./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product45.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_c14cef0d-8fd4-4006-aacf-ec87c996561d/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c14cef0d-8fd4-4006-aacf-ec87c996561d/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c14cef0d-8fd4-4006-aacf-ec87c996561d/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c14cef0d-8fd4-4006-aacf-ec87c996561d/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product45.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c14cef0d-8fd4-4006-aacf-ec87c996561d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c14cef0d-8fd4-4006-aacf-ec87c996561d/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 a9369a06c8d4df60e49baaf177cf32aba3e52d93 ...................................................................................................................................... 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_c14cef0d-8fd4-4006-aacf-ec87c996561d/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c14cef0d-8fd4-4006-aacf-ec87c996561d/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c14cef0d-8fd4-4006-aacf-ec87c996561d/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c14cef0d-8fd4-4006-aacf-ec87c996561d/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product45.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c14cef0d-8fd4-4006-aacf-ec87c996561d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c14cef0d-8fd4-4006-aacf-ec87c996561d/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 a9369a06c8d4df60e49baaf177cf32aba3e52d93 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 21:05:32,657 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 21:05:32,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 21:05:32,666 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 21:05:32,666 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 21:05:32,666 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 21:05:32,667 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 21:05:32,669 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 21:05:32,670 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 21:05:32,670 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 21:05:32,671 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 21:05:32,672 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 21:05:32,672 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 21:05:32,673 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 21:05:32,673 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 21:05:32,674 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 21:05:32,675 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 21:05:32,675 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 21:05:32,677 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 21:05:32,678 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 21:05:32,679 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 21:05:32,680 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 21:05:32,681 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 21:05:32,681 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 21:05:32,683 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 21:05:32,683 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 21:05:32,683 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 21:05:32,684 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 21:05:32,684 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 21:05:32,684 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 21:05:32,685 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 21:05:32,685 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 21:05:32,685 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 21:05:32,686 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 21:05:32,686 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 21:05:32,687 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 21:05:32,687 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 21:05:32,687 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 21:05:32,687 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 21:05:32,688 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 21:05:32,688 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 21:05:32,689 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c14cef0d-8fd4-4006-aacf-ec87c996561d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 21:05:32,698 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 21:05:32,698 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 21:05:32,699 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 21:05:32,699 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 21:05:32,699 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 21:05:32,699 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 21:05:32,699 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 21:05:32,699 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 21:05:32,699 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 21:05:32,700 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 21:05:32,700 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 21:05:32,700 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 21:05:32,700 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 21:05:32,700 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 21:05:32,700 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 21:05:32,700 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 21:05:32,701 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 21:05:32,701 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 21:05:32,701 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 21:05:32,701 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 21:05:32,701 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 21:05:32,701 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 21:05:32,701 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 21:05:32,701 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 21:05:32,702 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 21:05:32,702 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 21:05:32,702 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 21:05:32,702 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 21:05:32,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 21:05:32,702 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 21:05:32,702 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 21:05:32,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 21:05:32,703 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 21:05:32,703 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 21:05:32,703 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 21:05:32,703 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 21:05:32,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 21:05:32,703 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 21:05:32,703 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 21:05:32,703 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 21:05:32,703 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_c14cef0d-8fd4-4006-aacf-ec87c996561d/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 -> a9369a06c8d4df60e49baaf177cf32aba3e52d93 [2019-12-07 21:05:32,805 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 21:05:32,816 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 21:05:32,819 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 21:05:32,820 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 21:05:32,820 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 21:05:32,821 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c14cef0d-8fd4-4006-aacf-ec87c996561d/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product45.cil.c [2019-12-07 21:05:32,868 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c14cef0d-8fd4-4006-aacf-ec87c996561d/bin/utaipan/data/4d7da93a9/97d372348aa5479b9dd76303deeab050/FLAGa8c7dc45d [2019-12-07 21:05:33,353 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 21:05:33,354 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c14cef0d-8fd4-4006-aacf-ec87c996561d/sv-benchmarks/c/product-lines/minepump_spec4_product45.cil.c [2019-12-07 21:05:33,362 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c14cef0d-8fd4-4006-aacf-ec87c996561d/bin/utaipan/data/4d7da93a9/97d372348aa5479b9dd76303deeab050/FLAGa8c7dc45d [2019-12-07 21:05:33,844 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c14cef0d-8fd4-4006-aacf-ec87c996561d/bin/utaipan/data/4d7da93a9/97d372348aa5479b9dd76303deeab050 [2019-12-07 21:05:33,846 