./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_4c9cb5bb-23c1-4d74-90fb-7fd30debf10d/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_4c9cb5bb-23c1-4d74-90fb-7fd30debf10d/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4c9cb5bb-23c1-4d74-90fb-7fd30debf10d/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4c9cb5bb-23c1-4d74-90fb-7fd30debf10d/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4c9cb5bb-23c1-4d74-90fb-7fd30debf10d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4c9cb5bb-23c1-4d74-90fb-7fd30debf10d/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 41f42675c60ac44d105cf71847968c4edf76aefd ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_4c9cb5bb-23c1-4d74-90fb-7fd30debf10d/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_4c9cb5bb-23c1-4d74-90fb-7fd30debf10d/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4c9cb5bb-23c1-4d74-90fb-7fd30debf10d/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4c9cb5bb-23c1-4d74-90fb-7fd30debf10d/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4c9cb5bb-23c1-4d74-90fb-7fd30debf10d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4c9cb5bb-23c1-4d74-90fb-7fd30debf10d/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 41f42675c60ac44d105cf71847968c4edf76aefd ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.2.0-a4ecdab [2020-11-22 12:48:45,977 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:48:45,985 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:48:46,040 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:48:46,041 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:48:46,045 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:48:46,048 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:48:46,055 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:48:46,058 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:48:46,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:48:46,061 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:48:46,062 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:48:46,062 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:48:46,063 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:48:46,065 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:48:46,066 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:48:46,071 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:48:46,075 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:48:46,078 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:48:46,085 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:48:46,088 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:48:46,090 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:48:46,092 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:48:46,093 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:48:46,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:48:46,102 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:48:46,103 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:48:46,105 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:48:46,105 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:48:46,106 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:48:46,107 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:48:46,108 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:48:46,110 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:48:46,111 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:48:46,112 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:48:46,112 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:48:46,113 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:48:46,113 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:48:46,114 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:48:46,114 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:48:46,115 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:48:46,119 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4c9cb5bb-23c1-4d74-90fb-7fd30debf10d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 12:48:46,157 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:48:46,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:48:46,159 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:48:46,159 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:48:46,159 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:48:46,159 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:48:46,160 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 12:48:46,160 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:48:46,160 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:48:46,160 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 12:48:46,161 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 12:48:46,162 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:48:46,162 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 12:48:46,162 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 12:48:46,162 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 12:48:46,163 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:48:46,163 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:48:46,163 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 12:48:46,164 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:48:46,164 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:48:46,164 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:48:46,164 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:48:46,165 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:48:46,165 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:48:46,165 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:48:46,165 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:48:46,165 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:48:46,166 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:48:46,166 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:48:46,167 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:48:46,168 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:48:46,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:48:46,168 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:48:46,169 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:48:46,169 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:48:46,169 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 12:48:46,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 12:48:46,169 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:48:46,170 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:48:46,170 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:48:46,170 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_4c9cb5bb-23c1-4d74-90fb-7fd30debf10d/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_4c9cb5bb-23c1-4d74-90fb-7fd30debf10d/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 41f42675c60ac44d105cf71847968c4edf76aefd [2020-11-22 12:48:46,463 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:48:46,496 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:48:46,500 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:48:46,502 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:48:46,502 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:48:46,503 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4c9cb5bb-23c1-4d74-90fb-7fd30debf10d/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c [2020-11-22 12:48:46,578 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4c9cb5bb-23c1-4d74-90fb-7fd30debf10d/bin/utaipan/data/269523b4e/2d721f5759404344aac73e8a59c41768/FLAGb26aeef46 [2020-11-22 12:48:47,103 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:48:47,103 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4c9cb5bb-23c1-4d74-90fb-7fd30debf10d/sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c [2020-11-22 12:48:47,125 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4c9cb5bb-23c1-4d74-90fb-7fd30debf10d/bin/utaipan/data/269523b4e/2d721f5759404344aac73e8a59c41768/FLAGb26aeef46 [2020-11-22 12:48:47,448 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4c9cb5bb-23c1-4d74-90fb-7fd30debf10d/bin/utaipan/data/269523b4e/2d721f5759404344aac73e8a59c41768 [2020-11-22 12:48:47,450 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:48:47,452 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:48:47,454 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:48:47,454 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:48:47,457 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:48:47,458 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:48:47" (1/1) ... [2020-11-22 12:48:47,460 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a38a055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:48:47, skipping insertion in model container [2020-11-22 12:48:47,460 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:48:47" (1/1) ... [2020-11-22 12:48:47,467 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:48:47,513 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:48:47,826 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:48:47,849 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) [2020-11-22 12:48:47,852 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1176bfb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:48:47, skipping insertion in model container [2020-11-22 12:48:47,853 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:48:47,854 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-22 12:48:47,856 INFO L168 Benchmark]: Toolchain (without parser) took 402.70 ms. Allocated memory is still 102.8 MB. Free memory was 65.2 MB in the beginning and 75.4 MB in the end (delta: -10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:48:47,857 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 102.8 MB. Free memory is still 82.