./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product43.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_80106546-74a0-49fa-800d-e24a6a81f406/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_80106546-74a0-49fa-800d-e24a6a81f406/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_80106546-74a0-49fa-800d-e24a6a81f406/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_80106546-74a0-49fa-800d-e24a6a81f406/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_80106546-74a0-49fa-800d-e24a6a81f406/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_80106546-74a0-49fa-800d-e24a6a81f406/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 d3ef47dc64404f2fae365adb4fa9379fd10f9c50 ...................................................................................................................................... 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_80106546-74a0-49fa-800d-e24a6a81f406/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_80106546-74a0-49fa-800d-e24a6a81f406/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_80106546-74a0-49fa-800d-e24a6a81f406/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_80106546-74a0-49fa-800d-e24a6a81f406/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_80106546-74a0-49fa-800d-e24a6a81f406/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_80106546-74a0-49fa-800d-e24a6a81f406/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 d3ef47dc64404f2fae365adb4fa9379fd10f9c50 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 17:03:36,072 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:03:36,074 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:03:36,081 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:03:36,081 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:03:36,082 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:03:36,083 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:03:36,084 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:03:36,085 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:03:36,086 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:03:36,087 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:03:36,087 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:03:36,088 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:03:36,088 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:03:36,089 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:03:36,090 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:03:36,090 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:03:36,091 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:03:36,092 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:03:36,093 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:03:36,095 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:03:36,095 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:03:36,096 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:03:36,096 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:03:36,098 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:03:36,098 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:03:36,098 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:03:36,099 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:03:36,099 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:03:36,099 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:03:36,100 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:03:36,100 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:03:36,100 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:03:36,101 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:03:36,101 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:03:36,102 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:03:36,102 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:03:36,102 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:03:36,102 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:03:36,103 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:03:36,103 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:03:36,104 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_80106546-74a0-49fa-800d-e24a6a81f406/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 17:03:36,114 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:03:36,114 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:03:36,114 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 17:03:36,115 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 17:03:36,115 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 17:03:36,115 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 17:03:36,115 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 17:03:36,115 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 17:03:36,115 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 17:03:36,115 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 17:03:36,115 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 17:03:36,116 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 17:03:36,116 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 17:03:36,116 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 17:03:36,116 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 17:03:36,116 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:03:36,116 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 17:03:36,117 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 17:03:36,117 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 17:03:36,117 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:03:36,117 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 17:03:36,117 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 17:03:36,117 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 17:03:36,117 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 17:03:36,117 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 17:03:36,118 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 17:03:36,118 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:03:36,118 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 17:03:36,118 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:03:36,118 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 17:03:36,118 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 17:03:36,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 17:03:36,118 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:03:36,118 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 17:03:36,119 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 17:03:36,119 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 17:03:36,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 17:03:36,119 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 17:03:36,119 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:03:36,119 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 17:03:36,119 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_80106546-74a0-49fa-800d-e24a6a81f406/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 -> d3ef47dc64404f2fae365adb4fa9379fd10f9c50 [2019-12-07 17:03:36,216 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:03:36,225 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:03:36,227 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:03:36,229 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:03:36,229 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:03:36,230 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_80106546-74a0-49fa-800d-e24a6a81f406/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c [2019-12-07 17:03:36,273 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_80106546-74a0-49fa-800d-e24a6a81f406/bin/utaipan/data/c56b6b442/f60210ff4ffa4c6ca5887602289b4940/FLAGe6a69a5d7 [2019-12-07 17:03:36,669 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:03:36,670 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_80106546-74a0-49fa-800d-e24a6a81f406/sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c [2019-12-07 17:03:36,677 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_80106546-74a0-49fa-800d-e24a6a81f406/bin/utaipan/data/c56b6b442/f60210ff4ffa4c6ca5887602289b4940/FLAGe6a69a5d7 [2019-12-07 17:03:37,052 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_80106546-74a0-49fa-800d-e24a6a81f406/bin/utaipan/data/c56b6b442/f60210ff4ffa4c6ca5887602289b4940 [2019-12-07 17:03:37,055 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:03:37,057 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 17:03:37,058 