./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product50.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_7dd0b4af-f2ef-4982-b863-2336c353fa01/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7dd0b4af-f2ef-4982-b863-2336c353fa01/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7dd0b4af-f2ef-4982-b863-2336c353fa01/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7dd0b4af-f2ef-4982-b863-2336c353fa01/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product50.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7dd0b4af-f2ef-4982-b863-2336c353fa01/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7dd0b4af-f2ef-4982-b863-2336c353fa01/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 46490a57ce91137af910512252196515ce511def ............................................................................................................................................ 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_7dd0b4af-f2ef-4982-b863-2336c353fa01/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7dd0b4af-f2ef-4982-b863-2336c353fa01/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7dd0b4af-f2ef-4982-b863-2336c353fa01/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7dd0b4af-f2ef-4982-b863-2336c353fa01/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product50.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7dd0b4af-f2ef-4982-b863-2336c353fa01/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7dd0b4af-f2ef-4982-b863-2336c353fa01/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 46490a57ce91137af910512252196515ce511def .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 13:04:01,846 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:04:01,849 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:04:01,907 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:04:01,908 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:04:01,909 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:04:01,917 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:04:01,922 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:04:01,925 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:04:01,933 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:04:01,934 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:04:01,936 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:04:01,937 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:04:01,941 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:04:01,942 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:04:01,945 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:04:01,946 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:04:01,948 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:04:01,954 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:04:01,962 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:04:01,964 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:04:01,965 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:04:01,968 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:04:01,969 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:04:01,979 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:04:01,979 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:04:01,979 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:04:01,982 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:04:01,982 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:04:01,984 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:04:01,984 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:04:01,986 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:04:01,988 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:04:01,989 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:04:01,990 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:04:01,990 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:04:01,991 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:04:01,992 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:04:01,992 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:04:01,993 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:04:01,994 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:04:01,996 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7dd0b4af-f2ef-4982-b863-2336c353fa01/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:04:02,022 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:04:02,022 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:04:02,023 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:04:02,024 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:04:02,024 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:04:02,024 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:04:02,024 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:04:02,025 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:04:02,025 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:04:02,025 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:04:02,025 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:04:02,026 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:04:02,026 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:04:02,026 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:04:02,026 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:04:02,027 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:04:02,027 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:04:02,028 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:04:02,028 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:04:02,028 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:04:02,028 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:04:02,029 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:04:02,029 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:04:02,029 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:04:02,029 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:04:02,030 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:04:02,030 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:04:02,030 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:04:02,030 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:04:02,031 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:04:02,031 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:04:02,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:04:02,031 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:04:02,032 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:04:02,032 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:04:02,032 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:04:02,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:04:02,033 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:04:02,033 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:04:02,033 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:04:02,033 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_7dd0b4af-f2ef-4982-b863-2336c353fa01/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7dd0b4af-f2ef-4982-b863-2336c353fa01/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 46490a57ce91137af910512252196515ce511def [2020-11-22 13:04:02,327 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:04:02,366 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:04:02,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:04:02,370 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:04:02,378 