./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product36.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_60153aa6-3ffe-4a30-bd5a-a78a1055597f/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_60153aa6-3ffe-4a30-bd5a-a78a1055597f/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_60153aa6-3ffe-4a30-bd5a-a78a1055597f/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_60153aa6-3ffe-4a30-bd5a-a78a1055597f/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_60153aa6-3ffe-4a30-bd5a-a78a1055597f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_60153aa6-3ffe-4a30-bd5a-a78a1055597f/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 8094c843e4d897e4501a7b90ca3369f741555e9e ...................................................................................................................................... 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_60153aa6-3ffe-4a30-bd5a-a78a1055597f/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_60153aa6-3ffe-4a30-bd5a-a78a1055597f/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_60153aa6-3ffe-4a30-bd5a-a78a1055597f/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_60153aa6-3ffe-4a30-bd5a-a78a1055597f/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_60153aa6-3ffe-4a30-bd5a-a78a1055597f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_60153aa6-3ffe-4a30-bd5a-a78a1055597f/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 8094c843e4d897e4501a7b90ca3369f741555e9e ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 21:50:11,742 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 21:50:11,743 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 21:50:11,753 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 21:50:11,754 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 21:50:11,754 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 21:50:11,755 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 21:50:11,757 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 21:50:11,758 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 21:50:11,759 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 21:50:11,760 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 21:50:11,760 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 21:50:11,761 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 21:50:11,761 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 21:50:11,762 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 21:50:11,763 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 21:50:11,763 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 21:50:11,764 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 21:50:11,766 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 21:50:11,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 21:50:11,768 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 21:50:11,769 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 21:50:11,770 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 21:50:11,770 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 21:50:11,772 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 21:50:11,772 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 21:50:11,772 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 21:50:11,773 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 21:50:11,773 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 21:50:11,773 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 21:50:11,774 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 21:50:11,774 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 21:50:11,774 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 21:50:11,775 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 21:50:11,775 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 21:50:11,776 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 21:50:11,776 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 21:50:11,776 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 21:50:11,776 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 21:50:11,777 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 21:50:11,777 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 21:50:11,778 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_60153aa6-3ffe-4a30-bd5a-a78a1055597f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 21:50:11,788 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 21:50:11,788 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 21:50:11,789 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 21:50:11,789 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 21:50:11,789 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 21:50:11,789 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 21:50:11,789 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 21:50:11,789 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 21:50:11,790 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 21:50:11,790 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 21:50:11,790 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 21:50:11,790 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 21:50:11,790 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 21:50:11,790 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 21:50:11,790 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 21:50:11,791 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 21:50:11,791 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 21:50:11,791 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 21:50:11,791 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 21:50:11,791 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 21:50:11,792 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 21:50:11,792 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 21:50:11,792 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 21:50:11,792 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 21:50:11,792 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 21:50:11,792 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 21:50:11,792 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 21:50:11,792 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 21:50:11,793 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 21:50:11,793 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 21:50:11,793 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 21:50:11,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 21:50:11,793 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 21:50:11,793 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 21:50:11,793 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 21:50:11,793 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 21:50:11,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 21:50:11,794 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 21:50:11,794 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 21:50:11,794 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 21:50:11,794 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_60153aa6-3ffe-4a30-bd5a-a78a1055597f/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 -> 8094c843e4d897e4501a7b90ca3369f741555e9e [2019-12-07 21:50:11,895 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 21:50:11,904 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 21:50:11,907 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 21:50:11,908 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 21:50:11,909 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 21:50:11,909 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_60153aa6-3ffe-4a30-bd5a-a78a1055597f/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c [2019-12-07 21:50:11,947 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_60153aa6-3ffe-4a30-bd5a-a78a1055597f/bin/utaipan/data/54c577bed/dbd6bb76f55e45059cd6842d2797275b/FLAGaafa25c5f [2019-12-07 21:50:12,400 