./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product29.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_dcd76fbf-80b6-46c0-a053-fb58abfb3aac/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_dcd76fbf-80b6-46c0-a053-fb58abfb3aac/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_dcd76fbf-80b6-46c0-a053-fb58abfb3aac/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_dcd76fbf-80b6-46c0-a053-fb58abfb3aac/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product29.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_dcd76fbf-80b6-46c0-a053-fb58abfb3aac/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_dcd76fbf-80b6-46c0-a053-fb58abfb3aac/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 6a7af561659176054c5750cdb899e68779816fa6 ...................................................................................................................................... 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_dcd76fbf-80b6-46c0-a053-fb58abfb3aac/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_dcd76fbf-80b6-46c0-a053-fb58abfb3aac/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_dcd76fbf-80b6-46c0-a053-fb58abfb3aac/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_dcd76fbf-80b6-46c0-a053-fb58abfb3aac/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product29.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_dcd76fbf-80b6-46c0-a053-fb58abfb3aac/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_dcd76fbf-80b6-46c0-a053-fb58abfb3aac/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 6a7af561659176054c5750cdb899e68779816fa6 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 22:07:49,007 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 22:07:49,008 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 22:07:49,016 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 22:07:49,016 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 22:07:49,016 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 22:07:49,017 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 22:07:49,019 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 22:07:49,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 22:07:49,021 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 22:07:49,021 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 22:07:49,022 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 22:07:49,022 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 22:07:49,023 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 22:07:49,024 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 22:07:49,025 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 22:07:49,026 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 22:07:49,026 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 22:07:49,028 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 22:07:49,029 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 22:07:49,030 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 22:07:49,031 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 22:07:49,031 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 22:07:49,032 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 22:07:49,034 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 22:07:49,034 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 22:07:49,034 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 22:07:49,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 22:07:49,035 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 22:07:49,035 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 22:07:49,035 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 22:07:49,036 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 22:07:49,036 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 22:07:49,037 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 22:07:49,037 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 22:07:49,037 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 22:07:49,038 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 22:07:49,038 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 22:07:49,038 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 22:07:49,039 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 22:07:49,039 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 22:07:49,039 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_dcd76fbf-80b6-46c0-a053-fb58abfb3aac/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 22:07:49,050 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 22:07:49,050 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 22:07:49,050 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 22:07:49,050 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 22:07:49,051 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 22:07:49,051 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 22:07:49,051 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 22:07:49,051 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 22:07:49,051 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 22:07:49,051 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 22:07:49,051 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 22:07:49,052 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 22:07:49,052 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 22:07:49,052 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 22:07:49,052 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 22:07:49,052 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 22:07:49,053 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 22:07:49,053 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 22:07:49,053 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 22:07:49,053 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 22:07:49,053 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 22:07:49,053 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 22:07:49,053 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 22:07:49,053 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 22:07:49,054 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 22:07:49,054 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 22:07:49,054 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 22:07:49,054 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 22:07:49,054 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 22:07:49,054 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 22:07:49,054 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 22:07:49,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 22:07:49,055 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 22:07:49,055 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 22:07:49,055 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 22:07:49,055 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 22:07:49,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 22:07:49,055 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 22:07:49,055 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 22:07:49,055 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 22:07:49,055 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_dcd76fbf-80b6-46c0-a053-fb58abfb3aac/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 -> 6a7af561659176054c5750cdb899e68779816fa6 [2019-12-07 22:07:49,154 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 22:07:49,162 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 22:07:49,164 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 22:07:49,165 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 22:07:49,166 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 22:07:49,166 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_dcd76fbf-80b6-46c0-a053-fb58abfb3aac/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product29.cil.c [2019-12-07 22:07:49,202 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dcd76fbf-80b6-46c0-a053-fb58abfb3aac/bin/utaipan/data/cd2e158ee/537dc5b6c85448598019855be061a9d1/FLAGb130894bb [2019-12-07 22:07:49,585 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 22:07:49,585 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_dcd76fbf-80b6-46c0-a053-fb58abfb3aac/sv-benchmarks/c/product-lines/minepump_spec3_product29.cil.c [2019-12-07 22:07:49,593 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dcd76fbf-80b6-46c0-a053-fb58abfb3aac/bin/utaipan/data/cd2e158ee/537dc5b6c85448598019855be061a9d1/FLAGb130894bb [2019-12-07 22:07:49,601 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_dcd76fbf-80b6-46c0-a053-fb58abfb3aac/bin/utaipan/data/cd2e158ee/537dc5b6c85448598019855be061a9d1 [2019-12-07 22:07:49,603 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 22:07:49,604 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 22:07:49,605 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 22:07:49,605 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 22:07:49,607 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 22:07:49,608 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:07:49" (1/1) ... [2019-12-07 22:07:49,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c2b2671 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:49, skipping insertion in model container [2019-12-07 22:07:49,610 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:07:49" (1/1) ... [2019-12-07 22:07:49,614 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 22:07:49,642 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 22:07:49,863 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 22:07:49,872 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 22:07:49,872 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2acfba0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:49, skipping insertion in model container [2019-12-07 22:07:49,872 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 22:07:49,873 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 22:07:49,874 INFO L168 Benchmark]: Toolchain (without parser) took 269.68 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -156.8 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-12-07 22:07:49,875 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 22:07:49,875 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.92 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -162.2 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-12-07 22:07:49,877 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 267.92 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -162.2 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 200]: 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 22:07:51,064 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 22:07:51,065 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 22:07:51,073 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 22:07:51,073 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 22:07:51,074 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 22:07:51,075 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 22:07:51,076 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 22:07:51,078 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 22:07:51,078 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 22:07:51,079 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 22:07:51,080 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 22:07:51,080 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 22:07:51,081 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 22:07:51,081 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 22:07:51,082 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 22:07:51,083 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 22:07:51,083 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 22:07:51,085 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 22:07:51,086 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 22:07:51,088 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 22:07:51,088 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 22:07:51,089 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 22:07:51,090 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 22:07:51,092 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 22:07:51,092 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 22:07:51,092 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 22:07:51,093 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 22:07:51,093 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 22:07:51,094 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 22:07:51,094 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 22:07:51,094 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 22:07:51,095 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 22:07:51,095 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 22:07:51,096 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 22:07:51,096 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 22:07:51,097 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 22:07:51,097 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 22:07:51,097 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 22:07:51,098 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 22:07:51,098 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 22:07:51,099 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_dcd76fbf-80b6-46c0-a053-fb58abfb3aac/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 22:07:51,109 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 22:07:51,109 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 22:07:51,109 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 22:07:51,109 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 22:07:51,110 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 22:07:51,110 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 22:07:51,110 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 22:07:51,110 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 22:07:51,110 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 22:07:51,111 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 22:07:51,111 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 22:07:51,111 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 22:07:51,111 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 22:07:51,111 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 22:07:51,111 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 22:07:51,112 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 22:07:51,112 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 22:07:51,112 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 22:07:51,112 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 22:07:51,112 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 22:07:51,112 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 22:07:51,112 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 22:07:51,113 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 22:07:51,113 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 22:07:51,113 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 22:07:51,113 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 22:07:51,113 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 22:07:51,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 22:07:51,113 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 22:07:51,114 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 22:07:51,114 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 22:07:51,114 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 22:07:51,114 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 22:07:51,114 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 22:07:51,114 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 22:07:51,114 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 22:07:51,115 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_dcd76fbf-80b6-46c0-a053-fb58abfb3aac/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 -> 6a7af561659176054c5750cdb899e68779816fa6 [2019-12-07 22:07:51,275 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 22:07:51,283 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 22:07:51,285 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 22:07:51,286 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 22:07:51,286 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 22:07:51,286 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_dcd76fbf-80b6-46c0-a053-fb58abfb3aac/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product29.cil.c [2019-12-07 22:07:51,324 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dcd76fbf-80b6-46c0-a053-fb58abfb3aac/bin/utaipan/data/fb3773121/5224ffadc14343b8a8520c9f202c826e/FLAGe4e28ef21 [2019-12-07 22:07:51,696 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 22:07:51,697 