17,012 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:59:17,012 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:59:17,013 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:59:17,013 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:59:17,013 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:59:17,013 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:59:17,014 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:59:17,014 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_14917f1c-961c-483f-87e4-cc8266fabc7c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 16:59:17,027 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:59:17,027 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:59:17,028 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 16:59:17,028 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 16:59:17,028 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 16:59:17,029 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 16:59:17,029 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 16:59:17,029 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 16:59:17,029 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 16:59:17,030 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:59:17,030 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 16:59:17,030 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 16:59:17,030 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:59:17,031 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 16:59:17,031 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 16:59:17,031 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 16:59:17,031 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 16:59:17,031 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 16:59:17,032 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 16:59:17,032 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 16:59:17,032 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 16:59:17,032 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:59:17,032 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 16:59:17,033 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:59:17,033 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 16:59:17,033 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 16:59:17,033 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 16:59:17,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:59:17,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:59:17,034 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 16:59:17,034 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 16:59:17,034 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 16:59:17,034 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 16:59:17,034 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 16:59:17,035 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:59:17,035 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 16:59:17,035 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_14917f1c-961c-483f-87e4-cc8266fabc7c/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(__VERIFIER_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 -> 5f66ecd5f6aef5b29bc80dee4a57cabf0f421223 [2019-12-07 16:59:17,209 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:59:17,220 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:59:17,222 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:59:17,224 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:59:17,224 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:59:17,225 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_14917f1c-961c-483f-87e4-cc8266fabc7c/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c [2019-12-07 16:59:17,267 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_14917f1c-961c-483f-87e4-cc8266fabc7c/bin/utaipan/data/6b7470949/c85e24e315f540a5b0972c25cf1a416a/FLAGdaec220ae [2019-12-07 16:59:17,759 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:59:17,759 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_14917f1c-961c-483f-87e4-cc8266fabc7c/sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c [2019-12-07 16:59:17,768 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_14917f1c-961c-483f-87e4-cc8266fabc7c/bin/utaipan/data/6b7470949/c85e24e315f540a5b0972c25cf1a416a/FLAGdaec220ae [2019-12-07 16:59:17,777 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_14917f1c-961c-483f-87e4-cc8266fabc7c/bin/utaipan/data/6b7470949/c85e24e315f540a5b0972c25cf1a416a [2019-12-07 16:59:17,779 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:59:17,780 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:59:17,781 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:59:17,781 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:59:17,783 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:59:17,783 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:59:17" (1/1) ... [2019-12-07 16:59:17,785 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b70e7d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:59:17, skipping insertion in model container [2019-12-07 16:59:17,785 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:59:17" (1/1) ... [2019-12-07 16:59:17,790 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:59:17,818 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:59:18,030 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:59:18,040 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 16:59:18,046 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:59:18,093 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:59:18,096 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 16:59:18,138 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:59:18,162 INFO L208 MainTranslator]: Completed translation [2019-12-07 16:59:18,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:59:18 WrapperNode [2019-12-07 16:59:18,162 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:59:18,162 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 16:59:18,162 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 16:59:18,163 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 16:59:18,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:59:18" (1/1) ... [2019-12-07 16:59:18,181 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:59:18" (1/1) ... [2019-12-07 16:59:18,207 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 16:59:18,207 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 16:59:18,207 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 16:59:18,207 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 16:59:18,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:59:18" (1/1) ... [2019-12-07 16:59:18,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:59:18" (1/1) ... [2019-12-07 16:59:18,218 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:59:18" (1/1) ... [2019-12-07 16:59:18,218 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:59:18" (1/1) ... [2019-12-07 16:59:18,228 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:59:18" (1/1) ... [2019-12-07 16:59:18,234 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:59:18" (1/1) ... [2019-12-07 16:59:18,237 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:59:18" (1/1) ... [2019-12-07 16:59:18,241 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 16:59:18,241 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 16:59:18,241 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 16:59:18,242 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 16:59:18,242 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:59:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_14917f1c-961c-483f-87e4-cc8266fabc7c/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 [2019-12-07 16:59:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 16:59:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 16:59:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 16:59:18,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 16:59:18,797 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 16:59:18,797 INFO L287 CfgBuilder]: Removed 156 assume(true) statements. [2019-12-07 16:59:18,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:59:18 BoogieIcfgContainer [2019-12-07 16:59:18,798 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 16:59:18,799 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 16:59:18,799 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 16:59:18,801 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 16:59:18,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 04:59:17" (1/3) ... [2019-12-07 16:59:18,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6018726 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:59:18, skipping insertion in model container [2019-12-07 16:59:18,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:59:18" (2/3) ... [2019-12-07 16:59:18,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6018726 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:59:18, skipping insertion in model container [2019-12-07 16:59:18,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:59:18" (3/3) ... [2019-12-07 16:59:18,803 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product49.cil.c [2019-12-07 16:59:18,810 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 16:59:18,816 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 16:59:18,824 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 16:59:18,840 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 16:59:18,841 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 16:59:18,841 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 16:59:18,841 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 16:59:18,841 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 16:59:18,841 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 16:59:18,841 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 16:59:18,841 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 16:59:18,854 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states. [2019-12-07 16:59:18,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 16:59:18,858 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:59:18,858 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:59:18,859 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:59:18,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:59:18,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1641629540, now seen corresponding path program 1 times [2019-12-07 16:59:18,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:59:18,872 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1031673044] [2019-12-07 16:59:18,872 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_14917f1c-961c-483f-87e4-cc8266fabc7c/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 [2019-12-07 16:59:19,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:59:19,015 INFO L264 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 16:59:19,020 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:59:19,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:59:19,032 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:59:19,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:59:19,036 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1031673044] [2019-12-07 16:59:19,037 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:59:19,037 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 16:59:19,037 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798480900] [2019-12-07 16:59:19,040 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 16:59:19,041 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:59:19,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 16:59:19,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 16:59:19,051 INFO L87 Difference]: Start difference. First operand 117 states. Second operand 2 states. [2019-12-07 16:59:19,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:59:19,072 INFO L93 Difference]: Finished difference Result 228 states and 347 transitions. [2019-12-07 16:59:19,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 16:59:19,074 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-12-07 16:59:19,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:59:19,082 INFO L225 Difference]: With dead ends: 228 [2019-12-07 16:59:19,082 INFO L226 Difference]: Without dead ends: 113 [2019-12-07 16:59:19,084 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 16:59:19,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-12-07 16:59:19,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2019-12-07 16:59:19,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-12-07 16:59:19,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 165 transitions. [2019-12-07 16:59:19,115 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 165 transitions. Word has length 16 [2019-12-07 16:59:19,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:59:19,115 INFO L462 AbstractCegarLoop]: Abstraction has 113 states and 165 transitions. [2019-12-07 16:59:19,115 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 16:59:19,115 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 165 transitions. [2019-12-07 16:59:19,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 16:59:19,116 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:59:19,116 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:59:19,317 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 16:59:19,318 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:59:19,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:59:19,319 INFO L82 PathProgramCache]: Analyzing trace with hash 594872643, now seen corresponding path program 1 times [2019-12-07 16:59:19,320 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:59:19,321 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2004767565] [2019-12-07 16:59:19,321 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_14917f1c-961c-483f-87e4-cc8266fabc7c/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 [2019-12-07 16:59:19,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:59:19,571 INFO L264 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 16:59:19,572 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:59:19,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:59:19,585 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:59:19,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:59:19,593 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2004767565] [2019-12-07 16:59:19,593 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:59:19,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 16:59:19,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105409690] [2019-12-07 16:59:19,595 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 16:59:19,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:59:19,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 16:59:19,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 16:59:19,596 INFO L87 Difference]: Start difference. First operand 113 states and 165 transitions. Second operand 4 states. [2019-12-07 16:59:19,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:59:19,610 INFO L93 Difference]: Finished difference Result 113 states and 165 transitions. [2019-12-07 16:59:19,610 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:59:19,611 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-12-07 16:59:19,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:59:19,612 INFO