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 21:50:12,400 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_60153aa6-3ffe-4a30-bd5a-a78a1055597f/sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c [2019-12-07 21:50:12,409 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_60153aa6-3ffe-4a30-bd5a-a78a1055597f/bin/utaipan/data/54c577bed/dbd6bb76f55e45059cd6842d2797275b/FLAGaafa25c5f [2019-12-07 21:50:12,417 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_60153aa6-3ffe-4a30-bd5a-a78a1055597f/bin/utaipan/data/54c577bed/dbd6bb76f55e45059cd6842d2797275b [2019-12-07 21:50:12,419 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 21:50:12,420 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 21:50:12,421 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 21:50:12,421 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 21:50:12,423 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 21:50:12,423 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:50:12" (1/1) ... [2019-12-07 21:50:12,425 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ed7335 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:50:12, skipping insertion in model container [2019-12-07 21:50:12,425 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:50:12" (1/1) ... [2019-12-07 21:50:12,430 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 21:50:12,456 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 21:50:12,664 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:50:12,672 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 21:50:12,673 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@8d35002 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:50:12, skipping insertion in model container [2019-12-07 21:50:12,673 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 21:50:12,673 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 21:50:12,675 INFO L168 Benchmark]: Toolchain (without parser) took 254.47 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -158.8 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-12-07 21:50:12,676 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 21:50:12,676 INFO L168 Benchmark]: CACSL2BoogieTranslator took 252.69 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -164.2 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-12-07 21:50:12,677 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 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 252.69 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -164.2 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 470]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 21:50:13,802 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 21:50:13,804 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 21:50:13,811 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 21:50:13,812 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 21:50:13,812 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 21:50:13,813 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 21:50:13,815 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 21:50:13,816 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 21:50:13,816 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 21:50:13,817 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 21:50:13,818 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 21:50:13,818 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 21:50:13,819 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 21:50:13,819 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 21:50:13,820 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 21:50:13,821 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 21:50:13,821 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 21:50:13,823 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 21:50:13,825 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 21:50:13,826 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 21:50:13,826 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 21:50:13,827 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 21:50:13,828 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 21:50:13,830 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 21:50:13,830 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 21:50:13,830 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 21:50:13,831 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 21:50:13,831 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 21:50:13,832 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 21:50:13,832 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 21:50:13,832 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 21:50:13,833 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 21:50:13,833 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 21:50:13,834 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 21:50:13,834 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 21:50:13,834 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 21:50:13,835 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 21:50:13,835 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 21:50:13,835 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 21:50:13,836 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 21:50:13,836 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_60153aa6-3ffe-4a30-bd5a-a78a1055597f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 21:50:13,847 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 21:50:13,847 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 21:50:13,847 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 21:50:13,848 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 21:50:13,848 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 21:50:13,848 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 21:50:13,848 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 21:50:13,848 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 21:50:13,848 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 21:50:13,849 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 21:50:13,849 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 21:50:13,849 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 21:50:13,849 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 21:50:13,849 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 21:50:13,849 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 21:50:13,850 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 21:50:13,850 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 21:50:13,850 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 21:50:13,850 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 21:50:13,850 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 21:50:13,850 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 21:50:13,850 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 21:50:13,850 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 21:50:13,851 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 21:50:13,851 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 21:50:13,851 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 21:50:13,851 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 21:50:13,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 21:50:13,851 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 21:50:13,851 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 21:50:13,851 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 21:50:13,852 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 21:50:13,852 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 21:50:13,852 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 21:50:13,852 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 21:50:13,852 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 21:50:13,852 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_60153aa6-3ffe-4a30-bd5a-a78a1055597f/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 -> 8094c843e4d897e4501a7b90ca3369f741555e9e [2019-12-07 21:50:14,019 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 21:50:14,029 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 21:50:14,032 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 21:50:14,033 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 21:50:14,034 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 21:50:14,034 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_60153aa6-3ffe-4a30-bd5a-a78a1055597f/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c [2019-12-07 21:50:14,078 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_60153aa6-3ffe-4a30-bd5a-a78a1055597f/bin/utaipan/data/cf056a47f/b290920bc14b4192883189db339c525b/FLAGc726b3702 [2019-12-07 21:50:14,473 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 21:50:14,473 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_60153aa6-3ffe-4a30-bd5a-a78a1055597f/sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c [2019-12-07 21:50:14,483 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_60153aa6-3ffe-4a30-bd5a-a78a1055597f/bin/utaipan/data/cf056a47f/b290920bc14b4192883189db339c525b/FLAGc726b3702 [2019-12-07 21:50:14,854 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_60153aa6-3ffe-4a30-bd5a-a78a1055597f/bin/utaipan/data/cf056a47f/b290920bc14b4192883189db339c525b [2019-12-07 21:50:14,858 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 21:50:14,860 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 21:50:14,861 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 21:50:14,861 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 21:50:14,866 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 21:50:14,866 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:50:14" (1/1) ... [2019-12-07 21:50:14,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9aca9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:50:14, skipping insertion in model container [2019-12-07 21:50:14,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:50:14" (1/1) ... [2019-12-07 21:50:14,875 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 21:50:14,901 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 21:50:15,077 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:50:15,120 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 21:50:15,125 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 21:50:15,165 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:50:15,169 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 21:50:15,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:50:15,230 INFO L208 MainTranslator]: Completed translation [2019-12-07 21:50:15,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:50:15 WrapperNode [2019-12-07 21:50:15,231 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 21:50:15,231 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 21:50:15,232 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 21:50:15,232 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 21:50:15,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:50:15" (1/1) ... [2019-12-07 21:50:15,251 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:50:15" (1/1) ... [2019-12-07 21:50:15,275 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 21:50:15,275 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 21:50:15,275 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 21:50:15,275 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 21:50:15,282 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:50:15" (1/1) ... [2019-12-07 21:50:15,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:50:15" (1/1) ... [2019-12-07 21:50:15,285 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:50:15" (1/1) ... [2019-12-07 21:50:15,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:50:15" (1/1) ... [2019-12-07 21:50:15,294 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:50:15" (1/1) ... [2019-12-07 21:50:15,299 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:50:15" (1/1) ... [2019-12-07 21:50:15,301 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:50:15" (1/1) ... [2019-12-07 21:50:15,303 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 21:50:15,304 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 21:50:15,304 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 21:50:15,304 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 21:50:15,304 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:50:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60153aa6-3ffe-4a30-bd5a-a78a1055597f/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 21:50:15,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 21:50:15,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 21:50:15,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 21:50:15,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 21:50:15,817 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 21:50:15,817 INFO L287 CfgBuilder]: Removed 102 assume(true) statements. [2019-12-07 21:50:15,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:50:15 BoogieIcfgContainer [2019-12-07 21:50:15,819 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 21:50:15,820 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 21:50:15,820 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 21:50:15,822 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 21:50:15,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 09:50:14" (1/3) ... [2019-12-07 21:50:15,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12365e76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 09:50:15, skipping insertion in model container [2019-12-07 21:50:15,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:50:15" (2/3) ... [2019-12-07 21:50:15,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12365e76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 09:50:15, skipping insertion in model container [2019-12-07 21:50:15,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:50:15" (3/3) ... [2019-12-07 21:50:15,826 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product36.cil.c [2019-12-07 21:50:15,834 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 21:50:15,841 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 21:50:15,852 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 21:50:15,871 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 21:50:15,871 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 21:50:15,871 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 21:50:15,871 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 21:50:15,871 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 21:50:15,872 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 21:50:15,872 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 21:50:15,872 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 21:50:15,884 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2019-12-07 21:50:15,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 21:50:15,888 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:50:15,889 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 21:50:15,889 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:50:15,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:50:15,894 INFO L82 PathProgramCache]: Analyzing trace with hash -502845476, now seen corresponding path program 1 times [2019-12-07 21:50:15,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:50:15,903 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1480696762] [2019-12-07 21:50:15,903 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60153aa6-3ffe-4a30-bd5a-a78a1055597f/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 21:50:16,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:50:16,043 INFO L264 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 21:50:16,047 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:50:16,058 