./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product43.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3dbf1698-6265-4fca-9b73-4246b93af8ed/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3dbf1698-6265-4fca-9b73-4246b93af8ed/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3dbf1698-6265-4fca-9b73-4246b93af8ed/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3dbf1698-6265-4fca-9b73-4246b93af8ed/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product43.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3dbf1698-6265-4fca-9b73-4246b93af8ed/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3dbf1698-6265-4fca-9b73-4246b93af8ed/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 437b76c0cd9dd6f0417f690a0c81e41159d0829e ...................................................................................................................................... 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_3dbf1698-6265-4fca-9b73-4246b93af8ed/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3dbf1698-6265-4fca-9b73-4246b93af8ed/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3dbf1698-6265-4fca-9b73-4246b93af8ed/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3dbf1698-6265-4fca-9b73-4246b93af8ed/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product43.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3dbf1698-6265-4fca-9b73-4246b93af8ed/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3dbf1698-6265-4fca-9b73-4246b93af8ed/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 437b76c0cd9dd6f0417f690a0c81e41159d0829e ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 15:58:27,951 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:58:27,952 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:58:27,962 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:58:27,962 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:58:27,962 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:58:27,964 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:58:27,965 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:58:27,967 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:58:27,967 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:58:27,968 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:58:27,969 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:58:27,969 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:58:27,970 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:58:27,970 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:58:27,971 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:58:27,972 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:58:27,972 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:58:27,973 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:58:27,975 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:58:27,976 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:58:27,977 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:58:27,977 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:58:27,978 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:58:27,979 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:58:27,979 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:58:27,980 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:58:27,980 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:58:27,980 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:58:27,981 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:58:27,981 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:58:27,981 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:58:27,982 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:58:27,982 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:58:27,983 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:58:27,983 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:58:27,984 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:58:27,984 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:58:27,984 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:58:27,985 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:58:27,986 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:58:27,986 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3dbf1698-6265-4fca-9b73-4246b93af8ed/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 15:58:27,999 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:58:28,000 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:58:28,000 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 15:58:28,000 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 15:58:28,001 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 15:58:28,001 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 15:58:28,001 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 15:58:28,001 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 15:58:28,001 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 15:58:28,002 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 15:58:28,002 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 15:58:28,002 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 15:58:28,002 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 15:58:28,002 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 15:58:28,003 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 15:58:28,003 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:58:28,003 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:58:28,004 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 15:58:28,004 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:58:28,004 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:58:28,004 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 15:58:28,004 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:58:28,004 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 15:58:28,005 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 15:58:28,005 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:58:28,005 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 15:58:28,005 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:58:28,005 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 15:58:28,005 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:58:28,005 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:58:28,006 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:58:28,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:58:28,006 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:58:28,006 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:58:28,006 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 15:58:28,006 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 15:58:28,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 15:58:28,007 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 15:58:28,007 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:58:28,007 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 15:58:28,007 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_3dbf1698-6265-4fca-9b73-4246b93af8ed/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 -> 437b76c0cd9dd6f0417f690a0c81e41159d0829e [2019-12-07 15:58:28,110 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:58:28,120 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:58:28,122 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:58:28,123 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:58:28,124 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:58:28,124 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3dbf1698-6265-4fca-9b73-4246b93af8ed/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product43.cil.c [2019-12-07 15:58:28,169 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3dbf1698-6265-4fca-9b73-4246b93af8ed/bin/utaipan/data/a28d49e41/9b5e3d8308ea459fa83cdda2683dfa24/FLAGbc4ad4918 [2019-12-07 15:58:28,624 