./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product43.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_697e4314-927d-4933-8f0b-48412569c364/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_697e4314-927d-4933-8f0b-48412569c364/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_697e4314-927d-4933-8f0b-48412569c364/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_697e4314-927d-4933-8f0b-48412569c364/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_697e4314-927d-4933-8f0b-48412569c364/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_697e4314-927d-4933-8f0b-48412569c364/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 512e5cf92a225db6dbd0c8975a0c1a4cbe1a4a48 ............................................................................................................................................ 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_697e4314-927d-4933-8f0b-48412569c364/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_697e4314-927d-4933-8f0b-48412569c364/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_697e4314-927d-4933-8f0b-48412569c364/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_697e4314-927d-4933-8f0b-48412569c364/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_697e4314-927d-4933-8f0b-48412569c364/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_697e4314-927d-4933-8f0b-48412569c364/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 512e5cf92a225db6dbd0c8975a0c1a4cbe1a4a48 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 13:04:03,600 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:04:03,602 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:04:03,667 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:04:03,669 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:04:03,673 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:04:03,675 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:04:03,683 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:04:03,685 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:04:03,688 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:04:03,689 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:04:03,692 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:04:03,693 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:04:03,700 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:04:03,702 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:04:03,704 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:04:03,705 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:04:03,708 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:04:03,710 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:04:03,712 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:04:03,714 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:04:03,717 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:04:03,718 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:04:03,721 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:04:03,725 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:04:03,733 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:04:03,733 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:04:03,735 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:04:03,736 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:04:03,738 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:04:03,740 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:04:03,741 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:04:03,743 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:04:03,744 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:04:03,748 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:04:03,749 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:04:03,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:04:03,751 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:04:03,752 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:04:03,753 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:04:03,754 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:04:03,756 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_697e4314-927d-4933-8f0b-48412569c364/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:04:03,785 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:04:03,785 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:04:03,786 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:04:03,787 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:04:03,787 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:04:03,787 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:04:03,787 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:04:03,788 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:04:03,789 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:04:03,789 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:04:03,789 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:04:03,789 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:04:03,790 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:04:03,790 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:04:03,790 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:04:03,791 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:04:03,791 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:04:03,791 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:04:03,791 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:04:03,791 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:04:03,792 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:04:03,792 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:04:03,792 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:04:03,792 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:04:03,793 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:04:03,793 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:04:03,793 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:04:03,793 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:04:03,793 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:04:03,794 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:04:03,794 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:04:03,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:04:03,794 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:04:03,795 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:04:03,795 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:04:03,795 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:04:03,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:04:03,795 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:04:03,796 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:04:03,796 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:04:03,796 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_697e4314-927d-4933-8f0b-48412569c364/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_697e4314-927d-4933-8f0b-48412569c364/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 512e5cf92a225db6dbd0c8975a0c1a4cbe1a4a48 [2020-11-22 13:04:04,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:04:04,088 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:04:04,093 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:04:04,094 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:04:04,095 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:04:04,096 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_697e4314-927d-4933-8f0b-48412569c364/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c [2020-11-22 13:04:04,186 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_697e4314-927d-4933-8f0b-48412569c364/bin/utaipan/data/31c584d2b/3e10a4da71e44323bf6489a66cd4ca27/FLAG000d4aa0a [2020-11-22 13:04:04,720 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:04:04,721 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_697e4314-927d-4933-8f0b-48412569c364/sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c [2020-11-22 13:04:04,735 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_697e4314-927d-4933-8f0b-48412569c364/bin/utaipan/data/31c584d2b/3e10a4da71e44323bf6489a66cd4ca27/FLAG000d4aa0a [2020-11-22 13:04:05,010 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_697e4314-927d-4933-8f0b-48412569c364/bin/utaipan/data/31c584d2b/3e10a4da71e44323bf6489a66cd4ca27 [2020-11-22 13:04:05,013 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:04:05,015 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:04:05,021 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:04:05,022 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:04:05,026 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:04:05,028 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:04:05" (1/1) ... [2020-11-22 13:04:05,032 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c79a66e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:05, skipping insertion in model container [2020-11-22 13:04:05,032 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:04:05" (1/1) ... [2020-11-22 13:04:05,040 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:04:05,117 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:04:05,445 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:04:05,464 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2020-11-22 13:04:05,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6f1834d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:05, skipping insertion in model container [2020-11-22 13:04:05,465 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:04:05,466 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-22 13:04:05,469 INFO L168 Benchmark]: Toolchain (without parser) took 451.76 ms. Allocated memory is still 100.7 MB. Free memory was 71.7 MB in the beginning and 75.5 MB in the end (delta: -3.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:05,471 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 83.9 MB. Free memory was 40.7 MB in the beginning and 40.7 MB in the end (delta: 42.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:04:05,473 INFO L168 Benchmark]: CACSL2BoogieTranslator took 444.67 ms. Allocated memory is still 100.7 MB. Free memory was 71.1 MB in the beginning and 75.5 MB in the end (delta: -4.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:05,475 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 83.9 MB. Free memory was 40.7 MB in the beginning and 40.7 MB in the end (delta: 42.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 444.67 ms. Allocated memory is still 100.7 MB. Free memory was 71.1 MB in the beginning and 75.5 MB in the end (delta: -4.