./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product52.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_dfbb51df-b429-4dbe-bcd0-08eb00f78b35/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_dfbb51df-b429-4dbe-bcd0-08eb00f78b35/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_dfbb51df-b429-4dbe-bcd0-08eb00f78b35/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_dfbb51df-b429-4dbe-bcd0-08eb00f78b35/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product52.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_dfbb51df-b429-4dbe-bcd0-08eb00f78b35/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_dfbb51df-b429-4dbe-bcd0-08eb00f78b35/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 406c0cc89d56bc86617076fb4c755244f0ec13e7 ...................................................................................................................................... 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_dfbb51df-b429-4dbe-bcd0-08eb00f78b35/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_dfbb51df-b429-4dbe-bcd0-08eb00f78b35/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_dfbb51df-b429-4dbe-bcd0-08eb00f78b35/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_dfbb51df-b429-4dbe-bcd0-08eb00f78b35/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product52.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_dfbb51df-b429-4dbe-bcd0-08eb00f78b35/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_dfbb51df-b429-4dbe-bcd0-08eb00f78b35/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 406c0cc89d56bc86617076fb4c755244f0ec13e7 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 11:40:24,714 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 11:40:24,715 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 11:40:24,722 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 11:40:24,723 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:40:24,723 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:40:24,724 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:40:24,726 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:40:24,727 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:40:24,727 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:40:24,728 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:40:24,729 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:40:24,729 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:40:24,730 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:40:24,730 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:40:24,731 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:40:24,732 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:40:24,732 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:40:24,734 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:40:24,735 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:40:24,736 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:40:24,737 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:40:24,738 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:40:24,738 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:40:24,740 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:40:24,740 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:40:24,740 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:40:24,741 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:40:24,741 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:40:24,741 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:40:24,742 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:40:24,742 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:40:24,742 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:40:24,743 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:40:24,743 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:40:24,744 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:40:24,744 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:40:24,744 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:40:24,744 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:40:24,745 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:40:24,745 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:40:24,746 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_dfbb51df-b429-4dbe-bcd0-08eb00f78b35/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 11:40:24,756 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:40:24,756 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:40:24,756 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 11:40:24,757 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 11:40:24,757 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 11:40:24,757 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 11:40:24,757 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 11:40:24,757 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 11:40:24,757 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 11:40:24,757 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 11:40:24,757 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 11:40:24,758 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 11:40:24,758 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 11:40:24,758 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 11:40:24,758 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 11:40:24,758 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:40:24,759 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 11:40:24,759 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 11:40:24,759 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 11:40:24,759 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:40:24,759 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 11:40:24,759 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 11:40:24,759 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 11:40:24,759 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 11:40:24,759 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 11:40:24,760 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 11:40:24,760 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:40:24,760 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 11:40:24,760 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:40:24,760 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 11:40:24,760 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 11:40:24,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:40:24,760 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:40:24,760 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 11:40:24,761 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 11:40:24,761 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 11:40:24,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 11:40:24,761 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 11:40:24,761 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:40:24,761 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 11:40:24,761 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_dfbb51df-b429-4dbe-bcd0-08eb00f78b35/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 -> 406c0cc89d56bc86617076fb4c755244f0ec13e7 [2019-12-07 11:40:24,860 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:40:24,870 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:40:24,873 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:40:24,874 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:40:24,874 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:40:24,875 