./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product56.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_246e3578-60e2-4e8b-803e-c336ab1dde8a/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_246e3578-60e2-4e8b-803e-c336ab1dde8a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_246e3578-60e2-4e8b-803e-c336ab1dde8a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_246e3578-60e2-4e8b-803e-c336ab1dde8a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_246e3578-60e2-4e8b-803e-c336ab1dde8a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_246e3578-60e2-4e8b-803e-c336ab1dde8a/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 8d89cb30057b8721685c80693144eb2455c18c87 ............................................................................................................................................ 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_246e3578-60e2-4e8b-803e-c336ab1dde8a/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_246e3578-60e2-4e8b-803e-c336ab1dde8a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_246e3578-60e2-4e8b-803e-c336ab1dde8a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_246e3578-60e2-4e8b-803e-c336ab1dde8a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_246e3578-60e2-4e8b-803e-c336ab1dde8a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_246e3578-60e2-4e8b-803e-c336ab1dde8a/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 8d89cb30057b8721685c80693144eb2455c18c87 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 12:50:49,583 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:50:49,586 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:50:49,639 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:50:49,640 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:50:49,642 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:50:49,644 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:50:49,647 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:50:49,650 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:50:49,652 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:50:49,654 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:50:49,656 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:50:49,657 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:50:49,658 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:50:49,660 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:50:49,662 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:50:49,664 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:50:49,695 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:50:49,698 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:50:49,701 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:50:49,714 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:50:49,716 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:50:49,717 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:50:49,719 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:50:49,723 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:50:49,724 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:50:49,724 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:50:49,726 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:50:49,727 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:50:49,728 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:50:49,729 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:50:49,742 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:50:49,745 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:50:49,746 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:50:49,748 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:50:49,748 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:50:49,749 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:50:49,749 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:50:49,750 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:50:49,752 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:50:49,753 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:50:49,760 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_246e3578-60e2-4e8b-803e-c336ab1dde8a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 12:50:49,825 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:50:49,829 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:50:49,831 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:50:49,832 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:50:49,832 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:50:49,832 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:50:49,833 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 12:50:49,833 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:50:49,833 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:50:49,833 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 12:50:49,835 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 12:50:49,835 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:50:49,836 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 12:50:49,836 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 12:50:49,836 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 12:50:49,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:50:49,837 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:50:49,838 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 12:50:49,838 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:50:49,838 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:50:49,838 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:50:49,839 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:50:49,839 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:50:49,839 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:50:49,839 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:50:49,840 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:50:49,840 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:50:49,840 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:50:49,841 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:50:49,843 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:50:49,843 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:50:49,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:50:49,844 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:50:49,845 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:50:49,845 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:50:49,845 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 12:50:49,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 12:50:49,846 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:50:49,846 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:50:49,846 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:50:49,846 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_246e3578-60e2-4e8b-803e-c336ab1dde8a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_246e3578-60e2-4e8b-803e-c336ab1dde8a/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d89cb30057b8721685c80693144eb2455c18c87 [2020-11-22 12:50:50,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:50:50,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:50:50,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:50:50,226 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:50:50,227 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:50:50,228 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_246e3578-60e2-4e8b-803e-c336ab1dde8a/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c [2020-11-22 