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:48:47,860 INFO L168 Benchmark]: CACSL2BoogieTranslator took 399.82 ms. Allocated memory is still 102.8 MB. Free memory was 65.0 MB in the beginning and 75.4 MB in the end (delta: -10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:48:47,862 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 102.8 MB. Free memory is still 82.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 399.82 ms. Allocated memory is still 102.8 MB. Free memory was 65.0 MB in the beginning and 75.4 MB in the end (delta: -10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 626]: 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 0.2.0-a4ecdab [2020-11-22 12:48:49,923 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:48:49,927 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:48:49,965 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:48:49,966 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:48:49,967 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:48:49,969 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:48:49,971 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:48:49,974 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:48:49,975 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:48:49,976 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:48:49,977 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:48:49,978 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:48:49,979 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:48:49,980 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:48:49,981 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:48:49,982 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:48:49,983 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:48:49,986 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:48:49,988 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:48:49,998 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:48:50,003 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:48:50,004 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:48:50,006 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:48:50,010 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:48:50,013 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:48:50,013 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:48:50,014 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:48:50,016 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:48:50,017 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:48:50,018 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:48:50,021 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:48:50,023 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:48:50,024 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:48:50,025 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:48:50,026 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:48:50,027 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:48:50,027 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:48:50,027 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:48:50,029 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:48:50,030 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:48:50,031 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4c9cb5bb-23c1-4d74-90fb-7fd30debf10d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 12:48:50,076 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:48:50,077 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:48:50,078 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:48:50,078 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:48:50,078 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:48:50,078 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:48:50,079 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:48:50,079 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:48:50,079 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:48:50,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:48:50,081 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:48:50,082 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:48:50,082 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:48:50,082 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:48:50,082 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:48:50,083 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:48:50,083 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:48:50,083 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 12:48:50,083 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 12:48:50,083 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:48:50,084 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:48:50,084 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:48:50,084 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:48:50,084 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:48:50,085 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 12:48:50,085 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:48:50,085 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:48:50,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:48:50,085 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:48:50,086 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:48:50,086 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:48:50,086 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 12:48:50,086 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 12:48:50,087 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:48:50,087 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:48:50,097 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:48:50,097 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_4c9cb5bb-23c1-4d74-90fb-7fd30debf10d/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_4c9cb5bb-23c1-4d74-90fb-7fd30debf10d/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 41f42675c60ac44d105cf71847968c4edf76aefd [2020-11-22 12:48:50,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:48:50,523 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:48:50,526 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:48:50,527 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:48:50,529 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:48:50,530 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4c9cb5bb-23c1-4d74-90fb-7fd30debf10d/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c [2020-11-22 12:48:50,592 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4c9cb5bb-23c1-4d74-90fb-7fd30debf10d/bin/utaipan/data/dd58731be/1d591cfa5c7949f0b8c5d9f3d70ac64e/FLAG7e565c6c4 [2020-11-22 12:48:51,113 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:48:51,114 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4c9cb5bb-23c1-4d74-90fb-7fd30debf10d/sv-benchmarks/c/product-lines/minepump_spec2_product44.cil.c [2020-11-22 12:48:51,130 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4c9cb5bb-23c1-4d74-90fb-7fd30debf10d/bin/utaipan/data/dd58731be/1d591cfa5c7949f0b8c5d9f3d70ac64e/FLAG7e565c6c4 [2020-11-22 12:48:51,424 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4c9cb5bb-23c1-4d74-90fb-7fd30debf10d/bin/utaipan/data/dd58731be/1d591cfa5c7949f0b8c5d9f3d70ac64e [2020-11-22 12:48:51,426 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:48:51,427 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:48:51,429 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:48:51,429 