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_dfbb51df-b429-4dbe-bcd0-08eb00f78b35/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product52.cil.c [2019-12-07 11:40:24,920 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dfbb51df-b429-4dbe-bcd0-08eb00f78b35/bin/utaipan/data/ebeefaa2c/6c1f59ecc37149249e8872194fa8d55e/FLAG12970e54f [2019-12-07 11:40:25,279 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:40:25,279 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_dfbb51df-b429-4dbe-bcd0-08eb00f78b35/sv-benchmarks/c/product-lines/minepump_spec3_product52.cil.c [2019-12-07 11:40:25,288 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dfbb51df-b429-4dbe-bcd0-08eb00f78b35/bin/utaipan/data/ebeefaa2c/6c1f59ecc37149249e8872194fa8d55e/FLAG12970e54f [2019-12-07 11:40:25,297 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_dfbb51df-b429-4dbe-bcd0-08eb00f78b35/bin/utaipan/data/ebeefaa2c/6c1f59ecc37149249e8872194fa8d55e [2019-12-07 11:40:25,299 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:40:25,300 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 11:40:25,301 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:40:25,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:40:25,303 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:40:25,303 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:40:25" (1/1) ... [2019-12-07 11:40:25,305 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5687e9a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:40:25, skipping insertion in model container [2019-12-07 11:40:25,305 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:40:25" (1/1) ... [2019-12-07 11:40:25,310 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:40:25,337 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:40:25,546 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:40:25,554 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 11:40:25,555 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@16755ec0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:40:25, skipping insertion in model container [2019-12-07 11:40:25,555 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:40:25,555 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 11:40:25,557 INFO L168 Benchmark]: Toolchain (without parser) took 256.66 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -158.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 11:40:25,558 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:40:25,558 INFO L168 Benchmark]: CACSL2BoogieTranslator took 254.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 935.4 MB in the beginning and 1.1 GB in the end (delta: -164.2 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-12-07 11:40:25,559 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 254.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 935.4 MB in the beginning and 1.1 GB in the end (delta: -164.2 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 215]: 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 11:40:26,734 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 11:40:26,736 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 11:40:26,743 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 11:40:26,744 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:40:26,744 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:40:26,745 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:40:26,747 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:40:26,748 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:40:26,748 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:40:26,749 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:40:26,750 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:40:26,750 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:40:26,751 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:40:26,751 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:40:26,752 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:40:26,753 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:40:26,753 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:40:26,755 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:40:26,756 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:40:26,757 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:40:26,758 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:40:26,759 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:40:26,760 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:40:26,762 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:40:26,762 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:40:26,762 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:40:26,763 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:40:26,763 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:40:26,763 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:40:26,764 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:40:26,764 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:40:26,765 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:40:26,765 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:40:26,766 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:40:26,766 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:40:26,766 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:40:26,767 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:40:26,767 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:40:26,767 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:40:26,768 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:40:26,768 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_dfbb51df-b429-4dbe-bcd0-08eb00f78b35/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 11:40:26,778 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:40:26,779 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:40:26,779 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 11:40:26,779 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 11:40:26,780 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 11:40:26,780 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 11:40:26,780 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 11:40:26,780 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 11:40:26,780 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 11:40:26,781 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:40:26,781 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 11:40:26,781 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 11:40:26,781 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:40:26,781 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 11:40:26,781 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 11:40:26,781 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 11:40:26,781 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 11:40:26,782 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 11:40:26,782 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 11:40:26,782 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 11:40:26,782 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 11:40:26,782 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:40:26,782 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 11:40:26,782 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:40:26,783 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 11:40:26,783 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 11:40:26,783 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 