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:03:37,059 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:03:37,063 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:03:37,064 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:03:37" (1/1) ... [2019-12-07 17:03:37,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a523291 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:03:37, skipping insertion in model container [2019-12-07 17:03:37,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:03:37" (1/1) ... [2019-12-07 17:03:37,072 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:03:37,100 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:03:37,308 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:03:37,317 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 17:03:37,317 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3e74acd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:03:37, skipping insertion in model container [2019-12-07 17:03:37,317 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:03:37,318 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 17:03:37,319 INFO L168 Benchmark]: Toolchain (without parser) took 262.25 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.3 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -140.8 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-12-07 17:03:37,320 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:03:37,320 INFO L168 Benchmark]: CACSL2BoogieTranslator took 259.34 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.3 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -146.1 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-12-07 17:03:37,321 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 259.34 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.3 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -146.1 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 169]: 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 17:03:38,418 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:03:38,419 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:03:38,427 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:03:38,428 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:03:38,428 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:03:38,429 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:03:38,431 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:03:38,432 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:03:38,432 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:03:38,433 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:03:38,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:03:38,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:03:38,435 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:03:38,435 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:03:38,436 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:03:38,437 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:03:38,437 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:03:38,439 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:03:38,440 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:03:38,442 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:03:38,442 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:03:38,443 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:03:38,444 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:03:38,446 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:03:38,446 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:03:38,446 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:03:38,447 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:03:38,447 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:03:38,448 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:03:38,448 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:03:38,448 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:03:38,449 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:03:38,449 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:03:38,450 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:03:38,450 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:03:38,450 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:03:38,451 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:03:38,451 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:03:38,451 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:03:38,452 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:03:38,452 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_80106546-74a0-49fa-800d-e24a6a81f406/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 17:03:38,462 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:03:38,463 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:03:38,463 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 17:03:38,463 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 17:03:38,464 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 17:03:38,464 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 17:03:38,464 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 17:03:38,464 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 17:03:38,464 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 17:03:38,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:03:38,465 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 17:03:38,465 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 17:03:38,465 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:03:38,465 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 17:03:38,465 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 17:03:38,465 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 17:03:38,465 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 17:03:38,466 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 17:03:38,466 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 17:03:38,466 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 17:03:38,466 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 17:03:38,466 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:03:38,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 17:03:38,466 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:03:38,466 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:03:38,467 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 17:03:38,467 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 17:03:38,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 17:03:38,467 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:03:38,467 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 17:03:38,467 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 17:03:38,467 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 17:03:38,467 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 17:03:38,468 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 17:03:38,468 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:03:38,468 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 17:03:38,468 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_80106546-74a0-49fa-800d-e24a6a81f406/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 -> d3ef47dc64404f2fae365adb4fa9379fd10f9c50 [2019-12-07 17:03:38,642 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:03:38,653 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:03:38,655 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:03:38,657 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:03:38,657 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:03:38,657 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_80106546-74a0-49fa-800d-e24a6a81f406/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c [2019-12-07 17:03:38,705 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_80106546-74a0-49fa-800d-e24a6a81f406/bin/utaipan/data/fcd3e58be/43a67be26a7346c8b9473b2d8975ca28/FLAGe7e9dc5ad [2019-12-07 17:03:39,105 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:03:39,106 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_80106546-74a0-49fa-800d-e24a6a81f406/sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c [2019-12-07 17:03:39,113 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_80106546-74a0-49fa-800d-e24a6a81f406/bin/utaipan/data/fcd3e58be/43a67be26a7346c8b9473b2d8975ca28/FLAGe7e9dc5ad [2019-12-07 17:03:39,469 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_80106546-74a0-49fa-800d-e24a6a81f406/bin/utaipan/data/fcd3e58be/43a67be26a7346c8b9473b2d8975ca28 [2019-12-07 17:03:39,471 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:03:39,471 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 17:03:39,472 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:03:39,472 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:03:39,474 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:03:39,475 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:03:39" (1/1) ... [2019-12-07 17:03:39,477 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9aca9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:03:39, skipping insertion in model container [2019-12-07 17:03:39,477 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:03:39" (1/1) ... [2019-12-07 17:03:39,482 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:03:39,515 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:03:39,715 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:03:39,764 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 17:03:39,771 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:03:39,818 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:03:39,822 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:03:39,863 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:03:39,886 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:03:39,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:03:39 WrapperNode [2019-12-07 17:03:39,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:03:39,887 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 17:03:39,887 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 17:03:39,887 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 17:03:39,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:03:39" (1/1) ... [2019-12-07 17:03:39,906 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:03:39" (1/1) ... [2019-12-07 17:03:39,931 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 17:03:39,931 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:03:39,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:03:39,932 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:03:39,941 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:03:39" (1/1) ... [2019-12-07 17:03:39,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:03:39" (1/1) ... [2019-12-07 17:03:39,946 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:03:39" (1/1) ... [2019-12-07 17:03:39,946 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:03:39" (1/1) ... [2019-12-07 17:03:39,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:03:39" (1/1) ... [2019-12-07 17:03:39,963 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:03:39" (1/1) ... [2019-12-07 17:03:39,966 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:03:39" (1/1) ... [2019-12-07 17:03:39,969 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:03:39,969 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:03:39,969 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:03:39,969 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:03:39,970 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:03:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80106546-74a0-49fa-800d-e24a6a81f406/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 17:03:40,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 17:03:40,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 17:03:40,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:03:40,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:03:40,520 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:03:40,520 INFO L287 CfgBuilder]: Removed 120 assume(true) statements. [2019-12-07 17:03:40,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:03:40 BoogieIcfgContainer [2019-12-07 17:03:40,521 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:03:40,522 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 17:03:40,522 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 17:03:40,524 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 17:03:40,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 05:03:39" (1/3) ... [2019-12-07 17:03:40,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d622196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:03:40, skipping insertion in model container [2019-12-07 17:03:40,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:03:39" (2/3) ... [2019-12-07 17:03:40,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d622196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:03:40, skipping insertion in model container [2019-12-07 17:03:40,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:03:40" (3/3) ... [2019-12-07 17:03:40,526 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product43.cil.c [2019-12-07 17:03:40,533 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 17:03:40,538 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 17:03:40,545 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 17:03:40,561 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 17:03:40,561 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 17:03:40,561 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 17:03:40,561 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:03:40,561 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:03:40,561 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 17:03:40,561 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:03:40,561 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 17:03:40,572 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states. [2019-12-07 17:03:40,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 17:03:40,576 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:03:40,577 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 17:03:40,577 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:03:40,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:03:40,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1388908220, now seen corresponding path program 1 times [2019-12-07 17:03:40,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 17:03:40,589 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [305476310] [2019-12-07 17:03:40,589 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80106546-74a0-49fa-800d-e24a6a81f406/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 17:03:40,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:03:40,718 INFO L264 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 17:03:40,722 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:03:40,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:03:40,733 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:03:40,737 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 17:03:40,738 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [305476310] [2019-12-07 17:03:40,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:03:40,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 17:03:40,740 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906819486] [2019-12-07 17:03:40,744 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 17:03:40,744 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 17:03:40,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 17:03:40,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 17:03:40,757 INFO L87 Difference]: Start difference. First operand 93 states. Second operand 2 states. [2019-12-07 17:03:40,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:03:40,777 INFO L93 Difference]: Finished difference Result 179 states and 270 transitions. [2019-12-07 17:03:40,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 17:03:40,779 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-12-07 17:03:40,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:03:40,789 INFO L225 Difference]: With dead ends: 179 [2019-12-07 17:03:40,789 INFO L226 Difference]: Without dead ends: 89 [2019-12-07 17:03:40,792 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 17:03:40,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2019-12-07 17:03:40,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2019-12-07 17:03:40,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2019-12-07 17:03:40,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 127 transitions. [2019-12-07 17:03:40,826 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 127 transitions. Word has length 18 [2019-12-07 17:03:40,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:03:40,826 INFO L462 AbstractCegarLoop]: Abstraction has 89 states and 127 transitions. [2019-12-07 17:03:40,826 