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:04:02,379 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7dd0b4af-f2ef-4982-b863-2336c353fa01/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product50.cil.c [2020-11-22 13:04:02,447 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7dd0b4af-f2ef-4982-b863-2336c353fa01/bin/utaipan/data/d23bdd5f0/9e7d29b29aa142dba15cfda043133eb1/FLAGfa8da10cd [2020-11-22 13:04:02,903 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:04:02,904 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7dd0b4af-f2ef-4982-b863-2336c353fa01/sv-benchmarks/c/product-lines/minepump_spec1_product50.cil.c [2020-11-22 13:04:02,917 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7dd0b4af-f2ef-4982-b863-2336c353fa01/bin/utaipan/data/d23bdd5f0/9e7d29b29aa142dba15cfda043133eb1/FLAGfa8da10cd [2020-11-22 13:04:03,259 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7dd0b4af-f2ef-4982-b863-2336c353fa01/bin/utaipan/data/d23bdd5f0/9e7d29b29aa142dba15cfda043133eb1 [2020-11-22 13:04:03,262 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:04:03,264 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:04:03,266 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:04:03,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:04:03,269 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:04:03,270 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:04:03" (1/1) ... [2020-11-22 13:04:03,272 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2adb790b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:03, skipping insertion in model container [2020-11-22 13:04:03,273 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:04:03" (1/1) ... [2020-11-22 13:04:03,279 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:04:03,330 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:04:03,643 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:04:03,654 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 13:04:03,655 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7c570945 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:03, skipping insertion in model container [2020-11-22 13:04:03,655 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:04:03,656 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-22 13:04:03,658 INFO L168 Benchmark]: Toolchain (without parser) took 393.06 ms. Allocated memory is still 117.4 MB. Free memory was 77.6 MB in the beginning and 89.7 MB in the end (delta: -12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:03,659 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 117.4 MB. Free memory is still 94.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:04:03,660 INFO L168 Benchmark]: CACSL2BoogieTranslator took 390.06 ms. Allocated memory is still 117.4 MB. Free memory was 77.4 MB in the beginning and 89.7 MB in the end (delta: -12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:03,661 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 117.4 MB. Free memory is still 94.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 390.06 ms. Allocated memory is still 117.4 MB. Free memory was 77.4 MB in the beginning and 89.7 MB in the end (delta: -12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 630]: 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 13:04:05,995 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:04:05,997 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:04:06,027 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:04:06,028 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:04:06,029 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:04:06,031 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:04:06,034 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:04:06,036 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:04:06,038 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:04:06,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:04:06,041 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:04:06,041 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:04:06,043 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:04:06,044 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:04:06,046 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:04:06,047 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:04:06,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:04:06,050 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:04:06,053 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:04:06,055 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:04:06,057 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:04:06,059 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:04:06,060 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:04:06,064 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:04:06,064 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:04:06,065 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:04:06,066 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:04:06,067 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:04:06,068 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:04:06,085 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:04:06,089 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:04:06,094 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:04:06,095 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:04:06,096 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:04:06,096 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:04:06,097 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:04:06,097 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:04:06,098 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:04:06,099 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:04:06,100 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:04:06,100 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7dd0b4af-f2ef-4982-b863-2336c353fa01/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 13:04:06,125 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:04:06,125 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:04:06,126 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:04:06,126 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:04:06,127 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:04:06,127 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:04:06,127 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:04:06,127 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:04:06,128 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:04:06,128 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:04:06,129 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:04:06,129 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:04:06,129 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:04:06,130 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:04:06,130 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:04:06,130 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:04:06,130 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:04:06,131 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 13:04:06,131 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 13:04:06,131 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:04:06,131 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:04:06,132 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:04:06,132 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:04:06,132 