./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product44.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_f81bf37e-d14d-47db-b049-35f599a6da0b/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f81bf37e-d14d-47db-b049-35f599a6da0b/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f81bf37e-d14d-47db-b049-35f599a6da0b/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f81bf37e-d14d-47db-b049-35f599a6da0b/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f81bf37e-d14d-47db-b049-35f599a6da0b/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f81bf37e-d14d-47db-b049-35f599a6da0b/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 1e304dec1a19556a559249c7b1ef76290bc8b678 ...................................................................................................................................... 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_f81bf37e-d14d-47db-b049-35f599a6da0b/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f81bf37e-d14d-47db-b049-35f599a6da0b/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f81bf37e-d14d-47db-b049-35f599a6da0b/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f81bf37e-d14d-47db-b049-35f599a6da0b/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f81bf37e-d14d-47db-b049-35f599a6da0b/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f81bf37e-d14d-47db-b049-35f599a6da0b/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 1e304dec1a19556a559249c7b1ef76290bc8b678 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 15:27:36,791 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:27:36,792 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:27:36,800 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:27:36,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:27:36,801 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:27:36,802 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:27:36,803 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:27:36,804 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:27:36,805 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:27:36,806 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:27:36,806 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:27:36,807 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:27:36,807 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:27:36,808 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:27:36,809 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:27:36,809 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:27:36,810 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:27:36,811 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:27:36,813 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:27:36,814 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:27:36,814 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:27:36,815 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:27:36,816 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:27:36,817 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:27:36,817 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:27:36,818 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:27:36,818 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:27:36,818 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:27:36,819 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:27:36,819 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:27:36,819 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:27:36,820 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:27:36,820 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:27:36,821 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:27:36,821 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:27:36,821 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:27:36,821 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:27:36,822 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:27:36,822 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:27:36,822 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:27:36,823 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f81bf37e-d14d-47db-b049-35f599a6da0b/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 15:27:36,833 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:27:36,833 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:27:36,834 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 15:27:36,834 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 15:27:36,834 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 15:27:36,834 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 15:27:36,834 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 15:27:36,834 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 15:27:36,834 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 15:27:36,835 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 15:27:36,835 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 15:27:36,835 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 15:27:36,835 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 15:27:36,835 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 15:27:36,835 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 15:27:36,836 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:27:36,836 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:27:36,836 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 15:27:36,836 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:27:36,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:27:36,836 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 15:27:36,836 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:27:36,837 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 15:27:36,837 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 15:27:36,837 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:27:36,837 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 15:27:36,837 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:27:36,837 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 15:27:36,837 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:27:36,837 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:27:36,837 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:27:36,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:27:36,838 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:27:36,838 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:27:36,838 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 15:27:36,838 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 15:27:36,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 15:27:36,838 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 15:27:36,838 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:27:36,838 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 15:27:36,838 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_f81bf37e-d14d-47db-b049-35f599a6da0b/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 -> 1e304dec1a19556a559249c7b1ef76290bc8b678 [2019-12-07 15:27:36,936 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:27:36,944 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:27:36,946 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:27:36,947 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:27:36,947 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:27:36,948 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f81bf37e-d14d-47db-b049-35f599a6da0b/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c [2019-12-07 15:27:36,984 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f81bf37e-d14d-47db-b049-35f599a6da0b/bin/utaipan/data/0b1709540/1690e320d81140abb626ca9c220ce5fd/FLAGda8764e49 [2019-12-07 15:27:37,444 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:27:37,444 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f81bf37e-d14d-47db-b049-35f599a6da0b/sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c [2019-12-07 15:27:37,453 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f81bf37e-d14d-47db-b049-35f599a6da0b/bin/utaipan/data/0b1709540/1690e320d81140abb626ca9c220ce5fd/FLAGda8764e49 [2019-12-07 15:27:37,968 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f81bf37e-d14d-47db-b049-35f599a6da0b/bin/utaipan/data/0b1709540/1690e320d81140abb626ca9c220ce5fd [2019-12-07 15:27:37,970 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:27:37,971 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:27:37,972 