12:50:50,304 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_246e3578-60e2-4e8b-803e-c336ab1dde8a/bin/utaipan/data/d4ad46132/00b83b4aba57478b98604bc431da7cce/FLAG21049f6ac [2020-11-22 12:50:50,983 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:50:50,984 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_246e3578-60e2-4e8b-803e-c336ab1dde8a/sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c [2020-11-22 12:50:51,027 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_246e3578-60e2-4e8b-803e-c336ab1dde8a/bin/utaipan/data/d4ad46132/00b83b4aba57478b98604bc431da7cce/FLAG21049f6ac [2020-11-22 12:50:51,211 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_246e3578-60e2-4e8b-803e-c336ab1dde8a/bin/utaipan/data/d4ad46132/00b83b4aba57478b98604bc431da7cce [2020-11-22 12:50:51,215 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:50:51,217 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:50:51,219 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:50:51,220 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:50:51,224 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:50:51,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:50:51" (1/1) ... [2020-11-22 12:50:51,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@643adce2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:50:51, skipping insertion in model container [2020-11-22 12:50:51,229 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:50:51" (1/1) ... [2020-11-22 12:50:51,238 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:50:51,297 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:50:51,673 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:50:51,687 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2020-11-22 12:50:51,688 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3a3f3549 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:50:51, skipping insertion in model container [2020-11-22 12:50:51,689 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:50:51,689 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-22 12:50:51,692 INFO L168 Benchmark]: Toolchain (without parser) took 473.50 ms. Allocated memory is still 127.9 MB. Free memory was 99.0 MB in the beginning and 103.0 MB in the end (delta: -4.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:50:51,693 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 86.0 MB. Free memory was 49.0 MB in the beginning and 49.0 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:50:51,694 INFO L168 Benchmark]: CACSL2BoogieTranslator took 469.82 ms. Allocated memory is still 127.9 MB. Free memory was 99.0 MB in the beginning and 103.0 MB in the end (delta: -4.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:50:51,697 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 86.0 MB. Free memory was 49.0 MB in the beginning and 49.0 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 469.82 ms. Allocated memory is still 127.9 MB. Free memory was 99.0 MB in the beginning and 103.0 MB in the end (delta: -4.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 70]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-22 12:50:54,663 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:50:54,666 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:50:54,709 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:50:54,710 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:50:54,711 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:50:54,714 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:50:54,718 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:50:54,721 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:50:54,723 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:50:54,724 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:50:54,726 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:50:54,727 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:50:54,729 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:50:54,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:50:54,733 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:50:54,735 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:50:54,736 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:50:54,739 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:50:54,748 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:50:54,757 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:50:54,759 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:50:54,761 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:50:54,765 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:50:54,777 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:50:54,777 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:50:54,778 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:50:54,782 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:50:54,783 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:50:54,803 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:50:54,803 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:50:54,805 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:50:54,806 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:50:54,808 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:50:54,810 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:50:54,810 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:50:54,812 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:50:54,812 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:50:54,813 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:50:54,814 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:50:54,816 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:50:54,817 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_246e3578-60e2-4e8b-803e-c336ab1dde8a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 12:50:54,850 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:50:54,850 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:50:54,851 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:50:54,852 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:50:54,852 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:50:54,853 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:50:54,853 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:50:54,854 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:50:54,854 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:50:54,855 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:50:54,856 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:50:54,856 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:50:54,856 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:50:54,857 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:50:54,857 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:50:54,858 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:50:54,858 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:50:54,858 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 12:50:54,859 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 12:50:54,859 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:50:54,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:50:54,860 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:50:54,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:50:54,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:50:54,861 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 12:50:54,862 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:50:54,862 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:50:54,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:50:54,863 