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:04:06,132 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 13:04:06,133 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:04:06,133 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:04:06,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:04:06,133 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:04:06,134 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:04:06,134 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:04:06,134 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 13:04:06,134 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 13:04:06,135 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:04:06,135 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:04:06,135 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:04:06,135 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_7dd0b4af-f2ef-4982-b863-2336c353fa01/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7dd0b4af-f2ef-4982-b863-2336c353fa01/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 46490a57ce91137af910512252196515ce511def [2020-11-22 13:04:06,517 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:04:06,560 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:04:06,565 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:04:06,566 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:04:06,567 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:04:06,568 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7dd0b4af-f2ef-4982-b863-2336c353fa01/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product50.cil.c [2020-11-22 13:04:06,651 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7dd0b4af-f2ef-4982-b863-2336c353fa01/bin/utaipan/data/04ac0a8bb/feab282157d7461f82e9fbbed3f57fd5/FLAGe5d61e4c0 [2020-11-22 13:04:07,254 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:04:07,254 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7dd0b4af-f2ef-4982-b863-2336c353fa01/sv-benchmarks/c/product-lines/minepump_spec1_product50.cil.c [2020-11-22 13:04:07,285 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7dd0b4af-f2ef-4982-b863-2336c353fa01/bin/utaipan/data/04ac0a8bb/feab282157d7461f82e9fbbed3f57fd5/FLAGe5d61e4c0 [2020-11-22 13:04:07,582 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7dd0b4af-f2ef-4982-b863-2336c353fa01/bin/utaipan/data/04ac0a8bb/feab282157d7461f82e9fbbed3f57fd5 [2020-11-22 13:04:07,585 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:04:07,586 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:04:07,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:04:07,593 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:04:07,599 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:04:07,601 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:04:07" (1/1) ... [2020-11-22 13:04:07,604 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fc25174 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:07, skipping insertion in model container [2020-11-22 13:04:07,604 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:04:07" (1/1) ... [2020-11-22 13:04:07,616 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:04:07,685 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:04:08,083 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:04:08,122 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-22 13:04:08,149 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:04:08,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:04:08,264 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:04:08,350 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:04:08,401 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:04:08,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:08 WrapperNode [2020-11-22 13:04:08,402 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:04:08,403 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:04:08,403 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:04:08,403 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:04:08,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:08" (1/1) ... [2020-11-22 13:04:08,452 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:08" (1/1) ... [2020-11-22 13:04:08,515 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:04:08,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:04:08,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:04:08,516 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:04:08,524 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:08" (1/1) ... [2020-11-22 13:04:08,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:08" (1/1) ... [2020-11-22 13:04:08,529 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:08" (1/1) ... [2020-11-22 13:04:08,530 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:08" (1/1) ... [2020-11-22 13:04:08,545 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:08" (1/1) ... [2020-11-22 13:04:08,553 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:08" (1/1) ... [2020-11-22 13:04:08,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:08" (1/1) ... [2020-11-22 13:04:08,563 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:04:08,564 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:04:08,564 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:04:08,565 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:04:08,565 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7dd0b4af-f2ef-4982-b863-2336c353fa01/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 13:04:08,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:04:08,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 13:04:08,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:04:08,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:04:11,116 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:04:11,117 INFO L298 CfgBuilder]: Removed 164 assume(true) statements. [2020-11-22 13:04:11,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:04:11 BoogieIcfgContainer [2020-11-22 13:04:11,119 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:04:11,120 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:04:11,120 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:04:11,123 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:04:11,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:04:07" (1/3) ... [2020-11-22 13:04:11,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11570969 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:04:11, skipping insertion in model container [2020-11-22 13:04:11,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:08" (2/3) ... [2020-11-22 13:04:11,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11570969 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:04:11, skipping insertion in model container [2020-11-22 13:04:11,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:04:11" (3/3) ... [2020-11-22 13:04:11,127 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product50.cil.c [2020-11-22 13:04:11,137 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:04:11,141 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-22 13:04:11,153 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-22 13:04:11,176 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:04:11,176 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:04:11,176 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:04:11,177 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:04:11,177 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:04:11,177 