./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product63.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_b2dd0ba3-f0c6-46f4-a0c3-65ad8411e70e/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b2dd0ba3-f0c6-46f4-a0c3-65ad8411e70e/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b2dd0ba3-f0c6-46f4-a0c3-65ad8411e70e/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b2dd0ba3-f0c6-46f4-a0c3-65ad8411e70e/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product63.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b2dd0ba3-f0c6-46f4-a0c3-65ad8411e70e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b2dd0ba3-f0c6-46f4-a0c3-65ad8411e70e/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 bc4bd2595a0b7e3cefae13519551d835632d9ce9 ...................................................................................................................................... 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_b2dd0ba3-f0c6-46f4-a0c3-65ad8411e70e/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b2dd0ba3-f0c6-46f4-a0c3-65ad8411e70e/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b2dd0ba3-f0c6-46f4-a0c3-65ad8411e70e/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b2dd0ba3-f0c6-46f4-a0c3-65ad8411e70e/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product63.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b2dd0ba3-f0c6-46f4-a0c3-65ad8411e70e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b2dd0ba3-f0c6-46f4-a0c3-65ad8411e70e/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 bc4bd2595a0b7e3cefae13519551d835632d9ce9 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 19:28:08,602 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 19:28:08,603 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 19:28:08,611 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 19:28:08,611 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 19:28:08,611 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 19:28:08,612 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 19:28:08,614 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 19:28:08,615 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 19:28:08,616 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 19:28:08,616 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 19:28:08,617 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 19:28:08,617 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 19:28:08,618 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 19:28:08,618 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 19:28:08,619 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 19:28:08,620 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 19:28:08,620 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 19:28:08,622 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 19:28:08,623 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 19:28:08,624 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 19:28:08,625 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 19:28:08,625 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 19:28:08,626 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 19:28:08,628 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 19:28:08,628 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 19:28:08,628 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 19:28:08,628 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 19:28:08,629 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 19:28:08,629 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 19:28:08,629 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 19:28:08,630 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 19:28:08,630 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 19:28:08,631 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 19:28:08,631 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 19:28:08,631 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 19:28:08,632 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 19:28:08,632 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 19:28:08,632 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 19:28:08,632 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 19:28:08,633 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 19:28:08,633 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b2dd0ba3-f0c6-46f4-a0c3-65ad8411e70e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 19:28:08,643 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 19:28:08,643 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 19:28:08,644 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 19:28:08,644 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 19:28:08,644 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 19:28:08,644 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 19:28:08,644 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 19:28:08,645 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 19:28:08,645 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 19:28:08,645 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 19:28:08,645 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 19:28:08,645 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 19:28:08,645 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 19:28:08,645 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 19:28:08,645 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 19:28:08,646 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 19:28:08,646 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 19:28:08,646 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 19:28:08,646 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 19:28:08,646 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 19:28:08,647 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 19:28:08,647 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 19:28:08,647 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 19:28:08,647 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 19:28:08,647 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 19:28:08,647 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 19:28:08,647 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 19:28:08,647 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 19:28:08,647 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 19:28:08,648 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 19:28:08,648 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 19:28:08,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 19:28:08,648 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 19:28:08,648 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 19:28:08,648 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 19:28:08,648 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 19:28:08,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 19:28:08,648 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 19:28:08,648 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 19:28:08,649 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 19:28:08,649 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_b2dd0ba3-f0c6-46f4-a0c3-65ad8411e70e/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 -> bc4bd2595a0b7e3cefae13519551d835632d9ce9 [2019-12-07 19:28:08,757 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 19:28:08,765 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 19:28:08,767 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 19:28:08,768 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 19:28:08,768 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 19:28:08,769 