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:48:51,432 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:48:51,433 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:48:51" (1/1) ... [2020-11-22 12:48:51,435 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1991004e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:48:51, skipping insertion in model container [2020-11-22 12:48:51,435 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:48:51" (1/1) ... [2020-11-22 12:48:51,442 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:48:51,488 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:48:51,749 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:48:51,762 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-22 12:48:51,770 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:48:51,901 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:48:51,909 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 12:48:52,010 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:48:52,057 INFO L208 MainTranslator]: Completed translation [2020-11-22 12:48:52,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:48:52 WrapperNode [2020-11-22 12:48:52,057 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:48:52,059 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 12:48:52,059 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 12:48:52,059 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 12:48:52,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:48:52" (1/1) ... [2020-11-22 12:48:52,100 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:48:52" (1/1) ... [2020-11-22 12:48:52,135 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 12:48:52,136 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 12:48:52,137 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 12:48:52,137 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 12:48:52,145 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:48:52" (1/1) ... [2020-11-22 12:48:52,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:48:52" (1/1) ... [2020-11-22 12:48:52,151 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:48:52" (1/1) ... [2020-11-22 12:48:52,151 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:48:52" (1/1) ... [2020-11-22 12:48:52,163 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:48:52" (1/1) ... [2020-11-22 12:48:52,182 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:48:52" (1/1) ... [2020-11-22 12:48:52,185 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:48:52" (1/1) ... [2020-11-22 12:48:52,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 12:48:52,190 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 12:48:52,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 12:48:52,207 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 12:48:52,208 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:48:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4c9cb5bb-23c1-4d74-90fb-7fd30debf10d/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 [2020-11-22 12:48:52,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 12:48:52,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 12:48:52,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 12:48:52,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 12:48:54,654 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 12:48:54,654 INFO L298 CfgBuilder]: Removed 128 assume(true) statements. [2020-11-22 12:48:54,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:48:54 BoogieIcfgContainer [2020-11-22 12:48:54,658 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 12:48:54,661 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 12:48:54,662 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 12:48:54,665 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 12:48:54,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:48:51" (1/3) ... [2020-11-22 12:48:54,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fa5543 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:48:54, skipping insertion in model container [2020-11-22 12:48:54,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:48:52" (2/3) ... [2020-11-22 12:48:54,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fa5543 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:48:54, skipping insertion in model container [2020-11-22 12:48:54,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:48:54" (3/3) ... [2020-11-22 12:48:54,673 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product44.cil.c [2020-11-22 12:48:54,686 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 12:48:54,692 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-22 12:48:54,711 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-22 12:48:54,756 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 12:48:54,758 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 12:48:54,758 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 12:48:54,758 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 12:48:54,759 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 12:48:54,760 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 12:48:54,760 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 12:48:54,760 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 12:48:54,782 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states. [2020-11-22 12:48:54,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-22 12:48:54,792 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:48:54,793 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:48:54,793 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:48:54,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:48:54,801 INFO L82 PathProgramCache]: Analyzing trace with hash 578880292, now seen corresponding path program 1 times [2020-11-22 12:48:54,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:48:54,820 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [984242946] [2020-11-22 12:48:54,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4c9cb5bb-23c1-4d74-90fb-7fd30debf10d/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 [2020-11-22 12:48:55,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:48:55,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 12:48:55,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:48:55,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:48:55,181 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:48:55,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:48:55,193 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [984242946] [2020-11-22 12:48:55,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:48:55,194 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 12:48:55,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059368481] [2020-11-22 12:48:55,201 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 12:48:55,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:48:55,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 12:48:55,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 12:48:55,223 INFO L87 Difference]: Start difference. First operand 96 states. Second operand 2 states. [2020-11-22 12:48:55,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:48:55,280 INFO L93 Difference]: Finished difference Result 182 states and 273 transitions. [2020-11-22 12:48:55,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 12:48:55,282 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-22 12:48:55,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:48:55,294 INFO L225 Difference]: With dead ends: 182 [2020-11-22 12:48:55,297 INFO L226 Difference]: Without dead ends: 89 [2020-11-22 12:48:55,301 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 12:48:55,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-11-22 12:48:55,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2020-11-22 12:48:55,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-11-22 12:48:55,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 127 transitions. [2020-11-22 12:48:55,347 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 127 transitions. Word has length 18 [2020-11-22 12:48:55,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:48:55,347 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 127 transitions. [2020-11-22 12:48:55,348 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 12:48:55,348 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 127 transitions. [2020-11-22 12:48:55,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-22 12:48:55,349 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:48:55,349 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:48:55,554 