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:04:11,177 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:04:11,177 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:04:11,192 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states. [2020-11-22 13:04:11,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-22 13:04:11,198 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:11,198 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:04:11,199 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:11,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:11,204 INFO L82 PathProgramCache]: Analyzing trace with hash -96008729, now seen corresponding path program 1 times [2020-11-22 13:04:11,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:04:11,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [712967814] [2020-11-22 13:04:11,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7dd0b4af-f2ef-4982-b863-2336c353fa01/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 13:04:11,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:11,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 13:04:11,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:04:11,469 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 13:04:11,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:04:11,478 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 13:04:11,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [712967814] [2020-11-22 13:04:11,480 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:04:11,481 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 13:04:11,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139286852] [2020-11-22 13:04:11,485 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 13:04:11,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:04:11,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 13:04:11,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:04:11,508 INFO L87 Difference]: Start difference. First operand 120 states. Second operand 2 states. [2020-11-22 13:04:11,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:04:11,560 INFO L93 Difference]: Finished difference Result 231 states and 350 transitions. [2020-11-22 13:04:11,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 13:04:11,561 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-11-22 13:04:11,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:04:11,571 INFO L225 Difference]: With dead ends: 231 [2020-11-22 13:04:11,572 INFO L226 Difference]: Without dead ends: 113 [2020-11-22 13:04:11,575 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:04:11,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-11-22 13:04:11,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2020-11-22 13:04:11,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-11-22 13:04:11,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 165 transitions. [2020-11-22 13:04:11,616 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 165 transitions. Word has length 16 [2020-11-22 13:04:11,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:04:11,617 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 165 transitions. [2020-11-22 13:04:11,617 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 13:04:11,617 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 165 transitions. [2020-11-22 13:04:11,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-22 13:04:11,618 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:11,618 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:04:11,831 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 13:04:11,832 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:11,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:11,832 INFO L82 PathProgramCache]: Analyzing trace with hash -1142765626, now seen corresponding path program 1 times [2020-11-22 13:04:11,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:04:11,833 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [844427393] [2020-11-22 13:04:11,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7dd0b4af-f2ef-4982-b863-2336c353fa01/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 13:04:12,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:12,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:04:12,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:04:12,037 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 13:04:12,038 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:04:12,048 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 13:04:12,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [844427393] [2020-11-22 13:04:12,048 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:04:12,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 13:04:12,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616469202] [2020-11-22 13:04:12,050 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:04:12,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:04:12,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:04:12,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:04:12,051 INFO L87 Difference]: Start difference. First operand 113 states and 165 transitions. Second operand 4 states. [2020-11-22 13:04:12,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:04:12,067 INFO L93 Difference]: Finished difference Result 113 states and 165 transitions. [2020-11-22 13:04:12,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:04:12,068 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-22 13:04:12,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:04:12,069 INFO L225 Difference]: With dead ends: 113 [2020-11-22 13:04:12,070 INFO L226 Difference]: Without dead ends: 47 [2020-11-22 13:04:12,071 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:04:12,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-22 13:04:12,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-11-22 13:04:12,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-11-22 13:04:12,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2020-11-22 13:04:12,077 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 17 [2020-11-22 13:04:12,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:04:12,078 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2020-11-22 13:04:12,078 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:04:12,078 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2020-11-22 13:04:12,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-22 13:04:12,079 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:12,079 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] [2020-11-22 13:04:12,291 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 13:04:12,292 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:12,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:12,293 INFO L82 PathProgramCache]: Analyzing trace with hash -230586389, now seen corresponding path program 1 times [2020-11-22 13:04:12,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:04:12,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1151489675] [2020-11-22 13:04:12,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7dd0b4af-f2ef-4982-b863-2336c353fa01/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 13:04:12,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:12,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:04:12,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:04:12,480 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 13:04:12,480 