./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product23.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_c05455cc-95ef-417a-a3fa-1af73ace768c/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c05455cc-95ef-417a-a3fa-1af73ace768c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c05455cc-95ef-417a-a3fa-1af73ace768c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c05455cc-95ef-417a-a3fa-1af73ace768c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c05455cc-95ef-417a-a3fa-1af73ace768c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c05455cc-95ef-417a-a3fa-1af73ace768c/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 eb835625053b28be1502d008fc964b9382c39b0e ...................................................................................................................................... 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_c05455cc-95ef-417a-a3fa-1af73ace768c/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c05455cc-95ef-417a-a3fa-1af73ace768c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c05455cc-95ef-417a-a3fa-1af73ace768c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c05455cc-95ef-417a-a3fa-1af73ace768c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c05455cc-95ef-417a-a3fa-1af73ace768c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c05455cc-95ef-417a-a3fa-1af73ace768c/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 eb835625053b28be1502d008fc964b9382c39b0e ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 20:39:47,446 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:39:47,447 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:39:47,455 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:39:47,455 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:39:47,455 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:39:47,456 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:39:47,458 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:39:47,459 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:39:47,459 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:39:47,460 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:39:47,461 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:39:47,461 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:39:47,462 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:39:47,462 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:39:47,463 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:39:47,464 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:39:47,464 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:39:47,466 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:39:47,467 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:39:47,469 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:39:47,470 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:39:47,471 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:39:47,471 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:39:47,473 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:39:47,474 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:39:47,474 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:39:47,474 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:39:47,474 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:39:47,475 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:39:47,475 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:39:47,476 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:39:47,476 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:39:47,477 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:39:47,478 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:39:47,478 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:39:47,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:39:47,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:39:47,479 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:39:47,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:39:47,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:39:47,481 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c05455cc-95ef-417a-a3fa-1af73ace768c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 20:39:47,494 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:39:47,494 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:39:47,495 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:39:47,495 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:39:47,495 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:39:47,495 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:39:47,495 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 20:39:47,495 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:39:47,496 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:39:47,496 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 20:39:47,496 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 20:39:47,496 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:39:47,496 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 20:39:47,497 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 20:39:47,497 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 20:39:47,497 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:39:47,498 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 20:39:47,498 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 20:39:47,498 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 20:39:47,498 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:39:47,498 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 20:39:47,498 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:39:47,499 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 20:39:47,499 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:39:47,499 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 20:39:47,499 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 20:39:47,499 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:39:47,499 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 20:39:47,500 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:39:47,500 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:39:47,500 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:39:47,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:39:47,500 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:39:47,500 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:39:47,501 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 20:39:47,501 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 20:39:47,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 20:39:47,501 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 20:39:47,501 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:39:47,501 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:39:47,502 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_c05455cc-95ef-417a-a3fa-1af73ace768c/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 -> eb835625053b28be1502d008fc964b9382c39b0e [2019-12-07 20:39:47,602 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:39:47,611 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:39:47,613 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:39:47,614 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:39:47,615 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:39:47,615 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c05455cc-95ef-417a-a3fa-1af73ace768c/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c [2019-12-07 20:39:47,653 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c05455cc-95ef-417a-a3fa-1af73ace768c/bin/utaipan/data/594c4d02c/7f1e952caebf42d29ae781f4fd9b1253/FLAG8e83d69bb [2019-12-07 20:39:48,107 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:39:48,108 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c05455cc-95ef-417a-a3fa-1af73ace768c/sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c [2019-12-07 20:39:48,117 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c05455cc-95ef-417a-a3fa-1af73ace768c/bin/utaipan/data/594c4d02c/7f1e952caebf42d29ae781f4fd9b1253/FLAG8e83d69bb [2019-12-07 20:39:48,128 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c05455cc-95ef-417a-a3fa-1af73ace768c/bin/utaipan/data/594c4d02c/7f1e952caebf42d29ae781f4fd9b1253 [2019-12-07 20:39:48,130 