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b2dd0ba3-f0c6-46f4-a0c3-65ad8411e70e/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product63.cil.c [2019-12-07 19:28:08,808 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b2dd0ba3-f0c6-46f4-a0c3-65ad8411e70e/bin/utaipan/data/2da5f34fe/62a7ebe2474b498297847adba0801192/FLAG40075a3a3 [2019-12-07 19:28:09,169 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 19:28:09,169 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b2dd0ba3-f0c6-46f4-a0c3-65ad8411e70e/sv-benchmarks/c/product-lines/minepump_spec3_product63.cil.c [2019-12-07 19:28:09,179 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b2dd0ba3-f0c6-46f4-a0c3-65ad8411e70e/bin/utaipan/data/2da5f34fe/62a7ebe2474b498297847adba0801192/FLAG40075a3a3 [2019-12-07 19:28:09,187 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b2dd0ba3-f0c6-46f4-a0c3-65ad8411e70e/bin/utaipan/data/2da5f34fe/62a7ebe2474b498297847adba0801192 [2019-12-07 19:28:09,189 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 19:28:09,190 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 19:28:09,191 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 19:28:09,191 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 19:28:09,193 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 19:28:09,194 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:28:09" (1/1) ... [2019-12-07 19:28:09,195 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7762f741 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:28:09, skipping insertion in model container [2019-12-07 19:28:09,196 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:28:09" (1/1) ... [2019-12-07 19:28:09,201 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 19:28:09,237 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 19:28:09,459 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:28:09,468 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 19:28:09,468 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@542d7c26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:28:09, skipping insertion in model container [2019-12-07 19:28:09,469 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 19:28:09,469 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 19:28:09,471 INFO L168 Benchmark]: Toolchain (without parser) took 279.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.6 MB). Free memory was 938.7 MB in the beginning and 1.1 GB in the end (delta: -159.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-07 19:28:09,471 INFO L168 Benchmark]: CDTParser took 0.16 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 19:28:09,472 INFO L168 Benchmark]: CACSL2BoogieTranslator took 278.04 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.6 MB). Free memory was 933.3 MB in the beginning and 1.1 GB in the end (delta: -164.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-12-07 19:28:09,473 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 278.04 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.6 MB). Free memory was 933.3 MB in the beginning and 1.1 GB in the end (delta: -164.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 686]: 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 19:28:10,654 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 19:28:10,656 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 19:28:10,664 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 19:28:10,664 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 19:28:10,665 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 19:28:10,666 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 19:28:10,668 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 19:28:10,670 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 19:28:10,670 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 19:28:10,671 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 19:28:10,672 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 19:28:10,672 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 19:28:10,673 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 19:28:10,673 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 19:28:10,674 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 19:28:10,675 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 19:28:10,676 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 19:28:10,678 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 19:28:10,679 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 19:28:10,681 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 19:28:10,682 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 19:28:10,683 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 19:28:10,684 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 19:28:10,686 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 19:28:10,686 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 19:28:10,686 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 19:28:10,687 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 19:28:10,687 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 19:28:10,688 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 19:28:10,688 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 19:28:10,689 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 19:28:10,689 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 19:28:10,690 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 19:28:10,690 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 19:28:10,691 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 19:28:10,691 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 19:28:10,691 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 19:28:10,692 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 19:28:10,692 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 19:28:10,693 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 19:28:10,693 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b2dd0ba3-f0c6-46f4-a0c3-65ad8411e70e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 19:28:10,704 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 19:28:10,704 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 19:28:10,705 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 19:28:10,705 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 19:28:10,705 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 19:28:10,705 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 19:28:10,705 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 19:28:10,705 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 19:28:10,705 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 19:28:10,706 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 19:28:10,706 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 19:28:10,706 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 19:28:10,707 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 19:28:10,707 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 19:28:10,707 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 19:28:10,707 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 19:28:10,707 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 19:28:10,707 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 19:28:10,707 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 19:28:10,708 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 19:28:10,708 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 19:28:10,708 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 19:28:10,708 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 19:28:10,708 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 19:28:10,709 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 19:28:10,709 