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:27:37,972 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:27:37,974 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:27:37,975 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:27:37" (1/1) ... [2019-12-07 15:27:37,977 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48db4d69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:27:37, skipping insertion in model container [2019-12-07 15:27:37,977 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:27:37" (1/1) ... [2019-12-07 15:27:37,983 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:27:38,018 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:27:38,225 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:27:38,234 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 15:27:38,234 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@221939d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:27:38, skipping insertion in model container [2019-12-07 15:27:38,234 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:27:38,235 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 15:27:38,237 INFO L168 Benchmark]: Toolchain (without parser) took 264.89 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.1 MB). Free memory was 945.1 MB in the beginning and 1.1 GB in the end (delta: -143.3 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-12-07 15:27:38,237 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:27:38,238 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.1 MB). Free memory was 945.1 MB in the beginning and 1.1 GB in the end (delta: -143.3 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-12-07 15:27:38,240 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 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 262.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.1 MB). Free memory was 945.1 MB in the beginning and 1.1 GB in the end (delta: -143.3 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 624]: 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 15:27:39,367 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:27:39,368 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:27:39,376 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:27:39,376 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:27:39,377 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:27:39,378 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:27:39,379 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:27:39,381 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:27:39,381 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:27:39,382 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:27:39,383 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:27:39,383 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:27:39,384 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:27:39,384 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:27:39,385 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:27:39,386 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:27:39,386 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:27:39,388 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:27:39,389 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:27:39,390 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:27:39,391 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:27:39,392 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:27:39,392 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:27:39,394 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:27:39,394 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:27:39,395 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:27:39,395 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:27:39,395 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:27:39,396 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:27:39,396 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:27:39,397 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:27:39,397 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:27:39,398 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:27:39,398 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:27:39,399 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:27:39,399 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:27:39,399 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:27:39,399 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:27:39,400 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:27:39,401 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:27:39,401 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f81bf37e-d14d-47db-b049-35f599a6da0b/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 15:27:39,411 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:27:39,411 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:27:39,412 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 15:27:39,412 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 15:27:39,412 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 15:27:39,412 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 15:27:39,412 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 15:27:39,413 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 15:27:39,413 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 15:27:39,413 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:27:39,413 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:27:39,413 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:27:39,414 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:27:39,414 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 15:27:39,414 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:27:39,414 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 15:27:39,414 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 15:27:39,414 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 15:27:39,414 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 15:27:39,415 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:27:39,415 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 15:27:39,415 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:27:39,415 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 15:27:39,415 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:27:39,415 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 15:27:39,415 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:27:39,416 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:27:39,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:27:39,416 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:27:39,416 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:27:39,416 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 15:27:39,416 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 15:27:39,416 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 15:27:39,417 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 15:27:39,417 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:27:39,417 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 15:27:39,417 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_f81bf37e-d14d-47db-b049-35f599a6da0b/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 -> 1e304dec1a19556a559249c7b1ef76290bc8b678 [2019-12-07 15:27:39,582 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:27:39,589 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:27:39,592 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:27:39,593 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:27:39,593 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:27:39,593 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f81bf37e-d14d-47db-b049-35f599a6da0b/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c [2019-12-07 15:27:39,631 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f81bf37e-d14d-47db-b049-35f599a6da0b/bin/utaipan/data/53293ca1b/0e4f077777db4ae7806b98f553af6fda/FLAG059dc4e86 [2019-12-07 15:27:40,006 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:27:40,007 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f81bf37e-d14d-47db-b049-35f599a6da0b/sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c [2019-12-07 15:27:40,016 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f81bf37e-d14d-47db-b049-35f599a6da0b/bin/utaipan/data/53293ca1b/0e4f077777db4ae7806b98f553af6fda/FLAG059dc4e86 [2019-12-07 15:27:40,027 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f81bf37e-d14d-47db-b049-35f599a6da0b/bin/utaipan/data/53293ca1b/0e4f077777db4ae7806b98f553af6fda [2019-12-07 15:27:40,030 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:27:40,031 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:27:40,032 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:27:40,032 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:27:40,034 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:27:40,034 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:27:40" (1/1) ... [2019-12-07 15:27:40,036 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6530e826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:27:40, skipping insertion in model container [2019-12-07 15:27:40,037 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:27:40" (1/1) ... [2019-12-07 15:27:40,042 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:27:40,069 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:27:40,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:27:40,296 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 15:27:40,301 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:27:40,343 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:27:40,347 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:27:40,388 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:27:40,411 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:27:40,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:27:40 WrapperNode [2019-12-07 15:27:40,412 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:27:40,412 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 15:27:40,412 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 15:27:40,412 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 15:27:40,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:27:40" (1/1) ... [2019-12-07 15:27:40,432 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:27:40" (1/1) ... [2019-12-07 15:27:40,455 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 15:27:40,456 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:27:40,456 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:27:40,456 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:27:40,463 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:27:40" (1/1) ... [2019-12-07 15:27:40,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:27:40" (1/1) ... [2019-12-07 15:27:40,467 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:27:40" (1/1) ... [2019-12-07 15:27:40,467 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:27:40" (1/1) ... [2019-12-07 15:27:40,475 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:27:40" (1/1) ... [2019-12-07 15:27:40,481 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:27:40" (1/1) ... [2019-12-07 15:27:40,483 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:27:40" (1/1) ... [2019-12-07 15:27:40,485 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:27:40,486 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:27:40,486 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:27:40,486 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:27:40,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:27:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f81bf37e-d14d-47db-b049-35f599a6da0b/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 15:27:40,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 15:27:40,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 15:27:40,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:27:40,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:27:40,996 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:27:40,996 INFO L287 CfgBuilder]: Removed 122 assume(true) statements. [2019-12-07 15:27:40,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:27:40 BoogieIcfgContainer [2019-12-07 15:27:40,997 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:27:40,998 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 15:27:40,998 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 15:27:41,000 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 15:27:41,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 03:27:40" (1/3) ... [2019-12-07 15:27:41,001 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5346b932 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:27:41, skipping insertion in model container [2019-12-07 15:27:41,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:27:40" (2/3) ... [2019-12-07 15:27:41,001 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5346b932 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:27:41, skipping insertion in model container [2019-12-07 15:27:41,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:27:40" (3/3) ... [2019-12-07 15:27:41,002 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product44.cil.c [2019-12-07 15:27:41,009 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 15:27:41,015 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 15:27:41,023 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 15:27:41,040 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 15:27:41,040 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 15:27:41,040 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 15:27:41,040 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:27:41,040 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:27:41,040 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 15:27:41,041 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:27:41,041 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 15:27:41,052 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states. [2019-12-07 15:27:41,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 15:27:41,057 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:27:41,057 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 15:27:41,058 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:27:41,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:27:41,062 INFO L82 PathProgramCache]: Analyzing trace with hash -732978716, now seen corresponding path program 1 times [2019-12-07 15:27:41,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:27:41,071 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [185261856] [2019-12-07 15:27:41,071 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f81bf37e-d14d-47db-b049-35f599a6da0b/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 15:27:41,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:27:41,199 INFO L264 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 15:27:41,203 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:27:41,214 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 15:27:41,214 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:27:41,217 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 15:27:41,218 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [185261856] [2019-12-07 15:27:41,219 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:27:41,219 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 15:27:41,220 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969786871] [2019-12-07 15:27:41,223 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 15:27:41,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:27:41,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 15:27:41,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 15:27:41,233 INFO L87 Difference]: Start difference. First operand 93 states. Second operand 2 states. [2019-12-07 15:27:41,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:27:41,254 INFO L93 Difference]: Finished difference Result 179 states and 270 transitions. [2019-12-07 15:27:41,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 15:27:41,255 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-12-07 15:27:41,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:27:41,263 INFO L225 Difference]: With dead ends: 179 [2019-12-07 15:27:41,263 INFO L226 Difference]: Without dead ends: 89 [2019-12-07 15:27:41,266 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 15:27:41,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2019-12-07 15:27:41,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2019-12-07 15:27:41,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2019-12-07 15:27:41,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 127 transitions. [2019-12-07 15:27:41,296 