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:50:54,863 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:50:54,864 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:50:54,864 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 12:50:54,865 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 12:50:54,865 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:50:54,865 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:50:54,866 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:50:54,866 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_246e3578-60e2-4e8b-803e-c336ab1dde8a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_246e3578-60e2-4e8b-803e-c336ab1dde8a/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d89cb30057b8721685c80693144eb2455c18c87 [2020-11-22 12:50:55,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:50:55,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:50:55,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:50:55,331 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:50:55,333 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:50:55,335 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_246e3578-60e2-4e8b-803e-c336ab1dde8a/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c [2020-11-22 12:50:55,424 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_246e3578-60e2-4e8b-803e-c336ab1dde8a/bin/utaipan/data/70b1ecd08/8f369adb3c5f48c39d244271e71ad520/FLAG987debcb0 [2020-11-22 12:50:56,249 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:50:56,250 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_246e3578-60e2-4e8b-803e-c336ab1dde8a/sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c [2020-11-22 12:50:56,277 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_246e3578-60e2-4e8b-803e-c336ab1dde8a/bin/utaipan/data/70b1ecd08/8f369adb3c5f48c39d244271e71ad520/FLAG987debcb0 [2020-11-22 12:50:56,562 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_246e3578-60e2-4e8b-803e-c336ab1dde8a/bin/utaipan/data/70b1ecd08/8f369adb3c5f48c39d244271e71ad520 [2020-11-22 12:50:56,565 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:50:56,568 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:50:56,572 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:50:56,573 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:50:56,577 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:50:56,579 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:50:56" (1/1) ... [2020-11-22 12:50:56,585 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@259f981a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:50:56, skipping insertion in model container [2020-11-22 12:50:56,586 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:50:56" (1/1) ... [2020-11-22 12:50:56,596 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:50:56,690 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:50:57,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:50:57,209 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-22 12:50:57,222 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:50:57,313 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:50:57,330 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 12:50:57,416 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:50:57,497 INFO L208 MainTranslator]: Completed translation [2020-11-22 12:50:57,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:50:57 WrapperNode [2020-11-22 12:50:57,498 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:50:57,499 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 12:50:57,500 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 12:50:57,500 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 12:50:57,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:50:57" (1/1) ... [2020-11-22 12:50:57,537 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:50:57" (1/1) ... [2020-11-22 12:50:57,618 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 12:50:57,619 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 12:50:57,619 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 12:50:57,619 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 12:50:57,630 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:50:57" (1/1) ... [2020-11-22 12:50:57,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:50:57" (1/1) ... [2020-11-22 12:50:57,643 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:50:57" (1/1) ... [2020-11-22 12:50:57,644 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:50:57" (1/1) ... [2020-11-22 12:50:57,681 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:50:57" (1/1) ... [2020-11-22 12:50:57,701 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:50:57" (1/1) ... [2020-11-22 12:50:57,710 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:50:57" (1/1) ... [2020-11-22 12:50:57,739 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 12:50:57,740 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 12:50:57,741 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 12:50:57,741 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 12:50:57,742 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:50:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_246e3578-60e2-4e8b-803e-c336ab1dde8a/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:50:57,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 12:50:57,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 12:50:57,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 12:50:57,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 12:51:01,223 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 12:51:01,223 INFO L298 CfgBuilder]: Removed 288 assume(true) statements. [2020-11-22 12:51:01,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:51:01 BoogieIcfgContainer [2020-11-22 12:51:01,228 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 12:51:01,232 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 12:51:01,233 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 12:51:01,236 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 12:51:01,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:50:56" (1/3) ... [2020-11-22 12:51:01,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@557d171e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:51:01, skipping insertion in model container [2020-11-22 12:51:01,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:50:57" (2/3) ... [2020-11-22 12:51:01,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@557d171e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:51:01, skipping insertion in model container [2020-11-22 12:51:01,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:51:01" (3/3) ... [2020-11-22 12:51:01,240 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product56.cil.c [2020-11-22 12:51:01,254 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 12:51:01,259 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-22 12:51:01,273 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-22 12:51:01,319 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 12:51:01,319 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 12:51:01,319 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 12:51:01,319 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 12:51:01,319 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 12:51:01,320 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 12:51:01,320 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 12:51:01,320 