L225 Difference]: With dead ends: 113 [2019-12-07 16:59:19,612 INFO L226 Difference]: Without dead ends: 47 [2019-12-07 16:59:19,613 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 16:59:19,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-12-07 16:59:19,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2019-12-07 16:59:19,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-12-07 16:59:19,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2019-12-07 16:59:19,619 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 17 [2019-12-07 16:59:19,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:59:19,619 INFO L462 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2019-12-07 16:59:19,619 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 16:59:19,619 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2019-12-07 16:59:19,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 16:59:19,621 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:59:19,621 INFO L410 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] [2019-12-07 16:59:19,821 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 16:59:19,821 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:59:19,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:59:19,822 INFO L82 PathProgramCache]: Analyzing trace with hash 1404483435, now seen corresponding path program 1 times [2019-12-07 16:59:19,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:59:19,822 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1223718447] [2019-12-07 16:59:19,823 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_14917f1c-961c-483f-87e4-cc8266fabc7c/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 [2019-12-07 16:59:19,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:59:19,944 INFO L264 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 16:59:19,946 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:59:19,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:59:19,955 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:59:19,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:59:19,964 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1223718447] [2019-12-07 16:59:19,964 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:59:19,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 16:59:19,965 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88833135] [2019-12-07 16:59:19,965 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 16:59:19,965 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:59:19,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 16:59:19,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 16:59:19,966 INFO L87 Difference]: Start difference. First operand 47 states and 68 transitions. Second operand 4 states. [2019-12-07 16:59:19,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:59:19,975 INFO L93 Difference]: Finished difference Result 88 states and 130 transitions. [2019-12-07 16:59:19,975 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:59:19,975 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2019-12-07 16:59:19,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:59:19,976 INFO L225 Difference]: With dead ends: 88 [2019-12-07 16:59:19,976 INFO L226 Difference]: Without dead ends: 47 [2019-12-07 16:59:19,977 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 16:59:19,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-12-07 16:59:19,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2019-12-07 16:59:19,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-12-07 16:59:19,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2019-12-07 16:59:19,983 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 22 [2019-12-07 16:59:19,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:59:19,984 INFO L462 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2019-12-07 16:59:19,984 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 16:59:19,984 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2019-12-07 16:59:19,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 16:59:19,985 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:59:19,985 INFO L410 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] [2019-12-07 16:59:20,186 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 16:59:20,186 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:59:20,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:59:20,186 INFO L82 PathProgramCache]: Analyzing trace with hash -764351347, now seen corresponding path program 1 times [2019-12-07 16:59:20,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:59:20,187 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [469220990] [2019-12-07 16:59:20,187 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_14917f1c-961c-483f-87e4-cc8266fabc7c/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 [2019-12-07 16:59:20,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:59:20,302 INFO L264 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 16:59:20,303 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:59:20,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:59:20,309 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:59:20,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:59:20,312 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [469220990] [2019-12-07 16:59:20,312 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:59:20,313 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 16:59:20,313 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728143193] [2019-12-07 16:59:20,313 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 16:59:20,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:59:20,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 16:59:20,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:59:20,314 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand 3 states. [2019-12-07 16:59:20,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:59:20,369 INFO L93 Difference]: Finished difference Result 109 states and 158 transitions. [2019-12-07 16:59:20,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:59:20,369 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-12-07 16:59:20,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:59:20,370 INFO L225 Difference]: With dead ends: 109 [2019-12-07 16:59:20,370 INFO L226 Difference]: Without dead ends: 68 [2019-12-07 16:59:20,371 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:59:20,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2019-12-07 16:59:20,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2019-12-07 16:59:20,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2019-12-07 16:59:20,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 93 transitions. [2019-12-07 16:59:20,379 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 93 transitions. Word has length 24 [2019-12-07 16:59:20,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:59:20,379 INFO L462 AbstractCegarLoop]: Abstraction has 66 states and 93 transitions. [2019-12-07 16:59:20,380 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 16:59:20,380 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 93 transitions. [2019-12-07 16:59:20,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-07 16:59:20,381 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:59:20,381 INFO L410 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] [2019-12-07 16:59:20,582 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 16:59:20,583 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:59:20,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:59:20,584 INFO L82 PathProgramCache]: Analyzing trace with hash -805303330, now seen corresponding path program 1 times [2019-12-07 