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 19:28:10,709 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 19:28:10,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 19:28:10,709 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 19:28:10,709 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 19:28:10,709 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 19:28:10,710 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 19:28:10,710 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 19:28:10,710 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 19:28:10,710 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 19:28:10,710 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 19:28:10,710 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_b2dd0ba3-f0c6-46f4-a0c3-65ad8411e70e/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 -> bc4bd2595a0b7e3cefae13519551d835632d9ce9 [2019-12-07 19:28:10,884 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 19:28:10,892 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 19:28:10,894 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 19:28:10,895 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 19:28:10,896 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 19:28:10,896 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b2dd0ba3-f0c6-46f4-a0c3-65ad8411e70e/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product63.cil.c [2019-12-07 19:28:10,934 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b2dd0ba3-f0c6-46f4-a0c3-65ad8411e70e/bin/utaipan/data/be7a39170/d7cc54ccf9f6434aaf45689d9e6ad580/FLAGdf0500f94 [2019-12-07 19:28:11,434 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 19:28:11,434 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b2dd0ba3-f0c6-46f4-a0c3-65ad8411e70e/sv-benchmarks/c/product-lines/minepump_spec3_product63.cil.c [2019-12-07 19:28:11,444 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b2dd0ba3-f0c6-46f4-a0c3-65ad8411e70e/bin/utaipan/data/be7a39170/d7cc54ccf9f6434aaf45689d9e6ad580/FLAGdf0500f94 [2019-12-07 19:28:11,916 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b2dd0ba3-f0c6-46f4-a0c3-65ad8411e70e/bin/utaipan/data/be7a39170/d7cc54ccf9f6434aaf45689d9e6ad580 [2019-12-07 19:28:11,918 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 19:28:11,919 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 19:28:11,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 19:28:11,920 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 19:28:11,922 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 19:28:11,922 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:28:11" (1/1) ... [2019-12-07 19:28:11,924 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7afbba0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:28:11, skipping insertion in model container [2019-12-07 19:28:11,924 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:28:11" (1/1) ... [2019-12-07 19:28:11,928 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 19:28:11,956 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 19:28:12,187 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:28:12,200 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 19:28:12,206 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 19:28:12,265 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:28:12,269 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 19:28:12,309 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:28:12,336 INFO L208 MainTranslator]: Completed translation [2019-12-07 19:28:12,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:28:12 WrapperNode [2019-12-07 19:28:12,337 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 19:28:12,337 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 19:28:12,337 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 19:28:12,337 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 19:28:12,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:28:12" (1/1) ... [2019-12-07 19:28:12,357 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:28:12" (1/1) ... [2019-12-07 19:28:12,393 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 19:28:12,393 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 19:28:12,393 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 19:28:12,393 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 19:28:12,399 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:28:12" (1/1) ... [2019-12-07 19:28:12,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:28:12" (1/1) ... [2019-12-07 19:28:12,406 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:28:12" (1/1) ... [2019-12-07 19:28:12,406 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:28:12" (1/1) ... [2019-12-07 19:28:12,422 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:28:12" (1/1) ... [2019-12-07 19:28:12,431 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:28:12" (1/1) ... [2019-12-07 19:28:12,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:28:12" (1/1) ... [2019-12-07 19:28:12,440 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 19:28:12,440 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 19:28:12,440 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 19:28:12,440 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 19:28:12,441 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:28:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b2dd0ba3-f0c6-46f4-a0c3-65ad8411e70e/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 19:28:12,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 19:28:12,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 19:28:12,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 19:28:12,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 19:28:13,210 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 19:28:13,211 INFO L287 CfgBuilder]: Removed 358 assume(true) statements. [2019-12-07 19:28:13,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:28:13 BoogieIcfgContainer [2019-12-07 19:28:13,212 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 19:28:13,212 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 19:28:13,212 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 19:28:13,214 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 19:28:13,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 07:28:11" (1/3) ... [2019-12-07 19:28:13,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c985d43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 07:28:13, skipping insertion in model container [2019-12-07 19:28:13,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:28:12" (2/3) ... [2019-12-07 19:28:13,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c985d43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 07:28:13, skipping insertion in model container [2019-12-07 19:28:13,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:28:13" (3/3) ... [2019-12-07 19:28:13,217 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product63.cil.c [2019-12-07 19:28:13,224 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 19:28:13,229 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 19:28:13,237 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 19:28:13,254 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 19:28:13,254 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 19:28:13,254 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 19:28:13,254 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 19:28:13,254 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 19:28:13,254 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 19:28:13,255 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 19:28:13,255 