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 12:48:55,555 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:48:55,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:48:55,556 INFO L82 PathProgramCache]: Analyzing trace with hash 360044323, now seen corresponding path program 1 times [2020-11-22 12:48:55,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:48:55,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [940213118] [2020-11-22 12:48:55,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4c9cb5bb-23c1-4d74-90fb-7fd30debf10d/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 [2020-11-22 12:48:55,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:48:55,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:48:55,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:48:55,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:48:55,775 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:48:55,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:48:55,786 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [940213118] [2020-11-22 12:48:55,787 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:48:55,787 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 12:48:55,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128084812] [2020-11-22 12:48:55,788 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:48:55,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:48:55,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:48:55,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:48:55,789 INFO L87 Difference]: Start difference. First operand 89 states and 127 transitions. Second operand 4 states. [2020-11-22 12:48:55,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:48:55,828 INFO L93 Difference]: Finished difference Result 89 states and 127 transitions. [2020-11-22 12:48:55,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:48:55,829 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-11-22 12:48:55,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:48:55,830 INFO L225 Difference]: With dead ends: 89 [2020-11-22 12:48:55,831 INFO L226 Difference]: Without dead ends: 41 [2020-11-22 12:48:55,832 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:48:55,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-11-22 12:48:55,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-11-22 12:48:55,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-11-22 12:48:55,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 58 transitions. [2020-11-22 12:48:55,849 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 58 transitions. Word has length 19 [2020-11-22 12:48:55,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:48:55,851 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 58 transitions. [2020-11-22 12:48:55,851 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:48:55,852 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 58 transitions. [2020-11-22 12:48:55,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-22 12:48:55,853 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:48:55,853 INFO L422 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] [2020-11-22 12:48:56,077 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 12:48:56,077 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:48:56,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:48:56,078 INFO L82 PathProgramCache]: Analyzing trace with hash -2025304256, now seen corresponding path program 1 times [2020-11-22 12:48:56,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:48:56,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [374643393] [2020-11-22 12:48:56,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4c9cb5bb-23c1-4d74-90fb-7fd30debf10d/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 [2020-11-22 12:48:56,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:48:56,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:48:56,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:48:56,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:48:56,283 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:48:56,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:48:56,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [374643393] [2020-11-22 12:48:56,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:48:56,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 12:48:56,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92929058] [2020-11-22 12:48:56,294 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:48:56,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:48:56,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:48:56,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:48:56,295 INFO L87 Difference]: Start difference. First operand 41 states and 58 transitions. Second operand 4 states. [2020-11-22 12:48:56,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:48:56,364 INFO L93 Difference]: Finished difference Result 133 states and 196 transitions. [2020-11-22 12:48:56,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 12:48:56,365 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-11-22 12:48:56,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:48:56,367 INFO L225 Difference]: With dead ends: 133 [2020-11-22 12:48:56,367 INFO L226 Difference]: Without dead ends: 99 [2020-11-22 12:48:56,368 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:48:56,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-11-22 12:48:56,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 61. [2020-11-22 12:48:56,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-11-22 12:48:56,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 89 transitions. [2020-11-22 12:48:56,385 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 89 transitions. Word has length 24 [2020-11-22 12:48:56,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:48:56,385 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 89 transitions. [2020-11-22 12:48:56,386 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:48:56,386 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 89 transitions. [2020-11-22 12:48:56,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-22 12:48:56,387 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:48:56,387 INFO L422 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] [2020-11-22 12:48:56,588 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 12:48:56,588 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:48:56,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:48:56,589 INFO L82 PathProgramCache]: Analyzing trace with hash 193545241, now seen corresponding path program 1 times [2020-11-22 12:48:56,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:48:56,589 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [385242501] [2020-11-22 12:48:56,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4c9cb5bb-23c1-4d74-90fb-7fd30debf10d/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 [2020-11-22 12:48:56,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:48:56,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:48:56,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:48:56,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:48:56,828 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:48:56,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:48:56,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [385242501] [2020-11-22 12:48:56,832 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:48:56,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-22 12:48:56,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384709217] [2020-11-22 12:48:56,833 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 12:48:56,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:48:56,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 12:48:56,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:48:56,837 INFO L87 Difference]: Start difference. First operand 61 states and 89 transitions. Second operand 3 states. [2020-11-22 12:48:56,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:48:56,918 INFO L93 Difference]: Finished difference Result 137 states and 203 transitions. [2020-11-22 12:48:56,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:48:56,918 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-11-22 12:48:56,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:48:56,920 INFO L225 Difference]: With dead ends: 137 [2020-11-22 12:48:56,920 INFO L226 Difference]: Without dead ends: 83 [2020-11-22 12:48:56,921 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:48:56,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-11-22 