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 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 13:04:07,615 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:04:07,617 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:04:07,657 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:04:07,658 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:04:07,663 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:04:07,666 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:04:07,670 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:04:07,673 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:04:07,679 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:04:07,680 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:04:07,684 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:04:07,698 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:04:07,703 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:04:07,704 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:04:07,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:04:07,708 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:04:07,711 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:04:07,715 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:04:07,722 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:04:07,724 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:04:07,726 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:04:07,734 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:04:07,736 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:04:07,742 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:04:07,746 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:04:07,746 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:04:07,747 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:04:07,748 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:04:07,749 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:04:07,750 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:04:07,751 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:04:07,752 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:04:07,753 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:04:07,754 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:04:07,754 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:04:07,755 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:04:07,755 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:04:07,756 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:04:07,757 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:04:07,757 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:04:07,758 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_697e4314-927d-4933-8f0b-48412569c364/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 13:04:07,798 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:04:07,798 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:04:07,799 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:04:07,799 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:04:07,799 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:04:07,800 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:04:07,802 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:04:07,802 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:04:07,803 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:04:07,804 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:04:07,805 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:04:07,805 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:04:07,805 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:04:07,806 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:04:07,806 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:04:07,806 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:04:07,806 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:04:07,806 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 13:04:07,807 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 13:04:07,807 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:04:07,807 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:04:07,807 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:04:07,807 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:04:07,808 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:04:07,808 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 13:04:07,808 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:04:07,808 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:04:07,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:04:07,809 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:04:07,809 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:04:07,809 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:04:07,809 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 13:04:07,810 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 13:04:07,810 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:04:07,810 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:04:07,810 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:04:07,810 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_697e4314-927d-4933-8f0b-48412569c364/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_697e4314-927d-4933-8f0b-48412569c364/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 512e5cf92a225db6dbd0c8975a0c1a4cbe1a4a48 [2020-11-22 13:04:08,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:04:08,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:04:08,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:04:08,262 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:04:08,264 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:04:08,265 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_697e4314-927d-4933-8f0b-48412569c364/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c [2020-11-22 13:04:08,340 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_697e4314-927d-4933-8f0b-48412569c364/bin/utaipan/data/b07ef27f8/37771dfccdd640fca2343469c615ba44/FLAG6584140d5 [2020-11-22 13:04:08,936 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:04:08,937 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_697e4314-927d-4933-8f0b-48412569c364/sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c [2020-11-22 13:04:08,960 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_697e4314-927d-4933-8f0b-48412569c364/bin/utaipan/data/b07ef27f8/37771dfccdd640fca2343469c615ba44/FLAG6584140d5 [2020-11-22 13:04:09,235 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_697e4314-927d-4933-8f0b-48412569c364/bin/utaipan/data/b07ef27f8/37771dfccdd640fca2343469c615ba44 [2020-11-22 13:04:09,238 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:04:09,239 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:04:09,240 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:04:09,241 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:04:09,248 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:04:09,249 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:04:09" (1/1) ... [2020-11-22 13:04:09,252 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72f7e84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:09, skipping insertion in model container [2020-11-22 13:04:09,256 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:04:09" (1/1) ... [2020-11-22 13:04:09,264 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:04:09,330 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:04:09,746 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:04:09,758 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-22 13:04:09,770 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:04:09,859 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:04:09,876 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:04:09,983 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:04:10,029 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:04:10,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:10 WrapperNode [2020-11-22 13:04:10,030 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:04:10,031 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:04:10,032 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:04:10,032 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:04:10,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:10" (1/1) ... [2020-11-22 13:04:10,070 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:10" (1/1) ... [2020-11-22 13:04:10,117 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:04:10,118 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:04:10,119 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:04:10,119 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:04:10,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:10" (1/1) ... [2020-11-22 13:04:10,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:10" (1/1) ... [2020-11-22 13:04:10,132 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:10" (1/1) ... [2020-11-22 13:04:10,132 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:10" (1/1) ... [2020-11-22 13:04:10,145 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:10" (1/1) ... [2020-11-22 13:04:10,151 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:10" (1/1) ... [2020-11-22 13:04:10,155 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:10" (1/1) ... [2020-11-22 13:04:10,160 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:04:10,161 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:04:10,161 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:04:10,162 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:04:10,162 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_697e4314-927d-4933-8f0b-48412569c364/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:04:10,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:04:10,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 13:04:10,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:04:10,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:04:12,668 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:04:12,671 INFO L298 CfgBuilder]: Removed 138 assume(true) statements. [2020-11-22 13:04:12,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:04:12 BoogieIcfgContainer [2020-11-22 13:04:12,674 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:04:12,675 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:04:12,675 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:04:12,678 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:04:12,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:04:09" (1/3) ... [2020-11-22 13:04:12,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c274d71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:04:12, skipping insertion in model container [2020-11-22 13:04:12,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:10" (2/3) ... [2020-11-22 13:04:12,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c274d71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:04:12, skipping insertion in model container [2020-11-22 13:04:12,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:04:12" (3/3) ... [2020-11-22 13:04:12,682 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product43.cil.c [2020-11-22 13:04:12,692 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:04:12,697 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-22 13:04:12,708 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-22 13:04:12,730 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:04:12,731 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:04:12,731 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:04:12,731 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:04:12,731 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:04:12,731 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:04:12,731 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:04:12,732 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:04:12,746 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states. [2020-11-22 13:04:12,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-22 13:04:12,752 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:12,753 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:04:12,753 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:12,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:12,763 INFO L82 PathProgramCache]: Analyzing trace with hash -2026563040, now seen corresponding path program 1 times [2020-11-22 13:04:12,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:04:12,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1570428025] [2020-11-22 13:04:12,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_697e4314-927d-4933-8f0b-48412569c364/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-22 13:04:13,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:13,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 13:04:13,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:04:13,058 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 13:04:13,059 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:04:13,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:04:13,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1570428025] [2020-11-22 13:04:13,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:04:13,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 13:04:13,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412736540] [2020-11-22 13:04:13,073 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 13:04:13,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:04:13,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 13:04:13,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:04:13,091 