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:04:12,492 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 13:04:12,492 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1151489675] [2020-11-22 13:04:12,492 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:04:12,492 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 13:04:12,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090406329] [2020-11-22 13:04:12,493 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:04:12,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:04:12,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:04:12,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:04:12,494 INFO L87 Difference]: Start difference. First operand 47 states and 68 transitions. Second operand 4 states. [2020-11-22 13:04:12,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:04:12,545 INFO L93 Difference]: Finished difference Result 88 states and 130 transitions. [2020-11-22 13:04:12,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:04:12,546 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-11-22 13:04:12,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:04:12,547 INFO L225 Difference]: With dead ends: 88 [2020-11-22 13:04:12,547 INFO L226 Difference]: Without dead ends: 47 [2020-11-22 13:04:12,548 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:04:12,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-22 13:04:12,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-11-22 13:04:12,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-11-22 13:04:12,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2020-11-22 13:04:12,556 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 22 [2020-11-22 13:04:12,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:04:12,557 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2020-11-22 13:04:12,557 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:04:12,557 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2020-11-22 13:04:12,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-22 13:04:12,558 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:12,558 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 13:04:12,778 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 13:04:12,779 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:12,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:12,779 INFO L82 PathProgramCache]: Analyzing trace with hash -108421843, now seen corresponding path program 1 times [2020-11-22 13:04:12,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:04:12,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2120389957] [2020-11-22 13:04:12,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7dd0b4af-f2ef-4982-b863-2336c353fa01/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 13:04:12,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:12,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:04:12,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:04:12,965 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 13:04:12,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:04:12,968 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 13:04:12,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2120389957] [2020-11-22 13:04:12,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:04:12,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-22 13:04:12,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621060806] [2020-11-22 13:04:12,970 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:04:12,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:04:12,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:04:12,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:04:12,975 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand 3 states. [2020-11-22 13:04:13,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:04:13,064 INFO L93 Difference]: Finished difference Result 109 states and 158 transitions. [2020-11-22 13:04:13,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:04:13,064 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-11-22 13:04:13,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:04:13,065 INFO L225 Difference]: With dead ends: 109 [2020-11-22 13:04:13,065 INFO L226 Difference]: Without dead ends: 68 [2020-11-22 13:04:13,066 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:04:13,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-11-22 13:04:13,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2020-11-22 13:04:13,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-11-22 13:04:13,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 93 transitions. [2020-11-22 13:04:13,082 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 93 transitions. Word has length 24 [2020-11-22 13:04:13,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:04:13,083 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 93 transitions. [2020-11-22 13:04:13,083 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:04:13,083 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 93 transitions. [2020-11-22 13:04:13,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-22 13:04:13,084 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:13,084 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] [2020-11-22 13:04:13,290 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-22 13:04:13,290 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:13,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:13,291 INFO L82 PathProgramCache]: Analyzing trace with hash -1619186466, now seen corresponding path program 1 times [2020-11-22 13:04:13,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:04:13,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1671882429] [2020-11-22 13:04:13,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7dd0b4af-f2ef-4982-b863-2336c353fa01/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 13:04:13,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:13,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 13:04:13,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:04:13,503 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 13:04:13,503 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:04:13,528 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 13:04:13,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1671882429] [2020-11-22 13:04:13,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:04:13,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-22 13:04:13,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655922330] [2020-11-22 13:04:13,531 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:04:13,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:04:13,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:04:13,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:04:13,532 INFO L87 Difference]: Start difference. First operand 66 states and 93 transitions. Second operand 5 states. [2020-11-22 13:04:13,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:04:13,622 INFO L93 Difference]: Finished difference Result 175 states and 245 transitions. [2020-11-22 13:04:13,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 13:04:13,623 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-11-22 13:04:13,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:04:13,624 INFO L225 Difference]: With dead ends: 175 [2020-11-22 13:04:13,624 INFO L226 Difference]: Without dead ends: 115 [2020-11-22 13:04:13,625 