11:40:26,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:40:26,783 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:40:26,783 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 11:40:26,783 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 11:40:26,783 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 11:40:26,784 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 11:40:26,784 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 11:40:26,784 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:40:26,784 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 11:40:26,784 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_dfbb51df-b429-4dbe-bcd0-08eb00f78b35/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 -> 406c0cc89d56bc86617076fb4c755244f0ec13e7 [2019-12-07 11:40:26,959 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:40:26,967 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:40:26,969 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:40:26,970 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:40:26,970 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:40:26,970 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_dfbb51df-b429-4dbe-bcd0-08eb00f78b35/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product52.cil.c [2019-12-07 11:40:27,009 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dfbb51df-b429-4dbe-bcd0-08eb00f78b35/bin/utaipan/data/3a925fb45/237b8f121c9b4faeb3e83add5366ee40/FLAG583d3d8d8 [2019-12-07 11:40:27,437 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:40:27,438 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_dfbb51df-b429-4dbe-bcd0-08eb00f78b35/sv-benchmarks/c/product-lines/minepump_spec3_product52.cil.c [2019-12-07 11:40:27,445 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dfbb51df-b429-4dbe-bcd0-08eb00f78b35/bin/utaipan/data/3a925fb45/237b8f121c9b4faeb3e83add5366ee40/FLAG583d3d8d8 [2019-12-07 11:40:27,791 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_dfbb51df-b429-4dbe-bcd0-08eb00f78b35/bin/utaipan/data/3a925fb45/237b8f121c9b4faeb3e83add5366ee40 [2019-12-07 11:40:27,794 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:40:27,794 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 11:40:27,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:40:27,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:40:27,797 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:40:27,798 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:40:27" (1/1) ... [2019-12-07 11:40:27,799 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 11:40:27, skipping insertion in model container [2019-12-07 11:40:27,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:40:27" (1/1) ... [2019-12-07 11:40:27,804 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:40:27,838 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:40:28,095 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:40:28,108 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 11:40:28,115 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:40:28,160 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:40:28,164 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 11:40:28,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:40:28,232 INFO L208 MainTranslator]: Completed translation [2019-12-07 11:40:28,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:40:28 WrapperNode [2019-12-07 11:40:28,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:40:28,233 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 11:40:28,233 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 11:40:28,233 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 11:40:28,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:40:28" (1/1) ... [2019-12-07 11:40:28,252 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:40:28" (1/1) ... [2019-12-07 11:40:28,279 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 11:40:28,280 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 11:40:28,280 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 11:40:28,280 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 11:40:28,286 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:40:28" (1/1) ... [2019-12-07 11:40:28,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:40:28" (1/1) ... [2019-12-07 11:40:28,291 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:40:28" (1/1) ... [2019-12-07 11:40:28,291 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:40:28" (1/1) ... [2019-12-07 11:40:28,303 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:40:28" (1/1) ... [2019-12-07 11:40:28,309 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:40:28" (1/1) ... [2019-12-07 11:40:28,312 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:40:28" (1/1) ... [2019-12-07 11:40:28,315 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 11:40:28,316 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 11:40:28,316 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 11:40:28,316 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 11:40:28,317 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:40:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dfbb51df-b429-4dbe-bcd0-08eb00f78b35/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 11:40:28,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 11:40:28,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 11:40:28,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 11:40:28,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 11:40:28,928 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 11:40:28,928 INFO L287 CfgBuilder]: Removed 168 assume(true) statements. [2019-12-07 11:40:28,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:40:28 BoogieIcfgContainer [2019-12-07 11:40:28,929 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 11:40:28,930 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 11:40:28,930 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 11:40:28,932 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 11:40:28,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 11:40:27" (1/3) ... [2019-12-07 11:40:28,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58c8c062 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:40:28, skipping insertion in model container [2019-12-07 11:40:28,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:40:28" (2/3) ... [2019-12-07 11:40:28,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58c8c062 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:40:28, skipping insertion in model container [2019-12-07 11:40:28,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:40:28" (3/3) ... [2019-12-07 11:40:28,934 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product52.cil.c [2019-12-07 11:40:28,941 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 11:40:28,946 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 11:40:28,954 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 11:40:28,970 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 11:40:28,971 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 11:40:28,971 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 11:40:28,971 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 11:40:28,971 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 11:40:28,971 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 11:40:28,971 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 11:40:28,971 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 11:40:28,983 