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 17:03:40,826 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 127 transitions. [2019-12-07 17:03:40,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 17:03:40,827 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:03:40,827 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 17:03:41,028 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 17:03:41,029 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:03:41,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:03:41,029 INFO L82 PathProgramCache]: Analyzing trace with hash -1607744189, now seen corresponding path program 1 times [2019-12-07 17:03:41,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 17:03:41,031 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1391766658] [2019-12-07 17:03:41,031 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80106546-74a0-49fa-800d-e24a6a81f406/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 17:03:41,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:03:41,223 INFO L264 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 17:03:41,225 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:03:41,239 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 17:03:41,239 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:03:41,248 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 17:03:41,248 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1391766658] [2019-12-07 17:03:41,248 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:03:41,248 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 17:03:41,249 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180938292] [2019-12-07 17:03:41,250 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 17:03:41,250 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 17:03:41,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 17:03:41,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 17:03:41,250 INFO L87 Difference]: Start difference. First operand 89 states and 127 transitions. Second operand 4 states. [2019-12-07 17:03:41,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:03:41,261 INFO L93 Difference]: Finished difference Result 89 states and 127 transitions. [2019-12-07 17:03:41,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:03:41,261 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2019-12-07 17:03:41,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:03:41,262 INFO L225 Difference]: With dead ends: 89 [2019-12-07 17:03:41,262 INFO L226 Difference]: Without dead ends: 41 [2019-12-07 17:03:41,263 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 17:03:41,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-12-07 17:03:41,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2019-12-07 17:03:41,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-12-07 17:03:41,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 58 transitions. [2019-12-07 17:03:41,268 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 58 transitions. Word has length 19 [2019-12-07 17:03:41,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:03:41,268 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 58 transitions. [2019-12-07 17:03:41,268 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 17:03:41,268 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 58 transitions. [2019-12-07 17:03:41,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 17:03:41,269 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:03:41,269 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 17:03:41,469 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 17:03:41,470 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:03:41,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:03:41,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1417220031, now seen corresponding path program 1 times [2019-12-07 17:03:41,471 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 17:03:41,472 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [258859766] [2019-12-07 17:03:41,472 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80106546-74a0-49fa-800d-e24a6a81f406/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 17:03:41,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:03:41,617 INFO L264 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 17:03:41,619 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:03:41,626 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 17:03:41,627 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:03:41,633 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 17:03:41,634 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [258859766] [2019-12-07 17:03:41,634 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:03:41,634 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 17:03:41,634 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668856912] [2019-12-07 17:03:41,635 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 17:03:41,635 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 17:03:41,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 17:03:41,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 17:03:41,636 INFO L87 Difference]: Start difference. First operand 41 states and 58 transitions. Second operand 4 states. [2019-12-07 17:03:41,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:03:41,654 INFO L93 Difference]: Finished difference Result 133 states and 196 transitions. [2019-12-07 17:03:41,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 17:03:41,655 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-12-07 17:03:41,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:03:41,656 INFO L225 Difference]: With dead ends: 133 [2019-12-07 17:03:41,657 INFO L226 Difference]: Without dead ends: 99 [2019-12-07 17:03:41,657 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 17:03:41,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-12-07 17:03:41,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 61. [2019-12-07 17:03:41,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2019-12-07 17:03:41,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 89 transitions. [2019-12-07 17:03:41,668 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 89 transitions. Word has length 24 [2019-12-07 17:03:41,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:03:41,669 INFO L462 AbstractCegarLoop]: Abstraction has 61 states and 89 transitions. [2019-12-07 17:03:41,669 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 17:03:41,669 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 89 transitions. [2019-12-07 17:03:41,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 17:03:41,670 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:03:41,670 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:03:41,871 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 17:03:41,872 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:03:41,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:03:41,872 INFO L82 PathProgramCache]: Analyzing trace with hash -462384263, now seen corresponding path program 1 times [2019-12-07 17:03:41,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 17:03:41,874 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1441272049] [2019-12-07 17:03:41,874 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80106546-74a0-49fa-800d-e24a6a81f406/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 17:03:42,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:03:42,063 INFO L264 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 17:03:42,065 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:03:42,070 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 17:03:42,070 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:03:42,072 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 17:03:42,072 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1441272049] [2019-12-07 17:03:42,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:03:42,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 17:03:42,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8845379] [2019-12-07 17:03:42,073 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 17:03:42,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 17:03:42,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 17:03:42,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:03:42,073 INFO L87 Difference]: Start difference. First operand 61 states and 89 transitions. Second operand 3 states. [2019-12-07 