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 127 transitions. Word has length 18 [2019-12-07 15:27:41,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:27:41,296 INFO L462 AbstractCegarLoop]: Abstraction has 89 states and 127 transitions. [2019-12-07 15:27:41,296 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 15:27:41,296 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 127 transitions. [2019-12-07 15:27:41,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 15:27:41,297 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:27:41,297 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 15:27:41,498 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 15:27:41,498 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:27:41,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:27:41,499 INFO L82 PathProgramCache]: Analyzing trace with hash -951814685, now seen corresponding path program 1 times [2019-12-07 15:27:41,500 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:27:41,500 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [504270810] [2019-12-07 15:27:41,500 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f81bf37e-d14d-47db-b049-35f599a6da0b/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 15:27:41,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:27:41,706 INFO L264 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 15:27:41,708 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:27:41,722 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 15:27:41,722 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:27:41,731 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 15:27:41,731 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [504270810] [2019-12-07 15:27:41,731 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:27:41,731 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 15:27:41,732 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521187080] [2019-12-07 15:27:41,733 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 15:27:41,733 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:27:41,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 15:27:41,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:27:41,734 INFO L87 Difference]: Start difference. First operand 89 states and 127 transitions. Second operand 4 states. [2019-12-07 15:27:41,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:27:41,746 INFO L93 Difference]: Finished difference Result 89 states and 127 transitions. [2019-12-07 15:27:41,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 15:27:41,747 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2019-12-07 15:27:41,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:27:41,748 INFO L225 Difference]: With dead ends: 89 [2019-12-07 15:27:41,748 INFO L226 Difference]: Without dead ends: 41 [2019-12-07 15:27:41,749 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 15:27:41,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-12-07 15:27:41,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2019-12-07 15:27:41,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-12-07 15:27:41,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 58 transitions. [2019-12-07 15:27:41,755 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 58 transitions. Word has length 19 [2019-12-07 15:27:41,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:27:41,756 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 58 transitions. [2019-12-07 15:27:41,756 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 15:27:41,756 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 58 transitions. [2019-12-07 15:27:41,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 15:27:41,757 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:27:41,757 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 15:27:41,957 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 15:27:41,958 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:27:41,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:27:41,959 INFO L82 PathProgramCache]: Analyzing trace with hash -2025304256, now seen corresponding path program 1 times [2019-12-07 15:27:41,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:27:41,960 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1693799881] [2019-12-07 15:27:41,961 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f81bf37e-d14d-47db-b049-35f599a6da0b/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 15:27:42,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:27:42,159 INFO L264 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 15:27:42,161 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:27:42,169 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 15:27:42,170 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:27:42,177 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 15:27:42,178 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1693799881] [2019-12-07 15:27:42,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:27:42,178 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 15:27:42,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158407782] [2019-12-07 15:27:42,179 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 15:27:42,179 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:27:42,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 15:27:42,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:27:42,180 INFO L87 Difference]: Start difference. First operand 41 states and 58 transitions. Second operand 4 states. [2019-12-07 15:27:42,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:27:42,242 INFO L93 Difference]: Finished difference Result 133 states and 196 transitions. [2019-12-07 15:27:42,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 15:27:42,242 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-12-07 15:27:42,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:27:42,244 INFO L225 Difference]: With dead ends: 133 [2019-12-07 15:27:42,244 INFO L226 Difference]: Without dead ends: 99 [2019-12-07 15:27:42,244 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 15:27:42,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-12-07 15:27:42,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 61. [2019-12-07 15:27:42,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2019-12-07 15:27:42,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 89 transitions. [2019-12-07 15:27:42,255 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 89 transitions. Word has length 24 [2019-12-07 15:27:42,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:27:42,255 INFO L462 AbstractCegarLoop]: Abstraction has 61 states and 89 transitions. [2019-12-07 15:27:42,255 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 15:27:42,256 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 89 transitions. [2019-12-07 15:27:42,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 15:27:42,257 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:27:42,257 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:27:42,457 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 15:27:42,457 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:27:42,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:27:42,458 INFO L82 PathProgramCache]: Analyzing trace with hash 193545241, now seen corresponding path program 1 times [2019-12-07 15:27:42,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:27:42,459 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [503464857] [2019-12-07 15:27:42,459 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f81bf37e-d14d-47db-b049-35f599a6da0b/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 15:27:42,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:27:42,560 INFO L264 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 15:27:42,562 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:27:42,567 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 15:27:42,567 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:27:42,569 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 15:27:42,569 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [503464857] [2019-12-07 15:27:42,570 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:27:42,570 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 15:27:42,570 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435239824] [2019-12-07 15:27:42,570 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 