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:39:48,132 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:39:48,132 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:39:48,133 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:39:48,135 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:39:48,136 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:39:48" (1/1) ... [2019-12-07 20:39:48,137 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4401afc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:39:48, skipping insertion in model container [2019-12-07 20:39:48,138 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:39:48" (1/1) ... [2019-12-07 20:39:48,142 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:39:48,179 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:39:48,407 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:39:48,418 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 20:39:48,419 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@620663fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:39:48, skipping insertion in model container [2019-12-07 20:39:48,419 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:39:48,420 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 20:39:48,422 INFO L168 Benchmark]: Toolchain (without parser) took 289.38 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.9 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -144.7 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-12-07 20:39:48,422 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:39:48,423 INFO L168 Benchmark]: CACSL2BoogieTranslator took 286.99 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.9 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -150.0 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2019-12-07 20:39:48,424 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 286.99 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.9 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -150.0 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 574]: 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 20:39:49,591 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:39:49,592 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:39:49,601 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:39:49,601 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:39:49,602 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:39:49,603 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:39:49,605 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:39:49,607 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:39:49,607 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:39:49,608 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:39:49,609 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:39:49,609 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:39:49,610 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:39:49,610 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:39:49,611 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:39:49,612 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:39:49,613 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:39:49,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:39:49,616 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:39:49,617 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:39:49,618 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:39:49,619 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:39:49,620 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:39:49,622 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:39:49,622 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:39:49,622 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:39:49,623 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:39:49,623 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:39:49,623 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:39:49,624 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:39:49,624 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:39:49,625 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:39:49,626 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:39:49,627 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:39:49,627 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:39:49,627 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:39:49,628 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:39:49,628 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:39:49,629 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:39:49,629 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:39:49,630 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c05455cc-95ef-417a-a3fa-1af73ace768c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 20:39:49,643 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:39:49,643 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:39:49,644 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:39:49,644 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:39:49,644 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:39:49,645 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:39:49,645 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:39:49,645 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:39:49,645 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:39:49,646 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:39:49,646 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 20:39:49,646 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 20:39:49,646 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:39:49,646 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 20:39:49,647 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:39:49,647 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 20:39:49,647 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:39:49,647 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 20:39:49,647 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 20:39:49,648 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 20:39:49,648 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 20:39:49,648 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:39:49,648 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 20:39:49,648 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:39:49,649 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 20:39:49,649 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:39:49,649 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:39:49,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:39:49,649 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:39:49,650 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:39:49,650 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 20:39:49,650 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 20:39:49,650 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 20:39:49,650 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 20:39:49,650 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:39:49,651 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:39:49,651 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_c05455cc-95ef-417a-a3fa-1af73ace768c/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 -> eb835625053b28be1502d008fc964b9382c39b0e [2019-12-07 20:39:49,820 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:39:49,828 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:39:49,830 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:39:49,831 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:39:49,831 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:39:49,831 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c05455cc-95ef-417a-a3fa-1af73ace768c/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c [2019-12-07 20:39:49,870 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c05455cc-95ef-417a-a3fa-1af73ace768c/bin/utaipan/data/30f38188c/141eb566098c4e4c9160af90ed54b74a/FLAGbbcd5e91d [2019-12-07 20:39:50,347 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:39:50,348 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c05455cc-95ef-417a-a3fa-1af73ace768c/sv-benchmarks/c/product-lines/minepump_spec3_product23.cil.c [2019-12-07 20:39:50,357 