17:03:42,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:03:42,121 INFO L93 Difference]: Finished difference Result 137 states and 203 transitions. [2019-12-07 17:03:42,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:03:42,121 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-12-07 17:03:42,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:03:42,122 INFO L225 Difference]: With dead ends: 137 [2019-12-07 17:03:42,122 INFO L226 Difference]: Without dead ends: 83 [2019-12-07 17:03:42,123 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 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 17:03:42,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2019-12-07 17:03:42,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 81. [2019-12-07 17:03:42,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2019-12-07 17:03:42,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 116 transitions. [2019-12-07 17:03:42,131 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 116 transitions. Word has length 25 [2019-12-07 17:03:42,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:03:42,131 INFO L462 AbstractCegarLoop]: Abstraction has 81 states and 116 transitions. [2019-12-07 17:03:42,131 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 17:03:42,131 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 116 transitions. [2019-12-07 17:03:42,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-07 17:03:42,132 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:03:42,132 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 17:03:42,332 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 17:03:42,333 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:03:42,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:03:42,334 INFO L82 PathProgramCache]: Analyzing trace with hash 1738728008, now seen corresponding path program 1 times [2019-12-07 17:03:42,334 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 17:03:42,335 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [785301203] [2019-12-07 17:03:42,335 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80106546-74a0-49fa-800d-e24a6a81f406/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 17:03:42,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:03:42,457 INFO L264 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 17:03:42,458 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:03:42,471 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 17:03:42,471 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:03:42,477 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 17:03:42,478 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [785301203] [2019-12-07 17:03:42,478 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:03:42,478 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-12-07 17:03:42,478 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798480900] [2019-12-07 17:03:42,478 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 17:03:42,478 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 17:03:42,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 17:03:42,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 17:03:42,479 INFO L87 Difference]: Start difference. First operand 81 states and 116 transitions. Second operand 5 states. [2019-12-07 17:03:42,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:03:42,566 INFO L93 Difference]: Finished difference Result 378 states and 552 transitions. [2019-12-07 17:03:42,567 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 17:03:42,567 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-12-07 17:03:42,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:03:42,570 INFO L225 Difference]: With dead ends: 378 [2019-12-07 17:03:42,570 INFO L226 Difference]: Without dead ends: 304 [2019-12-07 17:03:42,571 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-07 17:03:42,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2019-12-07 17:03:42,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 144. [2019-12-07 17:03:42,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-12-07 17:03:42,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 203 transitions. [2019-12-07 17:03:42,593 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 203 transitions. Word has length 27 [2019-12-07 17:03:42,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:03:42,593 INFO L462 AbstractCegarLoop]: Abstraction has 144 states and 203 transitions. [2019-12-07 17:03:42,593 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 17:03:42,594 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 203 transitions. [2019-12-07 17:03:42,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-07 17:03:42,595 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:03:42,595 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 17:03:42,795 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 17:03:42,796 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:03:42,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:03:42,797 INFO L82 PathProgramCache]: Analyzing trace with hash 304582848, now seen corresponding path program 1 times [2019-12-07 17:03:42,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 17:03:42,798 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [458036656] [2019-12-07 17:03:42,798 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80106546-74a0-49fa-800d-e24a6a81f406/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 17:03:42,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:03:42,961 INFO L264 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 17:03:42,962 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:03:42,976 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 17:03:42,976 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:03:42,979 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 17:03:42,979 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [458036656] [2019-12-07 17:03:42,979 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:03:42,979 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 17:03:42,980 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188826068] [2019-12-07 17:03:42,980 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 17:03:42,980 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 17:03:42,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 17:03:42,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 17:03:42,980 INFO L87 Difference]: Start difference. First operand 144 states and 203 transitions. Second operand 5 states. [2019-12-07 17:03:43,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:03:43,137 INFO L93 Difference]: Finished difference Result 529 states and 751 transitions. [2019-12-07 17:03:43,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 17:03:43,138 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2019-12-07 17:03:43,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:03:43,140 INFO L225 Difference]: With dead ends: 529 [2019-12-07 17:03:43,140 INFO L226 Difference]: Without dead ends: 392 [2019-12-07 17:03:43,142 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-07 17:03:43,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2019-12-07 17:03:43,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 142. [2019-12-07 17:03:43,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2019-12-07 17:03:43,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 197 transitions. [2019-12-07 17:03:43,158 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 197 transitions. Word has length 28 [2019-12-07 17:03:43,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:03:43,158 INFO L462 AbstractCegarLoop]: Abstraction has 142 states and 197 transitions. [2019-12-07 17:03:43,158 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 17:03:43,158 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 197 transitions. [2019-12-07 17:03:43,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-07 17:03:43,160 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:03:43,160 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:03:43,361 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 17:03:43,361 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:03:43,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:03:43,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1643402821, now seen corresponding path program 1 times [2019-12-07 17:03:43,363 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 17:03:43,363 