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 21:50:16,059 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:50:16,062 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 21:50:16,063 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1480696762] [2019-12-07 21:50:16,064 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:50:16,064 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 21:50:16,065 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144881782] [2019-12-07 21:50:16,068 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 21:50:16,068 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:50:16,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 21:50:16,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 21:50:16,079 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 2 states. [2019-12-07 21:50:16,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:50:16,100 INFO L93 Difference]: Finished difference Result 154 states and 233 transitions. [2019-12-07 21:50:16,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 21:50:16,101 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-12-07 21:50:16,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:50:16,110 INFO L225 Difference]: With dead ends: 154 [2019-12-07 21:50:16,110 INFO L226 Difference]: Without dead ends: 76 [2019-12-07 21:50:16,113 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 21:50:16,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2019-12-07 21:50:16,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2019-12-07 21:50:16,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-12-07 21:50:16,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 108 transitions. [2019-12-07 21:50:16,144 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 108 transitions. Word has length 16 [2019-12-07 21:50:16,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:50:16,145 INFO L462 AbstractCegarLoop]: Abstraction has 76 states and 108 transitions. [2019-12-07 21:50:16,145 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 21:50:16,145 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 108 transitions. [2019-12-07 21:50:16,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 21:50:16,146 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:50:16,146 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 21:50:16,347 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 21:50:16,347 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:50:16,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:50:16,348 INFO L82 PathProgramCache]: Analyzing trace with hash -1549602373, now seen corresponding path program 1 times [2019-12-07 21:50:16,349 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:50:16,350 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [356207384] [2019-12-07 21:50:16,350 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60153aa6-3ffe-4a30-bd5a-a78a1055597f/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 21:50:16,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:50:16,501 INFO L264 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 21:50:16,503 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:50:16,518 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 21:50:16,518 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:50:16,527 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 21:50:16,528 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [356207384] [2019-12-07 21:50:16,528 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:50:16,528 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 21:50:16,528 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787768106] [2019-12-07 21:50:16,530 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 21:50:16,530 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:50:16,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 21:50:16,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 21:50:16,530 INFO L87 Difference]: Start difference. First operand 76 states and 108 transitions. Second operand 4 states. [2019-12-07 21:50:16,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:50:16,543 INFO L93 Difference]: Finished difference Result 76 states and 108 transitions. [2019-12-07 21:50:16,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 21:50:16,544 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-12-07 21:50:16,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:50:16,545 INFO L225 Difference]: With dead ends: 76 [2019-12-07 21:50:16,545 INFO L226 Difference]: Without dead ends: 36 [2019-12-07 21:50:16,546 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 21:50:16,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-07 21:50:16,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-07 21:50:16,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-07 21:50:16,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2019-12-07 21:50:16,551 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 51 transitions. Word has length 17 [2019-12-07 21:50:16,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:50:16,551 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 51 transitions. [2019-12-07 21:50:16,551 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 21:50:16,551 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2019-12-07 21:50:16,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 21:50:16,552 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:50:16,552 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 21:50:16,753 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 21:50:16,753 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:50:16,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:50:16,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1499295122, now seen corresponding path program 1 times [2019-12-07 21:50:16,754 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:50:16,754 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [255987938] [2019-12-07 21:50:16,754 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60153aa6-3ffe-4a30-bd5a-a78a1055597f/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 21:50:16,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:50:16,881 INFO L264 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 21:50:16,882 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:50:16,889 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 21:50:16,889 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:50:16,894 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 21:50:16,895 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [255987938] [2019-12-07 21:50:16,895 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:50:16,895 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 21:50:16,895 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511904734] [2019-12-07 21:50:16,895 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 21:50:16,896 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:50:16,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 21:50:16,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 21:50:16,896 INFO L87 Difference]: Start difference. First operand 36 states and 51 transitions. Second operand 4 states. [2019-12-07 21:50:16,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:50:16,956 INFO L93 Difference]: Finished difference Result 119 states and 175 transitions. [2019-12-07 21:50:16,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 21:50:16,956 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2019-12-07 21:50:16,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:50:16,958 INFO L225 Difference]: With dead ends: 119 [2019-12-07 21:50:16,958 INFO L226 Difference]: Without dead ends: 89 [2019-12-07 21:50:16,959 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 21:50:16,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2019-12-07 21:50:16,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 