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 21:05:33,847 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 21:05:33,847 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 21:05:33,847 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 21:05:33,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 21:05:33,850 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:05:33" (1/1) ... [2019-12-07 21:05:33,852 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7853e9be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:05:33, skipping insertion in model container [2019-12-07 21:05:33,852 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:05:33" (1/1) ... [2019-12-07 21:05:33,857 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 21:05:33,884 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 21:05:34,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:05:34,095 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 21:05:34,095 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1694ab20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:05:34, skipping insertion in model container [2019-12-07 21:05:34,095 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 21:05:34,096 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 21:05:34,097 INFO L168 Benchmark]: Toolchain (without parser) took 249.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -198.3 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-12-07 21:05:34,098 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 959.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 21:05:34,098 INFO L168 Benchmark]: CACSL2BoogieTranslator took 248.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -198.3 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-12-07 21:05:34,099 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 959.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 248.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -198.3 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: 350]: 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 21:05:35,236 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 21:05:35,238 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 21:05:35,245 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 21:05:35,246 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 21:05:35,246 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 21:05:35,247 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 21:05:35,249 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 21:05:35,250 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 21:05:35,251 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 21:05:35,251 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 21:05:35,252 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 21:05:35,252 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 21:05:35,253 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 21:05:35,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 21:05:35,255 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 21:05:35,255 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 21:05:35,256 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 21:05:35,257 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 21:05:35,259 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 21:05:35,260 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 21:05:35,261 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 21:05:35,261 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 21:05:35,262 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 21:05:35,264 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 21:05:35,264 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 21:05:35,264 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 21:05:35,265 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 21:05:35,265 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 21:05:35,266 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 21:05:35,266 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 21:05:35,267 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 21:05:35,267 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 21:05:35,268 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 21:05:35,268 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 21:05:35,268 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 21:05:35,269 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 21:05:35,269 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 21:05:35,269 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 21:05:35,270 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 21:05:35,270 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 21:05:35,271 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c14cef0d-8fd4-4006-aacf-ec87c996561d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 21:05:35,281 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 21:05:35,281 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 21:05:35,282 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 21:05:35,282 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 21:05:35,282 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 21:05:35,282 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 21:05:35,283 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 21:05:35,283 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 21:05:35,283 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 21:05:35,283 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 21:05:35,283 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 21:05:35,284 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 21:05:35,284 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 21:05:35,284 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 21:05:35,284 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 21:05:35,284 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 21:05:35,284 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 21:05:35,284 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 21:05:35,284 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 21:05:35,285 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 21:05:35,285 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 21:05:35,285 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 21:05:35,285 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 21:05:35,285 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 21:05:35,285 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 21:05:35,285 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 21:05:35,285 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 21:05:35,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 21:05:35,286 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 21:05:35,286 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 21:05:35,286 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 21:05:35,286 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 21:05:35,286 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 21:05:35,286 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 21:05:35,286 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 21:05:35,287 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 21:05:35,287 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_c14cef0d-8fd4-4006-aacf-ec87c996561d/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 -> a9369a06c8d4df60e49baaf177cf32aba3e52d93 [2019-12-07 21:05:35,456 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 21:05:35,466 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 21:05:35,469 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 21:05:35,470 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 21:05:35,470 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 21:05:35,471 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c14cef0d-8fd4-4006-aacf-ec87c996561d/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product45.cil.c [2019-12-07 21:05:35,513 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c14cef0d-8fd4-4006-aacf-ec87c996561d/bin/utaipan/data/3753ea31a/0e2484abee5d4d688d05eee25d6c258f/FLAGcc9e887ee [2019-12-07 21:05:35,932 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 21:05:35,933 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c14cef0d-8fd4-4006-aacf-ec87c996561d/sv-benchmarks/c/product-lines/minepump_spec4_product45.cil.c [2019-12-07 21:05:35,941 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c14cef0d-8fd4-4006-aacf-ec87c996561d/bin/utaipan/data/3753ea31a/0e2484abee5d4d688d05eee25d6c258f/FLAGcc9e887ee [2019-12-07 21:05:36,292 