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c05455cc-95ef-417a-a3fa-1af73ace768c/bin/utaipan/data/30f38188c/141eb566098c4e4c9160af90ed54b74a/FLAGbbcd5e91d [2019-12-07 20:39:50,852 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c05455cc-95ef-417a-a3fa-1af73ace768c/bin/utaipan/data/30f38188c/141eb566098c4e4c9160af90ed54b74a [2019-12-07 20:39:50,855 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:39:50,856 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:39:50,856 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:39:50,856 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:39:50,859 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:39:50,859 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:39:50" (1/1) ... [2019-12-07 20:39:50,861 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7afbba0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:39:50, skipping insertion in model container [2019-12-07 20:39:50,861 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:39:50" (1/1) ... [2019-12-07 20:39:50,866 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:39:50,892 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:39:51,106 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:39:51,119 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 20:39:51,125 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:39:51,169 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:39:51,173 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 20:39:51,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:39:51,240 INFO L208 MainTranslator]: Completed translation [2019-12-07 20:39:51,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:39:51 WrapperNode [2019-12-07 20:39:51,241 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:39:51,241 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 20:39:51,241 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 20:39:51,242 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 20:39:51,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:39:51" (1/1) ... [2019-12-07 20:39:51,262 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:39:51" (1/1) ... [2019-12-07 20:39:51,289 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 20:39:51,289 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 20:39:51,289 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 20:39:51,289 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 20:39:51,296 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:39:51" (1/1) ... [2019-12-07 20:39:51,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:39:51" (1/1) ... [2019-12-07 20:39:51,300 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:39:51" (1/1) ... [2019-12-07 20:39:51,300 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:39:51" (1/1) ... [2019-12-07 20:39:51,312 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:39:51" (1/1) ... [2019-12-07 20:39:51,319 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:39:51" (1/1) ... [2019-12-07 20:39:51,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:39:51" (1/1) ... [2019-12-07 20:39:51,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 20:39:51,325 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 20:39:51,325 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 20:39:51,325 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 20:39:51,326 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:39:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c05455cc-95ef-417a-a3fa-1af73ace768c/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 20:39:51,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 20:39:51,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 20:39:51,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 20:39:51,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 20:39:51,874 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 20:39:51,875 INFO L287 CfgBuilder]: Removed 166 assume(true) statements. [2019-12-07 20:39:51,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:39:51 BoogieIcfgContainer [2019-12-07 20:39:51,876 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 20:39:51,877 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 20:39:51,877 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 20:39:51,879 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 20:39:51,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 08:39:50" (1/3) ... [2019-12-07 20:39:51,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5935c6db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:39:51, skipping insertion in model container [2019-12-07 20:39:51,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:39:51" (2/3) ... [2019-12-07 20:39:51,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5935c6db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:39:51, skipping insertion in model container [2019-12-07 20:39:51,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:39:51" (3/3) ... [2019-12-07 20:39:51,881 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product23.cil.c [2019-12-07 20:39:51,888 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 20:39:51,893 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 20:39:51,901 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 20:39:51,917 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 20:39:51,917 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 20:39:51,917 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 20:39:51,917 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 20:39:51,917 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 20:39:51,917 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 20:39:51,918 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 20:39:51,918 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 20:39:51,929 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2019-12-07 20:39:51,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 20:39:51,933 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:39:51,934 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 20:39:51,934 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:39:51,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:39:51,938 INFO L82 PathProgramCache]: Analyzing trace with hash 946560340, now seen corresponding path program 1 times [2019-12-07 20:39:51,946 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:39:51,947 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1382248290] [2019-12-07 20:39:51,947 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c05455cc-95ef-417a-a3fa-1af73ace768c/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 20:39:52,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:39:52,091 INFO L264 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 20:39:52,095 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:39:52,105 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 20:39:52,106 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:39:52,109 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 20:39:52,110 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1382248290] [2019-12-07 20:39:52,110 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:39:52,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 20:39:52,111 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515344867] [2019-12-07 20:39:52,114 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 20:39:52,115 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:39:52,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 20:39:52,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 20:39:52,126 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 2 states. [2019-12-07 20:39:52,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:39:52,153 INFO L93 Difference]: Finished difference Result 220 states and 329 transitions. [2019-12-07 20:39:52,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 20:39:52,154 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-12-07 20:39:52,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:39:52,165 INFO L225 Difference]: With dead ends: 220 [2019-12-07 20:39:52,166 INFO L226 Difference]: Without dead ends: 109 [2019-12-07 20:39:52,169 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 20:39:52,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-12-07 20:39:52,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2019-12-07 