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:58:28,624 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3dbf1698-6265-4fca-9b73-4246b93af8ed/sv-benchmarks/c/product-lines/minepump_spec4_product43.cil.c [2019-12-07 15:58:28,632 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3dbf1698-6265-4fca-9b73-4246b93af8ed/bin/utaipan/data/a28d49e41/9b5e3d8308ea459fa83cdda2683dfa24/FLAGbc4ad4918 [2019-12-07 15:58:28,641 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3dbf1698-6265-4fca-9b73-4246b93af8ed/bin/utaipan/data/a28d49e41/9b5e3d8308ea459fa83cdda2683dfa24 [2019-12-07 15:58:28,643 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:58:28,643 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:58:28,644 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:58:28,644 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:58:28,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:58:28,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:58:28" (1/1) ... [2019-12-07 15:58:28,649 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b211215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:58:28, skipping insertion in model container [2019-12-07 15:58:28,649 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:58:28" (1/1) ... [2019-12-07 15:58:28,654 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:58:28,681 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:58:28,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:58:28,927 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2019-12-07 15:58:28,927 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@218b722b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:58:28, skipping insertion in model container [2019-12-07 15:58:28,927 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:58:28,928 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 15:58:28,930 INFO L168 Benchmark]: Toolchain (without parser) took 285.40 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 942.6 MB in the beginning and 1.1 GB in the end (delta: -145.8 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-12-07 15:58:28,930 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 957.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:58:28,931 INFO L168 Benchmark]: CACSL2BoogieTranslator took 283.65 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 937.2 MB in the beginning and 1.1 GB in the end (delta: -151.2 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-12-07 15:58:28,932 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 957.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 283.65 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 937.2 MB in the beginning and 1.1 GB in the end (delta: -151.2 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 572]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 15:58:30,094 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:58:30,095 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:58:30,103 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:58:30,103 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:58:30,103 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:58:30,104 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:58:30,106 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:58:30,107 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:58:30,108 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:58:30,108 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:58:30,109 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:58:30,109 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:58:30,110 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:58:30,110 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:58:30,111 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:58:30,112 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:58:30,112 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:58:30,114 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:58:30,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:58:30,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:58:30,117 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:58:30,118 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:58:30,118 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:58:30,120 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:58:30,120 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:58:30,120 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:58:30,121 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:58:30,121 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:58:30,122 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:58:30,122 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:58:30,123 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:58:30,123 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:58:30,124 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:58:30,124 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:58:30,124 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:58:30,125 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:58:30,125 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:58:30,125 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:58:30,126 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:58:30,126 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:58:30,127 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3dbf1698-6265-4fca-9b73-4246b93af8ed/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 15:58:30,137 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:58:30,137 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:58:30,137 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 15:58:30,138 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 15:58:30,138 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 15:58:30,138 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 15:58:30,138 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 15:58:30,138 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 15:58:30,138 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 15:58:30,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:58:30,139 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:58:30,139 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:58:30,139 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:58:30,139 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 15:58:30,139 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:58:30,139 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 15:58:30,140 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 15:58:30,140 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 15:58:30,140 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 15:58:30,140 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:58:30,140 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 15:58:30,140 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:58:30,140 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 15:58:30,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:58:30,141 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 15:58:30,141 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:58:30,141 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:58:30,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:58:30,141 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:58:30,141 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:58:30,141 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 15:58:30,141 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 15:58:30,142 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 15:58:30,142 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 15:58:30,142 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:58:30,142 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 15:58:30,142 