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c14cef0d-8fd4-4006-aacf-ec87c996561d/bin/utaipan/data/3753ea31a/0e2484abee5d4d688d05eee25d6c258f [2019-12-07 21:05:36,294 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 21:05:36,295 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 21:05:36,296 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 21:05:36,296 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 21:05:36,298 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 21:05:36,298 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:05:36" (1/1) ... [2019-12-07 21:05:36,300 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9aca9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:05:36, skipping insertion in model container [2019-12-07 21:05:36,300 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 09:05:36" (1/1) ... [2019-12-07 21:05:36,305 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 21:05:36,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 21:05:36,512 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:05:36,562 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 21:05:36,568 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 21:05:36,612 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:05:36,616 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 21:05:36,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 21:05:36,684 INFO L208 MainTranslator]: Completed translation [2019-12-07 21:05:36,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:05:36 WrapperNode [2019-12-07 21:05:36,684 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 21:05:36,685 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 21:05:36,685 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 21:05:36,685 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 21:05:36,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:05:36" (1/1) ... [2019-12-07 21:05:36,704 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:05:36" (1/1) ... [2019-12-07 21:05:36,731 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 21:05:36,731 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 21:05:36,731 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 21:05:36,731 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 21:05:36,738 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:05:36" (1/1) ... [2019-12-07 21:05:36,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:05:36" (1/1) ... [2019-12-07 21:05:36,742 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:05:36" (1/1) ... [2019-12-07 21:05:36,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:05:36" (1/1) ... [2019-12-07 21:05:36,753 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:05:36" (1/1) ... [2019-12-07 21:05:36,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:05:36" (1/1) ... [2019-12-07 21:05:36,763 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:05:36" (1/1) ... [2019-12-07 21:05:36,767 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 21:05:36,767 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 21:05:36,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 21:05:36,767 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 21:05:36,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:05:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c14cef0d-8fd4-4006-aacf-ec87c996561d/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 21:05:36,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 21:05:36,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 21:05:36,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 21:05:36,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 21:05:37,357 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 21:05:37,357 INFO L287 CfgBuilder]: Removed 192 assume(true) statements. [2019-12-07 21:05:37,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:05:37 BoogieIcfgContainer [2019-12-07 21:05:37,358 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 21:05:37,360 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 21:05:37,360 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 21:05:37,362 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 21:05:37,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 09:05:36" (1/3) ... [2019-12-07 21:05:37,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5215abf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 09:05:37, skipping insertion in model container [2019-12-07 21:05:37,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 09:05:36" (2/3) ... [2019-12-07 21:05:37,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5215abf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 09:05:37, skipping insertion in model container [2019-12-07 21:05:37,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:05:37" (3/3) ... [2019-12-07 21:05:37,365 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product45.cil.c [2019-12-07 21:05:37,372 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 21:05:37,377 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 21:05:37,385 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 21:05:37,402 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 21:05:37,402 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 21:05:37,402 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 21:05:37,402 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 21:05:37,402 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 21:05:37,402 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 21:05:37,402 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 21:05:37,402 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 21:05:37,414 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states. [2019-12-07 21:05:37,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 21:05:37,418 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:05:37,419 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 21:05:37,419 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:05:37,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:05:37,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1880189342, now seen corresponding path program 1 times [2019-12-07 21:05:37,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:05:37,431 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [204821756] [2019-12-07 21:05:37,432 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c14cef0d-8fd4-4006-aacf-ec87c996561d/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 21:05:37,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:05:37,561 INFO L264 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 21:05:37,565 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:05:37,575 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 21:05:37,575 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:05:37,579 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 21:05:37,580 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [204821756] [2019-12-07 21:05:37,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:05:37,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 21:05:37,581 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220740813] [2019-12-07 21:05:37,584 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 21:05:37,584 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:05:37,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 21:05:37,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 21:05:37,595 INFO L87 Difference]: Start difference. First operand 129 states. Second operand 2 states. [2019-12-07 21:05:37,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:05:37,618 INFO L93 Difference]: Finished difference Result 252 states and 377 transitions. [2019-12-07 21:05:37,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 21:05:37,620 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-12-07 21:05:37,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:05:37,628 INFO L225 Difference]: With dead ends: 252 [2019-12-07 21:05:37,628 INFO L226 Difference]: Without dead ends: 125 [2019-12-07 21:05:37,631 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 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 21:05:37,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2019-12-07 21:05:37,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2019-12-07 21:05:37,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2019-12-07 21:05:37,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 180 transitions. [2019-12-07 21:05:37,664 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 180 transitions. Word has length 16 [2019-12-07 21:05:37,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:05:37,664 