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 12:51:01,344 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states. [2020-11-22 12:51:01,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-22 12:51:01,351 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:51:01,352 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:51:01,352 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:51:01,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:51:01,359 INFO L82 PathProgramCache]: Analyzing trace with hash 326185497, now seen corresponding path program 1 times [2020-11-22 12:51:01,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:51:01,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1437292632] [2020-11-22 12:51:01,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_246e3578-60e2-4e8b-803e-c336ab1dde8a/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-22 12:51:01,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:51:01,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 12:51:01,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:51:01,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:51:01,671 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:51:01,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:51:01,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1437292632] [2020-11-22 12:51:01,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:51:01,680 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 12:51:01,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641344121] [2020-11-22 12:51:01,686 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 12:51:01,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:51:01,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 12:51:01,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 12:51:01,705 INFO L87 Difference]: Start difference. First operand 194 states. Second operand 2 states. [2020-11-22 12:51:01,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:51:01,757 INFO L93 Difference]: Finished difference Result 379 states and 578 transitions. [2020-11-22 12:51:01,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 12:51:01,758 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-11-22 12:51:01,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:51:01,775 INFO L225 Difference]: With dead ends: 379 [2020-11-22 12:51:01,775 INFO L226 Difference]: Without dead ends: 187 [2020-11-22 12:51:01,781 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 12:51:01,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2020-11-22 12:51:01,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2020-11-22 12:51:01,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-11-22 12:51:01,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 279 transitions. [2020-11-22 12:51:01,850 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 279 transitions. Word has length 16 [2020-11-22 12:51:01,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:51:01,851 INFO L481 AbstractCegarLoop]: Abstraction has 187 states and 279 transitions. [2020-11-22 12:51:01,851 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 12:51:01,851 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 279 transitions. [2020-11-22 12:51:01,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-22 12:51:01,853 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:51:01,853 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 12:51:02,066 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 12:51:02,067 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:51:02,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:51:02,068 INFO L82 PathProgramCache]: Analyzing trace with hash -1699548539, now seen corresponding path program 1 times [2020-11-22 12:51:02,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:51:02,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2103026335] [2020-11-22 12:51:02,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_246e3578-60e2-4e8b-803e-c336ab1dde8a/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-22 12:51:02,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:51:02,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:51:02,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:51:02,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:51:02,338 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:51:02,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:51:02,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2103026335] [2020-11-22 12:51:02,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:51:02,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 12:51:02,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940213356] [2020-11-22 12:51:02,353 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:51:02,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:51:02,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:51:02,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:51:02,355 INFO L87 Difference]: Start difference. First operand 187 states and 279 transitions. Second operand 4 states. [2020-11-22 12:51:02,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:51:02,412 INFO L93 Difference]: Finished difference Result 187 states and 279 transitions. [2020-11-22 12:51:02,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:51:02,414 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-22 12:51:02,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:51:02,416 INFO L225 Difference]: With dead ends: 187 [2020-11-22 12:51:02,420 INFO L226 Difference]: Without dead ends: 73 [2020-11-22 12:51:02,421 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 12:51:02,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-11-22 12:51:02,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-11-22 12:51:02,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-11-22 12:51:02,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 108 transitions. [2020-11-22 12:51:02,433 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 108 transitions. Word has length 17 [2020-11-22 12:51:02,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:51:02,433 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 108 transitions. [2020-11-22 12:51:02,433 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:51:02,434 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 108 transitions. [2020-11-22 12:51:02,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-22 12:51:02,435 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:51:02,435 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 12:51:02,641 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 12:51:02,642 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:51:02,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:51:02,643 INFO L82 PathProgramCache]: Analyzing trace with hash 1577730230, now seen corresponding path program 1 times [2020-11-22 12:51:02,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:51:02,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1945486291] [2020-11-22 12:51:02,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_246e3578-60e2-4e8b-803e-c336ab1dde8a/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-22 12:51:02,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:51:02,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:51:02,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:51:02,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:51:02,945 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:51:02,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:51:02,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1945486291] [2020-11-22 