INFO L87 Difference]: Start difference. First operand 101 states. Second operand 2 states. [2020-11-22 13:04:13,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:04:13,150 INFO L93 Difference]: Finished difference Result 192 states and 283 transitions. [2020-11-22 13:04:13,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 13:04:13,153 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2020-11-22 13:04:13,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:04:13,165 INFO L225 Difference]: With dead ends: 192 [2020-11-22 13:04:13,165 INFO L226 Difference]: Without dead ends: 94 [2020-11-22 13:04:13,168 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:04:13,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-11-22 13:04:13,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2020-11-22 13:04:13,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-11-22 13:04:13,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 132 transitions. [2020-11-22 13:04:13,203 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 132 transitions. Word has length 19 [2020-11-22 13:04:13,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:04:13,203 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 132 transitions. [2020-11-22 13:04:13,203 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 13:04:13,203 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 132 transitions. [2020-11-22 13:04:13,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-22 13:04:13,205 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:13,205 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] [2020-11-22 13:04:13,414 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 13:04:13,414 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:13,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:13,415 INFO L82 PathProgramCache]: Analyzing trace with hash 988306110, now seen corresponding path program 1 times [2020-11-22 13:04:13,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:04:13,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [865407893] [2020-11-22 13:04:13,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_697e4314-927d-4933-8f0b-48412569c364/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-22 13:04:13,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:13,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:04:13,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:04:13,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:04:13,640 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:04:13,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:04:13,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [865407893] [2020-11-22 13:04:13,652 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:04:13,652 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 13:04:13,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152179747] [2020-11-22 13:04:13,654 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:04:13,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:04:13,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:04:13,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:04:13,655 INFO L87 Difference]: Start difference. First operand 94 states and 132 transitions. Second operand 4 states. [2020-11-22 13:04:13,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:04:13,681 INFO L93 Difference]: Finished difference Result 94 states and 132 transitions. [2020-11-22 13:04:13,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:04:13,683 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-11-22 13:04:13,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:04:13,685 INFO L225 Difference]: With dead ends: 94 [2020-11-22 13:04:13,685 INFO L226 Difference]: Without dead ends: 43 [2020-11-22 13:04:13,688 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:04:13,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-11-22 13:04:13,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-11-22 13:04:13,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-11-22 13:04:13,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 60 transitions. [2020-11-22 13:04:13,703 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 60 transitions. Word has length 20 [2020-11-22 13:04:13,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:04:13,704 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 60 transitions. [2020-11-22 13:04:13,704 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:04:13,704 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 60 transitions. [2020-11-22 13:04:13,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-22 13:04:13,705 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:13,705 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 13:04:13,905 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 13:04:13,906 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:13,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:13,907 INFO L82 PathProgramCache]: Analyzing trace with hash -322803839, now seen corresponding path program 1 times [2020-11-22 13:04:13,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:04:13,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [694699367] [2020-11-22 13:04:13,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_697e4314-927d-4933-8f0b-48412569c364/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-22 13:04:14,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:14,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:04:14,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:04:14,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:04:14,123 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:04:14,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:04:14,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [694699367] [2020-11-22 13:04:14,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:04:14,145 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-22 13:04:14,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035023774] [2020-11-22 13:04:14,148 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:04:14,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:04:14,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:04:14,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:04:14,149 INFO L87 Difference]: Start difference. First operand 43 states and 60 transitions. Second operand 4 states. [2020-11-22 13:04:14,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:04:14,193 INFO L93 Difference]: Finished difference Result 141 states and 204 transitions. [2020-11-22 13:04:14,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:04:14,193 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-11-22 13:04:14,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:04:14,195 INFO L225 Difference]: With dead ends: 141 [2020-11-22 13:04:14,195 INFO L226 Difference]: Without dead ends: 105 [2020-11-22 13:04:14,196 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:04:14,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-11-22 13:04:14,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 65. [2020-11-22 13:04:14,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-11-22 13:04:14,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 93 transitions. [2020-11-22 13:04:14,207 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 93 transitions. Word has length 26 [2020-11-22 13:04:14,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:04:14,208 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 93 transitions. [2020-11-22 13:04:14,208 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:04:14,208 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 93 transitions. [2020-11-22 13:04:14,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-22 13:04:14,209 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:14,210 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:04:14,423 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 13:04:14,423 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:14,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:14,424 INFO L82 PathProgramCache]: Analyzing trace with hash 1431450619, now seen corresponding path program 1 times [2020-11-22 13:04:14,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:04:14,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [232053940] [2020-11-22 13:04:14,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_697e4314-927d-4933-8f0b-48412569c364/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-22 13:04:14,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:14,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:04:14,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:04:14,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:04:14,643 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:04:14,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:04:14,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [232053940] [2020-11-22 13:04:14,648 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:04:14,648 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 13:04:14,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761930607] [2020-11-22 13:04:14,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:04:14,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:04:14,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:04:14,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:04:14,650 INFO L87 Difference]: Start difference. First operand 65 states and 93 transitions. Second operand 3 states. [2020-11-22 13:04:14,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:04:14,725 INFO L93 Difference]: Finished difference Result 147 states and 213 transitions. [2020-11-22 13:04:14,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:04:14,726 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2020-11-22 13:04:14,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:04:14,727 INFO L225 Difference]: With dead ends: 147 [2020-11-22 13:04:14,727 INFO L226 Difference]: Without dead ends: 89 [2020-11-22 13:04:14,728 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:04:14,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-11-22 13:04:14,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 87. [2020-11-22 13:04:14,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-11-22 13:04:14,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 122 transitions. [2020-11-22 13:04:14,748 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 122 transitions. Word has length 27 [2020-11-22 13:04:14,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:04:14,749 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 122 transitions. [2020-11-22 13:04:14,749 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:04:14,749 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 122 transitions. [2020-11-22 13:04:14,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-22 13:04:14,751 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:14,751 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] [2020-11-22 13:04:14,960 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-22 13:04:14,960 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:14,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:14,961 INFO L82 PathProgramCache]: Analyzing trace with hash -591283254, now seen corresponding path program 1 times [2020-11-22 13:04:14,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:04:14,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1153780534] [2020-11-22 13:04:14,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_697e4314-927d-4933-8f0b-48412569c364/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-11-22 13:04:15,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:15,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 13:04:15,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:04:15,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:04:15,171 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:04:15,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:04:15,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1153780534] [2020-11-22 