12:48:56,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 81. [2020-11-22 12:48:56,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-11-22 12:48:56,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 116 transitions. [2020-11-22 12:48:56,946 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 116 transitions. Word has length 25 [2020-11-22 12:48:56,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:48:56,946 INFO L481 AbstractCegarLoop]: Abstraction has 81 states and 116 transitions. [2020-11-22 12:48:56,947 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 12:48:56,947 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 116 transitions. [2020-11-22 12:48:56,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-22 12:48:56,949 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:48:56,950 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:48:57,169 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-22 12:48:57,170 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:48:57,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:48:57,170 INFO L82 PathProgramCache]: Analyzing trace with hash 433385865, now seen corresponding path program 1 times [2020-11-22 12:48:57,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:48:57,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [899681931] [2020-11-22 12:48:57,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4c9cb5bb-23c1-4d74-90fb-7fd30debf10d/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 [2020-11-22 12:48:57,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:48:57,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 12:48:57,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:48:57,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:48:57,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:48:57,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:48:57,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [899681931] [2020-11-22 12:48:57,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:48:57,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-11-22 12:48:57,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639970718] [2020-11-22 12:48:57,430 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 12:48:57,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:48:57,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 12:48:57,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 12:48:57,431 INFO L87 Difference]: Start difference. First operand 81 states and 116 transitions. Second operand 5 states. [2020-11-22 12:48:57,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:48:57,595 INFO L93 Difference]: Finished difference Result 378 states and 552 transitions. [2020-11-22 12:48:57,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-22 12:48:57,597 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-11-22 12:48:57,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:48:57,600 INFO L225 Difference]: With dead ends: 378 [2020-11-22 12:48:57,600 INFO L226 Difference]: Without dead ends: 304 [2020-11-22 12:48:57,602 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-22 12:48:57,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-11-22 12:48:57,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 144. [2020-11-22 12:48:57,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-11-22 12:48:57,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 203 transitions. [2020-11-22 12:48:57,670 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 203 transitions. Word has length 27 [2020-11-22 12:48:57,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:48:57,671 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 203 transitions. [2020-11-22 12:48:57,672 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 12:48:57,672 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 203 transitions. [2020-11-22 12:48:57,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-22 12:48:57,678 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:48:57,678 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:48:57,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-22 12:48:57,895 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:48:57,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:48:57,896 INFO L82 PathProgramCache]: Analyzing trace with hash -1000759295, now seen corresponding path program 1 times [2020-11-22 12:48:57,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:48:57,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [53544908] [2020-11-22 12:48:57,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4c9cb5bb-23c1-4d74-90fb-7fd30debf10d/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 [2020-11-22 12:48:58,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:48:58,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 12:48:58,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:48:58,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:48:58,128 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:48:58,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:48:58,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [53544908] [2020-11-22 12:48:58,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:48:58,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-22 12:48:58,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021289319] [2020-11-22 12:48:58,136 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 12:48:58,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:48:58,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 12:48:58,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 12:48:58,138 INFO L87 Difference]: Start difference. First operand 144 states and 203 transitions. Second operand 5 states. [2020-11-22 12:48:58,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:48:58,361 INFO L93 Difference]: Finished difference Result 529 states and 751 transitions. [2020-11-22 12:48:58,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-22 12:48:58,362 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-11-22 12:48:58,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:48:58,365 INFO L225 Difference]: With dead ends: 529 [2020-11-22 12:48:58,365 INFO L226 Difference]: Without dead ends: 392 [2020-11-22 12:48:58,367 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-22 12:48:58,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2020-11-22 12:48:58,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 142. [2020-11-22 12:48:58,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-11-22 12:48:58,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 197 transitions. [2020-11-22 12:48:58,388 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 197 transitions. Word has length 28 [2020-11-22 12:48:58,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:48:58,389 INFO L481 AbstractCegarLoop]: Abstraction has 142 states and 197 transitions. [2020-11-22 12:48:58,389 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 12:48:58,389 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 197 transitions. [2020-11-22 12:48:58,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-11-22 12:48:58,390 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:48:58,391 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:48:58,606 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-22 12:48:58,607 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:48:58,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:48:58,607 INFO L82 PathProgramCache]: Analyzing trace with hash 341285158, now seen corresponding path program 1 times [2020-11-22 12:48:58,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:48:58,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [370475823] [2020-11-22 12:48:58,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4c9cb5bb-23c1-4d74-90fb-7fd30debf10d/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-11-22 12:48:58,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:48:58,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 12:48:58,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:48:58,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:48:58,842 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:48:58,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:48:58,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [370475823] [2020-11-22 12:48:58,852 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:48:58,853 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-22 12:48:58,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381159919] [2020-11-22 12:48:58,853 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 