12:51:02,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:51:02,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 12:51:02,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907749289] [2020-11-22 12:51:02,978 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:51:02,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:51:02,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:51:02,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:51:02,979 INFO L87 Difference]: Start difference. First operand 73 states and 108 transitions. Second operand 4 states. [2020-11-22 12:51:03,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:51:03,068 INFO L93 Difference]: Finished difference Result 230 states and 346 transitions. [2020-11-22 12:51:03,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 12:51:03,070 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-11-22 12:51:03,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:51:03,072 INFO L225 Difference]: With dead ends: 230 [2020-11-22 12:51:03,072 INFO L226 Difference]: Without dead ends: 163 [2020-11-22 12:51:03,073 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:51:03,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-11-22 12:51:03,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 92. [2020-11-22 12:51:03,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-11-22 12:51:03,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 137 transitions. [2020-11-22 12:51:03,108 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 137 transitions. Word has length 22 [2020-11-22 12:51:03,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:51:03,109 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 137 transitions. [2020-11-22 12:51:03,110 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:51:03,110 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 137 transitions. [2020-11-22 12:51:03,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-22 12:51:03,111 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:51:03,111 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:51:03,315 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 12:51:03,316 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:51:03,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:51:03,317 INFO L82 PathProgramCache]: Analyzing trace with hash 792163456, now seen corresponding path program 1 times [2020-11-22 12:51:03,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:51:03,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [569908600] [2020-11-22 12:51:03,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_246e3578-60e2-4e8b-803e-c336ab1dde8a/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-22 12:51:03,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:51:03,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:51:03,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:51:03,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:51:03,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:51:03,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:51:03,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [569908600] [2020-11-22 12:51:03,623 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:51:03,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-22 12:51:03,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180516009] [2020-11-22 12:51:03,624 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 12:51:03,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:51:03,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 12:51:03,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:51:03,631 INFO L87 Difference]: Start difference. First operand 92 states and 137 transitions. Second operand 3 states. [2020-11-22 12:51:03,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:51:03,743 INFO L93 Difference]: Finished difference Result 187 states and 280 transitions. [2020-11-22 12:51:03,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:51:03,743 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-11-22 12:51:03,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:51:03,745 INFO L225 Difference]: With dead ends: 187 [2020-11-22 12:51:03,745 INFO L226 Difference]: Without dead ends: 101 [2020-11-22 12:51:03,746 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:51:03,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-11-22 12:51:03,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 99. [2020-11-22 12:51:03,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-11-22 12:51:03,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 141 transitions. [2020-11-22 12:51:03,771 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 141 transitions. Word has length 25 [2020-11-22 12:51:03,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:51:03,772 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 141 transitions. [2020-11-22 12:51:03,772 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 12:51:03,772 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 141 transitions. [2020-11-22 12:51:03,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-22 12:51:03,775 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:51:03,775 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:51:03,991 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-22 12:51:03,991 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:51:03,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:51:03,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1022954699, now seen corresponding path program 1 times [2020-11-22 12:51:03,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:51:03,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [390460094] [2020-11-22 12:51:03,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_246e3578-60e2-4e8b-803e-c336ab1dde8a/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-11-22 12:51:04,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:51:04,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 12:51:04,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:51:04,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:51:04,304 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:51:04,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:51:04,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [390460094] [2020-11-22 12:51:04,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:51:04,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-11-22 12:51:04,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528209017] [2020-11-22 12:51:04,326 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 12:51:04,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:51:04,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 12:51:04,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 12:51:04,327 INFO L87 Difference]: Start difference. First operand 99 states and 141 transitions. Second operand 5 states. [2020-11-22 12:51:04,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:51:04,553 INFO L93 Difference]: Finished difference Result 485 states and 703 transitions. [2020-11-22 12:51:04,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-22 12:51:04,554 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-11-22 12:51:04,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:51:04,558 INFO L225 Difference]: With dead ends: 485 [2020-11-22 12:51:04,560 INFO L226 Difference]: Without dead ends: 392 [2020-11-22 12:51:04,566 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-22 