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 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 13:04:13,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-11-22 13:04:13,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 72. [2020-11-22 13:04:13,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-11-22 13:04:13,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 99 transitions. [2020-11-22 13:04:13,636 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 99 transitions. Word has length 30 [2020-11-22 13:04:13,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:04:13,636 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 99 transitions. [2020-11-22 13:04:13,637 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:04:13,637 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 99 transitions. [2020-11-22 13:04:13,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-22 13:04:13,638 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:13,638 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] [2020-11-22 13:04:13,846 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-22 13:04:13,846 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:13,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:13,847 INFO L82 PathProgramCache]: Analyzing trace with hash 1043324577, now seen corresponding path program 1 times [2020-11-22 13:04:13,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:04:13,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2112124636] [2020-11-22 13:04:13,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7dd0b4af-f2ef-4982-b863-2336c353fa01/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 13:04:14,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:14,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 13:04:14,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:04:14,064 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 13:04:14,064 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:04:14,069 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 13:04:14,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2112124636] [2020-11-22 13:04:14,073 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:04:14,074 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-11-22 13:04:14,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665297681] [2020-11-22 13:04:14,075 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:04:14,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:04:14,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:04:14,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:04:14,078 INFO L87 Difference]: Start difference. First operand 72 states and 99 transitions. Second operand 5 states. [2020-11-22 13:04:14,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:04:14,195 INFO L93 Difference]: Finished difference Result 382 states and 538 transitions. [2020-11-22 13:04:14,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-22 13:04:14,196 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-11-22 13:04:14,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:04:14,198 INFO L225 Difference]: With dead ends: 382 [2020-11-22 13:04:14,198 INFO L226 Difference]: Without dead ends: 316 [2020-11-22 13:04:14,199 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 55 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 13:04:14,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2020-11-22 13:04:14,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 132. [2020-11-22 13:04:14,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-11-22 13:04:14,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 181 transitions. [2020-11-22 13:04:14,224 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 181 transitions. Word has length 30 [2020-11-22 13:04:14,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:04:14,224 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 181 transitions. [2020-11-22 13:04:14,225 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:04:14,225 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 181 transitions. [2020-11-22 13:04:14,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-22 13:04:14,226 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:14,226 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] [2020-11-22 13:04:14,443 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-22 13:04:14,443 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:14,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:14,444 INFO L82 PathProgramCache]: Analyzing trace with hash 1715093079, now seen corresponding path program 1 times [2020-11-22 13:04:14,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:04:14,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [949523686] [2020-11-22 13:04:14,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7dd0b4af-f2ef-4982-b863-2336c353fa01/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 13:04:14,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:14,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 13:04:14,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:04:14,637 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 13:04:14,637 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:04:14,643 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 13:04:14,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [949523686] [2020-11-22 13:04:14,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:04:14,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-22 13:04:14,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239183744] [2020-11-22 13:04:14,646 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:04:14,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:04:14,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:04:14,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:04:14,647 INFO L87 Difference]: Start difference. First operand 132 states and 181 transitions. Second operand 5 states. [2020-11-22 13:04:14,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:04:14,837 INFO L93 Difference]: Finished difference Result 378 states and 520 transitions. [2020-11-22 13:04:14,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-22 13:04:14,838 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-11-22 13:04:14,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:04:14,841 INFO L225 Difference]: With dead ends: 378 [2020-11-22 13:04:14,841 INFO L226 Difference]: Without dead ends: 376 [2020-11-22 13:04:14,841 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 59 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 13:04:14,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2020-11-22 13:04:14,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 132. [2020-11-22 13:04:14,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-11-22 13:04:14,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 180 transitions. [2020-11-22 13:04:14,873 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 180 transitions. Word has length 31 [2020-11-22 13:04:14,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:04:14,874 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 180 transitions. [2020-11-22 13:04:14,874 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:04:14,874 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 180 transitions. [2020-11-22 13:04:14,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-22 13:04:14,881 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:14,881 