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 19:28:13,269 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states. [2019-12-07 19:28:13,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 19:28:13,274 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:28:13,274 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 19:28:13,275 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:28:13,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:28:13,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1810150439, now seen corresponding path program 1 times [2019-12-07 19:28:13,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:28:13,287 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [742105408] [2019-12-07 19:28:13,287 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b2dd0ba3-f0c6-46f4-a0c3-65ad8411e70e/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 19:28:13,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:28:13,423 INFO L264 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 19:28:13,427 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:28:13,437 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 19:28:13,438 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:28:13,441 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 19:28:13,442 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [742105408] [2019-12-07 19:28:13,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:28:13,443 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 19:28:13,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038821065] [2019-12-07 19:28:13,447 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 19:28:13,448 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:28:13,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 19:28:13,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 19:28:13,462 INFO L87 Difference]: Start difference. First operand 233 states. Second operand 2 states. [2019-12-07 19:28:13,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:28:13,497 INFO L93 Difference]: Finished difference Result 460 states and 689 transitions. [2019-12-07 19:28:13,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 19:28:13,498 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-12-07 19:28:13,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:28:13,512 INFO L225 Difference]: With dead ends: 460 [2019-12-07 19:28:13,512 INFO L226 Difference]: Without dead ends: 229 [2019-12-07 19:28:13,516 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 19:28:13,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2019-12-07 19:28:13,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2019-12-07 19:28:13,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2019-12-07 19:28:13,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 336 transitions. [2019-12-07 19:28:13,563 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 336 transitions. Word has length 18 [2019-12-07 19:28:13,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:28:13,563 INFO L462 AbstractCegarLoop]: Abstraction has 229 states and 336 transitions. [2019-12-07 19:28:13,563 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 19:28:13,563 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 336 transitions. [2019-12-07 19:28:13,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 19:28:13,564 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:28:13,565 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 19:28:13,765 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 19:28:13,766 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:28:13,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:28:13,767 INFO L82 PathProgramCache]: Analyzing trace with hash -1201076285, now seen corresponding path program 1 times [2019-12-07 19:28:13,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:28:13,770 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [609058506] [2019-12-07 19:28:13,770 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b2dd0ba3-f0c6-46f4-a0c3-65ad8411e70e/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 19:28:13,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:28:13,995 INFO L264 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 19:28:13,997 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:28:14,011 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 19:28:14,012 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:28:14,022 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 19:28:14,022 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [609058506] [2019-12-07 19:28:14,022 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:28:14,023 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 19:28:14,023 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680310790] [2019-12-07 19:28:14,024 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 19:28:14,024 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:28:14,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 19:28:14,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 19:28:14,025 INFO L87 Difference]: Start difference. First operand 229 states and 336 transitions. Second operand 4 states. [2019-12-07 19:28:14,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:28:14,041 INFO L93 Difference]: Finished difference Result 229 states and 336 transitions. [2019-12-07 19:28:14,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 19:28:14,042 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2019-12-07 19:28:14,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:28:14,043 INFO L225 Difference]: With dead ends: 229 [2019-12-07 19:28:14,044 INFO L226 Difference]: Without dead ends: 87 [2019-12-07 19:28:14,045 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 19:28:14,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2019-12-07 19:28:14,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2019-12-07 19:28:14,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-12-07 19:28:14,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 127 transitions. [2019-12-07 19:28:14,054 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 127 transitions. Word has length 19 [2019-12-07 19:28:14,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:28:14,054 INFO L462 AbstractCegarLoop]: Abstraction has 87 states and 127 transitions. [2019-12-07 19:28:14,054 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 19:28:14,055 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 127 transitions. [2019-12-07 19:28:14,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 19:28:14,056 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:28:14,056 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 19:28:14,257 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 19:28:14,257 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:28:14,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:28:14,258 INFO L82 PathProgramCache]: Analyzing trace with hash -1668670364, now seen corresponding path program 1 times [2019-12-07 19:28:14,258 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:28:14,259 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [36801386] [2019-12-07 19:28:14,259 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b2dd0ba3-f0c6-46f4-a0c3-65ad8411e70e/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 19:28:14,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:28:14,429 INFO L264 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 19:28:14,430 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:28:14,437 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 19:28:14,437 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:28:14,444 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 