12:48:58,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:48:58,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 12:48:58,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 12:48:58,862 INFO L87 Difference]: Start difference. First operand 142 states and 197 transitions. Second operand 5 states. [2020-11-22 12:48:58,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:48:58,964 INFO L93 Difference]: Finished difference Result 429 states and 593 transitions. [2020-11-22 12:48:58,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 12:48:58,965 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2020-11-22 12:48:58,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:48:58,969 INFO L225 Difference]: With dead ends: 429 [2020-11-22 12:48:58,969 INFO L226 Difference]: Without dead ends: 294 [2020-11-22 12:48:58,971 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 12:48:58,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-11-22 12:48:59,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 148. [2020-11-22 12:48:59,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-11-22 12:48:59,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 203 transitions. [2020-11-22 12:48:59,004 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 203 transitions. Word has length 35 [2020-11-22 12:48:59,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:48:59,004 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 203 transitions. [2020-11-22 12:48:59,005 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 12:48:59,005 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 203 transitions. [2020-11-22 12:48:59,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-11-22 12:48:59,006 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:48:59,006 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:48:59,230 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-11-22 12:48:59,232 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:48:59,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:48:59,232 INFO L82 PathProgramCache]: Analyzing trace with hash -669832092, now seen corresponding path program 1 times [2020-11-22 12:48:59,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:48:59,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1741594040] [2020-11-22 12:48:59,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4c9cb5bb-23c1-4d74-90fb-7fd30debf10d/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 [2020-11-22 12:48:59,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:48:59,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-22 12:48:59,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:48:59,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:48:59,475 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:48:59,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:48:59,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1741594040] [2020-11-22 12:48:59,502 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:48:59,502 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-22 12:48:59,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82361446] [2020-11-22 12:48:59,503 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-22 12:48:59,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:48:59,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-22 12:48:59,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-22 12:48:59,504 INFO L87 Difference]: Start difference. First operand 148 states and 203 transitions. Second operand 6 states. [2020-11-22 12:48:59,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:48:59,601 INFO L93 Difference]: Finished difference Result 447 states and 611 transitions. [2020-11-22 12:48:59,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 12:48:59,602 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-11-22 12:48:59,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:48:59,605 INFO L225 Difference]: With dead ends: 447 [2020-11-22 12:48:59,605 INFO L226 Difference]: Without dead ends: 306 [2020-11-22 12:48:59,606 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 12:48:59,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-11-22 12:48:59,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 152. [2020-11-22 12:48:59,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-11-22 12:48:59,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 207 transitions. [2020-11-22 12:48:59,634 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 207 transitions. Word has length 35 [2020-11-22 12:48:59,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:48:59,634 INFO L481 AbstractCegarLoop]: Abstraction has 152 states and 207 transitions. [2020-11-22 12:48:59,635 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-22 12:48:59,635 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 207 transitions. [2020-11-22 12:48:59,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-11-22 12:48:59,638 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:48:59,638 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:48:59,855 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-11-22 12:48:59,856 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:48:59,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:48:59,856 INFO L82 PathProgramCache]: Analyzing trace with hash -1690900446, now seen corresponding path program 1 times [2020-11-22 12:48:59,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:48:59,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1562586722] [2020-11-22 12:48:59,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4c9cb5bb-23c1-4d74-90fb-7fd30debf10d/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 [2020-11-22 12:49:00,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:49:00,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:49:00,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:49:00,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:49:00,097 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:49:00,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:49:00,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1562586722] [2020-11-22 12:49:00,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:49:00,128 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-22 12:49:00,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888769160] [2020-11-22 12:49:00,129 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:49:00,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:49:00,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:49:00,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:49:00,130 INFO L87 Difference]: Start difference. First operand 152 states and 207 transitions. Second operand 4 states. [2020-11-22 12:49:00,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:49:00,227 INFO L93 Difference]: Finished difference Result 508 states and 695 transitions. [2020-11-22 12:49:00,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 12:49:00,228 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2020-11-22 12:49:00,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:49:00,231 INFO L225 Difference]: With dead ends: 508 [2020-11-22 12:49:00,231 INFO L226 Difference]: Without dead ends: 363 [2020-11-22 12:49:00,231 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:49:00,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2020-11-22 12:49:00,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 275. [2020-11-22 12:49:00,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2020-11-22 12:49:00,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 372 transitions. [2020-11-22 12:49:00,278 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 372 transitions. Word has length 35 [2020-11-22 12:49:00,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:49:00,278 INFO L481 AbstractCegarLoop]: Abstraction has 275 states and 372 transitions. [2020-11-22 12:49:00,279 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:49:00,279 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 372 transitions. [2020-11-22 12:49:00,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-11-22 12:49:00,280 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:49:00,280 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:49:00,494 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-11-22 12:49:00,497 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:49:00,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:49:00,497 INFO L82 PathProgramCache]: Analyzing trace with hash -2015558942, now seen corresponding path program 1 times [2020-11-22 