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_3dbf1698-6265-4fca-9b73-4246b93af8ed/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 -> 437b76c0cd9dd6f0417f690a0c81e41159d0829e [2019-12-07 15:58:30,320 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:58:30,327 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:58:30,330 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:58:30,331 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:58:30,331 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:58:30,331 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3dbf1698-6265-4fca-9b73-4246b93af8ed/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product43.cil.c [2019-12-07 15:58:30,368 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3dbf1698-6265-4fca-9b73-4246b93af8ed/bin/utaipan/data/56605f4f9/094224d23d824f9d86f0b799435a8662/FLAGb7adac7f0 [2019-12-07 15:58:30,840 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:58:30,840 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3dbf1698-6265-4fca-9b73-4246b93af8ed/sv-benchmarks/c/product-lines/minepump_spec4_product43.cil.c [2019-12-07 15:58:30,850 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3dbf1698-6265-4fca-9b73-4246b93af8ed/bin/utaipan/data/56605f4f9/094224d23d824f9d86f0b799435a8662/FLAGb7adac7f0 [2019-12-07 15:58:30,859 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3dbf1698-6265-4fca-9b73-4246b93af8ed/bin/utaipan/data/56605f4f9/094224d23d824f9d86f0b799435a8662 [2019-12-07 15:58:30,861 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:58:30,862 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:58:30,863 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:58:30,863 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:58:30,865 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:58:30,865 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:58:30" (1/1) ... [2019-12-07 15:58:30,867 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b70e7d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:58:30, skipping insertion in model container [2019-12-07 15:58:30,867 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:58:30" (1/1) ... [2019-12-07 15:58:30,872 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:58:30,899 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:58:31,111 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:58:31,121 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 15:58:31,126 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:58:31,167 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:58:31,171 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:58:31,214 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:58:31,237 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:58:31,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:58:31 WrapperNode [2019-12-07 15:58:31,238 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:58:31,238 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 15:58:31,238 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 15:58:31,238 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 15:58:31,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:58:31" (1/1) ... [2019-12-07 15:58:31,257 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:58:31" (1/1) ... [2019-12-07 15:58:31,281 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 15:58:31,281 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:58:31,281 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:58:31,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:58:31,288 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:58:31" (1/1) ... [2019-12-07 15:58:31,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:58:31" (1/1) ... [2019-12-07 15:58:31,292 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:58:31" (1/1) ... [2019-12-07 15:58:31,292 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:58:31" (1/1) ... [2019-12-07 15:58:31,301 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:58:31" (1/1) ... [2019-12-07 15:58:31,306 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:58:31" (1/1) ... [2019-12-07 15:58:31,308 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:58:31" (1/1) ... [2019-12-07 15:58:31,312 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:58:31,312 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:58:31,312 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:58:31,312 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:58:31,313 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:58:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3dbf1698-6265-4fca-9b73-4246b93af8ed/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:58:31,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 15:58:31,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 15:58:31,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:58:31,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:58:31,831 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:58:31,831 INFO L287 CfgBuilder]: Removed 118 assume(true) statements. [2019-12-07 15:58:31,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:58:31 BoogieIcfgContainer [2019-12-07 15:58:31,832 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:58:31,834 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 15:58:31,834 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 15:58:31,836 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 15:58:31,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 03:58:30" (1/3) ... [2019-12-07 15:58:31,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6629b161 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:58:31, skipping insertion in model container [2019-12-07 15:58:31,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:58:31" (2/3) ... [2019-12-07 15:58:31,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6629b161 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:58:31, skipping insertion in model container [2019-12-07 15:58:31,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:58:31" (3/3) ... [2019-12-07 15:58:31,839 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product43.cil.c [2019-12-07 15:58:31,848 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 15:58:31,855 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 15:58:31,863 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 15:58:31,879 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 15:58:31,879 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 15:58:31,879 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 15:58:31,879 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:58:31,879 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:58:31,880 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 15:58:31,880 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:58:31,880 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 15:58:31,891 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2019-12-07 15:58:31,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 15:58:31,895 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:58:31,896 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:58:31,896 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:58:31,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:58:31,900 INFO L82 PathProgramCache]: Analyzing trace with hash 929673937, now seen corresponding path program 1 times [2019-12-07 15:58:31,908 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:58:31,908 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1878700454] [2019-12-07 15:58:31,909 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3dbf1698-6265-4fca-9b73-4246b93af8ed/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 15:58:32,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:58:32,048 INFO L264 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 15:58:32,052 