./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product40.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_2eeb521c-bef7-430e-9c70-6545baf785a1/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2eeb521c-bef7-430e-9c70-6545baf785a1/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2eeb521c-bef7-430e-9c70-6545baf785a1/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2eeb521c-bef7-430e-9c70-6545baf785a1/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2eeb521c-bef7-430e-9c70-6545baf785a1/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2eeb521c-bef7-430e-9c70-6545baf785a1/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 6b0dd49774129de8b6944c8beb9911dd98f5e936 ...................................................................................................................................... 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_2eeb521c-bef7-430e-9c70-6545baf785a1/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2eeb521c-bef7-430e-9c70-6545baf785a1/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2eeb521c-bef7-430e-9c70-6545baf785a1/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2eeb521c-bef7-430e-9c70-6545baf785a1/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2eeb521c-bef7-430e-9c70-6545baf785a1/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2eeb521c-bef7-430e-9c70-6545baf785a1/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 6b0dd49774129de8b6944c8beb9911dd98f5e936 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 11:34:01,485 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 11:34:01,487 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 11:34:01,497 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 11:34:01,498 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:34:01,499 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:34:01,500 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:34:01,502 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:34:01,503 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:34:01,504 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:34:01,505 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:34:01,506 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:34:01,507 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:34:01,507 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:34:01,508 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:34:01,509 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:34:01,510 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:34:01,511 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:34:01,513 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:34:01,515 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:34:01,516 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:34:01,517 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:34:01,518 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:34:01,518 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:34:01,520 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:34:01,521 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:34:01,521 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:34:01,522 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:34:01,522 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:34:01,523 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:34:01,523 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:34:01,524 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:34:01,524 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:34:01,525 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:34:01,526 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:34:01,526 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:34:01,526 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:34:01,526 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:34:01,527 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:34:01,527 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:34:01,528 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:34:01,529 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2eeb521c-bef7-430e-9c70-6545baf785a1/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 11:34:01,538 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:34:01,538 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:34:01,539 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 11:34:01,539 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 11:34:01,539 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 11:34:01,539 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 11:34:01,539 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 11:34:01,540 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 11:34:01,540 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 11:34:01,540 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 11:34:01,540 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 11:34:01,540 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 11:34:01,540 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 11:34:01,540 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 11:34:01,540 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 11:34:01,541 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:34:01,541 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 11:34:01,541 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 11:34:01,541 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 11:34:01,542 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:34:01,542 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 11:34:01,542 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 11:34:01,542 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 11:34:01,542 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 11:34:01,542 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 11:34:01,542 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 11:34:01,543 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:34:01,543 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 11:34:01,543 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:34:01,543 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 11:34:01,543 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 11:34:01,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:34:01,544 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:34:01,544 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 11:34:01,544 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 11:34:01,544 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 11:34:01,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 11:34:01,544 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 11:34:01,544 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:34:01,545 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 11:34:01,545 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_2eeb521c-bef7-430e-9c70-6545baf785a1/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 -> 6b0dd49774129de8b6944c8beb9911dd98f5e936 [2019-12-07 11:34:01,644 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:34:01,654 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:34:01,657 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:34:01,658 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:34:01,659 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:34:01,659 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2eeb521c-bef7-430e-9c70-6545baf785a1/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c [2019-12-07 11:34:01,707 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2eeb521c-bef7-430e-9c70-6545baf785a1/bin/utaipan/data/fd35368fb/36e8cf97bd844fcba02f37b85f0466cb/FLAG6d5f677b0 [2019-12-07 11:34:02,071 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:34:02,072 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2eeb521c-bef7-430e-9c70-6545baf785a1/sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c [2019-12-07 11:34:02,080 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2eeb521c-bef7-430e-9c70-6545baf785a1/bin/utaipan/data/fd35368fb/36e8cf97bd844fcba02f37b85f0466cb/FLAG6d5f677b0 [2019-12-07 11:34:02,089 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2eeb521c-bef7-430e-9c70-6545baf785a1/bin/utaipan/data/fd35368fb/36e8cf97bd844fcba02f37b85f0466cb [2019-12-07 11:34:02,091 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:34:02,091 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 11:34:02,092 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:34:02,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:34:02,094 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:34:02,095 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:34:02" (1/1) ... [2019-12-07 11:34:02,096 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47b5914b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:34:02, skipping insertion in model container [2019-12-07 11:34:02,097 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:34:02" (1/1) ... [2019-12-07 11:34:02,101 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:34:02,127 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:34:02,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:34:02,340 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2019-12-07 11:34:02,340 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1acd5297 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:34:02, skipping insertion in model container [2019-12-07 11:34:02,340 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:34:02,341 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 11:34:02,342 INFO L168 Benchmark]: Toolchain (without parser) took 250.12 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 936.7 MB in the beginning and 1.1 GB in the end (delta: -149.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-07 11:34:02,343 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 954.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:34:02,343 INFO L168 Benchmark]: CACSL2BoogieTranslator took 248.41 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -151.1 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. [2019-12-07 11:34:02,344 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 954.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 248.41 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -151.1 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 625]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 11:34:03,475 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 11:34:03,476 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 11:34:03,484 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 11:34:03,484 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:34:03,485 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:34:03,486 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:34:03,487 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:34:03,489 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:34:03,489 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:34:03,490 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:34:03,491 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:34:03,491 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:34:03,491 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:34:03,492 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:34:03,493 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:34:03,493 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:34:03,494 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:34:03,496 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:34:03,497 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:34:03,499 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:34:03,499 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:34:03,500 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:34:03,501 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:34:03,503 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:34:03,503 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:34:03,503 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:34:03,504 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:34:03,504 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:34:03,505 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:34:03,505 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:34:03,505 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:34:03,506 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:34:03,506 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:34:03,507 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:34:03,507 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:34:03,507 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:34:03,508 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:34:03,508 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:34:03,508 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:34:03,509 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:34:03,509 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2eeb521c-bef7-430e-9c70-6545baf785a1/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 11:34:03,519 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:34:03,520 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:34:03,520 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 11:34:03,520 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 11:34:03,520 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 11:34:03,521 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 11:34:03,521 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 11:34:03,521 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 11:34:03,521 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 11:34:03,521 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:34:03,521 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 11:34:03,522 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 11:34:03,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:34:03,522 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 11:34:03,522 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 11:34:03,522 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 11:34:03,522 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 11:34:03,522 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 11:34:03,523 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 11:34:03,523 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 11:34:03,523 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 11:34:03,523 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:34:03,523 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 11:34:03,523 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:34:03,523 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 11:34:03,523 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 11:34:03,524 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 