INFO L462 AbstractCegarLoop]: Abstraction has 125 states and 180 transitions. [2019-12-07 21:05:37,664 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 21:05:37,664 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 180 transitions. [2019-12-07 21:05:37,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 21:05:37,665 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:05:37,665 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 21:05:37,866 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 21:05:37,866 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:05:37,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:05:37,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1368021057, now seen corresponding path program 1 times [2019-12-07 21:05:37,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:05:37,867 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1322105568] [2019-12-07 21:05:37,867 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c14cef0d-8fd4-4006-aacf-ec87c996561d/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 21:05:37,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:05:37,977 INFO L264 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 21:05:37,978 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:05:37,994 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 21:05:37,995 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:05:38,004 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 21:05:38,004 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1322105568] [2019-12-07 21:05:38,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:05:38,005 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 21:05:38,005 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344331799] [2019-12-07 21:05:38,007 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 21:05:38,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:05:38,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 21:05:38,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 21:05:38,007 INFO L87 Difference]: Start difference. First operand 125 states and 180 transitions. Second operand 4 states. [2019-12-07 21:05:38,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:05:38,022 INFO L93 Difference]: Finished difference Result 125 states and 180 transitions. [2019-12-07 21:05:38,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 21:05:38,023 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-12-07 21:05:38,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:05:38,024 INFO L225 Difference]: With dead ends: 125 [2019-12-07 21:05:38,024 INFO L226 Difference]: Without dead ends: 51 [2019-12-07 21:05:38,025 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 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 21:05:38,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-12-07 21:05:38,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2019-12-07 21:05:38,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-12-07 21:05:38,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 73 transitions. [2019-12-07 21:05:38,032 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 73 transitions. Word has length 17 [2019-12-07 21:05:38,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:05:38,032 INFO L462 AbstractCegarLoop]: Abstraction has 51 states and 73 transitions. [2019-12-07 21:05:38,032 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 21:05:38,033 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 73 transitions. [2019-12-07 21:05:38,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 21:05:38,033 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:05:38,034 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] [2019-12-07 21:05:38,234 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 21:05:38,235 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:05:38,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:05:38,235 INFO L82 PathProgramCache]: Analyzing trace with hash -2019078694, now seen corresponding path program 1 times [2019-12-07 21:05:38,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:05:38,236 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [447884931] [2019-12-07 21:05:38,236 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c14cef0d-8fd4-4006-aacf-ec87c996561d/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 21:05:38,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:05:38,370 INFO L264 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 21:05:38,371 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:05:38,379 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 21:05:38,379 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:05:38,386 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 21:05:38,386 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [447884931] [2019-12-07 21:05:38,386 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:05:38,386 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 21:05:38,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513134705] [2019-12-07 21:05:38,387 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 21:05:38,387 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:05:38,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 21:05:38,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 21:05:38,387 INFO L87 Difference]: Start difference. First operand 51 states and 73 transitions. Second operand 4 states. [2019-12-07 21:05:38,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:05:38,396 INFO L93 Difference]: Finished difference Result 96 states and 140 transitions. [2019-12-07 21:05:38,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 21:05:38,397 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2019-12-07 21:05:38,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:05:38,398 INFO L225 Difference]: With dead ends: 96 [2019-12-07 21:05:38,398 INFO L226 Difference]: Without dead ends: 51 [2019-12-07 21:05:38,399 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 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 21:05:38,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-12-07 21:05:38,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2019-12-07 21:05:38,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-12-07 21:05:38,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 72 transitions. [2019-12-07 21:05:38,406 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 72 transitions. Word has length 22 [2019-12-07 21:05:38,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:05:38,406 INFO L462 AbstractCegarLoop]: Abstraction has 51 states and 72 transitions. [2019-12-07 21:05:38,407 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 21:05:38,407 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 72 transitions. [2019-12-07 21:05:38,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 21:05:38,408 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:05:38,408 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 21:05:38,610 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 21:05:38,610 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:05:38,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:05:38,611 INFO L82 PathProgramCache]: Analyzing trace with hash -1511639432, now seen corresponding path program 1 times [2019-12-07 21:05:38,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:05:38,612 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [34609326] [2019-12-07 21:05:38,613 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c14cef0d-8fd4-4006-aacf-ec87c996561d/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 21:05:38,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:05:38,753 INFO L264 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 21:05:38,755 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:05:38,759 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 21:05:38,760 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:05:38,762 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 21:05:38,762 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [34609326] [2019-12-07 21:05:38,762 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:05:38,762 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 21:05:38,762 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213545899] [2019-12-07 21:05:38,763 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 21:05:38,763 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:05:38,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 21:05:38,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 21:05:38,763 INFO L87 Difference]: Start difference. First operand 51 states