16:59:20,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:59:20,586 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [896668576] [2019-12-07 16:59:20,586 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_14917f1c-961c-483f-87e4-cc8266fabc7c/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 [2019-12-07 16:59:20,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:59:20,819 INFO L264 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 16:59:20,821 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:59:20,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:59:20,835 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:59:20,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:59:20,840 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [896668576] [2019-12-07 16:59:20,840 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:59:20,840 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 16:59:20,840 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260401763] [2019-12-07 16:59:20,841 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 16:59:20,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:59:20,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 16:59:20,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 16:59:20,841 INFO L87 Difference]: Start difference. First operand 66 states and 93 transitions. Second operand 5 states. [2019-12-07 16:59:20,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:59:20,888 INFO L93 Difference]: Finished difference Result 175 states and 245 transitions. [2019-12-07 16:59:20,888 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 16:59:20,888 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-12-07 16:59:20,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:59:20,889 INFO L225 Difference]: With dead ends: 175 [2019-12-07 16:59:20,889 INFO L226 Difference]: Without dead ends: 115 [2019-12-07 16:59:20,889 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 16:59:20,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-12-07 16:59:20,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 72. [2019-12-07 16:59:20,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-12-07 16:59:20,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 99 transitions. [2019-12-07 16:59:20,898 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 99 transitions. Word has length 30 [2019-12-07 16:59:20,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:59:20,898 INFO L462 AbstractCegarLoop]: Abstraction has 72 states and 99 transitions. [2019-12-07 16:59:20,898 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 16:59:20,898 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 99 transitions. [2019-12-07 16:59:20,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-07 16:59:20,899 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:59:20,900 INFO L410 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] [2019-12-07 16:59:21,100 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 16:59:21,101 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:59:21,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:59:21,102 INFO L82 PathProgramCache]: Analyzing trace with hash 1857207713, now seen corresponding path program 1 times [2019-12-07 16:59:21,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:59:21,104 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [269861726] [2019-12-07 16:59:21,105 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_14917f1c-961c-483f-87e4-cc8266fabc7c/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 [2019-12-07 16:59:21,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:59:21,291 INFO L264 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 16:59:21,293 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:59:21,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:59:21,312 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:59:21,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:59:21,316 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [269861726] [2019-12-07 16:59:21,316 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:59:21,316 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-12-07 16:59:21,316 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25618914] [2019-12-07 16:59:21,316 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 16:59:21,317 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:59:21,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 16:59:21,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 16:59:21,317 INFO L87 Difference]: Start difference. First operand 72 states and 99 transitions. Second operand 5 states. [2019-12-07 16:59:21,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:59:21,397 INFO L93 Difference]: Finished difference Result 382 states and 538 transitions. [2019-12-07 16:59:21,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 16:59:21,398 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-12-07 16:59:21,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:59:21,400 INFO L225 Difference]: With dead ends: 382 [2019-12-07 16:59:21,400 INFO L226 Difference]: Without dead ends: 316 [2019-12-07 16:59:21,401 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-07 16:59:21,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2019-12-07 16:59:21,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 132. [2019-12-07 16:59:21,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-12-07 16:59:21,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 181 transitions. [2019-12-07 16:59:21,416 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 181 transitions. Word has length 30 [2019-12-07 16:59:21,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:59:21,416 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 181 transitions. [2019-12-07 16:59:21,416 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 16:59:21,416 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 181 transitions. [2019-12-07 16:59:21,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-07 16:59:21,417 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:59:21,417 INFO L410 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] [2019-12-07 16:59:21,618 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 16:59:21,619 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:59:21,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:59:21,619 INFO L82 PathProgramCache]: Analyzing trace with hash -1765991081, now seen corresponding path program 1 times [2019-12-07 16:59:21,619 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:59:21,619 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [223313139] [2019-12-07 16:59:21,619 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_14917f1c-961c-483f-87e4-cc8266fabc7c/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 [2019-12-07 16:59:21,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:59:21,718 INFO L264 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 16:59:21,719 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:59:21,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:59:21,730 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:59:21,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:59:21,733 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [223313139] [2019-12-07 16:59:21,733 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:59:21,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 16:59:21,734 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161410981] [2019-12-07 16:59:21,734 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 16:59:21,734 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:59:21,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 16:59:21,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 