./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec3_product22.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec3_product22.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8 --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 10f09c8c5639b403d441157c6cb90f176690981c36f4af5417d0103735cbe364 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:15:34,607 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:15:34,609 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:15:34,666 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:15:34,668 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:15:34,673 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:15:34,675 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:15:34,679 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:15:34,682 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:15:34,687 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:15:34,688 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:15:34,691 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:15:34,692 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:15:34,694 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:15:34,696 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:15:34,699 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:15:34,700 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:15:34,701 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:15:34,706 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:15:34,711 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:15:34,713 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:15:34,715 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:15:34,718 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:15:34,719 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:15:34,723 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:15:34,724 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:15:34,724 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:15:34,726 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:15:34,727 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:15:34,728 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:15:34,728 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:15:34,729 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:15:34,731 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:15:34,733 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:15:34,734 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:15:34,734 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:15:34,735 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:15:34,735 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:15:34,736 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:15:34,737 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:15:34,737 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:15:34,738 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 02:15:34,780 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:15:34,780 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:15:34,781 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:15:34,781 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:15:34,781 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:15:34,782 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:15:34,782 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:15:34,782 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:15:34,782 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:15:34,782 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:15:34,782 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:15:34,783 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:15:34,783 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:15:34,783 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:15:34,783 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:15:34,784 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:15:34,784 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 02:15:34,784 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:15:34,784 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 02:15:34,785 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:15:34,785 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:15:34,785 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:15:34,785 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:15:34,785 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:15:34,786 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 02:15:34,786 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:15:34,786 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:15:34,786 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:15:34,786 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:15:34,787 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:15:34,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:15:34,787 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:15:34,787 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:15:34,788 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:15:34,788 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:15:34,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:15:34,788 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:15:34,788 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:15:34,788 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:15:34,789 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_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10f09c8c5639b403d441157c6cb90f176690981c36f4af5417d0103735cbe364 [2021-11-07 02:15:35,089 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:15:35,118 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:15:35,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:15:35,130 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:15:35,131 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:15:35,132 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/product-lines/elevator_spec3_product22.cil.c [2021-11-07 02:15:35,219 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/data/c6bb1e389/547f2d3bdc9849b496e41f66ad7e1a10/FLAGd1bcdb47f [2021-11-07 02:15:35,909 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:15:35,909 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/sv-benchmarks/c/product-lines/elevator_spec3_product22.cil.c [2021-11-07 02:15:35,940 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/data/c6bb1e389/547f2d3bdc9849b496e41f66ad7e1a10/FLAGd1bcdb47f [2021-11-07 02:15:36,121 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/data/c6bb1e389/547f2d3bdc9849b496e41f66ad7e1a10 [2021-11-07 02:15:36,123 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:15:36,124 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:15:36,126 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:15:36,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:15:36,129 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:15:36,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:15:36" (1/1) ... [2021-11-07 02:15:36,131 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29430b7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:15:36, skipping insertion in model container [2021-11-07 02:15:36,132 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:15:36" (1/1) ... [2021-11-07 02:15:36,138 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:15:36,225 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:15:36,439 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/sv-benchmarks/c/product-lines/elevator_spec3_product22.cil.c[3205,3218] [2021-11-07 02:15:36,765 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:15:36,785 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) [2021-11-07 02:15:36,786 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1e09ce73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:15:36, skipping insertion in model container [2021-11-07 02:15:36,786 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:15:36,786 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 02:15:36,788 INFO L168 Benchmark]: Toolchain (without parser) took 662.82 ms. Allocated memory is still 100.7 MB. Free memory was 63.5 MB in the beginning and 62.8 MB in the end (delta: 680.4 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 02:15:36,789 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 100.7 MB. Free memory is still 82.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:15:36,790 INFO L168 Benchmark]: CACSL2BoogieTranslator took 660.16 ms. Allocated memory is still 100.7 MB. Free memory was 63.3 MB in the beginning and 62.8 MB in the end (delta: 458.3 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 02:15:36,791 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 100.7 MB. Free memory is still 82.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 660.16 ms. Allocated memory is still 100.7 MB. Free memory was 63.3 MB in the beginning and 62.8 MB in the end (delta: 458.3 kB). 