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:58:32,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:58:32,063 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:58:32,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:58:32,068 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1878700454] [2019-12-07 15:58:32,069 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:58:32,069 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 15:58:32,070 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8142924] [2019-12-07 15:58:32,073 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 15:58:32,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:58:32,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 15:58:32,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 15:58:32,084 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 2 states. [2019-12-07 15:58:32,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:58:32,104 INFO L93 Difference]: Finished difference Result 172 states and 257 transitions. [2019-12-07 15:58:32,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 15:58:32,105 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-12-07 15:58:32,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:58:32,115 INFO L225 Difference]: With dead ends: 172 [2019-12-07 15:58:32,116 INFO L226 Difference]: Without dead ends: 85 [2019-12-07 15:58:32,119 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 15:58:32,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2019-12-07 15:58:32,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2019-12-07 15:58:32,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-12-07 15:58:32,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 120 transitions. [2019-12-07 15:58:32,152 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 120 transitions. Word has length 16 [2019-12-07 15:58:32,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:58:32,153 INFO L462 AbstractCegarLoop]: Abstraction has 85 states and 120 transitions. [2019-12-07 15:58:32,153 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 15:58:32,153 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 120 transitions. [2019-12-07 15:58:32,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 15:58:32,154 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:58:32,154 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 15:58:32,355 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 15:58:32,356 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:58:32,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:58:32,357 INFO L82 PathProgramCache]: Analyzing trace with hash -117082960, now seen corresponding path program 1 times [2019-12-07 15:58:32,358 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:58:32,359 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1543910201] [2019-12-07 15:58:32,359 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3dbf1698-6265-4fca-9b73-4246b93af8ed/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 15:58:32,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:58:32,526 INFO L264 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 15:58:32,527 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:58:32,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:58:32,543 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:58:32,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:58:32,552 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1543910201] [2019-12-07 15:58:32,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:58:32,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 15:58:32,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782445692] [2019-12-07 15:58:32,554 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 15:58:32,554 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:58:32,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 15:58:32,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:58:32,555 INFO L87 Difference]: Start difference. First operand 85 states and 120 transitions. Second operand 4 states. [2019-12-07 15:58:32,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:58:32,568 INFO L93 Difference]: Finished difference Result 85 states and 120 transitions. [2019-12-07 15:58:32,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 15:58:32,569 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-12-07 15:58:32,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:58:32,570 INFO L225 Difference]: With dead ends: 85 [2019-12-07 15:58:32,570 INFO L226 Difference]: Without dead ends: 39 [2019-12-07 15:58:32,571 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 15:58:32,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-12-07 15:58:32,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-12-07 15:58:32,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-12-07 15:58:32,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 55 transitions. [2019-12-07 15:58:32,577 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 55 transitions. Word has length 17 [2019-12-07 15:58:32,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:58:32,577 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 55 transitions. [2019-12-07 15:58:32,577 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 15:58:32,577 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2019-12-07 15:58:32,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 15:58:32,578 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:58:32,579 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 15:58:32,779 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 15:58:32,779 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:58:32,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:58:32,780 INFO L82 PathProgramCache]: Analyzing trace with hash 337421565, now seen corresponding path program 1 times [2019-12-07 15:58:32,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:58:32,780 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [362203763] [2019-12-07 15:58:32,780 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3dbf1698-6265-4fca-9b73-4246b93af8ed/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 15:58:32,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:58:32,883 INFO L264 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 15:58:32,884 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:58:32,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:58:32,892 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:58:32,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:58:32,898 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [362203763] [2019-12-07 15:58:32,899 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:58:32,899 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 15:58:32,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790062191] [2019-12-07 15:58:32,899 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 15:58:32,899 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:58:32,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 15:58:32,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 15:58:32,900 INFO L87 Difference]: Start difference. First operand 39 states and 55 transitions. Second operand 4 states. [2019-12-07 15:58:32,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:58:32,915 INFO L93 Difference]: Finished difference Result 128 states and 187 transitions. [2019-12-07 15:58:32,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 15:58:32,916 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2019-12-07 15:58:32,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:58:32,917 INFO L225 Difference]: With dead ends: 128 [2019-12-07 15:58:32,917 INFO L226 Difference]: Without dead ends: 95 [2019-12-07 15:58:32,917 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 15:58:32,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-12-07 