13:04:15,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:04:15,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-11-22 13:04:15,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497448345] [2020-11-22 13:04:15,188 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:04:15,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:04:15,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:04:15,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:04:15,189 INFO L87 Difference]: Start difference. First operand 87 states and 122 transitions. Second operand 5 states. [2020-11-22 13:04:15,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:04:15,381 INFO L93 Difference]: Finished difference Result 288 states and 406 transitions. [2020-11-22 13:04:15,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-22 13:04:15,381 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-11-22 13:04:15,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:04:15,383 INFO L225 Difference]: With dead ends: 288 [2020-11-22 13:04:15,383 INFO L226 Difference]: Without dead ends: 208 [2020-11-22 13:04:15,384 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-22 13:04:15,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2020-11-22 13:04:15,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 85. [2020-11-22 13:04:15,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-11-22 13:04:15,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 116 transitions. [2020-11-22 13:04:15,412 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 116 transitions. Word has length 29 [2020-11-22 13:04:15,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:04:15,412 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 116 transitions. [2020-11-22 13:04:15,412 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:04:15,413 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 116 transitions. [2020-11-22 13:04:15,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-11-22 13:04:15,414 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:15,414 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:04:15,643 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-22 13:04:15,644 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:15,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:15,644 INFO L82 PathProgramCache]: Analyzing trace with hash 644254591, now seen corresponding path program 1 times [2020-11-22 13:04:15,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:04:15,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1046570362] [2020-11-22 13:04:15,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_697e4314-927d-4933-8f0b-48412569c364/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-11-22 13:04:15,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:15,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 13:04:15,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:04:15,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:04:15,879 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:04:15,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:04:15,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1046570362] [2020-11-22 13:04:15,895 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:04:15,895 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-22 13:04:15,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692190319] [2020-11-22 13:04:15,897 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:04:15,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:04:15,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:04:15,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:04:15,898 INFO L87 Difference]: Start difference. First operand 85 states and 116 transitions. Second operand 5 states. [2020-11-22 13:04:15,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:04:15,970 INFO L93 Difference]: Finished difference Result 251 states and 344 transitions. [2020-11-22 13:04:15,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 13:04:15,972 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 36 [2020-11-22 13:04:15,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:04:15,974 INFO L225 Difference]: With dead ends: 251 [2020-11-22 13:04:15,974 INFO L226 Difference]: Without dead ends: 173 [2020-11-22 13:04:15,976 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:04:15,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2020-11-22 13:04:15,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 88. [2020-11-22 13:04:15,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-11-22 13:04:15,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 119 transitions. [2020-11-22 13:04:15,999 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 119 transitions. Word has length 36 [2020-11-22 13:04:16,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:04:16,001 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 119 transitions. [2020-11-22 13:04:16,001 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:04:16,001 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 119 transitions. [2020-11-22 13:04:16,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-11-22 13:04:16,006 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:16,007 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:04:16,223 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-22 13:04:16,224 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:16,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:16,224 INFO L82 PathProgramCache]: Analyzing trace with hash -366862659, now seen corresponding path program 1 times [2020-11-22 13:04:16,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:04:16,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [767289187] [2020-11-22 13:04:16,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_697e4314-927d-4933-8f0b-48412569c364/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-11-22 13:04:16,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:16,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-22 13:04:16,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:04:16,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:04:16,435 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:04:16,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:04:16,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [767289187] [2020-11-22 13:04:16,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:04:16,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-22 13:04:16,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499600862] [2020-11-22 13:04:16,452 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-22 13:04:16,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:04:16,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-22 13:04:16,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:04:16,453 INFO L87 Difference]: Start difference. First operand 88 states and 119 transitions. Second operand 6 states. [2020-11-22 13:04:16,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:04:16,540 INFO L93 Difference]: Finished difference Result 260 states and 353 transitions. [2020-11-22 13:04:16,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:04:16,540 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2020-11-22 13:04:16,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:04:16,542 INFO L225 Difference]: With dead ends: 260 [2020-11-22 13:04:16,542 INFO L226 Difference]: Without dead ends: 179 [2020-11-22 13:04:16,544 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:04:16,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2020-11-22 13:04:16,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 90. [2020-11-22 13:04:16,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-11-22 13:04:16,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 121 transitions. [2020-11-22 13:04:16,574 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 121 transitions. Word has length 36 [2020-11-22 13:04:16,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:04:16,577 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 121 transitions. [2020-11-22 13:04:16,577 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-22 13:04:16,577 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 121 transitions. [2020-11-22 13:04:16,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-11-22 13:04:16,581 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:16,581 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:04:16,788 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-11-22 13:04:16,788 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:16,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:16,789 INFO L82 PathProgramCache]: Analyzing trace with hash -1387931013, now seen corresponding path program 1 times [2020-11-22 13:04:16,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:04:16,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1755116459] [2020-11-22 13:04:16,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_697e4314-927d-4933-8f0b-48412569c364/bin/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-11-22 13:04:16,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:16,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:04:16,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:04:16,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:04:16,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:04:16,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:04:16,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1755116459] [2020-11-22 13:04:16,985 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:04:16,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-22 13:04:16,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182490574] [2020-11-22 13:04:16,986 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:04:16,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:04:16,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:04:16,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:04:16,987 INFO L87 Difference]: Start difference. First operand 90 states and 121 transitions. Second operand 4 states. [2020-11-22 13:04:17,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:04:17,061 INFO L93 Difference]: Finished difference Result 295 states and 401 transitions. [2020-11-22 13:04:17,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:04:17,061 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2020-11-22 13:04:17,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:04:17,063 INFO L225 Difference]: With dead ends: 295 [2020-11-22 13:04:17,063 INFO L226 Difference]: Without dead ends: 212 [2020-11-22 13:04:17,064 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:04:17,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-11-22 13:04:17,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 161. [2020-11-22 13:04:17,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2020-11-22 13:04:17,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 217 transitions. [2020-11-22 13:04:17,089 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 217 transitions. Word has length 36 [2020-11-22 13:04:17,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:04:17,090 INFO L481 AbstractCegarLoop]: Abstraction has 161 states and 217 transitions. [2020-11-22 13:04:17,090 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:04:17,090 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 217 transitions. [2020-11-22 13:04:17,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-11-22 13:04:17,091 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:17,091 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:04:17,307 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-11-22 13:04:17,308 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:17,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:17,308 INFO L82 PathProgramCache]: Analyzing trace with hash 1432557499, now seen corresponding path program 1 times [2020-11-22 13:04:17,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:04:17,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [755842165] [2020-11-22 