and 72 transitions. Second operand 3 states. [2019-12-07 21:05:38,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:05:38,812 INFO L93 Difference]: Finished difference Result 117 states and 168 transitions. [2019-12-07 21:05:38,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 21:05:38,812 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-12-07 21:05:38,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:05:38,813 INFO L225 Difference]: With dead ends: 117 [2019-12-07 21:05:38,813 INFO L226 Difference]: Without dead ends: 72 [2019-12-07 21:05:38,814 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 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 21:05:38,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2019-12-07 21:05:38,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 70. [2019-12-07 21:05:38,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-12-07 21:05:38,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 98 transitions. [2019-12-07 21:05:38,824 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 98 transitions. Word has length 24 [2019-12-07 21:05:38,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:05:38,824 INFO L462 AbstractCegarLoop]: Abstraction has 70 states and 98 transitions. [2019-12-07 21:05:38,824 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 21:05:38,824 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 98 transitions. [2019-12-07 21:05:38,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-07 21:05:38,825 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:05:38,825 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] [2019-12-07 21:05:39,026 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 21:05:39,027 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:05:39,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:05:39,028 INFO L82 PathProgramCache]: Analyzing trace with hash 406595852, now seen corresponding path program 1 times [2019-12-07 21:05:39,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:05:39,029 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [323598390] [2019-12-07 21:05:39,030 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c14cef0d-8fd4-4006-aacf-ec87c996561d/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 21:05:39,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:05:39,195 INFO L264 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 21:05:39,197 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:05:39,214 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 21:05:39,214 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:05:39,237 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 21:05:39,237 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [323598390] [2019-12-07 21:05:39,237 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:05:39,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-12-07 21:05:39,238 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245003179] [2019-12-07 21:05:39,238 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 21:05:39,238 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:05:39,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 21:05:39,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 21:05:39,238 INFO L87 Difference]: Start difference. First operand 70 states and 98 transitions. Second operand 8 states. [2019-12-07 21:05:39,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:05:39,454 INFO L93 Difference]: Finished difference Result 518 states and 751 transitions. [2019-12-07 21:05:39,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-07 21:05:39,455 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 30 [2019-12-07 21:05:39,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:05:39,457 INFO L225 Difference]: With dead ends: 518 [2019-12-07 21:05:39,458 INFO L226 Difference]: Without dead ends: 454 [2019-12-07 21:05:39,458 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2019-12-07 21:05:39,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2019-12-07 21:05:39,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 169. [2019-12-07 21:05:39,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2019-12-07 21:05:39,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 234 transitions. [2019-12-07 21:05:39,477 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 234 transitions. Word has length 30 [2019-12-07 21:05:39,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:05:39,478 INFO L462 AbstractCegarLoop]: Abstraction has 169 states and 234 transitions. [2019-12-07 21:05:39,478 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 21:05:39,478 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 234 transitions. [2019-12-07 21:05:39,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-12-07 21:05:39,480 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:05:39,480 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 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] [2019-12-07 21:05:39,680 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 21:05:39,681 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:05:39,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:05:39,682 INFO L82 PathProgramCache]: Analyzing trace with hash -553017344, now seen corresponding path program 1 times [2019-12-07 21:05:39,683 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:05:39,683 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1040794054] [2019-12-07 21:05:39,683 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c14cef0d-8fd4-4006-aacf-ec87c996561d/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 21:05:39,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:05:39,824 INFO L264 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 21:05:39,827 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:05:39,840 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 21:05:39,840 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:05:39,845 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 21:05:39,846 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1040794054] [2019-12-07 21:05:39,846 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:05:39,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 21:05:39,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943007106] [2019-12-07 21:05:39,846 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 21:05:39,847 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:05:39,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 21:05:39,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 21:05:39,847 INFO L87 Difference]: Start difference. First operand 169 states and 234 transitions. Second operand 5 states. [2019-12-07 21:05:39,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:05:39,901 INFO L93 Difference]: Finished difference Result 458 states and 627 transitions. [2019-12-07 21:05:39,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 21:05:39,902 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2019-12-07 21:05:39,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:05:39,903 INFO L225 Difference]: With dead ends: 458 [2019-12-07 21:05:39,903 INFO L226 Difference]: Without dead ends: 295 [2019-12-07 21:05:39,904 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 99 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 21:05:39,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2019-12-07 21:05:39,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 184. [2019-12-07 21:05:39,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2019-12-07 21:05:39,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 249 transitions. [2019-12-07 21:05:39,920 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 249 transitions. Word has length 51 [2019-12-07 21:05:39,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:05:39,920 INFO L462 AbstractCegarLoop]: Abstraction has 184 states and 249 transitions. [2019-12-07 21:05:39,921 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 21:05:39,921 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 249 transitions. [2019-12-07 21:05:39,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-12-07 21:05:39,923 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:05:39,923 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 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] [2019-12-07 21:05:40,123 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 21:05:40,124 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:05:40,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:05:40,125 INFO L82 PathProgramCache]: Analyzing trace with hash 148582530, now seen corresponding path program 1 times [2019-12-07 