15:27:42,570 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:27:42,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 15:27:42,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 15:27:42,571 INFO L87 Difference]: Start difference. First operand 61 states and 89 transitions. Second operand 3 states. [2019-12-07 15:27:42,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:27:42,618 INFO L93 Difference]: Finished difference Result 137 states and 203 transitions. [2019-12-07 15:27:42,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 15:27:42,618 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-12-07 15:27:42,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:27:42,619 INFO L225 Difference]: With dead ends: 137 [2019-12-07 15:27:42,619 INFO L226 Difference]: Without dead ends: 83 [2019-12-07 15:27:42,620 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 15:27:42,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2019-12-07 15:27:42,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 81. [2019-12-07 15:27:42,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2019-12-07 15:27:42,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 116 transitions. [2019-12-07 15:27:42,629 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 116 transitions. Word has length 25 [2019-12-07 15:27:42,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:27:42,630 INFO L462 AbstractCegarLoop]: Abstraction has 81 states and 116 transitions. [2019-12-07 15:27:42,630 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 15:27:42,630 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 116 transitions. [2019-12-07 15:27:42,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-07 15:27:42,631 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:27:42,631 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 15:27:42,832 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 15:27:42,833 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:27:42,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:27:42,833 INFO L82 PathProgramCache]: Analyzing trace with hash 433385865, now seen corresponding path program 1 times [2019-12-07 15:27:42,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:27:42,835 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [815275508] [2019-12-07 15:27:42,835 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f81bf37e-d14d-47db-b049-35f599a6da0b/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 15:27:42,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:27:42,977 INFO L264 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 15:27:42,978 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:27:42,990 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 15:27:42,990 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:27:42,998 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 15:27:42,999 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [815275508] [2019-12-07 15:27:42,999 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:27:42,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-12-07 15:27:42,999 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8175875] [2019-12-07 15:27:43,000 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 15:27:43,000 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:27:43,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 15:27:43,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 15:27:43,000 INFO L87 Difference]: Start difference. First operand 81 states and 116 transitions. Second operand 5 states. [2019-12-07 15:27:43,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:27:43,103 INFO L93 Difference]: Finished difference Result 378 states and 552 transitions. [2019-12-07 15:27:43,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 15:27:43,104 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-12-07 15:27:43,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:27:43,106 INFO L225 Difference]: With dead ends: 378 [2019-12-07 15:27:43,106 INFO L226 Difference]: Without dead ends: 304 [2019-12-07 15:27:43,107 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-07 15:27:43,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2019-12-07 15:27:43,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 144. [2019-12-07 15:27:43,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-12-07 15:27:43,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 203 transitions. [2019-12-07 15:27:43,123 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 203 transitions. Word has length 27 [2019-12-07 15:27:43,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:27:43,123 INFO L462 AbstractCegarLoop]: Abstraction has 144 states and 203 transitions. [2019-12-07 15:27:43,123 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 15:27:43,123 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 203 transitions. [2019-12-07 15:27:43,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-07 15:27:43,124 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:27:43,124 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 15:27:43,325 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 15:27:43,325 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:27:43,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:27:43,326 INFO L82 PathProgramCache]: Analyzing trace with hash -1000759295, now seen corresponding path program 1 times [2019-12-07 15:27:43,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:27:43,328 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [561043304] [2019-12-07 15:27:43,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f81bf37e-d14d-47db-b049-35f599a6da0b/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 15:27:43,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:27:43,464 INFO L264 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 15:27:43,465 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:27:43,483 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 15:27:43,483 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:27:43,486 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 15:27:43,487 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [561043304] [2019-12-07 15:27:43,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:27:43,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 15:27:43,487 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235653454] [2019-12-07 15:27:43,488 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 15:27:43,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:27:43,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 15:27:43,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 15:27:43,489 INFO L87 Difference]: Start difference. First operand 144 states and 203 transitions. Second operand 5 states. [2019-12-07 15:27:43,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:27:43,636 INFO L93 Difference]: Finished difference Result 529 states and 751 transitions. [2019-12-07 15:27:43,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 15:27:43,637 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2019-12-07 15:27:43,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:27:43,639 INFO L225 Difference]: With dead ends: 529 [2019-12-07 15:27:43,639 INFO L226 Difference]: Without dead ends: 392 [2019-12-07 15:27:43,640 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-07 15:27:43,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2019-12-07 15:27:43,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 142. [2019-12-07 15:27:43,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2019-12-07 15:27:43,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 197 transitions. [2019-12-07 15:27:43,656 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 197 transitions. Word has length 28 [2019-12-07 15:27:43,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:27:43,656 INFO L462 AbstractCegarLoop]: Abstraction has 142 states and 197 transitions. [2019-12-07 15:27:43,657 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 15:27:43,657 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 197 transitions. [2019-12-07 15:27:43,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-07 15:27:43,658 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:27:43,658 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:27:43,859 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 15:27:43,859 