13:04:17,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_697e4314-927d-4933-8f0b-48412569c364/bin/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-11-22 13:04:17,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:17,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-22 13:04:17,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:04:17,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:04:17,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:04:17,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:04:17,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [755842165] [2020-11-22 13:04:17,572 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:04:17,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 6 [2020-11-22 13:04:17,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227456557] [2020-11-22 13:04:17,574 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-22 13:04:17,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:04:17,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-22 13:04:17,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:04:17,576 INFO L87 Difference]: Start difference. First operand 161 states and 217 transitions. Second operand 7 states. [2020-11-22 13:04:18,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:04:18,020 INFO L93 Difference]: Finished difference Result 800 states and 1093 transitions. [2020-11-22 13:04:18,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-22 13:04:18,020 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 37 [2020-11-22 13:04:18,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:04:18,024 INFO L225 Difference]: With dead ends: 800 [2020-11-22 13:04:18,024 INFO L226 Difference]: Without dead ends: 646 [2020-11-22 13:04:18,025 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 67 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-11-22 13:04:18,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2020-11-22 13:04:18,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 304. [2020-11-22 13:04:18,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2020-11-22 13:04:18,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 405 transitions. [2020-11-22 13:04:18,075 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 405 transitions. Word has length 37 [2020-11-22 13:04:18,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:04:18,077 INFO L481 AbstractCegarLoop]: Abstraction has 304 states and 405 transitions. [2020-11-22 13:04:18,077 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-22 13:04:18,078 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 405 transitions. [2020-11-22 13:04:18,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-22 13:04:18,079 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:18,079 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:04:18,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-11-22 13:04:18,299 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:18,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:18,299 INFO L82 PathProgramCache]: Analyzing trace with hash 548694946, now seen corresponding path program 1 times [2020-11-22 13:04:18,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:04:18,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1371948582] [2020-11-22 13:04:18,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_697e4314-927d-4933-8f0b-48412569c364/bin/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2020-11-22 13:04:18,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:18,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 13:04:18,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:04:18,537 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:04:18,537 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:04:18,568 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:04:18,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1371948582] [2020-11-22 13:04:18,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [652975457] [2020-11-22 13:04:18,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_697e4314-927d-4933-8f0b-48412569c364/bin/utaipan/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-11-22 13:04:18,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:18,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-22 13:04:18,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:04:18,759 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:04:18,759 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:04:18,781 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:04:18,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [339208600] [2020-11-22 13:04:18,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_697e4314-927d-4933-8f0b-48412569c364/bin/utaipan/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-22 13:04:18,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:18,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 13:04:18,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:04:18,941 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:04:18,941 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:04:18,961 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:04:18,961 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2020-11-22 13:04:18,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 8 [2020-11-22 13:04:18,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550272205] [2020-11-22 13:04:18,962 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-22 13:04:18,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:04:18,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-22 13:04:18,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-22 13:04:18,963 INFO L87 Difference]: Start difference. First operand 304 states and 405 transitions. Second operand 8 states. [2020-11-22 13:04:19,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:04:19,398 INFO L93 Difference]: Finished difference Result 674 states and 905 transitions. [2020-11-22 13:04:19,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-22 13:04:19,399 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 54 [2020-11-22 13:04:19,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:04:19,401 INFO L225 Difference]: With dead ends: 674 [2020-11-22 13:04:19,401 INFO L226 Difference]: Without dead ends: 377 [2020-11-22 13:04:19,402 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 315 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2020-11-22 13:04:19,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2020-11-22 13:04:19,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 310. [2020-11-22 13:04:19,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 310 states. [2020-11-22 13:04:19,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 400 transitions. [2020-11-22 13:04:19,458 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 400 transitions. Word has length 54 [2020-11-22 13:04:19,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:04:19,458 INFO L481 AbstractCegarLoop]: Abstraction has 310 states and 400 transitions. [2020-11-22 13:04:19,459 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-22 13:04:19,463 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 400 transitions. [2020-11-22 13:04:19,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-11-22 13:04:19,465 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:19,465 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:04:20,092 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 mathsat -unsat_core_generation=3 [2020-11-22 13:04:20,092 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:20,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:20,093 INFO L82 PathProgramCache]: Analyzing trace with hash -1148972570, now seen corresponding path program 1 times [2020-11-22 13:04:20,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:04:20,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1179711518] [2020-11-22 13:04:20,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_697e4314-927d-4933-8f0b-48412569c364/bin/utaipan/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2020-11-22 13:04:20,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:20,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-22 13:04:20,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:04:20,382 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 74 proven. 9 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-11-22 13:04:20,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:04:20,464 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 74 proven. 9 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-11-22 13:04:20,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1179711518] [2020-11-22 13:04:20,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [172540259] [2020-11-22 13:04:20,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_697e4314-927d-4933-8f0b-48412569c364/bin/utaipan/cvc4 Starting monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-11-22 13:04:20,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:20,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:04:20,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:04:20,689 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-11-22 13:04:20,689 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:04:20,699 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-11-22 13:04:20,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2020-11-22 13:04:20,700 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5] total 11 [2020-11-22 13:04:20,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609344014] [2020-11-22 13:04:20,701 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:04:20,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:04:20,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:04:20,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-11-22 13:04:20,702 INFO L87 Difference]: Start difference. First operand 310 states and 400 transitions. Second operand 3 states. [2020-11-22 13:04:20,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:04:20,834 INFO L93 Difference]: Finished difference Result 551 states and 712 transitions. [2020-11-22 13:04:20,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:04:20,834 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 99 [2020-11-22 13:04:20,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:04:20,836 INFO L225 Difference]: With dead ends: 551 [2020-11-22 13:04:20,836 INFO L226 Difference]: Without dead ends: 0 [2020-11-22 13:04:20,837 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 382 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-11-22 13:04:20,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-22 13:04:20,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-22 13:04:20,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-22 13:04:20,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-22 13:04:20,838 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 99 [2020-11-22 13:04:20,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:04:20,838 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-22 13:04:20,838 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:04:20,838 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-22 13:04:20,838 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-22 13:04:21,256 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 mathsat -unsat_core_generation=3,15 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-11-22 13:04:21,257 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-22 13:04:21,430 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2020-11-22 13:04:21,567 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 106 [2020-11-22 13:04:21,765 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-11-22 13:04:21,867 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 110 [2020-11-22 13:04:22,026 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 111 [2020-11-22 13:04:22,284 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 100 [2020-11-22 13:04:22,430 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 73 [2020-11-22 13:04:22,709 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 24 [2020-11-22 13:04:23,287 WARN L193 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 30 [2020-11-22 13:04:23,676 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 32 [2020-11-22 13:04:24,164 WARN L193 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 27 [2020-11-22 13:04:24,789 WARN L193 SmtUtils]: Spent 623.