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [329591889] [2019-12-07 17:03:43,363 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80106546-74a0-49fa-800d-e24a6a81f406/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2019-12-07 17:03:43,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:03:43,536 INFO L264 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 17:03:43,537 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:03:43,549 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 17:03:43,549 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:03:43,552 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 17:03:43,552 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [329591889] [2019-12-07 17:03:43,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:03:43,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 17:03:43,553 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283995068] [2019-12-07 17:03:43,553 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 17:03:43,553 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 17:03:43,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 17:03:43,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 17:03:43,554 INFO L87 Difference]: Start difference. First operand 142 states and 197 transitions. Second operand 5 states. [2019-12-07 17:03:43,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:03:43,595 INFO L93 Difference]: Finished difference Result 429 states and 593 transitions. [2019-12-07 17:03:43,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 17:03:43,595 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2019-12-07 17:03:43,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:03:43,597 INFO L225 Difference]: With dead ends: 429 [2019-12-07 17:03:43,597 INFO L226 Difference]: Without dead ends: 294 [2019-12-07 17:03:43,597 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 17:03:43,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2019-12-07 17:03:43,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 148. [2019-12-07 17:03:43,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2019-12-07 17:03:43,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 203 transitions. [2019-12-07 17:03:43,609 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 203 transitions. Word has length 35 [2019-12-07 17:03:43,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:03:43,609 INFO L462 AbstractCegarLoop]: Abstraction has 148 states and 203 transitions. [2019-12-07 17:03:43,609 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 17:03:43,609 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 203 transitions. [2019-12-07 17:03:43,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-07 17:03:43,610 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:03:43,610 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:03:43,810 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 17:03:43,811 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:03:43,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:03:43,811 INFO L82 PathProgramCache]: Analyzing trace with hash 632285571, now seen corresponding path program 1 times [2019-12-07 17:03:43,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 17:03:43,812 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [669449007] [2019-12-07 17:03:43,812 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80106546-74a0-49fa-800d-e24a6a81f406/bin/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2019-12-07 17:03:43,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:03:43,933 INFO L264 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 17:03:43,934 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:03:43,942 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 17:03:43,942 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:03:43,953 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 17:03:43,954 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [669449007] [2019-12-07 17:03:43,954 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:03:43,954 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 17:03:43,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986148764] [2019-12-07 17:03:43,954 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 17:03:43,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 17:03:43,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 17:03:43,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 17:03:43,955 INFO L87 Difference]: Start difference. First operand 148 states and 203 transitions. Second operand 6 states. [2019-12-07 17:03:44,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:03:44,008 INFO L93 Difference]: Finished difference Result 447 states and 611 transitions. [2019-12-07 17:03:44,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 17:03:44,008 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2019-12-07 17:03:44,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:03:44,010 INFO L225 Difference]: With dead ends: 447 [2019-12-07 17:03:44,010 INFO L226 Difference]: Without dead ends: 306 [2019-12-07 17:03:44,011 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 17:03:44,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2019-12-07 17:03:44,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 152. [2019-12-07 17:03:44,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2019-12-07 17:03:44,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 207 transitions. [2019-12-07 17:03:44,027 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 207 transitions. Word has length 35 [2019-12-07 17:03:44,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:03:44,027 INFO L462 AbstractCegarLoop]: Abstraction has 152 states and 207 transitions. [2019-12-07 17:03:44,027 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 17:03:44,028 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 207 transitions. [2019-12-07 17:03:44,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-07 17:03:44,028 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:03:44,029 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:03:44,229 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-12-07 17:03:44,230 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:03:44,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:03:44,230 INFO L82 PathProgramCache]: Analyzing trace with hash -388782783, now seen corresponding path program 1 times [2019-12-07 17:03:44,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 17:03:44,231 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [376590647] [2019-12-07 17:03:44,231 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80106546-74a0-49fa-800d-e24a6a81f406/bin/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2019-12-07 17:03:44,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:03:44,359 INFO L264 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 17:03:44,360 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:03:44,365 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 17:03:44,365 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:03:44,372 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 17:03:44,372 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [376590647] [2019-12-07 17:03:44,373 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:03:44,373 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 17:03:44,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317417099] [2019-12-07 17:03:44,373 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 17:03:44,373 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 17:03:44,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 17:03:44,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 17:03:44,374 INFO L87 Difference]: Start difference. First operand 152 states and 207 transitions. Second operand 4 states. [2019-12-07 17:03:44,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:03:44,416 INFO L93 Difference]: Finished difference Result 508 states and 695 transitions. [2019-12-07 17:03:44,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 17:03:44,416 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2019-12-07 17:03:44,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:03:44,418 INFO L225 Difference]: With dead ends: 508 [2019-12-07 17:03:44,418 INFO L226 Difference]: Without dead ends: 363 [2019-12-07 17:03:44,418 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 66 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 