12:49:00,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:49:00,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [530024041] [2020-11-22 12:49:00,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4c9cb5bb-23c1-4d74-90fb-7fd30debf10d/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 [2020-11-22 12:49:00,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:49:00,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-22 12:49:00,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:49:00,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:49:00,749 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:49:00,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:49:00,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [530024041] [2020-11-22 12:49:00,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:49:00,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-11-22 12:49:00,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679683055] [2020-11-22 12:49:00,806 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-22 12:49:00,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:49:00,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-22 12:49:00,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-11-22 12:49:00,808 INFO L87 Difference]: Start difference. First operand 275 states and 372 transitions. Second operand 10 states. [2020-11-22 12:49:02,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:49:02,740 INFO L93 Difference]: Finished difference Result 1205 states and 1609 transitions. [2020-11-22 12:49:02,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-22 12:49:02,741 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 36 [2020-11-22 12:49:02,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:49:02,750 INFO L225 Difference]: With dead ends: 1205 [2020-11-22 12:49:02,751 INFO L226 Difference]: Without dead ends: 937 [2020-11-22 12:49:02,752 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-11-22 12:49:02,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2020-11-22 12:49:02,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 275. [2020-11-22 12:49:02,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2020-11-22 12:49:02,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 365 transitions. [2020-11-22 12:49:02,823 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 365 transitions. Word has length 36 [2020-11-22 12:49:02,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:49:02,824 INFO L481 AbstractCegarLoop]: Abstraction has 275 states and 365 transitions. [2020-11-22 12:49:02,824 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-22 12:49:02,824 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 365 transitions. [2020-11-22 12:49:02,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-22 12:49:02,825 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:49:02,825 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:49:03,037 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-11-22 12:49:03,037 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:49:03,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:49:03,039 INFO L82 PathProgramCache]: Analyzing trace with hash 362736786, now seen corresponding path program 1 times [2020-11-22 12:49:03,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:49:03,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2035274245] [2020-11-22 12:49:03,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4c9cb5bb-23c1-4d74-90fb-7fd30debf10d/bin/utaipan/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2020-11-22 12:49:03,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:49:03,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:49:03,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:49:03,285 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:49:03,285 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:49:03,290 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:49:03,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2035274245] [2020-11-22 12:49:03,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:49:03,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-22 12:49:03,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59271111] [2020-11-22 12:49:03,292 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 12:49:03,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:49:03,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 12:49:03,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:49:03,294 INFO L87 Difference]: Start difference. First operand 275 states and 365 transitions. Second operand 3 states. [2020-11-22 12:49:03,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:49:03,400 INFO L93 Difference]: Finished difference Result 431 states and 570 transitions. [2020-11-22 12:49:03,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:49:03,401 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-11-22 12:49:03,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:49:03,404 INFO L225 Difference]: With dead ends: 431 [2020-11-22 12:49:03,404 INFO L226 Difference]: Without dead ends: 429 [2020-11-22 12:49:03,404 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:49:03,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2020-11-22 12:49:03,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 315. [2020-11-22 12:49:03,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2020-11-22 12:49:03,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 424 transitions. [2020-11-22 12:49:03,452 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 424 transitions. Word has length 51 [2020-11-22 12:49:03,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:49:03,452 INFO L481 AbstractCegarLoop]: Abstraction has 315 states and 424 transitions. [2020-11-22 12:49:03,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 12:49:03,452 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 424 transitions. [2020-11-22 12:49:03,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-11-22 12:49:03,454 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:49:03,454 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:49:03,674 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2020-11-22 12:49:03,674 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:49:03,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:49:03,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1255096313, now seen corresponding path program 1 times [2020-11-22 12:49:03,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:49:03,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [822859874] [2020-11-22 12:49:03,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4c9cb5bb-23c1-4d74-90fb-7fd30debf10d/bin/utaipan/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2020-11-22 12:49:05,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:49:05,284 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:49:06,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:49:06,452 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:49:06,716 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-22 12:49:06,718 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 12:49:06,926 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2020-11-22 12:49:07,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:49:07 BoogieIcfgContainer [2020-11-22 12:49:07,138 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 12:49:07,138 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 12:49:07,139 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 12:49:07,139 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 12:49:07,140 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:48:54" (3/4) ... [2020-11-22 12:49:07,143 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 12:49:07,339 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4c9cb5bb-23c1-4d74-90fb-7fd30debf10d/bin/utaipan/witness.graphml [2020-11-22 12:49:07,339 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 12:49:07,342 INFO L168 Benchmark]: Toolchain (without parser) took 15913.39 ms. Allocated memory was 73.4 MB in the beginning and 117.4 MB in the end (delta: 44.0 MB). Free memory was 56.9 MB in the beginning and 75.6 MB in the end (delta: -18.7 MB). Peak memory consumption was 71.9 MB. Max. memory is 16.1 GB. [2020-11-22 12:49:07,343 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 73.4 MB. Free memory was 56.2 MB in the beginning and 56.2 MB in the end (delta: 54.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:49:07,343 INFO L168 Benchmark]: CACSL2BoogieTranslator took 629.32 ms. Allocated memory is still 73.4 MB. Free memory was 56.8 MB in the beginning and 47.0 MB in the end (delta: 9.8 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-22 12:49:07,343 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.98 ms. Allocated memory is still 73.4 MB. Free memory was 47.0 MB in the beginning and 43.