55. [2019-12-07 21:50:16,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-12-07 21:50:16,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 80 transitions. [2019-12-07 21:50:16,969 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 80 transitions. Word has length 22 [2019-12-07 21:50:16,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:50:16,970 INFO L462 AbstractCegarLoop]: Abstraction has 55 states and 80 transitions. [2019-12-07 21:50:16,970 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 21:50:16,970 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 80 transitions. [2019-12-07 21:50:16,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-12-07 21:50:16,971 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:50:16,971 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] [2019-12-07 21:50:17,172 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 21:50:17,172 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:50:17,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:50:17,172 INFO L82 PathProgramCache]: Analyzing trace with hash -1870150441, now seen corresponding path program 1 times [2019-12-07 21:50:17,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:50:17,173 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1848347122] [2019-12-07 21:50:17,174 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60153aa6-3ffe-4a30-bd5a-a78a1055597f/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 21:50:17,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:50:17,285 INFO L264 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 21:50:17,286 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:50:17,291 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 21:50:17,291 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:50:17,293 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 21:50:17,293 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1848347122] [2019-12-07 21:50:17,293 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:50:17,293 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 21:50:17,294 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302280651] [2019-12-07 21:50:17,294 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 21:50:17,294 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:50:17,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 21:50:17,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 21:50:17,294 INFO L87 Difference]: Start difference. First operand 55 states and 80 transitions. Second operand 3 states. [2019-12-07 21:50:17,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:50:17,340 INFO L93 Difference]: Finished difference Result 125 states and 184 transitions. [2019-12-07 21:50:17,341 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 21:50:17,341 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-12-07 21:50:17,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:50:17,341 INFO L225 Difference]: With dead ends: 125 [2019-12-07 21:50:17,342 INFO L226 Difference]: Without dead ends: 76 [2019-12-07 21:50:17,342 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 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 21:50:17,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2019-12-07 21:50:17,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 74. [2019-12-07 21:50:17,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-12-07 21:50:17,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 105 transitions. [2019-12-07 21:50:17,350 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 105 transitions. Word has length 23 [2019-12-07 21:50:17,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:50:17,350 INFO L462 AbstractCegarLoop]: Abstraction has 74 states and 105 transitions. [2019-12-07 21:50:17,350 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 21:50:17,350 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 105 transitions. [2019-12-07 21:50:17,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 21:50:17,351 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:50:17,351 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] [2019-12-07 21:50:17,551 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 21:50:17,552 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:50:17,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:50:17,552 INFO L82 PathProgramCache]: Analyzing trace with hash 944519591, now seen corresponding path program 1 times [2019-12-07 21:50:17,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:50:17,552 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1910110540] [2019-12-07 21:50:17,552 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60153aa6-3ffe-4a30-bd5a-a78a1055597f/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 21:50:17,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:50:17,649 INFO L264 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 21:50:17,650 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:50:17,665 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 21:50:17,665 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:50:17,689 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 21:50:17,689 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1910110540] [2019-12-07 21:50:17,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:50:17,690 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-12-07 21:50:17,690 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479856599] [2019-12-07 21:50:17,690 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 21:50:17,690 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:50:17,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 21:50:17,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 21:50:17,691 INFO L87 Difference]: Start difference. First operand 74 states and 105 transitions. Second operand 8 states. [2019-12-07 21:50:17,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:50:17,901 INFO L93 Difference]: Finished difference Result 507 states and 746 transitions. [2019-12-07 21:50:17,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-07 21:50:17,902 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2019-12-07 21:50:17,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:50:17,905 INFO L225 Difference]: With dead ends: 507 [2019-12-07 21:50:17,905 INFO L226 Difference]: Without dead ends: 439 [2019-12-07 21:50:17,906 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2019-12-07 21:50:17,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2019-12-07 21:50:17,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 189. [2019-12-07 21:50:17,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2019-12-07 21:50:17,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 263 transitions. [2019-12-07 21:50:17,926 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 263 transitions. Word has length 25 [2019-12-07 21:50:17,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:50:17,927 INFO L462 AbstractCegarLoop]: Abstraction has 189 states and 263 transitions. [2019-12-07 21:50:17,927 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 21:50:17,927 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 263 transitions. [2019-12-07 21:50:17,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-12-07 21:50:17,929 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:50:17,929 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 21:50:18,129 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 21:50:18,130 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:50:18,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:50:18,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1143002491, now seen corresponding path program 1 times [2019-12-07 21:50:18,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:50:18,132 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1177503442] [2019-12-07 21:50:18,132 