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states. [2019-12-07 11:40:28,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 11:40:28,988 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:40:28,988 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:40:28,988 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:40:28,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:40:28,992 INFO L82 PathProgramCache]: Analyzing trace with hash -805334601, now seen corresponding path program 1 times [2019-12-07 11:40:29,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:40:29,001 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1472310710] [2019-12-07 11:40:29,002 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dfbb51df-b429-4dbe-bcd0-08eb00f78b35/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 11:40:29,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:40:29,149 INFO L264 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 11:40:29,153 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:40:29,163 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 11:40:29,163 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:40:29,167 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 11:40:29,167 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1472310710] [2019-12-07 11:40:29,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:40:29,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 11:40:29,169 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041100108] [2019-12-07 11:40:29,172 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 11:40:29,172 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:40:29,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 11:40:29,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 11:40:29,182 INFO L87 Difference]: Start difference. First operand 125 states. Second operand 2 states. [2019-12-07 11:40:29,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:40:29,204 INFO L93 Difference]: Finished difference Result 244 states and 371 transitions. [2019-12-07 11:40:29,204 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 11:40:29,205 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-12-07 11:40:29,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:40:29,214 INFO L225 Difference]: With dead ends: 244 [2019-12-07 11:40:29,214 INFO L226 Difference]: Without dead ends: 121 [2019-12-07 11:40:29,216 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 11:40:29,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-12-07 11:40:29,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2019-12-07 11:40:29,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-12-07 11:40:29,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 177 transitions. [2019-12-07 11:40:29,247 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 177 transitions. Word has length 18 [2019-12-07 11:40:29,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:40:29,248 INFO L462 AbstractCegarLoop]: Abstraction has 121 states and 177 transitions. [2019-12-07 11:40:29,248 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 11:40:29,248 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 177 transitions. [2019-12-07 11:40:29,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 11:40:29,249 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:40:29,249 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:40:29,450 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 11:40:29,450 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:40:29,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:40:29,451 INFO L82 PathProgramCache]: Analyzing trace with hash -1716365354, now seen corresponding path program 1 times [2019-12-07 11:40:29,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:40:29,452 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [284387376] [2019-12-07 11:40:29,452 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dfbb51df-b429-4dbe-bcd0-08eb00f78b35/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 11:40:29,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:40:29,657 INFO L264 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 11:40:29,659 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:40:29,675 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 11:40:29,676 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:40:29,684 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 11:40:29,684 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [284387376] [2019-12-07 11:40:29,685 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:40:29,685 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 11:40:29,685 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53138568] [2019-12-07 11:40:29,687 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 11:40:29,687 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:40:29,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 11:40:29,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:40:29,688 INFO L87 Difference]: Start difference. First operand 121 states and 177 transitions. Second operand 4 states. [2019-12-07 11:40:29,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:40:29,701 INFO L93 Difference]: Finished difference Result 121 states and 177 transitions. [2019-12-07 11:40:29,702 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 11:40:29,702 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2019-12-07 11:40:29,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:40:29,703 INFO L225 Difference]: With dead ends: 121 [2019-12-07 11:40:29,703 INFO L226 Difference]: Without dead ends: 51 [2019-12-07 11:40:29,704 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:40:29,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-12-07 11:40:29,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2019-12-07 11:40:29,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-12-07 11:40:29,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 74 transitions. [2019-12-07 11:40:29,708 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 74 transitions. Word has length 19 [2019-12-07 11:40:29,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:40:29,709 INFO L462 AbstractCegarLoop]: Abstraction has 51 states and 74 transitions. [2019-12-07 11:40:29,709 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 11:40:29,709 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 74 transitions. [2019-12-07 11:40:29,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 11:40:29,710 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:40:29,710 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:40:29,910 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 11:40:29,911 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:40:29,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:40:29,912 INFO L82 PathProgramCache]: Analyzing trace with hash -882616339, now seen corresponding path program 1 times [2019-12-07 11:40:29,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:40:29,914 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1182113964] [2019-12-07 11:40:29,915 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dfbb51df-b429-4dbe-bcd0-08eb00f78b35/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 11:40:30,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:40:30,053 INFO L264 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 11:40:30,055 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:40:30,061 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 11:40:30,062 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:40:30,068 