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:27:43,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:27:43,859 INFO L82 PathProgramCache]: Analyzing trace with hash 341285158, now seen corresponding path program 1 times [2019-12-07 15:27:43,860 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:27:43,860 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1826009571] [2019-12-07 15:27:43,860 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f81bf37e-d14d-47db-b049-35f599a6da0b/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2019-12-07 15:27:43,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:27:43,957 INFO L264 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 15:27:43,958 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:27:43,971 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 15:27:43,971 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:27:43,974 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 15:27:43,974 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1826009571] [2019-12-07 15:27:43,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:27:43,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 15:27:43,975 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613028963] [2019-12-07 15:27:43,975 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 15:27:43,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:27:43,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 15:27:43,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 15:27:43,975 INFO L87 Difference]: Start difference. First operand 142 states and 197 transitions. Second operand 5 states. [2019-12-07 15:27:44,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:27:44,015 INFO L93 Difference]: Finished difference Result 429 states and 593 transitions. [2019-12-07 15:27:44,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 15:27:44,016 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2019-12-07 15:27:44,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:27:44,018 INFO L225 Difference]: With dead ends: 429 [2019-12-07 15:27:44,018 INFO L226 Difference]: Without dead ends: 294 [2019-12-07 15:27:44,018 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 15:27:44,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2019-12-07 15:27:44,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 148. [2019-12-07 15:27:44,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2019-12-07 15:27:44,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 203 transitions. [2019-12-07 15:27:44,032 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 203 transitions. Word has length 35 [2019-12-07 15:27:44,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:27:44,033 INFO L462 AbstractCegarLoop]: Abstraction has 148 states and 203 transitions. [2019-12-07 15:27:44,033 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 15:27:44,033 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 203 transitions. [2019-12-07 15:27:44,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-07 15:27:44,034 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:27:44,034 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:27:44,235 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 15:27:44,236 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:27:44,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:27:44,236 INFO L82 PathProgramCache]: Analyzing trace with hash -669832092, now seen corresponding path program 1 times [2019-12-07 15:27:44,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:27:44,238 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1743355387] [2019-12-07 15:27:44,238 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f81bf37e-d14d-47db-b049-35f599a6da0b/bin/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2019-12-07 15:27:44,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:27:44,379 INFO L264 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 15:27:44,380 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:27:44,388 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 15:27:44,389 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:27:44,398 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 15:27:44,398 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1743355387] [2019-12-07 15:27:44,399 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:27:44,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 15:27:44,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845453253] [2019-12-07 15:27:44,399 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 15:27:44,399 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:27:44,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 15:27:44,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 15:27:44,399 INFO L87 Difference]: Start difference. First operand 148 states and 203 transitions. Second operand 6 states. [2019-12-07 15:27:44,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:27:44,436 INFO L93 Difference]: Finished difference Result 447 states and 611 transitions. [2019-12-07 15:27:44,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 15:27:44,437 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2019-12-07 15:27:44,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:27:44,438 INFO L225 Difference]: With dead ends: 447 [2019-12-07 15:27:44,438 INFO L226 Difference]: Without dead ends: 306 [2019-12-07 15:27:44,439 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 15:27:44,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2019-12-07 15:27:44,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 152. [2019-12-07 15:27:44,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2019-12-07 15:27:44,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 207 transitions. [2019-12-07 15:27:44,452 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 207 transitions. Word has length 35 [2019-12-07 15:27:44,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:27:44,452 INFO L462 AbstractCegarLoop]: Abstraction has 152 states and 207 transitions. [2019-12-07 15:27:44,452 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 15:27:44,452 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 207 transitions. [2019-12-07 15:27:44,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-07 15:27:44,453 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:27:44,454 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:27:44,654 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-12-07 15:27:44,655 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:27:44,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:27:44,656 INFO L82 PathProgramCache]: Analyzing trace with hash -1690900446, now seen corresponding path program 1 times [2019-12-07 15:27:44,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:27:44,657 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [594584824] [2019-12-07 15:27:44,657 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f81bf37e-d14d-47db-b049-35f599a6da0b/bin/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2019-12-07 15:27:44,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:27:44,787 INFO L264 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 15:27:44,788 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:27:44,795 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 15:27:44,795 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:27:44,803 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 15:27:44,803 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [594584824] [2019-12-07 15:27:44,803 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:27:44,803 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 15:27:44,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952342901] [2019-12-07 15:27:44,804 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 15:27:44,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:27:44,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 15:27:44,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:27:44,805 INFO L87 Difference]: Start difference. First operand 152 states and 207 transitions. Second operand 4 states. [2019-12-07 15:27:44,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:27:44,856 INFO L93 Difference]: Finished difference Result 508 states and 695 transitions. [2019-12-07 15:27:44,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 15:27:44,856 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2019-12-07 