17:03:44,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2019-12-07 17:03:44,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 275. [2019-12-07 17:03:44,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2019-12-07 17:03:44,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 372 transitions. [2019-12-07 17:03:44,435 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 372 transitions. Word has length 35 [2019-12-07 17:03:44,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:03:44,436 INFO L462 AbstractCegarLoop]: Abstraction has 275 states and 372 transitions. [2019-12-07 17:03:44,436 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 17:03:44,436 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 372 transitions. [2019-12-07 17:03:44,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-12-07 17:03:44,437 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:03:44,437 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:03:44,637 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2019-12-07 17:03:44,638 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:03:44,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:03:44,638 INFO L82 PathProgramCache]: Analyzing trace with hash -713441279, now seen corresponding path program 1 times [2019-12-07 17:03:44,639 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 17:03:44,639 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [503623216] [2019-12-07 17:03:44,640 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80106546-74a0-49fa-800d-e24a6a81f406/bin/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2019-12-07 17:03:44,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:03:44,753 INFO L264 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 17:03:44,754 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:03:44,772 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 17:03:44,772 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:03:44,801 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 17:03:44,801 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [503623216] [2019-12-07 17:03:44,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:03:44,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-12-07 17:03:44,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150785840] [2019-12-07 17:03:44,802 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 17:03:44,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 17:03:44,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 17:03:44,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-12-07 17:03:44,802 INFO L87 Difference]: Start difference. First operand 275 states and 372 transitions. Second operand 10 states. [2019-12-07 17:03:45,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:03:45,165 INFO L93 Difference]: Finished difference Result 1205 states and 1609 transitions. [2019-12-07 17:03:45,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-12-07 17:03:45,166 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 36 [2019-12-07 17:03:45,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:03:45,171 INFO L225 Difference]: With dead ends: 1205 [2019-12-07 17:03:45,171 INFO L226 Difference]: Without dead ends: 937 [2019-12-07 17:03:45,172 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2019-12-07 17:03:45,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2019-12-07 17:03:45,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 275. [2019-12-07 17:03:45,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2019-12-07 17:03:45,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 365 transitions. [2019-12-07 17:03:45,206 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 365 transitions. Word has length 36 [2019-12-07 17:03:45,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:03:45,206 INFO L462 AbstractCegarLoop]: Abstraction has 275 states and 365 transitions. [2019-12-07 17:03:45,206 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 17:03:45,206 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 365 transitions. [2019-12-07 17:03:45,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-12-07 17:03:45,207 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:03:45,207 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:03:45,407 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2019-12-07 17:03:45,407 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:03:45,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:03:45,408 INFO L82 PathProgramCache]: Analyzing trace with hash -838060658, now seen corresponding path program 1 times [2019-12-07 17:03:45,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 17:03:45,408 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1157077689] [2019-12-07 17:03:45,408 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80106546-74a0-49fa-800d-e24a6a81f406/bin/utaipan/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2019-12-07 17:03:45,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:03:45,510 INFO L264 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 17:03:45,512 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:03:45,520 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:03:45,520 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:03:45,525 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:03:45,526 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1157077689] [2019-12-07 17:03:45,526 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:03:45,526 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 17:03:45,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2701284] [2019-12-07 17:03:45,527 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 17:03:45,527 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 17:03:45,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 17:03:45,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:03:45,527 INFO L87 Difference]: Start difference. First operand 275 states and 365 transitions. Second operand 3 states. [2019-12-07 17:03:45,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:03:45,604 INFO L93 Difference]: Finished difference Result 431 states and 570 transitions. [2019-12-07 17:03:45,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:03:45,604 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2019-12-07 17:03:45,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:03:45,607 INFO L225 Difference]: With dead ends: 431 [2019-12-07 17:03:45,607 INFO L226 Difference]: Without dead ends: 429 [2019-12-07 17:03:45,607 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 99 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 17:03:45,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2019-12-07 17:03:45,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 315. [2019-12-07 17:03:45,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2019-12-07 17:03:45,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 424 transitions. [2019-12-07 17:03:45,652 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 424 transitions. Word has length 51 [2019-12-07 17:03:45,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:03:45,652 INFO L462 AbstractCegarLoop]: Abstraction has 315 states and 424 transitions. [2019-12-07 17:03:45,652 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 17:03:45,652 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 424 transitions. [2019-12-07 17:03:45,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-12-07 17:03:45,653 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:03:45,654 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:03:45,854 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2019-12-07 17:03:45,854 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:03:45,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:03:45,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1134302103, now seen corresponding path program 1 times [2019-12-07 17:03:45,855 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 17:03:45,855 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1952717547] [2019-12-07 17:03:45,855 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80106546-74a0-49fa-800d-e24a6a81f406/bin/utaipan/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2019-12-07 17:03:46,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:03:47,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:03:47,141 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 17:03:47,141 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 17:03:47,342 