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 11:40:30,068 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1182113964] [2019-12-07 11:40:30,068 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:40:30,068 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 11:40:30,068 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603666768] [2019-12-07 11:40:30,069 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 11:40:30,069 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:40:30,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 11:40:30,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:40:30,069 INFO L87 Difference]: Start difference. First operand 51 states and 74 transitions. Second operand 4 states. [2019-12-07 11:40:30,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:40:30,131 INFO L93 Difference]: Finished difference Result 166 states and 247 transitions. [2019-12-07 11:40:30,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 11:40:30,132 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-12-07 11:40:30,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:40:30,133 INFO L225 Difference]: With dead ends: 166 [2019-12-07 11:40:30,133 INFO L226 Difference]: Without dead ends: 121 [2019-12-07 11:40:30,134 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:40:30,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-12-07 11:40:30,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 72. [2019-12-07 11:40:30,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-12-07 11:40:30,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 106 transitions. [2019-12-07 11:40:30,146 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 106 transitions. Word has length 24 [2019-12-07 11:40:30,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:40:30,146 INFO L462 AbstractCegarLoop]: Abstraction has 72 states and 106 transitions. [2019-12-07 11:40:30,146 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 11:40:30,146 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 106 transitions. [2019-12-07 11:40:30,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-07 11:40:30,147 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:40:30,147 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:40:30,348 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 11:40:30,349 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:40:30,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:40:30,349 INFO L82 PathProgramCache]: Analyzing trace with hash -1572520497, now seen corresponding path program 1 times [2019-12-07 11:40:30,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:40:30,350 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1973159339] [2019-12-07 11:40:30,351 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dfbb51df-b429-4dbe-bcd0-08eb00f78b35/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 11:40:30,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:40:30,475 INFO L264 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 11:40:30,476 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:40:30,482 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 11:40:30,482 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:40:30,484 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 11:40:30,484 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1973159339] [2019-12-07 11:40:30,484 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:40:30,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 11:40:30,485 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069082437] [2019-12-07 11:40:30,485 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 11:40:30,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:40:30,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 11:40:30,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 11:40:30,485 INFO L87 Difference]: Start difference. First operand 72 states and 106 transitions. Second operand 3 states. [2019-12-07 11:40:30,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:40:30,539 INFO L93 Difference]: Finished difference Result 161 states and 239 transitions. [2019-12-07 11:40:30,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 11:40:30,540 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-12-07 11:40:30,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:40:30,540 INFO L225 Difference]: With dead ends: 161 [2019-12-07 11:40:30,540 INFO L226 Difference]: Without dead ends: 95 [2019-12-07 11:40:30,541 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 11:40:30,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-12-07 11:40:30,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2019-12-07 11:40:30,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2019-12-07 11:40:30,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 133 transitions. [2019-12-07 11:40:30,549 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 133 transitions. Word has length 26 [2019-12-07 11:40:30,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:40:30,549 INFO L462 AbstractCegarLoop]: Abstraction has 93 states and 133 transitions. [2019-12-07 11:40:30,550 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 11:40:30,550 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 133 transitions. [2019-12-07 11:40:30,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-07 11:40:30,550 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:40:30,550 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:40:30,751 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 11:40:30,752 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:40:30,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:40:30,753 INFO L82 PathProgramCache]: Analyzing trace with hash -1445956926, now seen corresponding path program 1 times [2019-12-07 11:40:30,754 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:40:30,754 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1843022251] [2019-12-07 11:40:30,754 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dfbb51df-b429-4dbe-bcd0-08eb00f78b35/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 11:40:30,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:40:30,871 INFO L264 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 11:40:30,872 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:40:30,884 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 11:40:30,884 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:40:30,908 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 11:40:30,908 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1843022251] [2019-12-07 11:40:30,908 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:40:30,908 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-12-07 11:40:30,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122873026] [2019-12-07 11:40:30,909 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 11:40:30,909 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:40:30,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 11:40:30,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 11:40:30,909 INFO L87 Difference]: Start difference. First operand 93 states and 133 transitions. Second operand 8 states. [2019-12-07 11:40:31,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:40:31,241 INFO L93 Difference]: Finished difference Result 1012 states and 1490 transitions. [2019-12-07 11:40:31,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-12-07 11:40:31,242 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2019-12-07 