21:05:40,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:05:40,126 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1160258759] [2019-12-07 21:05:40,127 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c14cef0d-8fd4-4006-aacf-ec87c996561d/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 21:05:40,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:05:40,287 INFO L264 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 21:05:40,289 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:05:40,297 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 21:05:40,297 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:05:40,314 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 21:05:40,314 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1160258759] [2019-12-07 21:05:40,314 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:05:40,315 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 21:05:40,315 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119614820] [2019-12-07 21:05:40,315 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 21:05:40,315 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:05:40,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 21:05:40,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 21:05:40,315 INFO L87 Difference]: Start difference. First operand 184 states and 249 transitions. Second operand 6 states. [2019-12-07 21:05:40,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:05:40,357 INFO L93 Difference]: Finished difference Result 420 states and 567 transitions. [2019-12-07 21:05:40,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 21:05:40,357 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 51 [2019-12-07 21:05:40,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:05:40,358 INFO L225 Difference]: With dead ends: 420 [2019-12-07 21:05:40,358 INFO L226 Difference]: Without dead ends: 242 [2019-12-07 21:05:40,359 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 97 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 21:05:40,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2019-12-07 21:05:40,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 154. [2019-12-07 21:05:40,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-12-07 21:05:40,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 204 transitions. [2019-12-07 21:05:40,368 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 204 transitions. Word has length 51 [2019-12-07 21:05:40,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:05:40,368 INFO L462 AbstractCegarLoop]: Abstraction has 154 states and 204 transitions. [2019-12-07 21:05:40,368 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 21:05:40,368 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 204 transitions. [2019-12-07 21:05:40,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-12-07 21:05:40,369 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:05:40,369 INFO L410 BasicCegarLoop]: trace histogram [2, 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] [2019-12-07 21:05:40,570 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 21:05:40,571 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:05:40,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:05:40,571 INFO L82 PathProgramCache]: Analyzing trace with hash -701166778, now seen corresponding path program 1 times [2019-12-07 21:05:40,572 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:05:40,572 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [55600103] [2019-12-07 21:05:40,572 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c14cef0d-8fd4-4006-aacf-ec87c996561d/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 21:05:40,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:05:40,702 INFO L264 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 21:05:40,703 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:05:40,720 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-12-07 21:05:40,720 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:05:40,725 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-12-07 21:05:40,725 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [55600103] [2019-12-07 21:05:40,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 21:05:40,726 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 21:05:40,726 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656897036] [2019-12-07 21:05:40,726 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 21:05:40,726 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:05:40,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 21:05:40,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-07 21:05:40,726 INFO L87 Difference]: Start difference. First operand 154 states and 204 transitions. Second operand 6 states. [2019-12-07 21:05:40,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:05:40,850 INFO L93 Difference]: Finished difference Result 756 states and 1034 transitions. [2019-12-07 21:05:40,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-12-07 21:05:40,850 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2019-12-07 21:05:40,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:05:40,853 INFO L225 Difference]: With dead ends: 756 [2019-12-07 21:05:40,853 INFO L226 Difference]: Without dead ends: 608 [2019-12-07 21:05:40,854 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2019-12-07 21:05:40,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2019-12-07 21:05:40,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 300. [2019-12-07 21:05:40,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2019-12-07 21:05:40,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 394 transitions. [2019-12-07 21:05:40,873 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 394 transitions. Word has length 52 [2019-12-07 21:05:40,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:05:40,873 INFO L462 AbstractCegarLoop]: Abstraction has 300 states and 394 transitions. [2019-12-07 21:05:40,873 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 21:05:40,873 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 394 transitions. [2019-12-07 21:05:40,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-12-07 21:05:40,874 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:05:40,874 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 21:05:41,074 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-12-07 21:05:41,075 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:05:41,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:05:41,075 INFO L82 PathProgramCache]: Analyzing trace with hash -1850284924, now seen corresponding path program 1 times [2019-12-07 21:05:41,075 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:05:41,076 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1572085502] [2019-12-07 21:05:41,076 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c14cef0d-8fd4-4006-aacf-ec87c996561d/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 21:05:41,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:05:41,168 INFO L264 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 21:05:41,170 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:05:41,181 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 17 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 21:05:41,181 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:05:41,201 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 17 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 21:05:41,201 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1572085502] [2019-12-07 21:05:41,201 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1327971961] [2019-12-07 21:05:41,201 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c14cef0d-8fd4-4006-aacf-ec87c996561d/bin/utaipan/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 21:05:41,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:05:41,308 INFO L264 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 21:05:41,309 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:05:41,331 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-12-07 21:05:41,331 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:05:41,334 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-12-07 21:05:41,334 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2019-12-07 21:05:41,334 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [3, 3] total 9 [2019-12-07 21:05:41,334 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918772412] [2019-12-07 21:05:41,335 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 21:05:41,335 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:05:41,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 