15:58:32,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 58. [2019-12-07 15:58:32,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-12-07 15:58:32,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 84 transitions. [2019-12-07 15:58:32,925 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 84 transitions. Word has length 22 [2019-12-07 15:58:32,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:58:32,925 INFO L462 AbstractCegarLoop]: Abstraction has 58 states and 84 transitions. [2019-12-07 15:58:32,925 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 15:58:32,926 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 84 transitions. [2019-12-07 15:58:32,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-12-07 15:58:32,926 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:58:32,926 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] [2019-12-07 15:58:33,127 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 15:58:33,128 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:58:33,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:58:33,129 INFO L82 PathProgramCache]: Analyzing trace with hash -1224569535, now seen corresponding path program 1 times [2019-12-07 15:58:33,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:58:33,131 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [539509246] [2019-12-07 15:58:33,131 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3dbf1698-6265-4fca-9b73-4246b93af8ed/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-12-07 15:58:33,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:58:33,274 INFO L264 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 15:58:33,275 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:58:33,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:58:33,280 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:58:33,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:58:33,283 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [539509246] [2019-12-07 15:58:33,283 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:58:33,283 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 15:58:33,283 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76315045] [2019-12-07 15:58:33,283 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 15:58:33,284 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:58:33,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 15:58:33,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 15:58:33,284 INFO L87 Difference]: Start difference. First operand 58 states and 84 transitions. Second operand 3 states. [2019-12-07 15:58:33,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:58:33,330 INFO L93 Difference]: Finished difference Result 131 states and 192 transitions. [2019-12-07 15:58:33,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 15:58:33,331 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-12-07 15:58:33,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:58:33,332 INFO L225 Difference]: With dead ends: 131 [2019-12-07 15:58:33,332 INFO L226 Difference]: Without dead ends: 79 [2019-12-07 15:58:33,332 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 15:58:33,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2019-12-07 15:58:33,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 77. [2019-12-07 15:58:33,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-12-07 15:58:33,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 109 transitions. [2019-12-07 15:58:33,341 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 109 transitions. Word has length 23 [2019-12-07 15:58:33,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:58:33,342 INFO L462 AbstractCegarLoop]: Abstraction has 77 states and 109 transitions. [2019-12-07 15:58:33,342 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 15:58:33,342 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 109 transitions. [2019-12-07 15:58:33,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 15:58:33,343 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:58:33,343 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:58:33,544 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 15:58:33,545 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:58:33,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:58:33,546 INFO L82 PathProgramCache]: Analyzing trace with hash -840484654, now seen corresponding path program 1 times [2019-12-07 15:58:33,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:58:33,548 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1714207294] [2019-12-07 15:58:33,548 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3dbf1698-6265-4fca-9b73-4246b93af8ed/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-12-07 15:58:33,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:58:33,739 INFO L264 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 15:58:33,740 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:58:33,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:58:33,755 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:58:33,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:58:33,777 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1714207294] [2019-12-07 15:58:33,777 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:58:33,777 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-12-07 15:58:33,777 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154978779] [2019-12-07 15:58:33,778 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 15:58:33,778 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:58:33,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 15:58:33,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 15:58:33,778 INFO L87 Difference]: Start difference. First operand 77 states and 109 transitions. Second operand 8 states. [2019-12-07 15:58:33,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:58:33,983 INFO L93 Difference]: Finished difference Result 540 states and 790 transitions. [2019-12-07 15:58:33,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-07 15:58:33,983 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2019-12-07 15:58:33,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:58:33,986 INFO L225 Difference]: With dead ends: 540 [2019-12-07 15:58:33,986 INFO L226 Difference]: Without dead ends: 469 [2019-12-07 15:58:33,987 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 42 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 15:58:33,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2019-12-07 15:58:34,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 198. [2019-12-07 15:58:34,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2019-12-07 15:58:34,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 275 transitions. [2019-12-07 15:58:34,012 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 275 transitions. Word has length 25 [2019-12-07 15:58:34,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:58:34,012 INFO L462 AbstractCegarLoop]: Abstraction has 198 states and 275 transitions. [2019-12-07 15:58:34,012 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 15:58:34,012 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 275 transitions. [2019-12-07 15:58:34,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-07 15:58:34,014 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:58:34,014 INFO L410 BasicCegarLoop]: trace histogram [2, 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] [2019-12-07 15:58:34,214 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 15:58:34,216 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:58:34,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:58:34,217 INFO L82 PathProgramCache]: Analyzing trace with hash -249317709, now seen corresponding path program 1 times [2019-12-07 15:58:34,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:58:34,219 