11:34:03,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:34:03,524 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:34:03,524 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 11:34:03,524 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 11:34:03,524 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 11:34:03,524 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 11:34:03,524 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 11:34:03,525 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:34:03,525 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 11:34:03,525 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_2eeb521c-bef7-430e-9c70-6545baf785a1/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 -> 6b0dd49774129de8b6944c8beb9911dd98f5e936 [2019-12-07 11:34:03,682 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:34:03,692 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:34:03,695 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:34:03,696 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:34:03,697 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:34:03,697 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2eeb521c-bef7-430e-9c70-6545baf785a1/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c [2019-12-07 11:34:03,742 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2eeb521c-bef7-430e-9c70-6545baf785a1/bin/utaipan/data/105f65eff/466fb1b4e73a41138a4730f6daf4e969/FLAGf0d2444f3 [2019-12-07 11:34:04,180 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:34:04,181 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2eeb521c-bef7-430e-9c70-6545baf785a1/sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c [2019-12-07 11:34:04,189 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2eeb521c-bef7-430e-9c70-6545baf785a1/bin/utaipan/data/105f65eff/466fb1b4e73a41138a4730f6daf4e969/FLAGf0d2444f3 [2019-12-07 11:34:04,525 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2eeb521c-bef7-430e-9c70-6545baf785a1/bin/utaipan/data/105f65eff/466fb1b4e73a41138a4730f6daf4e969 [2019-12-07 11:34:04,527 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:34:04,528 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 11:34:04,528 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:34:04,528 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:34:04,530 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:34:04,531 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:34:04" (1/1) ... [2019-12-07 11:34:04,533 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9aca9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:34:04, skipping insertion in model container [2019-12-07 11:34:04,533 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:34:04" (1/1) ... [2019-12-07 11:34:04,537 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:34:04,564 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:34:04,742 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:34:04,792 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 11:34:04,797 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:34:04,837 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:34:04,841 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 11:34:04,883 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:34:04,907 INFO L208 MainTranslator]: Completed translation [2019-12-07 11:34:04,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:34:04 WrapperNode [2019-12-07 11:34:04,908 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:34:04,908 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 11:34:04,908 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 11:34:04,908 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 11:34:04,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:34:04" (1/1) ... [2019-12-07 11:34:04,927 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:34:04" (1/1) ... [2019-12-07 11:34:04,953 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 11:34:04,953 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 11:34:04,953 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 11:34:04,953 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 11:34:04,960 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:34:04" (1/1) ... [2019-12-07 11:34:04,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:34:04" (1/1) ... [2019-12-07 11:34:04,964 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:34:04" (1/1) ... [2019-12-07 11:34:04,964 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:34:04" (1/1) ... [2019-12-07 11:34:04,974 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:34:04" (1/1) ... [2019-12-07 11:34:04,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:34:04" (1/1) ... [2019-12-07 11:34:04,982 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:34:04" (1/1) ... [2019-12-07 11:34:04,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 11:34:04,986 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 11:34:04,986 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 11:34:04,986 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 11:34:04,986 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:34:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2eeb521c-bef7-430e-9c70-6545baf785a1/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:34:05,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 11:34:05,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 11:34:05,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 11:34:05,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 11:34:05,553 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 11:34:05,553 INFO L287 CfgBuilder]: Removed 168 assume(true) statements. [2019-12-07 11:34:05,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:34:05 BoogieIcfgContainer [2019-12-07 11:34:05,554 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 11:34:05,556 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 11:34:05,556 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 11:34:05,558 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 11:34:05,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 11:34:04" (1/3) ... [2019-12-07 11:34:05,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cdba11e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:34:05, skipping insertion in model container [2019-12-07 11:34:05,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:34:04" (2/3) ... [2019-12-07 11:34:05,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cdba11e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:34:05, skipping insertion in model container [2019-12-07 11:34:05,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:34:05" (3/3) ... [2019-12-07 11:34:05,561 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product40.cil.c [2019-12-07 11:34:05,570 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 11:34:05,577 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 11:34:05,587 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 11:34:05,603 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 11:34:05,603 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 11:34:05,603 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 11:34:05,603 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 11:34:05,603 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 11:34:05,603 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 11:34:05,603 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 11:34:05,604 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 