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_dcd76fbf-80b6-46c0-a053-fb58abfb3aac/sv-benchmarks/c/product-lines/minepump_spec3_product29.cil.c [2019-12-07 22:07:51,704 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dcd76fbf-80b6-46c0-a053-fb58abfb3aac/bin/utaipan/data/fb3773121/5224ffadc14343b8a8520c9f202c826e/FLAGe4e28ef21 [2019-12-07 22:07:51,713 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_dcd76fbf-80b6-46c0-a053-fb58abfb3aac/bin/utaipan/data/fb3773121/5224ffadc14343b8a8520c9f202c826e [2019-12-07 22:07:51,715 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 22:07:51,716 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 22:07:51,716 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 22:07:51,717 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 22:07:51,719 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 22:07:51,719 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:07:51" (1/1) ... [2019-12-07 22:07:51,721 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b70e7d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:51, skipping insertion in model container [2019-12-07 22:07:51,721 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:07:51" (1/1) ... [2019-12-07 22:07:51,726 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 22:07:51,752 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 22:07:51,966 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 22:07:51,976 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 22:07:51,981 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 22:07:52,022 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 22:07:52,026 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 22:07:52,065 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 22:07:52,088 INFO L208 MainTranslator]: Completed translation [2019-12-07 22:07:52,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:52 WrapperNode [2019-12-07 22:07:52,089 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 22:07:52,089 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 22:07:52,089 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 22:07:52,089 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 22:07:52,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:52" (1/1) ... [2019-12-07 22:07:52,109 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:52" (1/1) ... [2019-12-07 22:07:52,136 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 22:07:52,136 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 22:07:52,136 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 22:07:52,136 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 22:07:52,143 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:52" (1/1) ... [2019-12-07 22:07:52,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:52" (1/1) ... [2019-12-07 22:07:52,147 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:52" (1/1) ... [2019-12-07 22:07:52,147 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:52" (1/1) ... [2019-12-07 22:07:52,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:52" (1/1) ... [2019-12-07 22:07:52,162 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:52" (1/1) ... [2019-12-07 22:07:52,164 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:52" (1/1) ... [2019-12-07 22:07:52,167 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 22:07:52,168 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 22:07:52,168 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 22:07:52,168 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 22:07:52,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dcd76fbf-80b6-46c0-a053-fb58abfb3aac/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 22:07:52,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 22:07:52,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 22:07:52,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 22:07:52,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 22:07:52,710 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 22:07:52,711 INFO L287 CfgBuilder]: Removed 162 assume(true) statements. [2019-12-07 22:07:52,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:07:52 BoogieIcfgContainer [2019-12-07 22:07:52,712 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 22:07:52,713 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 22:07:52,713 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 22:07:52,716 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 22:07:52,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 10:07:51" (1/3) ... [2019-12-07 22:07:52,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@89d8bd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:07:52, skipping insertion in model container [2019-12-07 22:07:52,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:52" (2/3) ... [2019-12-07 22:07:52,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@89d8bd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:07:52, skipping insertion in model container [2019-12-07 22:07:52,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:07:52" (3/3) ... [2019-12-07 22:07:52,719 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product29.cil.c [2019-12-07 22:07:52,729 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 22:07:52,736 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 22:07:52,744 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 22:07:52,761 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 22:07:52,761 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 22:07:52,761 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 22:07:52,762 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 22:07:52,762 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 22:07:52,762 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 22:07:52,762 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 22:07:52,762 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 22:07:52,775 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states. [2019-12-07 22:07:52,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 22:07:52,780 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:07:52,781 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 22:07:52,781 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:07:52,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:07:52,785 INFO L82 PathProgramCache]: Analyzing trace with hash -1669144853, now seen corresponding path program 1 times [2019-12-07 22:07:52,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 22:07:52,794 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1714207294] [2019-12-07 22:07:52,794 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dcd76fbf-80b6-46c0-a053-fb58abfb3aac/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 22:07:52,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:07:52,938 INFO L264 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 22:07:52,942 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 22:07:52,954 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 22:07:52,954 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 22:07:52,959 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 22:07:52,960 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1714207294] [2019-12-07 22:07:52,960 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:07:52,961 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 22:07:52,961 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510583036] [2019-12-07 22:07:52,965 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 22:07:52,966 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 22:07:52,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 22:07:52,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 22:07:52,979 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 2 states. [2019-12-07 22:07:53,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:07:53,003 INFO L93 Difference]: Finished difference Result 216 states and 323 transitions. [2019-12-07 22:07:53,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 22:07:53,004 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-12-07 22:07:53,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:07:53,017 INFO L225 Difference]: With dead ends: 216 [2019-12-07 22:07:53,017 INFO L226 Difference]: Without dead ends: 107 [2019-12-07 22:07:53,020 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 22:07:53,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2019-12-07 