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 32 [2020-11-22 13:04:25,205 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 25 [2020-11-22 13:04:25,505 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 28 [2020-11-22 13:04:26,127 WARN L193 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 27 [2020-11-22 13:04:26,646 WARN L193 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 28 [2020-11-22 13:04:26,829 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 26 [2020-11-22 13:04:27,132 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 6 [2020-11-22 13:04:27,535 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 30 [2020-11-22 13:04:27,948 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 30 [2020-11-22 13:04:27,959 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-22 13:04:27,960 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-22 13:04:27,960 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-22 13:04:27,960 INFO L274 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-11-22 13:04:27,960 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-22 13:04:27,960 INFO L274 CegarLoopResult]: For program point L863(lines 863 869) no Hoare annotation was computed. [2020-11-22 13:04:27,960 INFO L274 CegarLoopResult]: For program point L863-1(lines 863 869) no Hoare annotation was computed. [2020-11-22 13:04:27,960 INFO L274 CegarLoopResult]: For program point L863-2(lines 863 869) no Hoare annotation was computed. [2020-11-22 13:04:27,960 INFO L274 CegarLoopResult]: For program point L500(lines 500 507) no Hoare annotation was computed. [2020-11-22 13:04:27,960 INFO L277 CegarLoopResult]: At program point L500-1(lines 500 507) the Hoare annotation is: true [2020-11-22 13:04:27,960 INFO L270 CegarLoopResult]: At program point L946(lines 1 966) the Hoare annotation is: (and (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) [2020-11-22 13:04:27,961 INFO L274 CegarLoopResult]: For program point L963(line 963) no Hoare annotation was computed. [2020-11-22 13:04:27,961 INFO L274 CegarLoopResult]: For program point L963-1(line 963) no Hoare annotation was computed. [2020-11-22 13:04:27,961 INFO L274 CegarLoopResult]: For program point L963-2(line 963) no Hoare annotation was computed. [2020-11-22 13:04:27,961 INFO L274 CegarLoopResult]: For program point L798(lines 798 802) no Hoare annotation was computed. [2020-11-22 13:04:27,961 INFO L274 CegarLoopResult]: For program point L633(lines 633 650) no Hoare annotation was computed. [2020-11-22 13:04:27,961 INFO L274 CegarLoopResult]: For program point L633-1(lines 633 650) no Hoare annotation was computed. [2020-11-22 13:04:27,961 INFO L274 CegarLoopResult]: For program point L633-2(lines 633 650) no Hoare annotation was computed. [2020-11-22 13:04:27,961 INFO L270 CegarLoopResult]: At program point L881(lines 876 883) the Hoare annotation is: (and (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) [2020-11-22 13:04:27,961 INFO L270 CegarLoopResult]: At program point L601(lines 597 619) the Hoare annotation is: (let ((.cse3 (= ~systemActive~0 (_ bv0 32)))) (let ((.cse1 (not .cse3)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) .cse2) (and (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) .cse0 .cse1 (= (_ bv1 32) ~pumpRunning~0) (= (_ bv1 32) ~switchedOnBeforeTS~0)) (and .cse0 .cse1 .cse2 (= (_ bv0 32) (bvadd ~waterLevel~0 (_ bv4294967294 32)))) (and .cse0 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|) .cse2 .cse3)))) [2020-11-22 13:04:27,961 INFO L270 CegarLoopResult]: At program point L601-1(lines 597 619) the Hoare annotation is: false [2020-11-22 13:04:27,961 INFO L274 CegarLoopResult]: For program point L535(lines 535 541) no Hoare annotation was computed. [2020-11-22 13:04:27,962 INFO L270 CegarLoopResult]: At program point L601-2(lines 597 619) the Hoare annotation is: false [2020-11-22 13:04:27,962 INFO L270 CegarLoopResult]: At program point L535-1(lines 535 541) the Hoare annotation is: (let ((.cse3 (= ~systemActive~0 (_ bv0 32)))) (let ((.cse1 (not .cse3)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) .cse2) (and .cse0 .cse1 .cse2 (= (_ bv0 32) (bvadd ~waterLevel~0 (_ bv4294967294 32)))) (and .cse0 .cse1 (= (_ bv1 32) ~pumpRunning~0)) (and .cse0 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|) .cse2 .cse3)))) [2020-11-22 13:04:27,962 INFO L270 CegarLoopResult]: At program point L420-2(lines 420 434) the Hoare annotation is: false [2020-11-22 13:04:27,962 INFO L274 CegarLoopResult]: For program point L767(lines 767 773) no Hoare annotation was computed. [2020-11-22 13:04:27,962 INFO L270 CegarLoopResult]: At program point L767-1(lines 767 773) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0)) [2020-11-22 13:04:27,962 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-11-22 13:04:27,962 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-22 13:04:27,962 INFO L270 CegarLoopResult]: At program point L471(lines 467 473) the Hoare annotation is: (and (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) [2020-11-22 13:04:27,962 INFO L270 CegarLoopResult]: At program point L868(lines 859 872) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (not (= ~systemActive~0 (_ bv0 32)))) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 (= (_ bv0 32) (bvadd ~waterLevel~0 (_ bv4294967294 32)))) (and .cse0 .cse1 (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) .cse2))) [2020-11-22 13:04:27,962 INFO L270 CegarLoopResult]: At program point L868-1(lines 859 872) the Hoare annotation is: false [2020-11-22 13:04:27,962 INFO L270 CegarLoopResult]: At program point L868-2(lines 859 872) the Hoare annotation is: false [2020-11-22 13:04:27,962 INFO L274 CegarLoopResult]: For program point L670(lines 670 676) no Hoare annotation was computed. [2020-11-22 13:04:27,963 INFO L274 CegarLoopResult]: For program point L637(lines 637 645) no Hoare annotation was computed. [2020-11-22 13:04:27,963 INFO L274 CegarLoopResult]: For program point L637-1(lines 637 645) no Hoare annotation was computed. [2020-11-22 13:04:27,963 INFO L274 CegarLoopResult]: For program point L670-2(lines 670 676) no Hoare annotation was computed. [2020-11-22 13:04:27,963 INFO L274 CegarLoopResult]: For program point L637-2(lines 637 645) no Hoare annotation was computed. [2020-11-22 13:04:27,963 INFO L274 CegarLoopResult]: For program point L670-4(lines 670 676) no Hoare annotation was computed. [2020-11-22 13:04:27,963 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-22 13:04:27,963 INFO L274 CegarLoopResult]: For program point L786(lines 786 790) no Hoare annotation was computed. [2020-11-22 13:04:27,963 INFO L274 CegarLoopResult]: For program point L753(lines 753 757) no Hoare annotation was computed. [2020-11-22 13:04:27,963 INFO L274 CegarLoopResult]: For program point L753-2(lines 753 757) no Hoare annotation was computed. [2020-11-22 13:04:27,963 INFO L274 CegarLoopResult]: For program point L786-3(lines 786 790) no Hoare annotation was computed. [2020-11-22 13:04:27,963 INFO L274 CegarLoopResult]: For program point L753-3(lines 753 757) no Hoare annotation was computed. [2020-11-22 13:04:27,963 INFO L274 CegarLoopResult]: For program point L753-5(lines 753 757) no Hoare annotation was computed. [2020-11-22 13:04:27,963 INFO L274 CegarLoopResult]: For program point L786-6(lines 786 790) no Hoare annotation was computed. [2020-11-22 13:04:27,964 INFO L274 CegarLoopResult]: For program point L555(lines 555 568) no Hoare annotation was computed. [2020-11-22 13:04:27,964 INFO L274 CegarLoopResult]: For program point L753-6(lines 753 757) no Hoare annotation was computed. [2020-11-22 13:04:27,964 INFO L274 CegarLoopResult]: For program point L753-8(lines 753 757) no Hoare annotation was computed. [2020-11-22 13:04:27,964 INFO L274 CegarLoopResult]: For program point L902(lines 902 919) no Hoare annotation was computed. [2020-11-22 13:04:27,964 INFO L270 CegarLoopResult]: At program point L902-1(lines 1 966) the Hoare annotation is: (let ((.cse3 (= ~systemActive~0 (_ bv0 32)))) (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (not .cse3)) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) .cse2) (and .cse0 .cse1 (= (_ bv1 32) ~pumpRunning~0)) (and .cse0 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|) .cse2 .cse3) (and .cse0 .cse1 (= ~waterLevel~0 (_ bv2 32)) (= (_ bv2 32) ULTIMATE.start___utac_acc__Specification5_spec__3_~tmp~8) .cse2 (= (_ bv2 32) |ULTIMATE.start_getWaterLevel_#res|))))) [2020-11-22 13:04:27,964 INFO L274 CegarLoopResult]: For program point L902-2(lines 902 919) no Hoare annotation was computed. [2020-11-22 13:04:27,964 INFO L270 CegarLoopResult]: At program point L902-3(lines 1 966) the Hoare annotation is: false [2020-11-22 13:04:27,964 INFO L274 CegarLoopResult]: For program point L902-4(lines 902 919) no Hoare annotation was computed. [2020-11-22 13:04:27,964 INFO L270 CegarLoopResult]: At program point L902-5(lines 1 966) the Hoare annotation is: false [2020-11-22 13:04:27,964 INFO L270 CegarLoopResult]: At program point L704(lines 699 707) the Hoare annotation is: (let ((.cse4 (= ~systemActive~0 (_ bv0 32)))) (let ((.cse1 (not .cse4)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|)) (.cse3 (= (_ bv0 32) ~pumpRunning~0))) (or (and (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) .cse0 .cse1 (= (_ bv1 32) ~pumpRunning~0)) (and .cse0 .cse1 .cse2 .cse3 (= (_ bv0 32) (bvadd ~waterLevel~0 (_ bv4294967294 32)))) (and .cse0 .cse1 .cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) .cse3) (and .cse0 .cse2 .cse3 .cse4)))) [2020-11-22 13:04:27,964 INFO L270 CegarLoopResult]: At program point L704-1(lines 699 707) the Hoare annotation is: (let ((.cse4 (= ~systemActive~0 (_ bv0 32)))) (let ((.cse1 (not .cse4)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|)) (.cse3 (= (_ bv0 32) ~pumpRunning~0))) (or (and (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) .cse0 .cse1 (= (_ bv1 32) ~pumpRunning~0) (= (_ bv1 32) ~switchedOnBeforeTS~0)) (and .cse0 .cse1 .cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) .cse3) (and .cse0 .cse2 .cse3 .cse4)))) [2020-11-22 13:04:27,965 INFO L270 CegarLoopResult]: At program point L704-2(lines 699 707) the Hoare annotation is: false [2020-11-22 13:04:27,965 INFO L270 CegarLoopResult]: At program point L704-3(lines 699 707) the Hoare annotation is: false [2020-11-22 13:04:27,965 INFO L270 CegarLoopResult]: At program point L704-4(lines 699 707) the Hoare annotation is: false [2020-11-22 13:04:27,965 INFO L270 CegarLoopResult]: At program point L704-5(lines 699 707) the Hoare annotation is: false [2020-11-22 13:04:27,965 INFO L274 CegarLoopResult]: For program point L424(lines 424 428) no Hoare annotation was computed. [2020-11-22 13:04:27,965 INFO L274 CegarLoopResult]: For program point L424-1(lines 424 428) no Hoare annotation was computed. [2020-11-22 13:04:27,965 INFO L270 CegarLoopResult]: At program point L573(lines 524 574) the Hoare annotation is: false [2020-11-22 13:04:27,965 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-22 13:04:27,965 INFO L270 CegarLoopResult]: At program point L954(lines 949 957) the Hoare annotation is: (and (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) [2020-11-22 13:04:27,965 INFO L270 CegarLoopResult]: At program point L855(lines 850 858) the Hoare annotation is: (let ((.cse6 (= ~systemActive~0 (_ bv0 32)))) (let ((.cse2 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (not .cse6)) (.cse4 (= ~waterLevel~0 (_ bv2 32))) (.cse3 (= (_ bv1 32) ~pumpRunning~0)) (.cse5 (= (_ bv2 32) |ULTIMATE.start_getWaterLevel_#res|))) (or (and .cse0 .cse1 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) .cse2) (and (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) .cse0 .cse1 .cse3 (= (_ bv1 32) ~switchedOnBeforeTS~0)) (and .cse0 .cse1 .cse4 .cse2 .cse5) (and .cse0 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|) .cse2 .cse6) (and .cse0 .cse1 .cse4 .cse3 .cse5)))) [2020-11-22 