15:27:44,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:27:44,858 INFO L225 Difference]: With dead ends: 508 [2019-12-07 15:27:44,858 INFO L226 Difference]: Without dead ends: 363 [2019-12-07 15:27:44,859 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:27:44,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2019-12-07 15:27:44,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 275. [2019-12-07 15:27:44,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2019-12-07 15:27:44,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 372 transitions. [2019-12-07 15:27:44,876 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 372 transitions. Word has length 35 [2019-12-07 15:27:44,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:27:44,876 INFO L462 AbstractCegarLoop]: Abstraction has 275 states and 372 transitions. [2019-12-07 15:27:44,876 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 15:27:44,876 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 372 transitions. [2019-12-07 15:27:44,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-12-07 15:27:44,877 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:27:44,877 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:27:45,077 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2019-12-07 15:27:45,078 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:27:45,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:27:45,078 INFO L82 PathProgramCache]: Analyzing trace with hash -2015558942, now seen corresponding path program 1 times [2019-12-07 15:27:45,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:27:45,078 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [870793200] [2019-12-07 15:27:45,078 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f81bf37e-d14d-47db-b049-35f599a6da0b/bin/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2019-12-07 15:27:45,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:27:45,175 INFO L264 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 15:27:45,176 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:27:45,196 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 15:27:45,196 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:27:45,229 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 15:27:45,229 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [870793200] [2019-12-07 15:27:45,229 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:27:45,229 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-12-07 15:27:45,230 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829033630] [2019-12-07 15:27:45,230 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 15:27:45,230 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:27:45,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 15:27:45,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-12-07 15:27:45,230 INFO L87 Difference]: Start difference. First operand 275 states and 372 transitions. Second operand 10 states. [2019-12-07 15:27:45,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:27:45,598 INFO L93 Difference]: Finished difference Result 1205 states and 1609 transitions. [2019-12-07 15:27:45,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-12-07 15:27:45,599 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 36 [2019-12-07 15:27:45,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:27:45,603 INFO L225 Difference]: With dead ends: 1205 [2019-12-07 15:27:45,603 INFO L226 Difference]: Without dead ends: 937 [2019-12-07 15:27:45,604 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2019-12-07 15:27:45,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2019-12-07 15:27:45,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 275. [2019-12-07 15:27:45,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2019-12-07 15:27:45,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 365 transitions. [2019-12-07 15:27:45,627 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 365 transitions. Word has length 36 [2019-12-07 15:27:45,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:27:45,627 INFO L462 AbstractCegarLoop]: Abstraction has 275 states and 365 transitions. [2019-12-07 15:27:45,627 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 15:27:45,627 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 365 transitions. [2019-12-07 15:27:45,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-12-07 15:27:45,628 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:27:45,628 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:27:45,828 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2019-12-07 15:27:45,829 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:27:45,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:27:45,829 INFO L82 PathProgramCache]: Analyzing trace with hash -59965040, now seen corresponding path program 1 times [2019-12-07 15:27:45,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:27:45,829 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [265505002] [2019-12-07 15:27:45,830 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f81bf37e-d14d-47db-b049-35f599a6da0b/bin/utaipan/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2019-12-07 15:27:45,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:27:45,931 INFO L264 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 15:27:45,933 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:27:45,941 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:27:45,942 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:27:45,947 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:27:45,947 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [265505002] [2019-12-07 15:27:45,948 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:27:45,948 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 15:27:45,948 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913603597] [2019-12-07 15:27:45,948 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 15:27:45,949 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:27:45,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 15:27:45,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 15:27:45,949 INFO L87 Difference]: Start difference. First operand 275 states and 365 transitions. Second operand 3 states. [2019-12-07 15:27:46,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:27:46,032 INFO L93 Difference]: Finished difference Result 431 states and 570 transitions. [2019-12-07 15:27:46,032 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 15:27:46,032 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2019-12-07 15:27:46,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:27:46,034 INFO L225 Difference]: With dead ends: 431 [2019-12-07 15:27:46,034 INFO L226 Difference]: Without dead ends: 429 [2019-12-07 15:27:46,035 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 15:27:46,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2019-12-07 15:27:46,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 315. [2019-12-07 15:27:46,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2019-12-07 15:27:46,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 424 transitions. [2019-12-07 15:27:46,065 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 424 transitions. Word has length 51 [2019-12-07 15:27:46,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:27:46,065 INFO L462 AbstractCegarLoop]: Abstraction has 315 states and 424 transitions. [2019-12-07 15:27:46,065 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 15:27:46,065 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 424 transitions. [2019-12-07 15:27:46,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-12-07 15:27:46,066 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:27:46,066 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:27:46,267 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2019-12-07 15:27:46,267 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:27:46,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:27:46,267 INFO L82 PathProgramCache]: Analyzing trace with hash -376855367, now seen corresponding path program 1 times [2019-12-07 15:27:46,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:27:46,268 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [911589747] [2019-12-07 15:27:46,268 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f81bf37e-d14d-47db-b049-35f599a6da0b/bin/utaipan/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2019-12-07 