12:51:04,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2020-11-22 12:51:04,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 184. [2020-11-22 12:51:04,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2020-11-22 12:51:04,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 260 transitions. [2020-11-22 12:51:04,635 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 260 transitions. Word has length 25 [2020-11-22 12:51:04,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:51:04,636 INFO L481 AbstractCegarLoop]: Abstraction has 184 states and 260 transitions. [2020-11-22 12:51:04,636 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 12:51:04,636 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 260 transitions. [2020-11-22 12:51:04,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-22 12:51:04,639 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:51:04,639 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] [2020-11-22 12:51:04,862 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-22 12:51:04,862 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:51:04,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:51:04,863 INFO L82 PathProgramCache]: Analyzing trace with hash 819147605, now seen corresponding path program 1 times [2020-11-22 12:51:04,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:51:04,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1408357434] [2020-11-22 12:51:04,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_246e3578-60e2-4e8b-803e-c336ab1dde8a/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-11-22 12:51:05,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:51:05,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 12:51:05,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:51:05,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:51:05,176 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:51:05,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:51:05,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1408357434] [2020-11-22 12:51:05,193 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:51:05,194 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-11-22 12:51:05,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210650081] [2020-11-22 12:51:05,196 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 12:51:05,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:51:05,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 12:51:05,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 12:51:05,199 INFO L87 Difference]: Start difference. First operand 184 states and 260 transitions. Second operand 5 states. [2020-11-22 12:51:05,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:51:05,526 INFO L93 Difference]: Finished difference Result 522 states and 741 transitions. [2020-11-22 12:51:05,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-22 12:51:05,527 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-11-22 12:51:05,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:51:05,530 INFO L225 Difference]: With dead ends: 522 [2020-11-22 12:51:05,531 INFO L226 Difference]: Without dead ends: 520 [2020-11-22 12:51:05,531 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-22 12:51:05,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2020-11-22 12:51:05,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 184. [2020-11-22 12:51:05,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2020-11-22 12:51:05,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 258 transitions. [2020-11-22 12:51:05,557 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 258 transitions. Word has length 26 [2020-11-22 12:51:05,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:51:05,558 INFO L481 AbstractCegarLoop]: Abstraction has 184 states and 258 transitions. [2020-11-22 12:51:05,558 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 12:51:05,558 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 258 transitions. [2020-11-22 12:51:05,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-22 12:51:05,559 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:51:05,560 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 12:51:05,773 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-22 12:51:05,777 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:51:05,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:51:05,777 INFO L82 PathProgramCache]: Analyzing trace with hash -1010263109, now seen corresponding path program 1 times [2020-11-22 12:51:05,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:51:05,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1667270802] [2020-11-22 12:51:05,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_246e3578-60e2-4e8b-803e-c336ab1dde8a/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-11-22 12:51:05,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:51:06,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 12:51:06,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:51:06,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:51:06,058 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:51:06,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:51:06,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1667270802] [2020-11-22 12:51:06,075 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:51:06,075 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-22 12:51:06,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905941058] [2020-11-22 12:51:06,076 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 12:51:06,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:51:06,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 12:51:06,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 12:51:06,079 INFO L87 Difference]: Start difference. First operand 184 states and 258 transitions. Second operand 5 states. [2020-11-22 12:51:06,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:51:06,261 INFO L93 Difference]: Finished difference Result 534 states and 740 transitions. [2020-11-22 12:51:06,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 12:51:06,262 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-11-22 12:51:06,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:51:06,264 INFO L225 Difference]: With dead ends: 534 [2020-11-22 12:51:06,264 INFO L226 Difference]: Without dead ends: 356 [2020-11-22 12:51:06,265 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 12:51:06,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2020-11-22 12:51:06,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 202. [2020-11-22 12:51:06,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-11-22 12:51:06,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 276 transitions. [2020-11-22 12:51:06,300 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 276 transitions. Word has length 32 [2020-11-22 12:51:06,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:51:06,304 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 276 transitions. [2020-11-22 12:51:06,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 12:51:06,305 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 276 transitions. [2020-11-22 12:51:06,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-22 12:51:06,310 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:51:06,310 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 12:51:06,535 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-11-22 12:51:06,536 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:51:06,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:51:06,536 INFO L82 