13:04:27,965 INFO L270 CegarLoopResult]: At program point L855-1(lines 850 858) the Hoare annotation is: false [2020-11-22 13:04:27,966 INFO L270 CegarLoopResult]: At program point L855-2(lines 850 858) the Hoare annotation is: false [2020-11-22 13:04:27,966 INFO L270 CegarLoopResult]: At program point L608(lines 608 614) the Hoare annotation is: (let ((.cse5 (= ~systemActive~0 (_ bv0 32)))) (let ((.cse1 (not .cse5)) (.cse3 (= (_ bv1 32) ~pumpRunning~0)) (.cse4 (= (_ bv0 32) (bvadd ~waterLevel~0 (_ bv4294967294 32)))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) .cse2) (and (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) .cse0 .cse1 .cse3 (= (_ bv1 32) ~switchedOnBeforeTS~0)) (and .cse0 .cse1 .cse2 .cse4) (and .cse0 .cse1 .cse3 .cse4) (and .cse0 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|) .cse2 .cse5)))) [2020-11-22 13:04:27,966 INFO L270 CegarLoopResult]: At program point L608-1(lines 608 614) the Hoare annotation is: false [2020-11-22 13:04:27,966 INFO L270 CegarLoopResult]: At program point L608-2(lines 608 614) the Hoare annotation is: false [2020-11-22 13:04:27,966 INFO L277 CegarLoopResult]: At program point L509(lines 490 512) the Hoare annotation is: true [2020-11-22 13:04:27,966 INFO L270 CegarLoopResult]: At program point L823(lines 818 826) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)) (not (= ~systemActive~0 (_ bv0 32))) (= (_ bv0 32) ~pumpRunning~0) (= (_ bv0 32) (bvadd ~waterLevel~0 (_ bv4294967294 32)))) [2020-11-22 13:04:27,966 INFO L270 CegarLoopResult]: At program point L823-1(lines 818 826) the Hoare annotation is: false [2020-11-22 13:04:27,966 INFO L270 CegarLoopResult]: At program point L823-2(lines 818 826) the Hoare annotation is: false [2020-11-22 13:04:27,966 INFO L274 CegarLoopResult]: For program point L526(lines 525 572) no Hoare annotation was computed. [2020-11-22 13:04:27,966 INFO L274 CegarLoopResult]: For program point L906(lines 906 916) no Hoare annotation was computed. [2020-11-22 13:04:27,966 INFO L274 CegarLoopResult]: For program point L906-2(lines 906 916) no Hoare annotation was computed. [2020-11-22 13:04:27,966 INFO L274 CegarLoopResult]: For program point L906-4(lines 906 916) no Hoare annotation was computed. [2020-11-22 13:04:27,967 INFO L274 CegarLoopResult]: For program point L527(lines 527 531) no Hoare annotation was computed. [2020-11-22 13:04:27,967 INFO L274 CegarLoopResult]: For program point L907(lines 907 913) no Hoare annotation was computed. [2020-11-22 13:04:27,967 INFO L274 CegarLoopResult]: For program point L907-2(lines 907 913) no Hoare annotation was computed. [2020-11-22 13:04:27,967 INFO L274 CegarLoopResult]: For program point L907-4(lines 907 913) no Hoare annotation was computed. [2020-11-22 13:04:27,967 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-22 13:04:27,967 INFO L270 CegarLoopResult]: At program point L891(lines 601 607) the Hoare annotation is: (let ((.cse4 (= ~systemActive~0 (_ bv0 32)))) (let ((.cse1 (not .cse4)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|)) (.cse3 (= (_ bv0 32) ~pumpRunning~0))) (or (and (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) .cse0 .cse1 (= (_ bv1 32) ~pumpRunning~0) (= (_ bv1 32) ~switchedOnBeforeTS~0)) (and .cse0 .cse1 .cse2 .cse3 (= (_ bv0 32) (bvadd ~waterLevel~0 (_ bv4294967294 32)))) (and .cse0 .cse1 .cse2 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) .cse3) (and .cse0 .cse2 .cse3 .cse4)))) [2020-11-22 13:04:27,967 INFO L270 CegarLoopResult]: At program point L891-1(lines 601 607) the Hoare annotation is: false [2020-11-22 13:04:27,967 INFO L270 CegarLoopResult]: At program point L891-2(lines 601 607) the Hoare annotation is: false [2020-11-22 13:04:27,967 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-22 13:04:27,967 INFO L270 CegarLoopResult]: At program point L759(lines 744 762) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (not (= ~systemActive~0 (_ bv0 32)))) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 (= (_ bv0 32) (bvadd ~waterLevel~0 (_ bv4294967294 32)))) (and .cse0 .cse1 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv0 32)) (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) .cse2 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32)) (not (= ULTIMATE.start_isHighWaterLevel_~tmp~7 (_ bv0 32)))))) [2020-11-22 13:04:27,967 INFO L270 CegarLoopResult]: At program point L759-1(lines 744 762) the Hoare annotation is: false [2020-11-22 13:04:27,967 INFO L270 CegarLoopResult]: At program point L759-2(lines 744 762) the Hoare annotation is: false [2020-11-22 13:04:27,968 INFO L274 CegarLoopResult]: For program point L561(lines 561 567) no Hoare annotation was computed. [2020-11-22 13:04:27,968 INFO L270 CegarLoopResult]: At program point L561-1(lines 561 567) the Hoare annotation is: (let ((.cse3 (= ~systemActive~0 (_ bv0 32)))) (let ((.cse1 (not .cse3)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) .cse2) (and .cse0 .cse1 .cse2 (= (_ bv0 32) (bvadd ~waterLevel~0 (_ bv4294967294 32)))) (and .cse0 .cse1 (= (_ bv1 32) ~pumpRunning~0)) (and .cse0 .cse2 .cse3)))) [2020-11-22 13:04:27,968 INFO L274 CegarLoopResult]: For program point L545(lines 545 551) no Hoare annotation was computed. [2020-11-22 13:04:27,968 INFO L270 CegarLoopResult]: At program point L545-1(lines 545 551) the Hoare annotation is: (let ((.cse3 (= ~systemActive~0 (_ bv0 32)))) (let ((.cse1 (not .cse3)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) .cse2) (and .cse0 .cse1 .cse2 (= (_ bv0 32) (bvadd ~waterLevel~0 (_ bv4294967294 32)))) (and .cse0 .cse1 (= (_ bv1 32) ~pumpRunning~0)) (and .cse0 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|) .cse2 .cse3)))) [2020-11-22 13:04:27,968 INFO L274 CegarLoopResult]: For program point L810(lines 810 814) no Hoare annotation was computed. [2020-11-22 13:04:27,968 INFO L270 CegarLoopResult]: At program point L695(lines 688 698) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)) (not (= ~systemActive~0 (_ bv0 32))) (= (_ bv0 32) ~pumpRunning~0) (= (_ bv0 32) (bvadd ~waterLevel~0 (_ bv4294967294 32)))) [2020-11-22 13:04:27,968 INFO L270 CegarLoopResult]: At program point L695-1(lines 688 698) the Hoare annotation is: false [2020-11-22 13:04:27,968 INFO L270 CegarLoopResult]: At program point L695-2(lines 688 698) the Hoare annotation is: false [2020-11-22 13:04:28,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:04:28 BoogieIcfgContainer [2020-11-22 13:04:28,007 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:04:28,007 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:04:28,007 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:04:28,008 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:04:28,008 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:04:12" (3/4) ... [2020-11-22 13:04:28,021 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-22 13:04:28,043 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-11-22 13:04:28,046 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-11-22 13:04:28,047 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-11-22 13:04:28,048 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-22 13:04:28,049 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-22 13:04:28,050 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 13:04:28,050 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 13:04:28,078 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) || ((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && 1bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && 0bv32 == \result) && 0bv32 == pumpRunning) && systemActive == 0bv32)) || (((((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && waterLevel == 2bv32) && 2bv32 == tmp) && 0bv32 == pumpRunning) && 2bv32 == \result) [2020-11-22 13:04:28,079 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) || (((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) && 0bv32 == ~bvadd64(waterLevel, 4294967294bv32))) || ((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && 1bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && 0bv32 == \result) && 0bv32 == pumpRunning) && systemActive == 0bv32) [2020-11-22 13:04:28,079 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) || (((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) && 0bv32 == ~bvadd64(waterLevel, 4294967294bv32))) || ((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && 1bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && 0bv32 == \result) && 0bv32 == pumpRunning) && systemActive == 0bv32) [2020-11-22 13:04:28,080 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1bv32 == \result && splverifierCounter == 0bv32) && !(systemActive == 0bv32)) && 1bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && 0bv32 == \result) && 0bv32 == pumpRunning) && 0bv32 == ~bvadd64(waterLevel, 4294967294bv32))) || ((((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && 0bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && 0bv32 == \result) && 0bv32 == pumpRunning) && systemActive == 0bv32) [2020-11-22 13:04:28,080 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((1bv32 == \result && splverifierCounter == 0bv32) && !(systemActive == 0bv32)) && 1bv32 == pumpRunning) && 1bv32 == switchedOnBeforeTS) || ((((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && 0bv32 == \result) && 0bv32 == pumpRunning) && 0bv32 == ~bvadd64(waterLevel, 4294967294bv32))) || ((((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && 0bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && 0bv32 == \result) && 0bv32 == pumpRunning) && systemActive == 0bv32) [2020-11-22 13:04:28,080 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) || ((((1bv32 == \result && splverifierCounter == 0bv32) && !(systemActive == 0bv32)) && 1bv32 == pumpRunning) && 1bv32 == switchedOnBeforeTS)) || (((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) && 0bv32 == ~bvadd64(waterLevel, 4294967294bv32))) || (((splverifierCounter == 0bv32 && 0bv32 == \result) && 0bv32 == pumpRunning) && systemActive == 0bv32) [2020-11-22 13:04:28,081 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) || ((((1bv32 == \result && splverifierCounter == 0bv32) && !(systemActive == 0bv32)) && 1bv32 == pumpRunning) && 1bv32 == switchedOnBeforeTS)) || (((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) && 0bv32 == ~bvadd64(waterLevel, 4294967294bv32))) || (((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && 1bv32 == pumpRunning) && 0bv32 == ~bvadd64(waterLevel, 4294967294bv32))) || (((splverifierCounter == 0bv32 && 0bv32 == \result) && 0bv32 == pumpRunning) && systemActive == 0bv32) [2020-11-22 13:04:28,082 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) || ((((1bv32 == \result && splverifierCounter == 0bv32) && !(systemActive == 0bv32)) && 1bv32 == pumpRunning) && 1bv32 == switchedOnBeforeTS)) || ((((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && waterLevel == 2bv32) && 0bv32 == pumpRunning) && 2bv32 == \result)) || (((splverifierCounter == 0bv32 && 0bv32 == \result) && 0bv32 == pumpRunning) && systemActive == 0bv32)) || ((((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && waterLevel == 2bv32) && 1bv32 == pumpRunning) && 2bv32 == \result) [2020-11-22 13:04:28,082 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) && 0bv32 == ~bvadd64(waterLevel, 4294967294bv32)) || ((((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) [2020-11-22 13:04:28,083 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1bv32 == \result && splverifierCounter == 0bv32) && !(systemActive == 0bv32)) && 1bv32 == pumpRunning) && 1bv32 == switchedOnBeforeTS) || ((((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && 0bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && 0bv32 == \result) && 0bv32 == pumpRunning) && systemActive == 0bv32) [2020-11-22 13:04:28,083 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) && 0bv32 == ~bvadd64(waterLevel, 4294967294bv32)) || ((((((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && tmp___0 == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && \result == 0bv32) && !