15:27:46,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:27:47,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:27:47,664 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 15:27:47,664 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 15:27:47,865 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2019-12-07 15:27:47,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 03:27:47 BoogieIcfgContainer [2019-12-07 15:27:47,977 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 15:27:47,978 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:27:47,978 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:27:47,978 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:27:47,978 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:27:40" (3/4) ... [2019-12-07 15:27:47,980 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 15:27:48,059 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f81bf37e-d14d-47db-b049-35f599a6da0b/bin/utaipan/witness.graphml [2019-12-07 15:27:48,059 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:27:48,061 INFO L168 Benchmark]: Toolchain (without parser) took 8029.66 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 309.3 MB). Free memory was 953.7 MB in the beginning and 1.2 GB in the end (delta: -261.9 MB). Peak memory consumption was 47.4 MB. Max. memory is 11.5 GB. [2019-12-07 15:27:48,061 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 15:27:48,061 INFO L168 Benchmark]: CACSL2BoogieTranslator took 380.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -151.0 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-12-07 15:27:48,061 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.47 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-12-07 15:27:48,061 INFO L168 Benchmark]: Boogie Preprocessor took 29.79 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 15:27:48,061 INFO L168 Benchmark]: RCFGBuilder took 511.25 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: 69.4 MB). Peak memory consumption was 69.4 MB. Max. memory is 11.5 GB. [2019-12-07 15:27:48,062 INFO L168 Benchmark]: TraceAbstraction took 6979.67 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 177.2 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -219.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:27:48,062 INFO L168 Benchmark]: Witness Printer took 81.85 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2019-12-07 15:27:48,063 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 380.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -151.0 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.47 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.79 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 511.25 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: 69.4 MB). Peak memory consumption was 69.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6979.67 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 177.2 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -219.9 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 81.85 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L132] int pumpRunning = 0; [L133] int systemActive = 1; [L364] int cleanupTimeShifts = 4; [L462] int methAndRunningLastTime ; [L502] int waterLevel = 1; [L503] int methaneLevelCritical = 0; [L765] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L439] int retValue_acc ; [L440] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L355] int retValue_acc ; [L358] retValue_acc = 1 [L359] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L446] tmp = valid_product() [L448] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L467] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L67] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L73] tmp = __VERIFIER_nondet_int() [L75] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L520] COND TRUE waterLevel < 2 [L521] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) [L321] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L140] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L147] COND TRUE \read(systemActive) [L169] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L172] COND TRUE ! pumpRunning [L284] int retValue_acc ; [L285] int tmp ; [L286] int tmp___0 ; [L582] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L585] COND FALSE !(waterLevel < 2) [L589] retValue_acc = 0 [L590] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L290] tmp = isHighWaterSensorDry() [L292] COND FALSE !(\read(tmp)) [L295] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L297] retValue_acc = tmp___0 [L298] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L174] tmp = isHighWaterLevel() [L176] COND TRUE \read(tmp) [L203] int tmp ; [L228] int retValue_acc ; [L541] int retValue_acc ; [L544] retValue_acc = methaneLevelCritical [L545] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L232] retValue_acc = isMethaneLevelCritical() [L234] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L207] tmp = isMethaneAlarm() [L209] COND FALSE !(\read(tmp)) [L197] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L472] int tmp ; [L473] int tmp___0 ; [L541] int retValue_acc ; [L544] retValue_acc = methaneLevelCritical [L545] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L477] tmp = isMethaneLevelCritical() [L479] COND FALSE !(\read(tmp)) [L495] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L65] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L67] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L73] tmp = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L532] COND FALSE !(\read(methaneLevelCritical)) [L535] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) [L321] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L140] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L508] COND TRUE waterLevel > 0 [L509] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L147] COND TRUE \read(systemActive) [L169] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L172] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L472] int tmp ; [L473] int tmp___0 ; [L541] int retValue_acc ; [L544] retValue_acc = methaneLevelCritical [L545] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L477] tmp = isMethaneLevelCritical() [L479] COND TRUE \read(tmp) [L239] int retValue_acc ; [L242] retValue_acc = pumpRunning [L243] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L481] tmp___0 = isPumpRunning() [L483] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L484] COND FALSE !(\read(methAndRunningLastTime)) [L489] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L65] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L67] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L73] tmp = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) [L321] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L140] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L508] COND TRUE waterLevel > 0 [L509] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L147] COND TRUE \read(systemActive) [L169] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L172] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L472] int tmp ; [L473] int tmp___0 ; [L541] int retValue_acc ; [L544] retValue_acc = methaneLevelCritical [L545] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L477] tmp = isMethaneLevelCritical() [L479] COND TRUE \read(tmp) [L239] int retValue_acc ; [L242] retValue_acc = pumpRunning [L243] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L481] tmp___0 = isPumpRunning() [L483] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L484] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L44] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 93 locations, 3 error locations. Result: UNSAFE, OverallTime: 6.8s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 955 SDtfs, 1404 SDslu, 2260 SDs, 0 SdLazy, 234 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 673 GetRequests, 624 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=315occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 1614 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 402 NumberOfCodeBlocks, 402 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 644 ConstructedInterpolants, 0 QuantifiedInterpolants, 36294 SizeOfPredicates, 21 NumberOfNonLiveVariables, 2165 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 PerfectInterpolantSequences, 28/28 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...