20:39:52,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-12-07 20:39:52,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 156 transitions. [2019-12-07 20:39:52,206 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 156 transitions. Word has length 18 [2019-12-07 20:39:52,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:39:52,206 INFO L462 AbstractCegarLoop]: Abstraction has 109 states and 156 transitions. [2019-12-07 20:39:52,207 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 20:39:52,207 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 156 transitions. [2019-12-07 20:39:52,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 20:39:52,208 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:39:52,208 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 20:39:52,408 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 20:39:52,408 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:39:52,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:39:52,409 INFO L82 PathProgramCache]: Analyzing trace with hash 35529587, now seen corresponding path program 1 times [2019-12-07 20:39:52,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:39:52,409 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1906024774] [2019-12-07 20:39:52,410 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c05455cc-95ef-417a-a3fa-1af73ace768c/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 20:39:52,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:39:52,532 INFO L264 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 20:39:52,533 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:39:52,547 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 20:39:52,547 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:39:52,556 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 20:39:52,557 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1906024774] [2019-12-07 20:39:52,557 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:39:52,557 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 20:39:52,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102152824] [2019-12-07 20:39:52,558 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 20:39:52,558 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:39:52,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 20:39:52,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:39:52,559 INFO L87 Difference]: Start difference. First operand 109 states and 156 transitions. Second operand 4 states. [2019-12-07 20:39:52,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:39:52,570 INFO L93 Difference]: Finished difference Result 109 states and 156 transitions. [2019-12-07 20:39:52,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 20:39:52,571 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2019-12-07 20:39:52,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:39:52,572 INFO L225 Difference]: With dead ends: 109 [2019-12-07 20:39:52,572 INFO L226 Difference]: Without dead ends: 47 [2019-12-07 20:39:52,573 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 20:39:52,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-12-07 20:39:52,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2019-12-07 20:39:52,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-12-07 20:39:52,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2019-12-07 20:39:52,577 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 19 [2019-12-07 20:39:52,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:39:52,577 INFO L462 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2019-12-07 20:39:52,577 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 20:39:52,577 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2019-12-07 20:39:52,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 20:39:52,578 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:39:52,578 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 20:39:52,779 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 20:39:52,780 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:39:52,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:39:52,781 INFO L82 PathProgramCache]: Analyzing trace with hash 1149792188, now seen corresponding path program 1 times [2019-12-07 20:39:52,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:39:52,783 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [957696056] [2019-12-07 20:39:52,783 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c05455cc-95ef-417a-a3fa-1af73ace768c/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 20:39:52,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:39:52,928 INFO L264 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 20:39:52,929 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:39:52,938 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 20:39:52,938 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:39:52,945 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 20:39:52,945 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [957696056] [2019-12-07 20:39:52,945 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:39:52,946 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 20:39:52,946 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68352896] [2019-12-07 20:39:52,946 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 20:39:52,946 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:39:52,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 20:39:52,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:39:52,947 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand 4 states. [2019-12-07 20:39:52,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:39:52,965 INFO L93 Difference]: Finished difference Result 154 states and 226 transitions. [2019-12-07 20:39:52,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 20:39:52,965 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-12-07 20:39:52,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:39:52,967 INFO L225 Difference]: With dead ends: 154 [2019-12-07 20:39:52,967 INFO L226 Difference]: Without dead ends: 113 [2019-12-07 20:39:52,967 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 20:39:52,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-12-07 20:39:52,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 68. [2019-12-07 20:39:52,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-12-07 20:39:52,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 99 transitions. [2019-12-07 20:39:52,976 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 99 transitions. Word has length 24 [2019-12-07 20:39:52,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:39:52,976 INFO L462 AbstractCegarLoop]: Abstraction has 68 states and 99 transitions. [2019-12-07 20:39:52,976 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 20:39:52,976 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 99 transitions. [2019-12-07 20:39:52,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-07 20:39:52,977 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:39:52,977 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 20:39:53,178 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 20:39:53,179 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:39:53,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:39:53,180 INFO L82 PathProgramCache]: Analyzing trace with hash 190951434, now seen corresponding path program 1 times [2019-12-07 20:39:53,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:39:53,182 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2701284] [2019-12-07 20:39:53,183 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c05455cc-95ef-417a-a3fa-1af73ace768c/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 20:39:53,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:39:53,323 INFO L264 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 20:39:53,325 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:39:53,345 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 20:39:53,345 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:39:53,372 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 20:39:53,373 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2701284] [2019-12-07 20:39:53,373 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:39:53,373 