22:07:53,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2019-12-07 22:07:53,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-12-07 22:07:53,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 153 transitions. [2019-12-07 22:07:53,057 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 153 transitions. Word has length 18 [2019-12-07 22:07:53,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:07:53,057 INFO L462 AbstractCegarLoop]: Abstraction has 107 states and 153 transitions. [2019-12-07 22:07:53,057 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 22:07:53,058 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 153 transitions. [2019-12-07 22:07:53,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 22:07:53,058 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:07:53,059 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 22:07:53,259 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 22:07:53,259 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:07:53,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:07:53,260 INFO L82 PathProgramCache]: Analyzing trace with hash 1714791690, now seen corresponding path program 1 times [2019-12-07 22:07:53,260 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 22:07:53,260 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [319675030] [2019-12-07 22:07:53,261 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dcd76fbf-80b6-46c0-a053-fb58abfb3aac/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 22:07:53,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:07:53,380 INFO L264 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 22:07:53,382 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 22:07:53,400 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 22:07:53,400 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 22:07:53,411 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 22:07:53,412 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [319675030] [2019-12-07 22:07:53,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:07:53,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 22:07:53,413 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415838476] [2019-12-07 22:07:53,414 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 22:07:53,414 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 22:07:53,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 22:07:53,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 22:07:53,415 INFO L87 Difference]: Start difference. First operand 107 states and 153 transitions. Second operand 4 states. [2019-12-07 22:07:53,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:07:53,430 INFO L93 Difference]: Finished difference Result 107 states and 153 transitions. [2019-12-07 22:07:53,431 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 22:07:53,431 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2019-12-07 22:07:53,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:07:53,432 INFO L225 Difference]: With dead ends: 107 [2019-12-07 22:07:53,433 INFO L226 Difference]: Without dead ends: 45 [2019-12-07 22:07:53,434 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 22:07:53,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-12-07 22:07:53,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2019-12-07 22:07:53,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-12-07 22:07:53,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 64 transitions. [2019-12-07 22:07:53,440 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 64 transitions. Word has length 19 [2019-12-07 22:07:53,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:07:53,440 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 64 transitions. [2019-12-07 22:07:53,440 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 22:07:53,441 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2019-12-07 22:07:53,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 22:07:53,442 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:07:53,442 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 22:07:53,642 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 22:07:53,643 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:07:53,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:07:53,644 INFO L82 PathProgramCache]: Analyzing trace with hash -458606052, now seen corresponding path program 1 times [2019-12-07 22:07:53,645 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 22:07:53,645 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [837694289] [2019-12-07 22:07:53,646 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dcd76fbf-80b6-46c0-a053-fb58abfb3aac/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 22:07:53,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:07:53,835 INFO L264 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 22:07:53,837 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 22:07:53,844 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 22:07:53,845 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 22:07:53,852 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 22:07:53,852 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [837694289] [2019-12-07 22:07:53,852 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:07:53,853 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 22:07:53,853 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150785840] [2019-12-07 22:07:53,853 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 22:07:53,853 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 22:07:53,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 22:07:53,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 22:07:53,854 INFO L87 Difference]: Start difference. First operand 45 states and 64 transitions. Second operand 4 states. [2019-12-07 22:07:53,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:07:53,863 INFO L93 Difference]: Finished difference Result 84 states and 122 transitions. [2019-12-07 22:07:53,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 22:07:53,864 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-12-07 22:07:53,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:07:53,865 INFO L225 Difference]: With dead ends: 84 [2019-12-07 22:07:53,865 INFO L226 Difference]: Without dead ends: 45 [2019-12-07 22:07:53,866 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 22:07:53,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-12-07 22:07:53,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2019-12-07 22:07:53,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-12-07 22:07:53,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 63 transitions. [2019-12-07 22:07:53,872 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 63 transitions. Word has length 24 [2019-12-07 22:07:53,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:07:53,872 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 63 transitions. [2019-12-07 22:07:53,872 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 22:07:53,872 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 63 transitions. [2019-12-07 22:07:53,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-07 22:07:53,873 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:07:53,873 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 22:07:54,074 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 22:07:54,074 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:07:54,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:07:54,074 INFO L82 PathProgramCache]: Analyzing trace with hash 708469066, now seen corresponding path program 1 times [2019-12-07 22:07:54,075 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 22:07:54,075 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2065505071] [2019-12-07 22:07:54,075 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dcd76fbf-80b6-46c0-a053-fb58abfb3aac/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 22:07:54,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 22:07:54,181 INFO L264 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 22:07:54,183 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 22:07:54,208 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 22:07:54,208 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 22:07:54,233 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 22:07:54,234 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2065505071] [2019-12-07 22:07:54,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 