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] [2020-11-22 13:04:15,098 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-11-22 13:04:15,098 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:15,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:15,099 INFO L82 PathProgramCache]: Analyzing trace with hash -1340444974, now seen corresponding path program 1 times [2020-11-22 13:04:15,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:04:15,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [320862469] [2020-11-22 13:04:15,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7dd0b4af-f2ef-4982-b863-2336c353fa01/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 13:04:15,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:15,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-22 13:04:15,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:04:15,303 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 13:04:15,303 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:04:15,319 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 13:04:15,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [320862469] [2020-11-22 13:04:15,319 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:04:15,319 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-22 13:04:15,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237701971] [2020-11-22 13:04:15,320 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-22 13:04:15,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:04:15,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-22 13:04:15,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:04:15,321 INFO L87 Difference]: Start difference. First operand 132 states and 180 transitions. Second operand 6 states. [2020-11-22 13:04:15,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:04:15,402 INFO L93 Difference]: Finished difference Result 354 states and 478 transitions. [2020-11-22 13:04:15,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:04:15,404 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-11-22 13:04:15,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:04:15,405 INFO L225 Difference]: With dead ends: 354 [2020-11-22 13:04:15,405 INFO L226 Difference]: Without dead ends: 228 [2020-11-22 13:04:15,407 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 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 13:04:15,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2020-11-22 13:04:15,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 140. [2020-11-22 13:04:15,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-11-22 13:04:15,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 188 transitions. [2020-11-22 13:04:15,437 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 188 transitions. Word has length 31 [2020-11-22 13:04:15,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:04:15,437 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 188 transitions. [2020-11-22 13:04:15,437 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-22 13:04:15,437 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 188 transitions. [2020-11-22 13:04:15,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-22 13:04:15,439 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:15,439 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] [2020-11-22 13:04:15,658 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-11-22 13:04:15,659 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:15,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:15,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1082279536, now seen corresponding path program 1 times [2020-11-22 13:04:15,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:04:15,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1216163083] [2020-11-22 13:04:15,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7dd0b4af-f2ef-4982-b863-2336c353fa01/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 13:04:15,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:15,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:04:15,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:04:15,842 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 13:04:15,842 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:04:15,856 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 13:04:15,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1216163083] [2020-11-22 13:04:15,857 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:04:15,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-22 13:04:15,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607748623] [2020-11-22 13:04:15,857 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:04:15,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:04:15,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:04:15,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:04:15,858 INFO L87 Difference]: Start difference. First operand 140 states and 188 transitions. Second operand 4 states. [2020-11-22 13:04:15,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:04:15,952 INFO L93 Difference]: Finished difference Result 430 states and 580 transitions. [2020-11-22 13:04:15,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:04:15,953 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-11-22 13:04:15,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:04:15,955 INFO L225 Difference]: With dead ends: 430 [2020-11-22 13:04:15,955 INFO L226 Difference]: Without dead ends: 296 [2020-11-22 13:04:15,956 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 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 13:04:15,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-11-22 13:04:15,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 244. [2020-11-22 13:04:15,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-11-22 13:04:15,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 325 transitions. [2020-11-22 13:04:15,990 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 325 transitions. Word has length 31 [2020-11-22 13:04:15,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:04:15,990 INFO L481 AbstractCegarLoop]: Abstraction has 244 states and 325 transitions. [2020-11-22 13:04:15,990 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:04:15,990 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 325 transitions. [2020-11-22 13:04:15,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-22 13:04:15,993 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:15,993 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] [2020-11-22 13:04:16,213 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-11-22 13:04:16,214 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:16,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:16,214 INFO L82 PathProgramCache]: Analyzing trace with hash 1099927890, now seen corresponding path program 1 times [2020-11-22 13:04:16,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:04:16,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1309283995] [2020-11-22 13:04:16,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7dd0b4af-f2ef-4982-b863-2336c353fa01/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 13:04:17,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:04:17,938 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:04:19,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:04:19,472 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:04:19,625 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-22 