16:59:21,734 INFO L87 Difference]: Start difference. First operand 132 states and 181 transitions. Second operand 5 states. [2019-12-07 16:59:21,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:59:21,857 INFO L93 Difference]: Finished difference Result 378 states and 520 transitions. [2019-12-07 16:59:21,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 16:59:21,857 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-12-07 16:59:21,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:59:21,859 INFO L225 Difference]: With dead ends: 378 [2019-12-07 16:59:21,859 INFO L226 Difference]: Without dead ends: 376 [2019-12-07 16:59:21,860 INFO L630 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 [2019-12-07 16:59:21,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2019-12-07 16:59:21,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 132. [2019-12-07 16:59:21,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-12-07 16:59:21,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 180 transitions. [2019-12-07 16:59:21,870 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 180 transitions. Word has length 31 [2019-12-07 16:59:21,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:59:21,870 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 180 transitions. [2019-12-07 16:59:21,870 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 16:59:21,870 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 180 transitions. [2019-12-07 16:59:21,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-07 16:59:21,871 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:59:21,871 INFO L410 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] [2019-12-07 16:59:22,071 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 16:59:22,072 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:59:22,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:59:22,072 INFO L82 PathProgramCache]: Analyzing trace with hash -526561838, now seen corresponding path program 1 times [2019-12-07 16:59:22,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:59:22,072 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [410780854] [2019-12-07 16:59:22,073 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_14917f1c-961c-483f-87e4-cc8266fabc7c/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 [2019-12-07 16:59:22,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:59:22,165 INFO L264 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 16:59:22,166 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:59:22,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:59:22,174 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:59:22,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:59:22,184 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [410780854] [2019-12-07 16:59:22,184 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:59:22,184 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 16:59:22,184 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326300654] [2019-12-07 16:59:22,184 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 16:59:22,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:59:22,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 16:59:22,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 16:59:22,185 INFO L87 Difference]: Start difference. First operand 132 states and 180 transitions. Second operand 6 states. [2019-12-07 16:59:22,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:59:22,236 INFO L93 Difference]: Finished difference Result 354 states and 478 transitions. [2019-12-07 16:59:22,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 16:59:22,237 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2019-12-07 16:59:22,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:59:22,238 INFO L225 Difference]: With dead ends: 354 [2019-12-07 16:59:22,239 INFO L226 Difference]: Without dead ends: 228 [2019-12-07 16:59:22,239 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 16:59:22,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2019-12-07 16:59:22,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 140. [2019-12-07 16:59:22,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-12-07 16:59:22,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 188 transitions. [2019-12-07 16:59:22,252 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 188 transitions. Word has length 31 [2019-12-07 16:59:22,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:59:22,253 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 188 transitions. [2019-12-07 16:59:22,253 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 16:59:22,253 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 188 transitions. [2019-12-07 16:59:22,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-07 16:59:22,253 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:59:22,253 INFO L410 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] [2019-12-07 16:59:22,454 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-12-07 16:59:22,455 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:59:22,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:59:22,456 INFO L82 PathProgramCache]: Analyzing trace with hash -268396400, now seen corresponding path program 1 times [2019-12-07 16:59:22,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:59:22,457 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [106874855] [2019-12-07 16:59:22,457 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_14917f1c-961c-483f-87e4-cc8266fabc7c/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 [2019-12-07 16:59:22,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:59:22,583 INFO L264 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 16:59:22,584 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:59:22,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:59:22,590 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:59:22,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:59:22,597 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [106874855] [2019-12-07 16:59:22,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:59:22,597 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 16:59:22,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354421144] [2019-12-07 16:59:22,597 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 16:59:22,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:59:22,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 16:59:22,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 16:59:22,598 INFO L87 Difference]: Start difference. First operand 140 states and 188 transitions. Second operand 4 states. [2019-12-07 16:59:22,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:59:22,648 INFO L93 Difference]: Finished difference Result 430 states and 580 transitions. [2019-12-07 16:59:22,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 16:59:22,649 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-07 16:59:22,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:59:22,650 INFO L225 Difference]: With dead ends: 430 [2019-12-07 16:59:22,650 INFO L226 Difference]: Without dead ends: 296 [2019-12-07 16:59:22,651 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 16:59:22,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2019-12-07 16:59:22,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 244. [2019-12-07 16:59:22,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2019-12-07 16:59:22,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 325 transitions. [2019-12-07 16:59:22,664 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 325 transitions. Word has length 31 [2019-12-07 16:59:22,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:59:22,665 