11:34:05,615 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states. [2019-12-07 11:34:05,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 11:34:05,621 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:34:05,622 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:34:05,622 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:34:05,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:34:05,626 INFO L82 PathProgramCache]: Analyzing trace with hash 228795593, now seen corresponding path program 1 times [2019-12-07 11:34:05,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:34:05,635 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [155350089] [2019-12-07 11:34:05,635 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2eeb521c-bef7-430e-9c70-6545baf785a1/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 11:34:05,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:34:05,779 INFO L264 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 11:34:05,782 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:34:05,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:34:05,794 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:34:05,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:34:05,798 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [155350089] [2019-12-07 11:34:05,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:34:05,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 11:34:05,800 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565908902] [2019-12-07 11:34:05,803 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 11:34:05,803 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:34:05,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 11:34:05,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 11:34:05,814 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 2 states. [2019-12-07 11:34:05,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:34:05,841 INFO L93 Difference]: Finished difference Result 232 states and 353 transitions. [2019-12-07 11:34:05,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 11:34:05,842 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-12-07 11:34:05,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:34:05,854 INFO L225 Difference]: With dead ends: 232 [2019-12-07 11:34:05,854 INFO L226 Difference]: Without dead ends: 115 [2019-12-07 11:34:05,857 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 11:34:05,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-12-07 11:34:05,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2019-12-07 11:34:05,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-12-07 11:34:05,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 168 transitions. [2019-12-07 11:34:05,894 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 168 transitions. Word has length 18 [2019-12-07 11:34:05,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:34:05,894 INFO L462 AbstractCegarLoop]: Abstraction has 115 states and 168 transitions. [2019-12-07 11:34:05,894 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 11:34:05,894 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 168 transitions. [2019-12-07 11:34:05,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 11:34:05,895 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:34:05,895 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:34:06,096 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 11:34:06,096 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:34:06,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:34:06,097 INFO L82 PathProgramCache]: Analyzing trace with hash 303686568, now seen corresponding path program 1 times [2019-12-07 11:34:06,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:34:06,097 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [234305128] [2019-12-07 11:34:06,098 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2eeb521c-bef7-430e-9c70-6545baf785a1/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 11:34:06,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:34:06,205 INFO L264 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 11:34:06,206 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:34:06,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:34:06,219 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:34:06,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:34:06,227 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [234305128] [2019-12-07 11:34:06,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:34:06,227 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 11:34:06,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859044797] [2019-12-07 11:34:06,229 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 11:34:06,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:34:06,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 11:34:06,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:34:06,229 INFO L87 Difference]: Start difference. First operand 115 states and 168 transitions. Second operand 4 states. [2019-12-07 11:34:06,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:34:06,241 INFO L93 Difference]: Finished difference Result 115 states and 168 transitions. [2019-12-07 11:34:06,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 11:34:06,242 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2019-12-07 11:34:06,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:34:06,242 INFO L225 Difference]: With dead ends: 115 [2019-12-07 11:34:06,242 INFO L226 Difference]: Without dead ends: 49 [2019-12-07 11:34:06,243 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:34:06,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-12-07 11:34:06,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2019-12-07 11:34:06,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-12-07 11:34:06,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 71 transitions. [2019-12-07 11:34:06,248 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 71 transitions. Word has length 19 [2019-12-07 11:34:06,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:34:06,248 INFO L462 AbstractCegarLoop]: Abstraction has 49 states and 71 transitions. [2019-12-07 11:34:06,248 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 11:34:06,248 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions. [2019-12-07 11:34:06,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 11:34:06,249 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:34:06,249 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:34:06,449 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 11:34:06,450 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:34:06,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:34:06,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1740217190, now seen corresponding path program 1 times [2019-12-07 11:34:06,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:34:06,451 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [971494932] [2019-12-07 11:34:06,451 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2eeb521c-bef7-430e-9c70-6545baf785a1/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 11:34:06,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:34:06,568 INFO L264 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 11:34:06,570 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:34:06,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:34:06,577 