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:49:07,344 INFO L168 Benchmark]: Boogie Preprocessor took 52.79 ms. Allocated memory is still 73.4 MB. Free memory was 43.7 MB in the beginning and 41.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-22 12:49:07,344 INFO L168 Benchmark]: RCFGBuilder took 2468.22 ms. Allocated memory was 73.4 MB in the beginning and 96.5 MB in the end (delta: 23.1 MB). Free memory was 41.3 MB in the beginning and 54.3 MB in the end (delta: -12.9 MB). Peak memory consumption was 17.7 MB. Max. memory is 16.1 GB. [2020-11-22 12:49:07,345 INFO L168 Benchmark]: TraceAbstraction took 12477.14 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 53.7 MB in the beginning and 41.0 MB in the end (delta: 12.7 MB). Peak memory consumption was 34.4 MB. Max. memory is 16.1 GB. [2020-11-22 12:49:07,345 INFO L168 Benchmark]: Witness Printer took 201.25 ms. Allocated memory is still 117.4 MB. Free memory was 41.0 MB in the beginning and 75.6 MB in the end (delta: -34.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-22 12:49:07,347 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 73.4 MB. Free memory was 56.2 MB in the beginning and 56.2 MB in the end (delta: 54.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 629.32 ms. Allocated memory is still 73.4 MB. Free memory was 56.8 MB in the beginning and 47.0 MB in the end (delta: 9.8 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 76.98 ms. Allocated memory is still 73.4 MB. Free memory was 47.0 MB in the beginning and 43.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.79 ms. Allocated memory is still 73.4 MB. Free memory was 43.7 MB in the beginning and 41.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2468.22 ms. Allocated memory was 73.4 MB in the beginning and 96.5 MB in the end (delta: 23.1 MB). Free memory was 41.3 MB in the beginning and 54.3 MB in the end (delta: -12.9 MB). Peak memory consumption was 17.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 12477.14 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 53.7 MB in the beginning and 41.0 MB in the end (delta: 12.7 MB). Peak memory consumption was 34.4 MB. Max. memory is 16.1 GB. * Witness Printer took 201.25 ms. Allocated memory is still 117.4 MB. Free memory was 41.0 MB in the beginning and 75.6 MB in the end (delta: -34.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L134] int pumpRunning = 0; [L135] int systemActive = 1; [L366] int cleanupTimeShifts = 4; [L464] int methAndRunningLastTime ; [L504] int waterLevel = 1; [L505] int methaneLevelCritical = 0; [L767] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L441] int retValue_acc ; [L442] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L357] int retValue_acc ; [L360] retValue_acc = 1 [L361] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L448] tmp = valid_product() [L450] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L469] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L58] int splverifierCounter ; [L59] int tmp ; [L60] int tmp___0 ; [L61] int tmp___1 ; [L62] int tmp___2 ; [L65] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L67] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L69] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L75] tmp = __VERIFIER_nondet_int() [L77] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L522] COND TRUE waterLevel < 2 [L523] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L85] tmp___0 = __VERIFIER_nondet_int() [L87] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L95] tmp___2 = __VERIFIER_nondet_int() [L97] COND TRUE \read(tmp___2) [L323] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L142] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L149] COND TRUE \read(systemActive) [L171] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L174] COND TRUE ! pumpRunning [L286] int retValue_acc ; [L287] int tmp ; [L288] int tmp___0 ; [L584] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L587] COND FALSE !(waterLevel < 2) [L591] retValue_acc = 0 [L592] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L292] tmp = isHighWaterSensorDry() [L294] COND FALSE !(\read(tmp)) [L297] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L299] retValue_acc = tmp___0 [L300] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L176] tmp = isHighWaterLevel() [L178] COND TRUE \read(tmp) [L205] int tmp ; [L230] int retValue_acc ; [L543] int retValue_acc ; [L546] retValue_acc = methaneLevelCritical [L547] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L234] retValue_acc = isMethaneLevelCritical() [L236] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L209] tmp = isMethaneAlarm() [L211] COND FALSE !(\read(tmp)) [L199] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L474] int tmp ; [L475] int tmp___0 ; [L543] int retValue_acc ; [L546] retValue_acc = methaneLevelCritical [L547] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L479] tmp = isMethaneLevelCritical() [L481] COND FALSE !(\read(tmp)) [L497] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L67] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L69] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L75] tmp = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L85] tmp___0 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L534] COND FALSE !(\read(methaneLevelCritical)) [L537] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L95] tmp___2 = __VERIFIER_nondet_int() [L97] COND TRUE \read(tmp___2) [L323] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L142] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L510] COND TRUE waterLevel > 0 [L511] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L149] COND TRUE \read(systemActive) [L171] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L174] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L474] int tmp ; [L475] int tmp___0 ; [L543] int retValue_acc ; [L546] retValue_acc = methaneLevelCritical [L547] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L479] tmp = isMethaneLevelCritical() [L481] COND TRUE \read(tmp) [L241] int retValue_acc ; [L244] retValue_acc = pumpRunning [L245] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L483] tmp___0 = isPumpRunning() [L485] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L486] COND FALSE !(\read(methAndRunningLastTime)) [L491] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L67] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L69] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L75] tmp = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L85] tmp___0 = __VERIFIER_nondet_int() [L87] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L95] tmp___2 = __VERIFIER_nondet_int() [L97] COND TRUE \read(tmp___2) [L323] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L142] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L510] COND TRUE waterLevel > 0 [L511] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L149] COND TRUE \read(systemActive) [L171] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L174] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L474] int tmp ; [L475] int tmp___0 ; [L543] int retValue_acc ; [L546] retValue_acc = methaneLevelCritical [L547] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L479] tmp = isMethaneLevelCritical() [L481] COND TRUE \read(tmp) [L241] int retValue_acc ; [L244] retValue_acc = pumpRunning [L245] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L483] tmp___0 = isPumpRunning() [L485] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L486] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L3] __assert_fail("0", "minepump_spec2_product44.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 96 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 12.1s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 955 SDtfs, 1368 SDslu, 2172 SDs, 0 SdLazy, 226 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 673 GetRequests, 624 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=315occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 1614 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.9s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 402 NumberOfCodeBlocks, 402 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 644 ConstructedInterpolants, 0 QuantifiedInterpolants, 36294 SizeOfPredicates, 21 NumberOfNonLiveVariables, 2319 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 PerfectInterpolantSequences, 28/28 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...