INFO L462 AbstractCegarLoop]: Abstraction has 244 states and 325 transitions. [2019-12-07 16:59:22,665 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 16:59:22,665 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 325 transitions. [2019-12-07 16:59:22,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-07 16:59:22,665 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:59:22,666 INFO L410 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] [2019-12-07 16:59:22,866 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2019-12-07 16:59:22,866 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:59:22,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:59:22,867 INFO L82 PathProgramCache]: Analyzing trace with hash 1913811026, now seen corresponding path program 1 times [2019-12-07 16:59:22,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:59:22,867 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [748509032] [2019-12-07 16:59:22,867 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_14917f1c-961c-483f-87e4-cc8266fabc7c/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 [2019-12-07 16:59:23,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:59:24,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:59:24,631 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 16:59:24,632 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 16:59:24,832 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2019-12-07 16:59:24,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 04:59:24 BoogieIcfgContainer [2019-12-07 16:59:24,925 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 16:59:24,925 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 16:59:24,925 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 16:59:24,925 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 16:59:24,926 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:59:18" (3/4) ... [2019-12-07 16:59:24,927 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 16:59:24,984 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_14917f1c-961c-483f-87e4-cc8266fabc7c/bin/utaipan/witness.graphml [2019-12-07 16:59:24,985 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 16:59:24,986 INFO L168 Benchmark]: Toolchain (without parser) took 7205.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 208.7 MB). Free memory was 952.4 MB in the beginning and 968.9 MB in the end (delta: -16.5 MB). Peak memory consumption was 192.1 MB. Max. memory is 11.5 GB. [2019-12-07 16:59:24,986 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:59:24,986 INFO L168 Benchmark]: CACSL2BoogieTranslator took 381.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -152.9 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. [2019-12-07 16:59:24,987 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 16:59:24,987 INFO L168 Benchmark]: Boogie Preprocessor took 34.11 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:59:24,987 INFO L168 Benchmark]: RCFGBuilder took 556.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 81.0 MB). Peak memory consumption was 81.0 MB. Max. memory is 11.5 GB. [2019-12-07 16:59:24,987 INFO L168 Benchmark]: TraceAbstraction took 6126.10 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 77.1 MB). Free memory was 1.0 GB in the beginning and 983.8 MB in the end (delta: 28.2 MB). Peak memory consumption was 105.3 MB. Max. memory is 11.5 GB. [2019-12-07 16:59:24,988 INFO L168 Benchmark]: Witness Printer took 59.72 ms. Allocated memory is still 1.2 GB. Free memory was 983.8 MB in the beginning and 968.9 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. [2019-12-07 16:59:24,989 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 381.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -152.9 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.11 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 556.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 81.0 MB). Peak memory consumption was 81.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6126.10 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 77.1 MB). Free memory was 1.0 GB in the beginning and 983.8 MB in the end (delta: 28.2 MB). Peak memory consumption was 105.3 MB. Max. memory is 11.5 GB. * Witness Printer took 59.72 ms. Allocated memory is still 1.2 GB. Free memory was 983.8 MB in the beginning and 968.9 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 950]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L69] int cleanupTimeShifts = 4; [L342] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L545] int pumpRunning = 0; [L546] int systemActive = 1; [L843] int waterLevel = 1; [L844] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L150] int retValue_acc ; [L151] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L833] int retValue_acc ; [L836] retValue_acc = 1 [L837] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L157] tmp = valid_product() [L159] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L743] int splverifierCounter ; [L744] int tmp ; [L745] int tmp___0 ; [L746] int tmp___1 ; [L747] int tmp___2 ; [L750] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L752] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L754] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L760] tmp = __VERIFIER_nondet_int() [L762] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L861] COND TRUE waterLevel < 2 [L862] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L770] tmp___0 = __VERIFIER_nondet_int() [L772] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L873] COND FALSE !(\read(methaneLevelCritical)) [L876] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L780] tmp___2 = __VERIFIER_nondet_int() [L782] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L552] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L559] COND TRUE \read(systemActive) [L607] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L610] COND FALSE !(\read(pumpRunning)) [L581] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L584] COND TRUE ! pumpRunning [L704] int retValue_acc ; [L705] int tmp ; [L706] int tmp___0 ; [L923] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L926] COND FALSE !(waterLevel < 2) [L930] retValue_acc = 0 [L931] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L710] tmp = isHighWaterSensorDry() [L712] COND FALSE !(\read(tmp)) [L715] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L717] retValue_acc = tmp___0 [L718] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L586] tmp = isHighWaterLevel() [L588] COND TRUE \read(tmp) [L635] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L44] int tmp ; [L45] int tmp___0 ; [L882] int retValue_acc ; [L885] retValue_acc = methaneLevelCritical [L886] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L49] tmp = isMethaneLevelCritical() [L51] COND TRUE \read(tmp) [L659] int retValue_acc ; [L662] retValue_acc = pumpRunning [L663] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L53] tmp___0 = isPumpRunning() [L55] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L950] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 117 locations, 3 error locations. Result: UNSAFE, OverallTime: 5.9s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 847 SDtfs, 1075 SDslu, 1244 SDs, 0 SdLazy, 160 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 462 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=244occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 613 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 264 NumberOfCodeBlocks, 264 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 446 ConstructedInterpolants, 0 QuantifiedInterpolants, 23099 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1698 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...