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2019-12-07 17:03:47,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 05:03:47 BoogieIcfgContainer [2019-12-07 17:03:47,480 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 17:03:47,480 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 17:03:47,480 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 17:03:47,480 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 17:03:47,481 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:03:40" (3/4) ... [2019-12-07 17:03:47,482 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 17:03:47,562 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_80106546-74a0-49fa-800d-e24a6a81f406/bin/utaipan/witness.graphml [2019-12-07 17:03:47,562 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 17:03:47,564 INFO L168 Benchmark]: Toolchain (without parser) took 8091.93 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 286.8 MB). Free memory was 947.0 MB in the beginning and 1.2 GB in the end (delta: -255.6 MB). Peak memory consumption was 31.2 MB. Max. memory is 11.5 GB. [2019-12-07 17:03:47,564 INFO L168 Benchmark]: CDTParser took 0.18 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 17:03:47,564 INFO L168 Benchmark]: CACSL2BoogieTranslator took 414.60 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -133.9 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2019-12-07 17:03:47,564 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.30 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 17:03:47,564 INFO L168 Benchmark]: Boogie Preprocessor took 37.55 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-07 17:03:47,565 INFO L168 Benchmark]: RCFGBuilder took 551.95 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 73.9 MB). Peak memory consumption was 73.9 MB. Max. memory is 11.5 GB. [2019-12-07 17:03:47,565 INFO L168 Benchmark]: TraceAbstraction took 6958.20 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 180.4 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -238.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:03:47,565 INFO L168 Benchmark]: Witness Printer took 82.21 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: 36.2 MB). Peak memory consumption was 36.2 MB. Max. memory is 11.5 GB. [2019-12-07 17:03:47,566 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 414.60 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -133.9 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.30 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 37.55 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 551.95 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 73.9 MB). Peak memory consumption was 73.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6958.20 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 180.4 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -238.7 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 82.21 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: 36.2 MB). Peak memory consumption was 36.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 946]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L310] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L507] int cleanupTimeShifts = 4; [L648] int methAndRunningLastTime ; [L757] int pumpRunning = 0; [L758] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L588] int retValue_acc ; [L589] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L637] int retValue_acc ; [L640] retValue_acc = 1 [L641] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L595] tmp = valid_product() [L597] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L653] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L689] int splverifierCounter ; [L690] int tmp ; [L691] int tmp___0 ; [L692] int tmp___1 ; [L693] int tmp___2 ; [L696] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L698] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L700] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L706] tmp = __VERIFIER_nondet_int() [L708] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L716] tmp___0 = __VERIFIER_nondet_int() [L718] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L726] tmp___2 = __VERIFIER_nondet_int() [L728] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L764] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L771] COND TRUE \read(systemActive) [L793] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L796] COND TRUE ! pumpRunning [L908] int retValue_acc ; [L909] int tmp ; [L910] int tmp___0 ; [L127] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L130] COND FALSE !(waterLevel < 2) [L134] retValue_acc = 0 [L135] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L914] tmp = isHighWaterSensorDry() [L916] COND FALSE !(\read(tmp)) [L919] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L921] retValue_acc = tmp___0 [L922] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L798] tmp = isHighWaterLevel() [L800] COND TRUE \read(tmp) [L827] int tmp ; [L852] int retValue_acc ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L856] retValue_acc = isMethaneLevelCritical() [L858] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L831] tmp = isMethaneAlarm() [L833] COND FALSE !(\read(tmp)) [L821] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L658] int tmp ; [L659] int tmp___0 ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L663] tmp = isMethaneLevelCritical() [L665] COND FALSE !(\read(tmp)) [L681] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L698] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L700] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L706] tmp = __VERIFIER_nondet_int() [L708] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L716] tmp___0 = __VERIFIER_nondet_int() [L718] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L77] COND FALSE !(\read(methaneLevelCritical)) [L80] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L726] tmp___2 = __VERIFIER_nondet_int() [L728] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L764] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L771] COND TRUE \read(systemActive) [L793] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L796] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L658] int tmp ; [L659] int tmp___0 ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L663] tmp = isMethaneLevelCritical() [L665] COND TRUE \read(tmp) [L863] int retValue_acc ; [L866] retValue_acc = pumpRunning [L867] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L667] tmp___0 = isPumpRunning() [L669] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L670] COND FALSE !(\read(methAndRunningLastTime)) [L675] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L698] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L700] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L706] tmp = __VERIFIER_nondet_int() [L708] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L716] tmp___0 = __VERIFIER_nondet_int() [L718] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L726] tmp___2 = __VERIFIER_nondet_int() [L728] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L764] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L771] COND TRUE \read(systemActive) [L793] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L796] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L658] int tmp ; [L659] int tmp___0 ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L663] tmp = isMethaneLevelCritical() [L665] COND TRUE \read(tmp) [L863] int retValue_acc ; [L866] retValue_acc = pumpRunning [L867] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L667] tmp___0 = isPumpRunning() [L669] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L670] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L946] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 93 locations, 3 error locations. Result: UNSAFE, OverallTime: 6.7s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 955 SDtfs, 1384 SDslu, 2263 SDs, 0 SdLazy, 234 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 673 GetRequests, 624 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=315occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 1614 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 402 NumberOfCodeBlocks, 402 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 644 ConstructedInterpolants, 0 QuantifiedInterpolants, 38618 SizeOfPredicates, 21 NumberOfNonLiveVariables, 2157 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 PerfectInterpolantSequences, 28/28 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...