19:28:14,445 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [36801386] [2019-12-07 19:28:14,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:28:14,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 19:28:14,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342807440] [2019-12-07 19:28:14,446 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 19:28:14,446 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:28:14,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 19:28:14,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 19:28:14,446 INFO L87 Difference]: Start difference. First operand 87 states and 127 transitions. Second operand 4 states. [2019-12-07 19:28:14,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:28:14,470 INFO L93 Difference]: Finished difference Result 274 states and 406 transitions. [2019-12-07 19:28:14,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 19:28:14,471 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-12-07 19:28:14,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:28:14,472 INFO L225 Difference]: With dead ends: 274 [2019-12-07 19:28:14,473 INFO L226 Difference]: Without dead ends: 193 [2019-12-07 19:28:14,474 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 19:28:14,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2019-12-07 19:28:14,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 108. [2019-12-07 19:28:14,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-12-07 19:28:14,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 159 transitions. [2019-12-07 19:28:14,488 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 159 transitions. Word has length 24 [2019-12-07 19:28:14,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:28:14,488 INFO L462 AbstractCegarLoop]: Abstraction has 108 states and 159 transitions. [2019-12-07 19:28:14,488 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 19:28:14,489 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 159 transitions. [2019-12-07 19:28:14,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-07 19:28:14,490 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:28:14,490 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 19:28:14,691 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 19:28:14,692 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:28:14,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:28:14,692 INFO L82 PathProgramCache]: Analyzing trace with hash -1791027038, now seen corresponding path program 1 times [2019-12-07 19:28:14,693 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:28:14,694 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [174930960] [2019-12-07 19:28:14,694 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b2dd0ba3-f0c6-46f4-a0c3-65ad8411e70e/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 19:28:14,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:28:14,839 INFO L264 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 19:28:14,840 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:28:14,845 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 19:28:14,846 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:28:14,848 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 19:28:14,848 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [174930960] [2019-12-07 19:28:14,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:28:14,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 19:28:14,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68770686] [2019-12-07 19:28:14,848 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 19:28:14,848 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:28:14,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 19:28:14,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 19:28:14,849 INFO L87 Difference]: Start difference. First operand 108 states and 159 transitions. Second operand 3 states. [2019-12-07 19:28:14,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:28:14,910 INFO L93 Difference]: Finished difference Result 218 states and 323 transitions. [2019-12-07 19:28:14,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 19:28:14,910 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2019-12-07 19:28:14,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:28:14,911 INFO L225 Difference]: With dead ends: 218 [2019-12-07 19:28:14,912 INFO L226 Difference]: Without dead ends: 116 [2019-12-07 19:28:14,912 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 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 19:28:14,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2019-12-07 19:28:14,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2019-12-07 19:28:14,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-12-07 19:28:14,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 162 transitions. [2019-12-07 19:28:14,923 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 162 transitions. Word has length 27 [2019-12-07 19:28:14,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:28:14,924 INFO L462 AbstractCegarLoop]: Abstraction has 114 states and 162 transitions. [2019-12-07 19:28:14,924 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 19:28:14,924 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 162 transitions. [2019-12-07 19:28:14,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-07 19:28:14,925 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:28:14,925 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 19:28:15,125 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 19:28:15,126 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:28:15,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:28:15,127 INFO L82 PathProgramCache]: Analyzing trace with hash 234819321, now seen corresponding path program 1 times [2019-12-07 19:28:15,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:28:15,129 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [327404285] [2019-12-07 19:28:15,130 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b2dd0ba3-f0c6-46f4-a0c3-65ad8411e70e/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 19:28:15,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:28:15,279 INFO L264 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 19:28:15,281 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:28:15,296 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 19:28:15,296 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:28:15,318 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 19:28:15,319 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [327404285] [2019-12-07 19:28:15,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:28:15,319 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-12-07 19:28:15,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363924419] [2019-12-07 19:28:15,319 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 19:28:15,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:28:15,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 19:28:15,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 19:28:15,320 INFO L87 Difference]: Start difference. First operand 114 states and 162 transitions. Second operand 8 states. [2019-12-07 19:28:15,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:28:15,695 INFO L93 Difference]: Finished difference Result 1297 states and 1882 transitions. [2019-12-07 19:28:15,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-12-07 19:28:15,696 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2019-12-07 19:28:15,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:28:15,701 INFO L225 Difference]: With dead ends: 1297 [2019-12-07 19:28:15,701 INFO L226 Difference]: Without