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1336543080] [2019-12-07 15:58:34,219 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3dbf1698-6265-4fca-9b73-4246b93af8ed/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2019-12-07 15:58:34,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:58:34,507 INFO L264 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 15:58:34,509 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:58:34,521 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:58:34,521 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:58:34,545 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:58:34,546 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1336543080] [2019-12-07 15:58:34,546 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [120577188] [2019-12-07 15:58:34,546 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3dbf1698-6265-4fca-9b73-4246b93af8ed/bin/utaipan/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 15:58:34,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:58:34,643 INFO L264 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 15:58:34,645 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:58:34,667 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-12-07 15:58:34,668 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:58:34,670 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-12-07 15:58:34,670 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2019-12-07 15:58:34,670 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [3, 3] total 9 [2019-12-07 15:58:34,671 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241217619] [2019-12-07 15:58:34,671 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 15:58:34,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:58:34,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 15:58:34,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-12-07 15:58:34,671 INFO L87 Difference]: Start difference. First operand 198 states and 275 transitions. Second operand 5 states. [2019-12-07 15:58:34,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:58:34,808 INFO L93 Difference]: Finished difference Result 456 states and 644 transitions. [2019-12-07 15:58:34,809 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 15:58:34,809 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 40 [2019-12-07 15:58:34,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:58:34,811 INFO L225 Difference]: With dead ends: 456 [2019-12-07 15:58:34,811 INFO L226 Difference]: Without dead ends: 454 [2019-12-07 15:58:34,812 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 152 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 15:58:34,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2019-12-07 15:58:34,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 198. [2019-12-07 15:58:34,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2019-12-07 15:58:34,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 273 transitions. [2019-12-07 15:58:34,826 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 273 transitions. Word has length 40 [2019-12-07 15:58:34,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:58:34,826 INFO L462 AbstractCegarLoop]: Abstraction has 198 states and 273 transitions. [2019-12-07 15:58:34,826 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 15:58:34,826 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 273 transitions. [2019-12-07 15:58:34,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-12-07 15:58:34,828 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:58:34,828 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] [2019-12-07 15:58:35,229 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3,8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 15:58:35,230 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:58:35,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:58:35,231 INFO L82 PathProgramCache]: Analyzing trace with hash -108849228, now seen corresponding path program 1 times [2019-12-07 15:58:35,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:58:35,233 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1051222533] [2019-12-07 15:58:35,233 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3dbf1698-6265-4fca-9b73-4246b93af8ed/bin/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2019-12-07 15:58:35,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:58:35,382 INFO L264 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 15:58:35,384 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:58:35,394 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 15:58:35,394 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:58:35,397 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 15:58:35,397 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1051222533] [2019-12-07 15:58:35,397 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:58:35,398 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 15:58:35,398 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741310174] [2019-12-07 15:58:35,398 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 15:58:35,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:58:35,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 15:58:35,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 15:58:35,398 INFO L87 Difference]: Start difference. First operand 198 states and 273 transitions. Second operand 5 states. [2019-12-07 15:58:35,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:58:35,444 INFO L93 Difference]: Finished difference Result 610 states and 837 transitions. [2019-12-07 15:58:35,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 15:58:35,444 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2019-12-07 15:58:35,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:58:35,446 INFO L225 Difference]: With dead ends: 610 [2019-12-07 15:58:35,446 INFO L226 Difference]: Without dead ends: 418 [2019-12-07 15:58:35,448 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 15:58:35,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2019-12-07 15:58:35,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 207. [2019-12-07 15:58:35,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2019-12-07 15:58:35,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 282 transitions. [2019-12-07 15:58:35,464 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 282 transitions. Word has length 47 [2019-12-07 15:58:35,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:58:35,465 INFO L462 AbstractCegarLoop]: Abstraction has 207 states and 282 transitions. [2019-12-07 15:58:35,465 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 15:58:35,465 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 282 transitions. [2019-12-07 15:58:35,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-12-07 15:58:35,466 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:58:35,467 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] [2019-12-07 15:58:35,667 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-12-07 15:58:35,667 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:58:35,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:58:35,668 INFO L82 PathProgramCache]: Analyzing trace with hash -618322318, now seen corresponding path program 1 times [2019-12-07 15:58:35,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:58:35,668 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [881433979] [2019-12-07 15:58:35,668 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3dbf1698-6265-4fca-9b73-4246b93af8ed/bin/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2019-12-07 15:58:35,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:58:35,771 INFO L264 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 15:58:35,773 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:58:35,781 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 