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:34:06,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:34:06,583 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [971494932] [2019-12-07 11:34:06,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:34:06,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 11:34:06,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983847396] [2019-12-07 11:34:06,584 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 11:34:06,584 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:34:06,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 11:34:06,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:34:06,585 INFO L87 Difference]: Start difference. First operand 49 states and 71 transitions. Second operand 4 states. [2019-12-07 11:34:06,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:34:06,633 INFO L93 Difference]: Finished difference Result 160 states and 238 transitions. [2019-12-07 11:34:06,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 11:34:06,634 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-12-07 11:34:06,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:34:06,635 INFO L225 Difference]: With dead ends: 160 [2019-12-07 11:34:06,636 INFO L226 Difference]: Without dead ends: 117 [2019-12-07 11:34:06,636 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:34:06,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2019-12-07 11:34:06,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 70. [2019-12-07 11:34:06,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-12-07 11:34:06,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 103 transitions. [2019-12-07 11:34:06,648 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 103 transitions. Word has length 24 [2019-12-07 11:34:06,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:34:06,648 INFO L462 AbstractCegarLoop]: Abstraction has 70 states and 103 transitions. [2019-12-07 11:34:06,648 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 11:34:06,649 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 103 transitions. [2019-12-07 11:34:06,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-07 11:34:06,650 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:34:06,650 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:34:06,850 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 11:34:06,851 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:34:06,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:34:06,852 INFO L82 PathProgramCache]: Analyzing trace with hash -1869059729, now seen corresponding path program 1 times [2019-12-07 11:34:06,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:34:06,854 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [450599253] [2019-12-07 11:34:06,855 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2eeb521c-bef7-430e-9c70-6545baf785a1/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-12-07 11:34:07,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:34:07,076 INFO L264 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 11:34:07,077 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:34:07,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:34:07,083 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:34:07,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:34:07,085 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [450599253] [2019-12-07 11:34:07,086 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:34:07,086 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 11:34:07,086 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569193678] [2019-12-07 11:34:07,086 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 11:34:07,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:34:07,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 11:34:07,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 11:34:07,087 INFO L87 Difference]: Start difference. First operand 70 states and 103 transitions. Second operand 3 states. [2019-12-07 11:34:07,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:34:07,146 INFO L93 Difference]: Finished difference Result 157 states and 233 transitions. [2019-12-07 11:34:07,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 11:34:07,147 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-12-07 11:34:07,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:34:07,148 INFO L225 Difference]: With dead ends: 157 [2019-12-07 11:34:07,148 INFO L226 Difference]: Without dead ends: 93 [2019-12-07 11:34:07,149 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 11:34:07,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2019-12-07 11:34:07,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2019-12-07 11:34:07,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-12-07 11:34:07,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 130 transitions. [2019-12-07 11:34:07,161 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 130 transitions. Word has length 26 [2019-12-07 11:34:07,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:34:07,161 INFO L462 AbstractCegarLoop]: Abstraction has 91 states and 130 transitions. [2019-12-07 11:34:07,161 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 11:34:07,161 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 130 transitions. [2019-12-07 11:34:07,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-07 11:34:07,163 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:34:07,163 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:34:07,364 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 11:34:07,365 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:34:07,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:34:07,366 INFO L82 PathProgramCache]: Analyzing trace with hash 1176876603, now seen corresponding path program 1 times [2019-12-07 11:34:07,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:34:07,368 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1850258797] [2019-12-07 11:34:07,368 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2eeb521c-bef7-430e-9c70-6545baf785a1/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-12-07 11:34:07,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:34:07,511 INFO L264 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 11:34:07,512 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:34:07,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:34:07,525 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:34:07,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:34:07,548 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1850258797] [2019-12-07 11:34:07,548 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:34:07,548 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-12-07 11:34:07,548 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315233472] [2019-12-07 11:34:07,549 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 11:34:07,549 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:34:07,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 11:34:07,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 11:34:07,549 INFO L87 Difference]: Start difference. First operand 91 states and 130 transitions. Second operand 8 states. [2019-12-07 11:34:07,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:34:07,890 INFO L93 Difference]: Finished difference Result 986 states and 1451 transitions. [2019-12-07 11:34:07,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-12-07 11:34:07,890 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2019-12-07 