13:04:19,625 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:04:19,847 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-11-22 13:04:20,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:04:20 BoogieIcfgContainer [2020-11-22 13:04:20,014 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:04:20,014 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:04:20,015 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:04:20,015 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:04:20,015 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:04:11" (3/4) ... [2020-11-22 13:04:20,017 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 13:04:20,109 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7dd0b4af-f2ef-4982-b863-2336c353fa01/bin/utaipan/witness.graphml [2020-11-22 13:04:20,110 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:04:20,111 INFO L168 Benchmark]: Toolchain (without parser) took 12524.19 ms. Allocated memory was 65.0 MB in the beginning and 117.4 MB in the end (delta: 52.4 MB). Free memory was 44.9 MB in the beginning and 79.7 MB in the end (delta: -34.9 MB). Peak memory consumption was 20.0 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:20,112 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 65.0 MB. Free memory is still 46.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:04:20,112 INFO L168 Benchmark]: CACSL2BoogieTranslator took 808.94 ms. Allocated memory is still 65.0 MB. Free memory was 44.6 MB in the beginning and 32.8 MB in the end (delta: 11.8 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:20,113 INFO L168 Benchmark]: Boogie Procedure Inliner took 112.42 ms. Allocated memory was 65.0 MB in the beginning and 96.5 MB in the end (delta: 31.5 MB). Free memory was 32.8 MB in the beginning and 76.9 MB in the end (delta: -44.1 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:20,113 INFO L168 Benchmark]: Boogie Preprocessor took 47.61 ms. Allocated memory is still 96.5 MB. Free memory was 76.9 MB in the beginning and 74.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:20,114 INFO L168 Benchmark]: RCFGBuilder took 2554.64 ms. Allocated memory is still 96.5 MB. Free memory was 74.4 MB in the beginning and 70.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 34.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:20,114 INFO L168 Benchmark]: TraceAbstraction took 8893.69 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 70.9 MB in the beginning and 92.3 MB in the end (delta: -21.4 MB). Peak memory consumption was 63.3 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:20,114 INFO L168 Benchmark]: Witness Printer took 95.37 ms. Allocated memory is still 117.4 MB. Free memory was 92.3 MB in the beginning and 79.7 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:20,117 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 65.0 MB. Free memory is still 46.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 808.94 ms. Allocated memory is still 65.0 MB. Free memory was 44.6 MB in the beginning and 32.8 MB in the end (delta: 11.8 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 112.42 ms. Allocated memory was 65.0 MB in the beginning and 96.5 MB in the end (delta: 31.5 MB). Free memory was 32.8 MB in the beginning and 76.9 MB in the end (delta: -44.1 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.61 ms. Allocated memory is still 96.5 MB. Free memory was 76.9 MB in the beginning and 74.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2554.64 ms. Allocated memory is still 96.5 MB. Free memory was 74.4 MB in the beginning and 70.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 34.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8893.69 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 70.9 MB in the beginning and 92.3 MB in the end (delta: -21.4 MB). Peak memory consumption was 63.3 MB. Max. memory is 16.1 GB. * Witness Printer took 95.37 ms. Allocated memory is still 117.4 MB. Free memory was 92.3 MB in the beginning and 79.7 MB in the end (delta: 12.6 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: [L78] int waterLevel = 1; [L79] int methaneLevelCritical = 0; [L181] int cleanupTimeShifts = 4; [L397] int pumpRunning = 0; [L398] int systemActive = 1; [L771] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L260] int retValue_acc ; [L261] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L309] int retValue_acc ; [L312] retValue_acc = 1 [L313] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L267] tmp = valid_product() [L269] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L320] int splverifierCounter ; [L321] int tmp ; [L322] int tmp___0 ; [L323] int tmp___1 ; [L324] int tmp___2 ; [L327] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L329] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L331] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L337] tmp = __VERIFIER_nondet_int() [L339] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L96] COND TRUE waterLevel < 2 [L97] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L347] tmp___0 = __VERIFIER_nondet_int() [L349] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L108] COND FALSE !(\read(methaneLevelCritical)) [L111] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L357] tmp___2 = __VERIFIER_nondet_int() [L359] COND TRUE \read(tmp___2) [L597] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L404] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L411] COND TRUE \read(systemActive) [L459] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L462] COND FALSE !(\read(pumpRunning)) [L433] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L436] COND TRUE ! pumpRunning [L556] int retValue_acc ; [L557] int tmp ; [L558] int tmp___0 ; [L158] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L161] COND FALSE !(waterLevel < 2) [L165] retValue_acc = 0 [L166] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L562] tmp = isHighWaterSensorDry() [L564] COND FALSE !(\read(tmp)) [L567] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L569] retValue_acc = tmp___0 [L570] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L438] tmp = isHighWaterLevel() [L440] COND TRUE \read(tmp) [L487] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L46] int tmp ; [L47] int tmp___0 ; [L117] int retValue_acc ; [L120] retValue_acc = methaneLevelCritical [L121] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L51] tmp = isMethaneLevelCritical() [L53] COND TRUE \read(tmp) [L511] int retValue_acc ; [L514] retValue_acc = pumpRunning [L515] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L55] tmp___0 = isPumpRunning() [L57] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec1_product50.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 120 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 8.6s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 847 SDtfs, 1151 SDslu, 1244 SDs, 0 SdLazy, 160 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 462 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=244occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 613 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.6s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 264 NumberOfCodeBlocks, 264 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 446 ConstructedInterpolants, 0 QuantifiedInterpolants, 21188 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1831 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 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...