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-12-07 20:39:53,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165032281] [2019-12-07 20:39:53,374 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 20:39:53,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:39:53,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 20:39:53,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 20:39:53,374 INFO L87 Difference]: Start difference. First operand 68 states and 99 transitions. Second operand 8 states. [2019-12-07 20:39:53,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:39:53,656 INFO L93 Difference]: Finished difference Result 762 states and 1164 transitions. [2019-12-07 20:39:53,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-12-07 20:39:53,657 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2019-12-07 20:39:53,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:39:53,661 INFO L225 Difference]: With dead ends: 762 [2019-12-07 20:39:53,661 INFO L226 Difference]: Without dead ends: 700 [2019-12-07 20:39:53,662 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2019-12-07 20:39:53,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2019-12-07 20:39:53,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 178. [2019-12-07 20:39:53,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2019-12-07 20:39:53,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 259 transitions. [2019-12-07 20:39:53,687 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 259 transitions. Word has length 26 [2019-12-07 20:39:53,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:39:53,687 INFO L462 AbstractCegarLoop]: Abstraction has 178 states and 259 transitions. [2019-12-07 20:39:53,687 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 20:39:53,687 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 259 transitions. [2019-12-07 20:39:53,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-07 20:39:53,689 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:39:53,689 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 20:39:53,889 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 20:39:53,890 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:39:53,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:39:53,891 INFO L82 PathProgramCache]: Analyzing trace with hash -418085112, now seen corresponding path program 1 times [2019-12-07 20:39:53,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:39:53,893 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1827864282] [2019-12-07 20:39:53,894 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c05455cc-95ef-417a-a3fa-1af73ace768c/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 20:39:54,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 20:39:55,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 20:39:55,352 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 20:39:55,352 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 20:39:55,553 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 20:39:55,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 08:39:55 BoogieIcfgContainer [2019-12-07 20:39:55,634 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 20:39:55,634 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 20:39:55,634 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 20:39:55,634 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 20:39:55,634 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:39:51" (3/4) ... [2019-12-07 20:39:55,636 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 20:39:55,694 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c05455cc-95ef-417a-a3fa-1af73ace768c/bin/utaipan/witness.graphml [2019-12-07 20:39:55,694 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 20:39:55,696 INFO L168 Benchmark]: Toolchain (without parser) took 4839.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 199.8 MB). Free memory was 952.4 MB in the beginning and 1.2 GB in the end (delta: -207.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:39:55,696 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:39:55,696 INFO L168 Benchmark]: CACSL2BoogieTranslator took 384.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -155.1 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-12-07 20:39:55,697 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.84 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-12-07 20:39:55,697 INFO L168 Benchmark]: Boogie Preprocessor took 35.46 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-12-07 20:39:55,698 INFO L168 Benchmark]: RCFGBuilder took 550.85 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: 64.2 MB). Peak memory consumption was 64.2 MB. Max. memory is 11.5 GB. [2019-12-07 20:39:55,698 INFO L168 Benchmark]: TraceAbstraction took 3757.09 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 72.4 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -156.9 MB). Peak memory consumption was 226.4 MB. Max. memory is 11.5 GB. [2019-12-07 20:39:55,698 INFO L168 Benchmark]: Witness Printer took 60.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. [2019-12-07 20:39:55,700 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 384.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -155.1 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.84 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.46 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 550.85 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: 64.2 MB). Peak memory consumption was 64.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3757.09 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 72.4 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -156.9 MB). Peak memory consumption was 226.4 MB. Max. memory is 11.5 GB. * Witness Printer took 60.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 541]: 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; [L177] int pumpRunning = 0; [L178] int systemActive = 1; [L438] int cleanupTimeShifts = 4; [L715] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L514] int retValue_acc ; [L515] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L938] int retValue_acc ; [L941] retValue_acc = 1 [L942] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L521] tmp = valid_product() [L523] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L372] int splverifierCounter ; [L373] int tmp ; [L374] int tmp___0 ; [L375] int tmp___1 ; [L376] int tmp___2 ; [L379] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L381] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L383] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L389] tmp = __VERIFIER_nondet_int() [L391] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L399] tmp___0 = __VERIFIER_nondet_int() [L401] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L409] tmp___2 = __VERIFIER_nondet_int() [L411] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L184] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L191] COND TRUE \read(systemActive) [L239] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L242] COND FALSE !(\read(pumpRunning)) [L213] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L216] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L139] int tmp ; [L140] int tmp___0 ; [L141] int tmp___1 ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L145] tmp = isMethaneLevelCritical() [L147] COND FALSE !(\read(tmp)) [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L151] tmp___0 = getWaterLevel() [L153] COND TRUE tmp___0 == 2 [L291] int retValue_acc ; [L294] retValue_acc = pumpRunning [L295] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L155] tmp___1 = isPumpRunning() [L157] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L541] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 113 locations, 3 error locations. Result: UNSAFE, OverallTime: 3.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 404 SDtfs, 858 SDslu, 991 SDs, 0 SdLazy, 143 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 175 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=178occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 567 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 166 ConstructedInterpolants, 0 QuantifiedInterpolants, 10843 SizeOfPredicates, 6 NumberOfNonLiveVariables, 735 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...