PathProgramCache]: Analyzing trace with hash -1403290119, now seen corresponding path program 1 times [2020-11-22 12:51:06,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:51:06,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1395927418] [2020-11-22 12:51:06,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_246e3578-60e2-4e8b-803e-c336ab1dde8a/bin/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-11-22 12:51:06,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:51:06,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-22 12:51:06,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:51:06,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:51:06,804 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:51:06,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:51:06,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1395927418] [2020-11-22 12:51:06,828 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:51:06,828 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-22 12:51:06,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694510845] [2020-11-22 12:51:06,829 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-22 12:51:06,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:51:06,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-22 12:51:06,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-22 12:51:06,830 INFO L87 Difference]: Start difference. First operand 202 states and 276 transitions. Second operand 6 states. [2020-11-22 12:51:06,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:51:06,986 INFO L93 Difference]: Finished difference Result 584 states and 790 transitions. [2020-11-22 12:51:06,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 12:51:06,987 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-11-22 12:51:06,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:51:06,990 INFO L225 Difference]: With dead ends: 584 [2020-11-22 12:51:06,990 INFO L226 Difference]: Without dead ends: 388 [2020-11-22 12:51:06,991 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 12:51:06,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2020-11-22 12:51:07,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 214. [2020-11-22 12:51:07,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-11-22 12:51:07,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 288 transitions. [2020-11-22 12:51:07,025 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 288 transitions. Word has length 32 [2020-11-22 12:51:07,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:51:07,025 INFO L481 AbstractCegarLoop]: Abstraction has 214 states and 288 transitions. [2020-11-22 12:51:07,025 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-22 12:51:07,026 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 288 transitions. [2020-11-22 12:51:07,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-22 12:51:07,026 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:51:07,027 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 12:51:07,244 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-11-22 12:51:07,244 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:51:07,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:51:07,244 INFO L82 PathProgramCache]: Analyzing trace with hash -1145124681, now seen corresponding path program 1 times [2020-11-22 12:51:07,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:51:07,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1959838756] [2020-11-22 12:51:07,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_246e3578-60e2-4e8b-803e-c336ab1dde8a/bin/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-11-22 12:51:07,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:51:07,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:51:07,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:51:07,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:51:07,464 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:51:07,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:51:07,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1959838756] [2020-11-22 12:51:07,487 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:51:07,487 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-22 12:51:07,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363739604] [2020-11-22 12:51:07,487 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:51:07,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:51:07,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:51:07,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:51:07,488 INFO L87 Difference]: Start difference. First operand 214 states and 288 transitions. Second operand 4 states. [2020-11-22 12:51:07,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:51:07,628 INFO L93 Difference]: Finished difference Result 678 states and 916 transitions. [2020-11-22 12:51:07,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 12:51:07,629 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2020-11-22 12:51:07,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:51:07,633 INFO L225 Difference]: With dead ends: 678 [2020-11-22 12:51:07,633 INFO L226 Difference]: Without dead ends: 470 [2020-11-22 12:51:07,634 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:51:07,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2020-11-22 12:51:07,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 378. [2020-11-22 12:51:07,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 378 states. [2020-11-22 12:51:07,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 503 transitions. [2020-11-22 12:51:07,701 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 503 transitions. Word has length 32 [2020-11-22 12:51:07,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:51:07,701 INFO L481 AbstractCegarLoop]: Abstraction has 378 states and 503 transitions. [2020-11-22 12:51:07,702 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:51:07,702 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 503 transitions. [2020-11-22 12:51:07,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-22 12:51:07,703 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:51:07,703 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:51:07,917 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-11-22 12:51:07,918 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:51:07,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:51:07,918 INFO L82 PathProgramCache]: Analyzing trace with hash 2078796085, now seen corresponding path program 1 times [2020-11-22 12:51:07,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:51:07,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1405825323] [2020-11-22 12:51:07,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_246e3578-60e2-4e8b-803e-c336ab1dde8a/bin/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2020-11-22 12:51:09,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:51:09,240 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:51:10,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:51:10,913 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:51:11,105 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-22 12:51:11,106 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 12:51:11,319 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-11-22 12:51:11,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:51:11 BoogieIcfgContainer [2020-11-22 12:51:11,521 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 12:51:11,522 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 12:51:11,522 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 12:51:11,523 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 12:51:11,523 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:51:01" (3/4) ... [2020-11-22 12:51:11,526 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 12:51:11,652 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_246e3578-60e2-4e8b-803e-c336ab1dde8a/bin/utaipan/witness.graphml [2020-11-22 12:51:11,652 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 12:51:11,655 INFO L168 Benchmark]: Toolchain (without parser) took 15085.80 ms. Allocated memory was 50.3 MB in the beginning and 111.1 MB in the end (delta: 60.8 MB). Free memory was 25.9 MB in the beginning and 78.4 MB in the end (delta: -52.5 MB). Peak memory consumption was 56.