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60153aa6-3ffe-4a30-bd5a-a78a1055597f/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 21:50:18,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:50:18,267 INFO L264 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 21:50:18,269 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:50:18,280 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 21:50:18,280 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:50:18,301 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 21:50:18,302 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1177503442] [2019-12-07 21:50:18,302 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [779528108] [2019-12-07 21:50:18,302 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60153aa6-3ffe-4a30-bd5a-a78a1055597f/bin/utaipan/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 21:50:18,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:50:18,393 INFO L264 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 21:50:18,394 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:50:18,416 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-12-07 21:50:18,416 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:50:18,420 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-12-07 21:50:18,420 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2019-12-07 21:50:18,420 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [3, 3] total 9 [2019-12-07 21:50:18,420 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326415209] [2019-12-07 21:50:18,421 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 21:50:18,421 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:50:18,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 21:50:18,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-12-07 21:50:18,421 INFO L87 Difference]: Start difference. First operand 189 states and 263 transitions. Second operand 5 states. [2019-12-07 21:50:18,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:50:18,543 INFO L93 Difference]: Finished difference Result 429 states and 608 transitions. [2019-12-07 21:50:18,543 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 21:50:18,543 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2019-12-07 21:50:18,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:50:18,545 INFO L225 Difference]: With dead ends: 429 [2019-12-07 21:50:18,546 INFO L226 Difference]: Without dead ends: 427 [2019-12-07 21:50:18,546 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2019-12-07 21:50:18,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2019-12-07 21:50:18,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 189. [2019-12-07 21:50:18,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2019-12-07 21:50:18,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 261 transitions. [2019-12-07 21:50:18,560 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 261 transitions. Word has length 41 [2019-12-07 21:50:18,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:50:18,560 INFO L462 AbstractCegarLoop]: Abstraction has 189 states and 261 transitions. [2019-12-07 21:50:18,561 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 21:50:18,561 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 261 transitions. [2019-12-07 21:50:18,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-12-07 21:50:18,562 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:50:18,562 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 21:50:18,963 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3,8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 21:50:18,964 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:50:18,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:50:18,964 INFO L82 PathProgramCache]: Analyzing trace with hash -122499722, now seen corresponding path program 1 times [2019-12-07 21:50:18,964 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:50:18,964 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1092447153] [2019-12-07 21:50:18,964 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60153aa6-3ffe-4a30-bd5a-a78a1055597f/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 21:50:19,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:50:19,065 INFO L264 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 21:50:19,066 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:50:19,078 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 21:50:19,078 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:50:19,081 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 21:50:19,081 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1092447153] [2019-12-07 21:50:19,081 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:50:19,081 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 21:50:19,081 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636228204] [2019-12-07 21:50:19,081 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 21:50:19,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:50:19,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 21:50:19,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 21:50:19,082 INFO L87 Difference]: Start difference. First operand 189 states and 261 transitions. Second operand 5 states. [2019-12-07 21:50:19,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:50:19,134 INFO L93 Difference]: Finished difference Result 566 states and 779 transitions. [2019-12-07 21:50:19,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 21:50:19,134 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2019-12-07 21:50:19,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:50:19,136 INFO L225 Difference]: With dead ends: 566 [2019-12-07 21:50:19,136 INFO L226 Difference]: Without dead ends: 383 [2019-12-07 21:50:19,137 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 85 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 21:50:19,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2019-12-07 21:50:19,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 198. [2019-12-07 21:50:19,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2019-12-07 21:50:19,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 270 transitions. [2019-12-07 21:50:19,151 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 270 transitions. Word has length 44 [2019-12-07 21:50:19,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:50:19,151 INFO L462 AbstractCegarLoop]: Abstraction has 198 states and 270 transitions. [2019-12-07 21:50:19,151 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 21:50:19,151 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 270 transitions. [2019-12-07 21:50:19,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-12-07 21:50:19,152 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:50:19,152 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 21:50:19,353 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-12-07 21:50:19,353 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:50:19,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:50:19,353 INFO L82 PathProgramCache]: Analyzing trace with hash 18048888, now seen corresponding path program 1 times [2019-12-07 21:50:19,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:50:19,354 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [698933419] [2019-12-07 21:50:19,354 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60153aa6-3ffe-4a30-bd5a-a78a1055597f/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 21:50:19,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:50:19,457 INFO L264 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 21:50:19,458 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:50:19,467 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 21:50:19,467 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:50:19,480 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 21:50:19,480 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [698933419] [2019-12-07 