dead ends: 1189 [2019-12-07 19:28:15,702 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2019-12-07 19:28:15,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1189 states. [2019-12-07 19:28:15,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1189 to 282. [2019-12-07 19:28:15,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2019-12-07 19:28:15,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 396 transitions. [2019-12-07 19:28:15,726 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 396 transitions. Word has length 27 [2019-12-07 19:28:15,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:28:15,726 INFO L462 AbstractCegarLoop]: Abstraction has 282 states and 396 transitions. [2019-12-07 19:28:15,726 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 19:28:15,726 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 396 transitions. [2019-12-07 19:28:15,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-07 19:28:15,727 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:28:15,727 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 19:28:15,927 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 19:28:15,928 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:28:15,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:28:15,929 INFO L82 PathProgramCache]: Analyzing trace with hash -1465444421, now seen corresponding path program 1 times [2019-12-07 19:28:15,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:28:15,931 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2086660259] [2019-12-07 19:28:15,931 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b2dd0ba3-f0c6-46f4-a0c3-65ad8411e70e/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 19:28:16,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:28:17,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:28:18,027 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 19:28:18,028 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 19:28:18,228 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 19:28:18,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 07:28:18 BoogieIcfgContainer [2019-12-07 19:28:18,297 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 19:28:18,298 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 19:28:18,298 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 19:28:18,298 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 19:28:18,298 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:28:13" (3/4) ... [2019-12-07 19:28:18,300 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 19:28:18,353 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b2dd0ba3-f0c6-46f4-a0c3-65ad8411e70e/bin/utaipan/witness.graphml [2019-12-07 19:28:18,354 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 19:28:18,355 INFO L168 Benchmark]: Toolchain (without parser) took 6435.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 194.5 MB). Free memory was 952.4 MB in the beginning and 1.0 GB in the end (delta: -92.7 MB). Peak memory consumption was 101.9 MB. Max. memory is 11.5 GB. [2019-12-07 19:28:18,355 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 19:28:18,355 INFO L168 Benchmark]: CACSL2BoogieTranslator took 417.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -125.8 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. [2019-12-07 19:28:18,356 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.66 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 19:28:18,356 INFO L168 Benchmark]: Boogie Preprocessor took 46.90 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 19:28:18,356 INFO L168 Benchmark]: RCFGBuilder took 771.59 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 966.6 MB in the end (delta: 99.4 MB). Peak memory consumption was 99.4 MB. Max. memory is 11.5 GB. [2019-12-07 19:28:18,356 INFO L168 Benchmark]: TraceAbstraction took 5085.03 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 88.6 MB). Free memory was 966.6 MB in the beginning and 1.1 GB in the end (delta: -94.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 19:28:18,357 INFO L168 Benchmark]: Witness Printer took 56.12 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: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2019-12-07 19:28:18,358 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 417.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -125.8 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 55.66 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 46.90 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 771.59 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 966.6 MB in the end (delta: 99.4 MB). Peak memory consumption was 99.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5085.03 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 88.6 MB). Free memory was 966.6 MB in the beginning and 1.1 GB in the end (delta: -94.1 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 56.12 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: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 619]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L188] int pumpRunning = 0; [L189] int systemActive = 1; [L512] int waterLevel = 1; [L513] int methaneLevelCritical = 0; [L827] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L121] int retValue_acc ; [L122] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L170] int retValue_acc ; [L173] retValue_acc = 1 [L174] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L445] int splverifierCounter ; [L446] int tmp ; [L447] int tmp___0 ; [L448] int tmp___1 ; [L449] int tmp___2 ; [L452] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L454] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L456] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L462] tmp = __VERIFIER_nondet_int() [L464] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L530] COND TRUE waterLevel < 2 [L531] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L472] tmp___0 = __VERIFIER_nondet_int() [L474] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L482] tmp___2 = __VERIFIER_nondet_int() [L484] COND FALSE !(\read(tmp___2)) [L488] tmp___1 = __VERIFIER_nondet_int() [L490] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L432] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L439] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L196] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L203] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L625] int tmp ; [L626] int tmp___0 ; [L627] int tmp___1 ; [L551] int retValue_acc ; [L554] retValue_acc = methaneLevelCritical [L555] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L631] tmp = isMethaneLevelCritical() [L633] COND FALSE !(\read(tmp)) [L583] int retValue_acc ; [L586] retValue_acc = waterLevel [L587] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L637] tmp___0 = getWaterLevel() [L639] COND TRUE tmp___0 == 2 [L346] int retValue_acc ; [L349] retValue_acc = pumpRunning [L350] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L641] tmp___1 = isPumpRunning() [L643] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L619] __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, 233 locations, 3 error locations. Result: UNSAFE, OverallTime: 4.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 860 SDtfs, 1950 SDslu, 1476 SDs, 0 SdLazy, 225 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 229 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=282occurred 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, 994 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 220 ConstructedInterpolants, 0 QuantifiedInterpolants, 13137 SizeOfPredicates, 6 NumberOfNonLiveVariables, 926 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...