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:51:11,655 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 50.3 MB. Free memory was 32.4 MB in the beginning and 32.3 MB in the end (delta: 52.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:51:11,656 INFO L168 Benchmark]: CACSL2BoogieTranslator took 925.64 ms. Allocated memory was 50.3 MB in the beginning and 73.4 MB in the end (delta: 23.1 MB). Free memory was 25.7 MB in the beginning and 41.0 MB in the end (delta: -15.3 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:51:11,657 INFO L168 Benchmark]: Boogie Procedure Inliner took 118.55 ms. Allocated memory is still 73.4 MB. Free memory was 40.7 MB in the beginning and 54.3 MB in the end (delta: -13.6 MB). Peak memory consumption was 2.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:51:11,657 INFO L168 Benchmark]: Boogie Preprocessor took 120.30 ms. Allocated memory is still 73.4 MB. Free memory was 54.3 MB in the beginning and 51.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:51:11,658 INFO L168 Benchmark]: RCFGBuilder took 3488.17 ms. Allocated memory was 73.4 MB in the beginning and 92.3 MB in the end (delta: 18.9 MB). Free memory was 50.6 MB in the beginning and 60.2 MB in the end (delta: -9.7 MB). Peak memory consumption was 28.8 MB. Max. memory is 16.1 GB. [2020-11-22 12:51:11,659 INFO L168 Benchmark]: TraceAbstraction took 10289.13 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 60.0 MB in the beginning and 36.5 MB in the end (delta: 23.5 MB). Peak memory consumption was 43.4 MB. Max. memory is 16.1 GB. [2020-11-22 12:51:11,659 INFO L168 Benchmark]: Witness Printer took 130.51 ms. Allocated memory is still 111.1 MB. Free memory was 36.5 MB in the beginning and 78.4 MB in the end (delta: -41.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-22 12:51:11,663 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 50.3 MB. Free memory was 32.4 MB in the beginning and 32.3 MB in the end (delta: 52.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 925.64 ms. Allocated memory was 50.3 MB in the beginning and 73.4 MB in the end (delta: 23.1 MB). Free memory was 25.7 MB in the beginning and 41.0 MB in the end (delta: -15.3 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 118.55 ms. Allocated memory is still 73.4 MB. Free memory was 40.7 MB in the beginning and 54.3 MB in the end (delta: -13.6 MB). Peak memory consumption was 2.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 120.30 ms. Allocated memory is still 73.4 MB. Free memory was 54.3 MB in the beginning and 51.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3488.17 ms. Allocated memory was 73.4 MB in the beginning and 92.3 MB in the end (delta: 18.9 MB). Free memory was 50.6 MB in the beginning and 60.2 MB in the end (delta: -9.7 MB). Peak memory consumption was 28.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 10289.13 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 60.0 MB in the beginning and 36.5 MB in the end (delta: 23.5 MB). Peak memory consumption was 43.4 MB. Max. memory is 16.1 GB. * Witness Printer took 130.51 ms. Allocated memory is still 111.1 MB. Free memory was 36.5 MB in the beginning and 78.4 MB in the end (delta: -41.9 MB). Peak memory consumption was 4.2 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: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L492] int pumpRunning = 0; [L493] int systemActive = 1; [L813] int cleanupTimeShifts = 4; [L910] int waterLevel = 1; [L911] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L886] int retValue_acc ; [L887] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L768] int retValue_acc ; [L771] retValue_acc = 1 [L772] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L893] tmp = valid_product() [L895] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L415] int splverifierCounter ; [L416] int tmp ; [L417] int tmp___0 ; [L418] int tmp___1 ; [L419] int tmp___2 ; [L422] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L424] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L426] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L432] tmp = __VERIFIER_nondet_int() [L434] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L928] COND TRUE waterLevel < 2 [L929] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L442] tmp___0 = __VERIFIER_nondet_int() [L444] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L940] COND FALSE !(\read(methaneLevelCritical)) [L943] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L452] tmp___2 = __VERIFIER_nondet_int() [L454] COND TRUE \read(tmp___2) [L734] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L500] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L507] COND TRUE \read(systemActive) [L581] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L584] COND FALSE !(\read(pumpRunning)) [L555] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L558] COND FALSE !(\read(pumpRunning)) [L529] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L532] COND TRUE ! pumpRunning [L678] int retValue_acc ; [L679] int tmp ; [L680] int tmp___0 ; [L990] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L993] COND FALSE !(waterLevel < 2) [L997] retValue_acc = 0 [L998] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L684] tmp = isHighWaterSensorDry() [L686] COND FALSE !(\read(tmp)) [L689] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L691] retValue_acc = tmp___0 [L692] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L534] tmp = isHighWaterLevel() [L536] COND TRUE \read(tmp) [L609] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L779] int tmp ; [L780] int tmp___0 ; [L949] int retValue_acc ; [L952] retValue_acc = methaneLevelCritical [L953] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L784] tmp = isMethaneLevelCritical() [L786] COND TRUE \read(tmp) [L633] int retValue_acc ; [L636] retValue_acc = pumpRunning [L637] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L788] tmp___0 = isPumpRunning() [L790] 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_product56.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, 194 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 10.0s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1206 SDtfs, 1512 SDslu, 1744 SDs, 0 SdLazy, 233 SolverSat, 65 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 450 GetRequests, 419 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=378occurred 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: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 1037 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 260 NumberOfCodeBlocks, 260 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 436 ConstructedInterpolants, 0 QuantifiedInterpolants, 20850 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1819 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...