15:58:35,781 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:58:35,796 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 15:58:35,796 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [881433979] [2019-12-07 15:58:35,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:58:35,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 15:58:35,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347560457] [2019-12-07 15:58:35,797 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 15:58:35,797 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:58:35,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 15:58:35,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 15:58:35,797 INFO L87 Difference]: Start difference. First operand 207 states and 282 transitions. Second operand 6 states. [2019-12-07 15:58:35,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:58:35,837 INFO L93 Difference]: Finished difference Result 542 states and 741 transitions. [2019-12-07 15:58:35,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 15:58:35,837 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 47 [2019-12-07 15:58:35,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:58:35,839 INFO L225 Difference]: With dead ends: 542 [2019-12-07 15:58:35,839 INFO L226 Difference]: Without dead ends: 341 [2019-12-07 15:58:35,840 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 15:58:35,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2019-12-07 15:58:35,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 180. [2019-12-07 15:58:35,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2019-12-07 15:58:35,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 242 transitions. [2019-12-07 15:58:35,860 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 242 transitions. Word has length 47 [2019-12-07 15:58:35,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:58:35,860 INFO L462 AbstractCegarLoop]: Abstraction has 180 states and 242 transitions. [2019-12-07 15:58:35,860 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 15:58:35,860 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 242 transitions. [2019-12-07 15:58:35,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-12-07 15:58:35,861 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:58:35,861 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] [2019-12-07 15:58:36,062 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2019-12-07 15:58:36,064 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:58:36,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:58:36,065 INFO L82 PathProgramCache]: Analyzing trace with hash -423849614, now seen corresponding path program 1 times [2019-12-07 15:58:36,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:58:36,066 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [548248328] [2019-12-07 15:58:36,067 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3dbf1698-6265-4fca-9b73-4246b93af8ed/bin/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2019-12-07 15:58:36,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:58:36,220 INFO L264 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 15:58:36,222 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:58:36,240 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 15:58:36,240 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:58:36,279 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 15:58:36,279 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [548248328] [2019-12-07 15:58:36,279 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [853990452] [2019-12-07 15:58:36,279 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3dbf1698-6265-4fca-9b73-4246b93af8ed/bin/utaipan/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 15:58:36,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:58:36,367 INFO L264 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 15:58:36,368 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:58:36,373 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 15:58:36,373 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:58:36,378 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 15:58:36,378 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592979424] [2019-12-07 15:58:36,378 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3dbf1698-6265-4fca-9b73-4246b93af8ed/bin/utaipan/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 15:58:36,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:58:36,470 INFO L264 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 15:58:36,472 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:58:36,480 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 15:58:36,480 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:58:36,485 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 15:58:36,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2019-12-07 15:58:36,485 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 9 [2019-12-07 15:58:36,485 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285238206] [2019-12-07 15:58:36,486 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 15:58:36,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:58:36,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 15:58:36,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-12-07 15:58:36,486 INFO L87 Difference]: Start difference. First operand 180 states and 242 transitions. Second operand 10 states. [2019-12-07 15:58:37,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:58:37,079 INFO L93 Difference]: Finished difference Result 1066 states and 1487 transitions. [2019-12-07 15:58:37,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-12-07 15:58:37,079 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 48 [2019-12-07 15:58:37,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:58:37,083 INFO L225 Difference]: With dead ends: 1066 [2019-12-07 15:58:37,083 INFO L226 Difference]: Without dead ends: 933 [2019-12-07 15:58:37,084 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 273 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2019-12-07 15:58:37,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 933 states. [2019-12-07 15:58:37,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 933 to 300. [2019-12-07 15:58:37,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2019-12-07 15:58:37,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 410 transitions. [2019-12-07 15:58:37,116 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 410 transitions. Word has length 48 [2019-12-07 15:58:37,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:58:37,117 INFO L462 AbstractCegarLoop]: Abstraction has 300 states and 410 transitions. [2019-12-07 15:58:37,117 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 15:58:37,117 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 410 transitions. [2019-12-07 15:58:37,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-12-07 15:58:37,117 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:58:37,118 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-12-07 15:58:37,718 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 mathsat -unsat_core_generation=3 [2019-12-07 15:58:37,719 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:58:37,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:58:37,719 INFO L82 PathProgramCache]: Analyzing trace with hash -568509983, now seen corresponding path program 2 times [2019-12-07 15:58:37,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:58:37,720 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [192277406] [2019-12-07 15:58:37,720 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3dbf1698-6265-4fca-9b73-4246b93af8ed/bin/utaipan/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2019-12-07 15:58:38,218 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 15:58:38,218 INFO