21:05:41,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-12-07 21:05:41,335 INFO L87 Difference]: Start difference. First operand 300 states and 394 transitions. Second operand 5 states. [2019-12-07 21:05:41,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:05:41,498 INFO L93 Difference]: Finished difference Result 800 states and 1059 transitions. [2019-12-07 21:05:41,498 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 21:05:41,498 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 53 [2019-12-07 21:05:41,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:05:41,502 INFO L225 Difference]: With dead ends: 800 [2019-12-07 21:05:41,502 INFO L226 Difference]: Without dead ends: 798 [2019-12-07 21:05:41,502 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2019-12-07 21:05:41,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2019-12-07 21:05:41,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 300. [2019-12-07 21:05:41,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2019-12-07 21:05:41,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 392 transitions. [2019-12-07 21:05:41,529 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 392 transitions. Word has length 53 [2019-12-07 21:05:41,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:05:41,529 INFO L462 AbstractCegarLoop]: Abstraction has 300 states and 392 transitions. [2019-12-07 21:05:41,529 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 21:05:41,529 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 392 transitions. [2019-12-07 21:05:41,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-12-07 21:05:41,530 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:05:41,530 INFO L410 BasicCegarLoop]: trace histogram [2, 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 21:05:41,931 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3,11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 21:05:41,931 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:05:41,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:05:41,932 INFO L82 PathProgramCache]: Analyzing trace with hash -956023316, now seen corresponding path program 1 times [2019-12-07 21:05:41,932 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:05:41,932 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [701289] [2019-12-07 21:05:41,932 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c14cef0d-8fd4-4006-aacf-ec87c996561d/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 21:05:42,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:05:42,031 INFO L264 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 21:05:42,033 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:05:42,059 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 21:05:42,059 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:05:42,091 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 21:05:42,091 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [701289] [2019-12-07 21:05:42,091 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1894010433] [2019-12-07 21:05:42,092 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c14cef0d-8fd4-4006-aacf-ec87c996561d/bin/utaipan/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 21:05:42,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:05:42,185 INFO L264 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 21:05:42,187 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:05:42,192 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 21:05:42,193 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:05:42,198 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 21:05:42,198 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815019304] [2019-12-07 21:05:42,198 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c14cef0d-8fd4-4006-aacf-ec87c996561d/bin/utaipan/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 21:05:42,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 21:05:42,344 INFO L264 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 21:05:42,345 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 21:05:42,354 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 21:05:42,354 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 21:05:42,359 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 21:05:42,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2019-12-07 21:05:42,359 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 9 [2019-12-07 21:05:42,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929202674] [2019-12-07 21:05:42,360 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 21:05:42,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 21:05:42,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 21:05:42,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-12-07 21:05:42,360 INFO L87 Difference]: Start difference. First operand 300 states and 392 transitions. Second operand 10 states. [2019-12-07 21:05:42,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 21:05:42,939 INFO L93 Difference]: Finished difference Result 1973 states and 2625 transitions. [2019-12-07 21:05:42,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-12-07 21:05:42,939 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 53 [2019-12-07 21:05:42,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 21:05:42,946 INFO L225 Difference]: With dead ends: 1973 [2019-12-07 21:05:42,946 INFO L226 Difference]: Without dead ends: 1727 [2019-12-07 21:05:42,947 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 302 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2019-12-07 21:05:42,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1727 states. [2019-12-07 21:05:42,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1727 to 538. [2019-12-07 21:05:42,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-07 21:05:42,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 714 transitions. [2019-12-07 21:05:42,985 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 714 transitions. Word has length 53 [2019-12-07 21:05:42,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 21:05:42,985 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 714 transitions. [2019-12-07 21:05:42,985 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 21:05:42,985 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 714 transitions. [2019-12-07 21:05:42,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-12-07 21:05:42,986 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 21:05:42,986 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-12-07 21:05:43,587 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 cvc4 --incremental --print-success --lang smt --rewrite-divk,12 mathsat -unsat_core_generation=3 [2019-12-07 21:05:43,588 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 21:05:43,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 21:05:43,589 INFO L82 PathProgramCache]: Analyzing trace with hash -1396677984, now seen corresponding path program 2 times [2019-12-07 21:05:43,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 21:05:43,590 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [90675202] [2019-12-07 21:05:43,590 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c14cef0d-8fd4-4006-aacf-ec87c996561d/bin/utaipan/mathsat Starting monitored process 15 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with mathsat -unsat_core_generation=3 [2019-12-07 21:05:44,300 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 21:05:44,300 INFO L250 tOrderPrioritization]: Conjunction of SSA is sat [2019-12-07 21:05:45,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 21:05:45,414 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 21:05:45,414 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 21:05:45,615 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 mathsat -unsat_core_generation=3 [2019-12-07 21:05:45,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 09:05:45 BoogieIcfgContainer [2019-12-07 21:05:45,725 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 21:05:45,726 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 21:05:45,726 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 21:05:45,726 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 21:05:45,726 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 09:05:37" (3/4) ... [2019-12-07 21:05:45,728 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 21:05:45,811 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c14cef0d-8fd4-4006-aacf-ec87c996561d/bin/utaipan/witness.graphml [2019-12-07 21:05:45,811 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 21:05:45,813 INFO L168 Benchmark]: Toolchain (without parser) took 9517.36 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 323.5 MB). Free memory was 947.0 MB in the beginning and 955.9 MB in the end (delta: -8.9 MB). Peak memory consumption was 314.6 MB. Max. memory is 11.5 GB. [2019-12-07 21:05:45,813 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 21:05:45,813 INFO L168 Benchmark]: CACSL2BoogieTranslator took 388.