11:34:07,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:34:07,894 INFO L225 Difference]: With dead ends: 986 [2019-12-07 11:34:07,894 INFO L226 Difference]: Without dead ends: 901 [2019-12-07 11:34:07,896 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2019-12-07 11:34:07,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2019-12-07 11:34:07,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 232. [2019-12-07 11:34:07,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2019-12-07 11:34:07,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 327 transitions. [2019-12-07 11:34:07,921 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 327 transitions. Word has length 27 [2019-12-07 11:34:07,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:34:07,921 INFO L462 AbstractCegarLoop]: Abstraction has 232 states and 327 transitions. [2019-12-07 11:34:07,921 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 11:34:07,922 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 327 transitions. [2019-12-07 11:34:07,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-07 11:34:07,922 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:34:07,923 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:34:08,123 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 11:34:08,124 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:34:08,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:34:08,125 INFO L82 PathProgramCache]: Analyzing trace with hash -523387139, now seen corresponding path program 1 times [2019-12-07 11:34:08,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:34:08,126 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2104908363] [2019-12-07 11:34:08,127 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2eeb521c-bef7-430e-9c70-6545baf785a1/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2019-12-07 11:34:09,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:34:09,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:34:09,951 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 11:34:09,952 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 11:34:10,152 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 11:34:10,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 11:34:10 BoogieIcfgContainer [2019-12-07 11:34:10,209 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 11:34:10,209 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 11:34:10,209 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 11:34:10,209 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 11:34:10,210 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:34:05" (3/4) ... [2019-12-07 11:34:10,212 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 11:34:10,281 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2eeb521c-bef7-430e-9c70-6545baf785a1/bin/utaipan/witness.graphml [2019-12-07 11:34:10,281 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 11:34:10,283 INFO L168 Benchmark]: Toolchain (without parser) took 5754.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 202.4 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -171.3 MB). Peak memory consumption was 31.1 MB. Max. memory is 11.5 GB. [2019-12-07 11:34:10,283 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:34:10,284 INFO L168 Benchmark]: CACSL2BoogieTranslator took 379.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -144.3 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. [2019-12-07 11:34:10,284 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 11:34:10,284 INFO L168 Benchmark]: Boogie Preprocessor took 32.03 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:34:10,284 INFO L168 Benchmark]: RCFGBuilder took 569.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 72.8 MB). Peak memory consumption was 72.8 MB. Max. memory is 11.5 GB. [2019-12-07 11:34:10,285 INFO L168 Benchmark]: TraceAbstraction took 4653.08 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 79.2 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -114.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:34:10,285 INFO L168 Benchmark]: Witness Printer took 72.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 11.5 GB. [2019-12-07 11:34:10,287 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 379.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -144.3 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.03 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 569.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 72.8 MB). Peak memory consumption was 72.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4653.08 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 79.2 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -114.3 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 72.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 221]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L229] int waterLevel = 1; [L230] int methaneLevelCritical = 0; [L327] int pumpRunning = 0; [L328] int systemActive = 1; [L766] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L121] int retValue_acc ; [L122] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L170] int retValue_acc ; [L173] retValue_acc = 1 [L174] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L529] int splverifierCounter ; [L530] int tmp ; [L531] int tmp___0 ; [L532] int tmp___1 ; [L533] int tmp___2 ; [L536] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L538] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L540] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L546] tmp = __VERIFIER_nondet_int() [L548] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L247] COND TRUE waterLevel < 2 [L248] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L556] tmp___0 = __VERIFIER_nondet_int() [L558] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L566] tmp___2 = __VERIFIER_nondet_int() [L568] COND FALSE !(\read(tmp___2)) [L574] tmp___1 = __VERIFIER_nondet_int() [L576] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L508] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L515] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L334] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L341] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L184] int tmp ; [L185] int tmp___0 ; [L186] int tmp___1 ; [L268] int retValue_acc ; [L271] retValue_acc = methaneLevelCritical [L272] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L190] tmp = isMethaneLevelCritical() [L192] COND FALSE !(\read(tmp)) [L300] int retValue_acc ; [L303] retValue_acc = waterLevel [L304] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L196] tmp___0 = getWaterLevel() [L198] COND TRUE tmp___0 == 2 [L441] int retValue_acc ; [L444] retValue_acc = pumpRunning [L445] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L200] tmp___1 = isPumpRunning() [L202] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L221] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 119 locations, 3 error locations. Result: UNSAFE, OverallTime: 4.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 492 SDtfs, 1207 SDslu, 931 SDs, 0 SdLazy, 171 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 227 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=232occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 718 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 218 ConstructedInterpolants, 0 QuantifiedInterpolants, 10826 SizeOfPredicates, 6 NumberOfNonLiveVariables, 927 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...