22:07:54,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-12-07 22:07:54,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579868765] [2019-12-07 22:07:54,235 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 22:07:54,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 22:07:54,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 22:07:54,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 22:07:54,236 INFO L87 Difference]: Start difference. First operand 45 states and 63 transitions. Second operand 8 states. [2019-12-07 22:07:54,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 22:07:54,499 INFO L93 Difference]: Finished difference Result 500 states and 749 transitions. [2019-12-07 22:07:54,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-12-07 22:07:54,499 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2019-12-07 22:07:54,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 22:07:54,504 INFO L225 Difference]: With dead ends: 500 [2019-12-07 22:07:54,504 INFO L226 Difference]: Without dead ends: 461 [2019-12-07 22:07:54,505 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2019-12-07 22:07:54,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2019-12-07 22:07:54,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 114. [2019-12-07 22:07:54,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-12-07 22:07:54,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 163 transitions. [2019-12-07 22:07:54,529 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 163 transitions. Word has length 26 [2019-12-07 22:07:54,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 22:07:54,529 INFO L462 AbstractCegarLoop]: Abstraction has 114 states and 163 transitions. [2019-12-07 22:07:54,530 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 22:07:54,530 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 163 transitions. [2019-12-07 22:07:54,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-07 22:07:54,531 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 22:07:54,532 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 22:07:54,732 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 22:07:54,733 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 22:07:54,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 22:07:54,734 INFO L82 PathProgramCache]: Analyzing trace with hash 99432520, now seen corresponding path program 1 times [2019-12-07 22:07:54,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 22:07:54,736 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1092241253] [2019-12-07 22:07:54,737 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dcd76fbf-80b6-46c0-a053-fb58abfb3aac/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 22:07:55,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 22:07:56,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 22:07:56,627 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 22:07:56,628 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 22:07:56,828 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 22:07:56,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 10:07:56 BoogieIcfgContainer [2019-12-07 22:07:56,934 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 22:07:56,934 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 22:07:56,935 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 22:07:56,935 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 22:07:56,935 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:07:52" (3/4) ... [2019-12-07 22:07:56,936 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 22:07:56,989 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_dcd76fbf-80b6-46c0-a053-fb58abfb3aac/bin/utaipan/witness.graphml [2019-12-07 22:07:56,989 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 22:07:56,990 INFO L168 Benchmark]: Toolchain (without parser) took 5274.32 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 221.8 MB). Free memory was 952.4 MB in the beginning and 1.2 GB in the end (delta: -246.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 22:07:56,991 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 22:07:56,991 INFO L168 Benchmark]: CACSL2BoogieTranslator took 372.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -179.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-12-07 22:07:56,991 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.42 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 22:07:56,991 INFO L168 Benchmark]: Boogie Preprocessor took 31.63 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 22:07:56,992 INFO L168 Benchmark]: RCFGBuilder took 544.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 81.5 MB). Peak memory consumption was 81.5 MB. Max. memory is 11.5 GB. [2019-12-07 22:07:56,992 INFO L168 Benchmark]: TraceAbstraction took 4221.02 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 70.3 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -171.7 MB). Peak memory consumption was 232.9 MB. Max. memory is 11.5 GB. [2019-12-07 22:07:56,992 INFO L168 Benchmark]: Witness Printer took 54.71 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 11.5 GB. [2019-12-07 22:07:56,994 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 372.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -179.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.42 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 31.63 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 544.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 81.5 MB). Peak memory consumption was 81.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4221.02 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 70.3 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -171.7 MB). Peak memory consumption was 232.9 MB. Max. memory is 11.5 GB. * Witness Printer took 54.71 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 580]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L83] int waterLevel = 1; [L84] int methaneLevelCritical = 0; [L341] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L585] int cleanupTimeShifts = 4; [L686] int pumpRunning = 0; [L687] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L661] int retValue_acc ; [L662] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L567] int retValue_acc ; [L570] retValue_acc = 1 [L571] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L668] tmp = valid_product() [L670] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L882] int splverifierCounter ; [L883] int tmp ; [L884] int tmp___0 ; [L885] int tmp___1 ; [L886] int tmp___2 ; [L889] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L891] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L893] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L899] tmp = __VERIFIER_nondet_int() [L901] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L101] COND TRUE waterLevel < 2 [L102] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L909] tmp___0 = __VERIFIER_nondet_int() [L911] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L919] tmp___2 = __VERIFIER_nondet_int() [L921] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L693] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L700] COND TRUE \read(systemActive) [L748] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L751] COND FALSE !(\read(pumpRunning)) [L722] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L725] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L122] int retValue_acc ; [L125] retValue_acc = methaneLevelCritical [L126] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L154] int retValue_acc ; [L157] retValue_acc = waterLevel [L158] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L817] int retValue_acc ; [L820] retValue_acc = pumpRunning [L821] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L580] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 111 locations, 3 error locations. Result: UNSAFE, OverallTime: 4.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 386 SDtfs, 925 SDslu, 700 SDs, 0 SdLazy, 124 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 175 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=114occurred in iteration=4, 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, 4 MinimizatonAttempts, 347 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 166 ConstructedInterpolants, 0 QuantifiedInterpolants, 10843 SizeOfPredicates, 6 NumberOfNonLiveVariables, 735 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...