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -155.7 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. [2019-12-07 21:05:45,813 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-07 21:05:45,813 INFO L168 Benchmark]: Boogie Preprocessor took 35.38 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 21:05:45,814 INFO L168 Benchmark]: RCFGBuilder took 591.59 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: 78.2 MB). Peak memory consumption was 78.2 MB. Max. memory is 11.5 GB. [2019-12-07 21:05:45,814 INFO L168 Benchmark]: TraceAbstraction took 8365.94 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 189.8 MB). Free memory was 1.0 GB in the beginning and 982.7 MB in the end (delta: 35.1 MB). Peak memory consumption was 224.9 MB. Max. memory is 11.5 GB. [2019-12-07 21:05:45,814 INFO L168 Benchmark]: Witness Printer took 85.62 ms. Allocated memory is still 1.4 GB. Free memory was 982.7 MB in the beginning and 955.9 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2019-12-07 21:05:45,815 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 388.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -155.7 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.38 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 591.59 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: 78.2 MB). Peak memory consumption was 78.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8365.94 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 189.8 MB). Free memory was 1.0 GB in the beginning and 982.7 MB in the end (delta: 35.1 MB). Peak memory consumption was 224.9 MB. Max. memory is 11.5 GB. * Witness Printer took 85.62 ms. Allocated memory is still 1.4 GB. Free memory was 982.7 MB in the beginning and 955.9 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 317]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L117] int pumpRunning = 0; [L118] int systemActive = 1; [L491] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L715] int cleanupTimeShifts = 4; [L814] int waterLevel = 1; [L815] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L791] int retValue_acc ; [L792] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L934] int retValue_acc ; [L937] retValue_acc = 1 [L938] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L798] tmp = valid_product() [L800] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L45] int splverifierCounter ; [L46] int tmp ; [L47] int tmp___0 ; [L48] int tmp___1 ; [L49] int tmp___2 ; [L52] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L54] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L56] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L62] tmp = __VERIFIER_nondet_int() [L64] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L832] COND TRUE waterLevel < 2 [L833] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L72] tmp___0 = __VERIFIER_nondet_int() [L74] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L82] tmp___2 = __VERIFIER_nondet_int() [L84] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L125] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L132] COND TRUE \read(systemActive) [L180] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L183] COND FALSE !(\read(pumpRunning)) [L154] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L157] COND TRUE ! pumpRunning [L294] int retValue_acc ; [L295] int tmp ; [L296] int tmp___0 ; [L894] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L897] COND FALSE !(waterLevel < 2) [L901] retValue_acc = 0 [L902] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L300] tmp = isHighWaterSensorDry() [L302] COND FALSE !(\read(tmp)) [L305] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L307] retValue_acc = tmp___0 [L308] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L159] tmp = isHighWaterLevel() [L161] COND TRUE \read(tmp) [L213] int tmp ; [L238] int retValue_acc ; [L853] int retValue_acc ; [L856] retValue_acc = methaneLevelCritical [L857] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L242] retValue_acc = isMethaneLevelCritical() [L244] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L217] tmp = isMethaneAlarm() [L219] COND FALSE !(\read(tmp)) [L208] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L690] int tmp ; [L691] int tmp___0 ; [L885] int retValue_acc ; [L888] retValue_acc = waterLevel [L889] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L695] tmp = getWaterLevel() [L697] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L54] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L56] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L62] tmp = __VERIFIER_nondet_int() [L64] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L72] tmp___0 = __VERIFIER_nondet_int() [L74] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L82] tmp___2 = __VERIFIER_nondet_int() [L84] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L125] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L820] COND TRUE waterLevel > 0 [L821] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L132] COND TRUE \read(systemActive) [L180] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L183] COND TRUE \read(pumpRunning) [L238] int retValue_acc ; [L853] int retValue_acc ; [L856] retValue_acc = methaneLevelCritical [L857] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L242] retValue_acc = isMethaneLevelCritical() [L244] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L185] tmp = isMethaneAlarm() [L187] COND FALSE !(\read(tmp)) [L154] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L157] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L690] int tmp ; [L691] int tmp___0 ; [L885] int retValue_acc ; [L888] retValue_acc = waterLevel [L889] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L695] tmp = getWaterLevel() [L697] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L54] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L56] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L62] tmp = __VERIFIER_nondet_int() [L64] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L72] tmp___0 = __VERIFIER_nondet_int() [L74] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L82] tmp___2 = __VERIFIER_nondet_int() [L84] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L125] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L820] COND TRUE waterLevel > 0 [L821] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L132] COND TRUE \read(systemActive) [L180] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L183] COND TRUE \read(pumpRunning) [L238] int retValue_acc ; [L853] int retValue_acc ; [L856] retValue_acc = methaneLevelCritical [L857] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L242] retValue_acc = isMethaneLevelCritical() [L244] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L185] tmp = isMethaneAlarm() [L187] COND FALSE !(\read(tmp)) [L154] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L157] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L690] int tmp ; [L691] int tmp___0 ; [L885] int retValue_acc ; [L888] retValue_acc = waterLevel [L889] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L695] tmp = getWaterLevel() [L697] COND TRUE tmp == 0 [L249] int retValue_acc ; [L252] retValue_acc = pumpRunning [L253] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L699] tmp___0 = isPumpRunning() [L701] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L317] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 129 locations, 3 error locations. Result: UNSAFE, OverallTime: 8.2s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 1165 SDtfs, 2631 SDslu, 2793 SDs, 0 SdLazy, 486 SolverSat, 118 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1076 GetRequests, 997 SyntacticMatches, 2 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=538occurred in iteration=10, 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, 10 MinimizatonAttempts, 2481 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 600 NumberOfCodeBlocks, 600 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1030 ConstructedInterpolants, 0 QuantifiedInterpolants, 130919 SizeOfPredicates, 32 NumberOfNonLiveVariables, 2719 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 26 InterpolantComputations, 18 PerfectInterpolantSequences, 192/256 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...