21:50:19,480 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:50:19,480 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 21:50:19,480 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701700540] [2019-12-07 21:50:19,481 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 21:50:19,481 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:50:19,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 21:50:19,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 21:50:19,481 INFO L87 Difference]: Start difference. First operand 198 states and 270 transitions. Second operand 6 states. [2019-12-07 21:50:19,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:50:19,521 INFO L93 Difference]: Finished difference Result 530 states and 725 transitions. [2019-12-07 21:50:19,521 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 21:50:19,522 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2019-12-07 21:50:19,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:50:19,523 INFO L225 Difference]: With dead ends: 530 [2019-12-07 21:50:19,523 INFO L226 Difference]: Without dead ends: 338 [2019-12-07 21:50:19,524 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 83 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 21:50:19,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2019-12-07 21:50:19,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 177. [2019-12-07 21:50:19,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2019-12-07 21:50:19,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 238 transitions. [2019-12-07 21:50:19,536 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 238 transitions. Word has length 44 [2019-12-07 21:50:19,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:50:19,537 INFO L462 AbstractCegarLoop]: Abstraction has 177 states and 238 transitions. [2019-12-07 21:50:19,537 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 21:50:19,537 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 238 transitions. [2019-12-07 21:50:19,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-12-07 21:50:19,537 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:50:19,538 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 21:50:19,738 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2019-12-07 21:50:19,738 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:50:19,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:50:19,739 INFO L82 PathProgramCache]: Analyzing trace with hash 61594744, now seen corresponding path program 1 times [2019-12-07 21:50:19,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:50:19,740 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [349437906] [2019-12-07 21:50:19,740 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60153aa6-3ffe-4a30-bd5a-a78a1055597f/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 21:50:19,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:50:19,849 INFO L264 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 21:50:19,851 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:50:19,875 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 21:50:19,875 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:50:19,915 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 21:50:19,916 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [349437906] [2019-12-07 21:50:19,916 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [732437379] [2019-12-07 21:50:19,916 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60153aa6-3ffe-4a30-bd5a-a78a1055597f/bin/utaipan/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 21:50:20,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:50:20,017 INFO L264 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 21:50:20,018 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:50:20,022 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 21:50:20,022 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:50:20,027 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 21:50:20,027 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859079098] [2019-12-07 21:50:20,027 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60153aa6-3ffe-4a30-bd5a-a78a1055597f/bin/utaipan/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 21:50:20,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:50:20,120 INFO L264 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 21:50:20,122 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:50:20,130 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 21:50:20,130 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:50:20,136 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 21:50:20,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2019-12-07 21:50:20,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 9 [2019-12-07 21:50:20,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866328190] [2019-12-07 21:50:20,136 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 21:50:20,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:50:20,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 21:50:20,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-12-07 21:50:20,137 INFO L87 Difference]: Start difference. First operand 177 states and 238 transitions. Second operand 10 states. [2019-12-07 21:50:20,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:50:20,712 INFO L93 Difference]: Finished difference Result 1044 states and 1457 transitions. [2019-12-07 21:50:20,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-12-07 21:50:20,713 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 45 [2019-12-07 21:50:20,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:50:20,716 INFO L225 Difference]: With dead ends: 1044 [2019-12-07 21:50:20,717 INFO L226 Difference]: Without dead ends: 914 [2019-12-07 21:50:20,717 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 255 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2019-12-07 21:50:20,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2019-12-07 21:50:20,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 294. [2019-12-07 21:50:20,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2019-12-07 21:50:20,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 402 transitions. [2019-12-07 21:50:20,741 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 402 transitions. Word has length 45 [2019-12-07 21:50:20,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:50:20,741 INFO L462 AbstractCegarLoop]: Abstraction has 294 states and 402 transitions. [2019-12-07 21:50:20,741 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 21:50:20,741 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 402 transitions. [2019-12-07 21:50:20,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-12-07 21:50:20,742 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:50:20,742 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 21:50:21,342 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 mathsat -unsat_core_generation=3 [2019-12-07 21:50:21,343 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:50:21,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:50:21,344 INFO L82 PathProgramCache]: Analyzing trace with hash -594503994, now seen corresponding path program 2 times [2019-12-07 21:50:21,344 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:50:21,344 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1376196867] [2019-12-07 21:50:21,344 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60153aa6-3ffe-4a30-bd5a-a78a1055597f/bin/utaipan/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2019-12-07 21:50:22,030 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 21:50:22,030 INFO L250 tOrderPrioritization]: Conjunction of SSA is sat [2019-12-07 21:50:22,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 21:50:22,680 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 21:50:22,680 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 21:50:22,880 