11:40:31,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:40:31,246 INFO L225 Difference]: With dead ends: 1012 [2019-12-07 11:40:31,246 INFO L226 Difference]: Without dead ends: 925 [2019-12-07 11:40:31,248 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2019-12-07 11:40:31,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2019-12-07 11:40:31,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 236. [2019-12-07 11:40:31,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2019-12-07 11:40:31,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 333 transitions. [2019-12-07 11:40:31,280 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 333 transitions. Word has length 27 [2019-12-07 11:40:31,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:40:31,280 INFO L462 AbstractCegarLoop]: Abstraction has 236 states and 333 transitions. [2019-12-07 11:40:31,280 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 11:40:31,280 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 333 transitions. [2019-12-07 11:40:31,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-07 11:40:31,282 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:40:31,282 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:40:31,482 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 11:40:31,483 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:40:31,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:40:31,483 INFO L82 PathProgramCache]: Analyzing trace with hash 1148746628, now seen corresponding path program 1 times [2019-12-07 11:40:31,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:40:31,483 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [864440821] [2019-12-07 11:40:31,483 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dfbb51df-b429-4dbe-bcd0-08eb00f78b35/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 11:40:32,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:40:32,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:40:32,754 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 11:40:32,755 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 11:40:32,955 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 11:40:33,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 11:40:33 BoogieIcfgContainer [2019-12-07 11:40:33,027 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 11:40:33,027 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 11:40:33,027 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 11:40:33,027 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 11:40:33,028 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:40:28" (3/4) ... [2019-12-07 11:40:33,029 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 11:40:33,102 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_dfbb51df-b429-4dbe-bcd0-08eb00f78b35/bin/utaipan/witness.graphml [2019-12-07 11:40:33,102 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 11:40:33,104 INFO L168 Benchmark]: Toolchain (without parser) took 5308.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 203.4 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -164.5 MB). Peak memory consumption was 39.0 MB. Max. memory is 11.5 GB. [2019-12-07 11:40:33,104 INFO L168 Benchmark]: CDTParser took 0.13 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 11:40:33,104 INFO L168 Benchmark]: CACSL2BoogieTranslator took 437.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -151.9 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. [2019-12-07 11:40:33,105 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 11:40:33,105 INFO L168 Benchmark]: Boogie Preprocessor took 35.60 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:40:33,105 INFO L168 Benchmark]: RCFGBuilder took 613.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 79.7 MB). Peak memory consumption was 79.7 MB. Max. memory is 11.5 GB. [2019-12-07 11:40:33,106 INFO L168 Benchmark]: TraceAbstraction took 4096.73 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 79.7 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -113.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:40:33,106 INFO L168 Benchmark]: Witness Printer took 75.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.8 MB). Peak memory consumption was 7.8 MB. Max. memory is 11.5 GB. [2019-12-07 11:40:33,108 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 437.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -151.9 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.60 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 613.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 79.7 MB). Peak memory consumption was 79.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4096.73 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 79.7 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -113.7 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 75.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.8 MB). Peak memory consumption was 7.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 853]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L84] int waterLevel = 1; [L85] int methaneLevelCritical = 0; [L356] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L559] int pumpRunning = 0; [L560] int systemActive = 1; [L896] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L969] int retValue_acc ; [L970] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L887] int retValue_acc ; [L890] retValue_acc = 1 [L891] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L976] tmp = valid_product() [L978] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L781] int splverifierCounter ; [L782] int tmp ; [L783] int tmp___0 ; [L784] int tmp___1 ; [L785] int tmp___2 ; [L788] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L790] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L792] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L798] tmp = __VERIFIER_nondet_int() [L800] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L102] COND TRUE waterLevel < 2 [L103] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L808] tmp___0 = __VERIFIER_nondet_int() [L810] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L818] tmp___2 = __VERIFIER_nondet_int() [L820] COND FALSE !(\read(tmp___2)) [L826] tmp___1 = __VERIFIER_nondet_int() [L828] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L759] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L766] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L566] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L573] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L123] int retValue_acc ; [L126] retValue_acc = methaneLevelCritical [L127] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L155] int retValue_acc ; [L158] retValue_acc = waterLevel [L159] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L673] int retValue_acc ; [L676] retValue_acc = pumpRunning [L677] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L853] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 125 locations, 3 error locations. Result: UNSAFE, OverallTime: 3.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 514 SDtfs, 1171 SDslu, 1059 SDs, 0 SdLazy, 196 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 227 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=236occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 740 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 218 ConstructedInterpolants, 0 QuantifiedInterpolants, 10826 SizeOfPredicates, 6 NumberOfNonLiveVariables, 927 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...