(tmp == 0bv32)) [2020-11-22 13:04:28,134 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_697e4314-927d-4933-8f0b-48412569c364/bin/utaipan/witness.graphml [2020-11-22 13:04:28,135 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:04:28,138 INFO L168 Benchmark]: Toolchain (without parser) took 18896.67 ms. Allocated memory was 58.7 MB in the beginning and 151.0 MB in the end (delta: 92.3 MB). Free memory was 36.2 MB in the beginning and 57.3 MB in the end (delta: -21.1 MB). Peak memory consumption was 70.6 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:28,139 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 58.7 MB. Free memory is still 40.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:04:28,139 INFO L168 Benchmark]: CACSL2BoogieTranslator took 790.41 ms. Allocated memory is still 58.7 MB. Free memory was 36.0 MB in the beginning and 24.8 MB in the end (delta: 11.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:28,139 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.36 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 24.8 MB in the beginning and 52.0 MB in the end (delta: -27.3 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:28,140 INFO L168 Benchmark]: Boogie Preprocessor took 42.07 ms. Allocated memory is still 71.3 MB. Free memory was 52.0 MB in the beginning and 49.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:28,140 INFO L168 Benchmark]: RCFGBuilder took 2512.70 ms. Allocated memory is still 71.3 MB. Free memory was 49.6 MB in the beginning and 32.2 MB in the end (delta: 17.4 MB). Peak memory consumption was 25.3 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:28,141 INFO L168 Benchmark]: TraceAbstraction took 15331.71 ms. Allocated memory was 71.3 MB in the beginning and 151.0 MB in the end (delta: 79.7 MB). Free memory was 31.7 MB in the beginning and 65.6 MB in the end (delta: -33.9 MB). Peak memory consumption was 72.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:28,141 INFO L168 Benchmark]: Witness Printer took 127.34 ms. Allocated memory is still 151.0 MB. Free memory was 65.6 MB in the beginning and 57.3 MB in the end (delta: 8.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:28,145 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 58.7 MB. Free memory is still 40.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 790.41 ms. Allocated memory is still 58.7 MB. Free memory was 36.0 MB in the beginning and 24.8 MB in the end (delta: 11.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 86.36 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 24.8 MB in the beginning and 52.0 MB in the end (delta: -27.3 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.07 ms. Allocated memory is still 71.3 MB. Free memory was 52.0 MB in the beginning and 49.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2512.70 ms. Allocated memory is still 71.3 MB. Free memory was 49.6 MB in the beginning and 32.2 MB in the end (delta: 17.4 MB). Peak memory consumption was 25.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 15331.71 ms. Allocated memory was 71.3 MB in the beginning and 151.0 MB in the end (delta: 79.7 MB). Free memory was 31.7 MB in the beginning and 65.6 MB in the end (delta: -33.9 MB). Peak memory consumption was 72.5 MB. Max. memory is 16.1 GB. * Witness Printer took 127.34 ms. Allocated memory is still 151.0 MB. Free memory was 65.6 MB in the beginning and 57.3 MB in the end (delta: 8.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 859]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) && 0bv32 == ~bvadd64(waterLevel, 4294967294bv32)) || ((((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && 1bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 597]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) || ((((1bv32 == \result && splverifierCounter == 0bv32) && !(systemActive == 0bv32)) && 1bv32 == pumpRunning) && 1bv32 == switchedOnBeforeTS)) || (((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) && 0bv32 == ~bvadd64(waterLevel, 4294967294bv32))) || (((splverifierCounter == 0bv32 && 0bv32 == \result) && 0bv32 == pumpRunning) && systemActive == 0bv32) - InvariantResult [Line: 859]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 597]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 859]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 420]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 467]: Loop Invariant Derived loop invariant: (~bvadd64(waterLevel, 4294967295bv32) == 0bv32 && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32 - InvariantResult [Line: 850]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) || ((((1bv32 == \result && splverifierCounter == 0bv32) && !(systemActive == 0bv32)) && 1bv32 == pumpRunning) && 1bv32 == switchedOnBeforeTS)) || ((((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && waterLevel == 2bv32) && 0bv32 == pumpRunning) && 2bv32 == \result)) || (((splverifierCounter == 0bv32 && 0bv32 == \result) && 0bv32 == pumpRunning) && systemActive == 0bv32)) || ((((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && waterLevel == 2bv32) && 1bv32 == pumpRunning) && 2bv32 == \result) - InvariantResult [Line: 597]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 535]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) || (((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) && 0bv32 == ~bvadd64(waterLevel, 4294967294bv32))) || ((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && 1bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && 0bv32 == \result) && 0bv32 == pumpRunning) && systemActive == 0bv32) - InvariantResult [Line: 850]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 608]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) || ((((1bv32 == \result && splverifierCounter == 0bv32) && !(systemActive == 0bv32)) && 1bv32 == pumpRunning) && 1bv32 == switchedOnBeforeTS)) || (((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) && 0bv32 == ~bvadd64(waterLevel, 4294967294bv32))) || (((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && 1bv32 == pumpRunning) && 0bv32 == ~bvadd64(waterLevel, 4294967294bv32))) || (((splverifierCounter == 0bv32 && 0bv32 == \result) && 0bv32 == pumpRunning) && systemActive == 0bv32) - InvariantResult [Line: 850]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 608]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 699]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 699]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 699]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 876]: Loop Invariant Derived loop invariant: (~bvadd64(waterLevel, 4294967295bv32) == 0bv32 && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32 - InvariantResult [Line: 699]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 561]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) || (((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) && 0bv32 == ~bvadd64(waterLevel, 4294967294bv32))) || ((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && 1bv32 == pumpRunning)) || ((splverifierCounter == 0bv32 && 0bv32 == pumpRunning) && systemActive == 0bv32) - InvariantResult [Line: 949]: Loop Invariant Derived loop invariant: (~bvadd64(waterLevel, 4294967295bv32) == 0bv32 && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32 - InvariantResult [Line: 601]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 744]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) && 0bv32 == ~bvadd64(waterLevel, 4294967294bv32)) || ((((((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && tmp___0 == 0bv32) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && \result == 0bv32) && !(tmp == 0bv32)) - InvariantResult [Line: 818]: Loop Invariant Derived loop invariant: ((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) && 0bv32 == ~bvadd64(waterLevel, 4294967294bv32) - InvariantResult [Line: 688]: Loop Invariant Derived loop invariant: ((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) && 0bv32 == ~bvadd64(waterLevel, 4294967294bv32) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 744]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 818]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 688]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 545]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) || (((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) && 0bv32 == ~bvadd64(waterLevel, 4294967294bv32))) || ((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && 1bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && 0bv32 == \result) && 0bv32 == pumpRunning) && systemActive == 0bv32) - InvariantResult [Line: 699]: Loop Invariant Derived loop invariant: (((((1bv32 == \result && splverifierCounter == 0bv32) && !(systemActive == 0bv32)) && 1bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && 0bv32 == \result) && 0bv32 == pumpRunning) && 0bv32 == ~bvadd64(waterLevel, 4294967294bv32))) || ((((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && 0bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && 0bv32 == \result) && 0bv32 == pumpRunning) && systemActive == 0bv32) - InvariantResult [Line: 744]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 818]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 688]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 699]: Loop Invariant Derived loop invariant: (((((1bv32 == \result && splverifierCounter == 0bv32) && !(systemActive == 0bv32)) && 1bv32 == pumpRunning) && 1bv32 == switchedOnBeforeTS) || ((((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && 0bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && 0bv32 == \result) && 0bv32 == pumpRunning) && systemActive == 0bv32) - InvariantResult [Line: 767]: Loop Invariant Derived loop invariant: splverifierCounter == 0bv32 && 0bv32 == pumpRunning - InvariantResult [Line: 608]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 500]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 490]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 524]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (~bvadd64(waterLevel, 4294967295bv32) == 0bv32 && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32 - InvariantResult [Line: 601]: Loop Invariant Derived loop invariant: ((((((1bv32 == \result && splverifierCounter == 0bv32) && !(systemActive == 0bv32)) && 1bv32 == pumpRunning) && 1bv32 == switchedOnBeforeTS) || ((((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && 0bv32 == \result) && 0bv32 == pumpRunning) && 0bv32 == ~bvadd64(waterLevel, 4294967294bv32))) || ((((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && 0bv32 == \result) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && 0bv32 == \result) && 0bv32 == pumpRunning) && systemActive == 0bv32) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) || ((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && 1bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && 0bv32 == \result) && 0bv32 == pumpRunning) && systemActive == 0bv32)) || (((((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && waterLevel == 2bv32) && 2bv32 == tmp) && 0bv32 == pumpRunning) && 2bv32 == \result) - InvariantResult [Line: 601]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 101 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.5s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 984 SDtfs, 1113 SDslu, 1894 SDs, 0 SdLazy, 256 SolverSat, 61 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1248 GetRequests, 1192 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=310occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 799 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 45 LocationsWithAnnotation, 45 PreInvPairs, 158 NumberOfFragments, 837 HoareAnnotationTreeSize, 45 FomulaSimplifications, 121827 FormulaSimplificationTreeSizeReduction, 1.3s HoareSimplificationTime, 45 FomulaSimplificationsInter, 58671 FormulaSimplificationTreeSizeReductionInter, 5.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 626 NumberOfCodeBlocks, 626 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1224 ConstructedInterpolants, 1 QuantifiedInterpolants, 155377 SizeOfPredicates, 32 NumberOfNonLiveVariables, 3214 ConjunctsInSsa, 54 ConjunctsInUnsatCore, 28 InterpolantComputations, 20 PerfectInterpolantSequences, 484/520 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 correct! Received shutdown request...