L250 tOrderPrioritization]: Conjunction of SSA is sat [2019-12-07 15:58:38,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:58:39,131 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 15:58:39,131 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 15:58:39,331 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 mathsat -unsat_core_generation=3 [2019-12-07 15:58:39,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 03:58:39 BoogieIcfgContainer [2019-12-07 15:58:39,468 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 15:58:39,468 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:58:39,468 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:58:39,468 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:58:39,468 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:58:31" (3/4) ... [2019-12-07 15:58:39,470 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 15:58:39,545 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3dbf1698-6265-4fca-9b73-4246b93af8ed/bin/utaipan/witness.graphml [2019-12-07 15:58:39,545 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:58:39,547 INFO L168 Benchmark]: Toolchain (without parser) took 8684.57 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 308.3 MB). Free memory was 953.7 MB in the beginning and 1.2 GB in the end (delta: -234.8 MB). Peak memory consumption was 73.5 MB. Max. memory is 11.5 GB. [2019-12-07 15:58:39,547 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:58:39,547 INFO L168 Benchmark]: CACSL2BoogieTranslator took 375.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -144.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-12-07 15:58:39,547 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.09 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-07 15:58:39,548 INFO L168 Benchmark]: Boogie Preprocessor took 30.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:58:39,548 INFO L168 Benchmark]: RCFGBuilder took 520.43 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: 68.1 MB). Peak memory consumption was 68.1 MB. Max. memory is 11.5 GB. [2019-12-07 15:58:39,548 INFO L168 Benchmark]: TraceAbstraction took 7634.04 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 183.5 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -197.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:58:39,548 INFO L168 Benchmark]: Witness Printer took 77.80 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. [2019-12-07 15:58:39,549 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 375.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -144.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.09 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.45 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 520.43 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: 68.1 MB). Peak memory consumption was 68.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7634.04 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 183.5 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -197.6 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 77.80 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 310]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L120] int pumpRunning = 0; [L121] int systemActive = 1; [L315] int cleanupTimeShifts = 4; [L415] int waterLevel = 1; [L416] int methaneLevelCritical = 0; [L713] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L391] int retValue_acc ; [L392] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L535] int retValue_acc ; [L538] retValue_acc = 1 [L539] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L398] tmp = valid_product() [L400] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L55] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L57] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L63] tmp = __VERIFIER_nondet_int() [L65] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L433] COND TRUE waterLevel < 2 [L434] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L128] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L135] COND TRUE \read(systemActive) [L157] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L160] COND TRUE ! pumpRunning [L272] int retValue_acc ; [L273] int tmp ; [L274] int tmp___0 ; [L495] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L498] COND FALSE !(waterLevel < 2) [L502] retValue_acc = 0 [L503] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L278] tmp = isHighWaterSensorDry() [L280] COND FALSE !(\read(tmp)) [L283] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L285] retValue_acc = tmp___0 [L286] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L162] tmp = isHighWaterLevel() [L164] COND TRUE \read(tmp) [L191] int tmp ; [L216] int retValue_acc ; [L454] int retValue_acc ; [L457] retValue_acc = methaneLevelCritical [L458] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L220] retValue_acc = isMethaneLevelCritical() [L222] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L195] tmp = isMethaneAlarm() [L197] COND FALSE !(\read(tmp)) [L185] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L911] int tmp ; [L912] int tmp___0 ; [L486] int retValue_acc ; [L489] retValue_acc = waterLevel [L490] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L916] tmp = getWaterLevel() [L918] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L55] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L57] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L63] tmp = __VERIFIER_nondet_int() [L65] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L128] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L421] COND TRUE waterLevel > 0 [L422] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L135] COND TRUE \read(systemActive) [L157] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L160] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L911] int tmp ; [L912] int tmp___0 ; [L486] int retValue_acc ; [L489] retValue_acc = waterLevel [L490] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L916] tmp = getWaterLevel() [L918] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L55] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L57] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L63] tmp = __VERIFIER_nondet_int() [L65] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L128] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L421] COND TRUE waterLevel > 0 [L422] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L135] COND TRUE \read(systemActive) [L157] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L160] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L911] int tmp ; [L912] int tmp___0 ; [L486] int retValue_acc ; [L489] retValue_acc = waterLevel [L490] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L916] tmp = getWaterLevel() [L918] COND TRUE tmp == 0 [L227] int retValue_acc ; [L230] retValue_acc = pumpRunning [L231] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L920] tmp___0 = isPumpRunning() [L922] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L310] __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, 89 locations, 3 error locations. Result: UNSAFE, OverallTime: 7.4s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 782 SDtfs, 1941 SDslu, 1822 SDs, 0 SdLazy, 317 SolverSat, 82 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 857 GetRequests, 790 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=300occurred in iteration=9, 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, 9 MinimizatonAttempts, 1571 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 484 NumberOfCodeBlocks, 484 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 818 ConstructedInterpolants, 0 QuantifiedInterpolants, 81588 SizeOfPredicates, 27 NumberOfNonLiveVariables, 2403 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 24 InterpolantComputations, 16 PerfectInterpolantSequences, 132/196 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...