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 mathsat -unsat_core_generation=3 [2019-12-07 21:50:22,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 09:50:22 BoogieIcfgContainer [2019-12-07 21:50:22,968 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 21:50:22,969 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 21:50:22,969 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 21:50:22,969 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 21:50:22,969 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:50:15" (3/4) ... [2019-12-07 21:50:22,971 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 21:50:23,044 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_60153aa6-3ffe-4a30-bd5a-a78a1055597f/bin/utaipan/witness.graphml [2019-12-07 21:50:23,044 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 21:50:23,045 INFO L168 Benchmark]: Toolchain (without parser) took 8185.73 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 305.7 MB). Free memory was 947.0 MB in the beginning and 1.2 GB in the end (delta: -231.1 MB). Peak memory consumption was 74.5 MB. Max. memory is 11.5 GB. [2019-12-07 21:50:23,045 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 21:50:23,045 INFO L168 Benchmark]: CACSL2BoogieTranslator took 369.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -147.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-12-07 21:50:23,046 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.41 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 21:50:23,046 INFO L168 Benchmark]: Boogie Preprocessor took 28.42 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-07 21:50:23,046 INFO L168 Benchmark]: RCFGBuilder took 515.12 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 71.4 MB). Peak memory consumption was 71.4 MB. Max. memory is 11.5 GB. [2019-12-07 21:50:23,046 INFO L168 Benchmark]: TraceAbstraction took 7148.70 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 185.1 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -188.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 21:50:23,046 INFO L168 Benchmark]: Witness Printer took 75.17 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. [2019-12-07 21:50:23,047 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 369.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -147.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.41 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.42 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 515.12 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 71.4 MB). Peak memory consumption was 71.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7148.70 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 185.1 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -188.4 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 75.17 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 437]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L123] int pumpRunning = 0; [L124] int systemActive = 1; [L299] int cleanupTimeShifts = 4; [L611] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L809] int waterLevel = 1; [L810] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L375] int retValue_acc ; [L376] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L424] int retValue_acc ; [L427] retValue_acc = 1 [L428] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L382] tmp = valid_product() [L384] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L47] int splverifierCounter ; [L48] int tmp ; [L49] int tmp___0 ; [L50] int tmp___1 ; [L51] int tmp___2 ; [L54] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L56] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L58] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L64] tmp = __VERIFIER_nondet_int() [L66] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L827] COND TRUE waterLevel < 2 [L828] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L74] tmp___0 = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND TRUE \read(tmp___2) [L294] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L131] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L138] COND TRUE \read(systemActive) [L160] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L163] COND TRUE ! pumpRunning [L257] int retValue_acc ; [L258] int tmp ; [L259] int tmp___0 ; [L889] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L892] COND FALSE !(waterLevel < 2) [L896] retValue_acc = 0 [L897] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L263] tmp = isHighWaterSensorDry() [L265] COND FALSE !(\read(tmp)) [L268] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L270] retValue_acc = tmp___0 [L271] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L165] tmp = isHighWaterLevel() [L167] COND TRUE \read(tmp) [L188] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L904] int tmp ; [L905] int tmp___0 ; [L880] int retValue_acc ; [L883] retValue_acc = waterLevel [L884] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L909] tmp = getWaterLevel() [L911] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L56] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L58] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L64] tmp = __VERIFIER_nondet_int() [L66] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L74] tmp___0 = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND TRUE \read(tmp___2) [L294] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L131] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L815] COND TRUE waterLevel > 0 [L816] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L138] COND TRUE \read(systemActive) [L160] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L163] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L904] int tmp ; [L905] int tmp___0 ; [L880] int retValue_acc ; [L883] retValue_acc = waterLevel [L884] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L909] tmp = getWaterLevel() [L911] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L56] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L58] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L64] tmp = __VERIFIER_nondet_int() [L66] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L74] tmp___0 = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND TRUE \read(tmp___2) [L294] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L131] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L815] COND TRUE waterLevel > 0 [L816] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L138] COND TRUE \read(systemActive) [L160] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L163] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L904] int tmp ; [L905] int tmp___0 ; [L880] int retValue_acc ; [L883] retValue_acc = waterLevel [L884] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L909] tmp = getWaterLevel() [L911] COND TRUE tmp == 0 [L212] int retValue_acc ; [L215] retValue_acc = pumpRunning [L216] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L913] tmp___0 = isPumpRunning() [L915] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L437] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 80 locations, 3 error locations. Result: UNSAFE, OverallTime: 7.0s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 722 SDtfs, 1800 SDslu, 1807 SDs, 0 SdLazy, 325 SolverSat, 86 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 831 GetRequests, 764 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=294occurred 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: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 1490 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 468 NumberOfCodeBlocks, 468 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 792 ConstructedInterpolants, 0 QuantifiedInterpolants, 73202 SizeOfPredicates, 27 NumberOfNonLiveVariables, 2389 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 24 InterpolantComputations, 16 PerfectInterpolantSequences, 136/200 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...