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: 188]: 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... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec3_product22.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8 --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 10f09c8c5639b403d441157c6cb90f176690981c36f4af5417d0103735cbe364 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:15:38,929 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:15:38,931 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:15:38,967 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:15:38,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:15:38,973 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:15:38,974 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:15:38,984 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:15:38,987 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:15:38,995 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:15:38,996 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:15:38,997 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:15:38,997 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:15:38,999 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:15:39,000 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:15:39,001 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:15:39,002 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:15:39,003 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:15:39,005 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:15:39,018 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:15:39,020 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:15:39,022 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:15:39,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:15:39,029 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:15:39,034 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:15:39,035 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:15:39,036 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:15:39,038 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:15:39,038 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:15:39,039 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:15:39,040 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:15:39,041 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:15:39,043 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:15:39,044 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:15:39,046 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:15:39,046 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:15:39,047 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:15:39,047 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:15:39,048 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:15:39,050 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:15:39,050 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:15:39,056 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-07 02:15:39,106 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:15:39,106 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:15:39,107 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:15:39,108 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:15:39,108 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:15:39,108 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:15:39,108 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:15:39,108 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:15:39,109 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:15:39,111 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:15:39,112 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 02:15:39,112 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 02:15:39,112 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:15:39,113 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:15:39,113 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:15:39,113 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:15:39,114 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:15:39,114 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 02:15:39,114 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 02:15:39,114 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 02:15:39,114 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:15:39,115 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:15:39,115 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:15:39,115 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:15:39,115 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 02:15:39,116 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:15:39,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:15:39,116 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:15:39,116 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:15:39,117 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:15:39,117 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 02:15:39,117 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 02:15:39,117 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:15:39,118 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:15:39,118 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:15:39,118 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_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10f09c8c5639b403d441157c6cb90f176690981c36f4af5417d0103735cbe364 [2021-11-07 02:15:39,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:15:39,541 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:15:39,543 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:15:39,545 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:15:39,545 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:15:39,546 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/product-lines/elevator_spec3_product22.cil.c [2021-11-07 02:15:39,616 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/data/4e381cb7b/ec74c8b834a946dda5fc3cb6285e176b/FLAG808948d18 [2021-11-07 02:15:40,279 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:15:40,279 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/sv-benchmarks/c/product-lines/elevator_spec3_product22.cil.c [2021-11-07 02:15:40,303 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/data/4e381cb7b/ec74c8b834a946dda5fc3cb6285e176b/FLAG808948d18 [2021-11-07 02:15:40,473 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/data/4e381cb7b/ec74c8b834a946dda5fc3cb6285e176b [2021-11-07 02:15:40,479 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:15:40,481 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:15:40,482 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:15:40,483 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:15:40,486 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:15:40,487 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:15:40" (1/1) ... [2021-11-07 02:15:40,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2057179c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:15:40, skipping insertion in model container [2021-11-07 02:15:40,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:15:40" (1/1) ... [2021-11-07 02:15:40,495 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:15:40,603 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:15:40,863 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/sv-benchmarks/c/product-lines/elevator_spec3_product22.cil.c[3205,3218] [2021-11-07 02:15:41,301 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:15:41,315 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 02:15:41,342 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:15:41,348 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/sv-benchmarks/c/product-lines/elevator_spec3_product22.cil.c[3205,3218] [2021-11-07 02:15:41,481 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:15:41,493 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:15:41,507 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/sv-benchmarks/c/product-lines/elevator_spec3_product22.cil.c[3205,3218] [2021-11-07 02:15:41,573 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:15:41,623 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:15:41,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:15:41 WrapperNode [2021-11-07 02:15:41,624 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:15:41,625 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:15:41,625 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:15:41,625 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:15:41,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:15:41" (1/1) ... [2021-11-07 02:15:41,669 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:15:41" (1/1) ... [2021-11-07 02:15:42,903 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:15:42,904 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:15:42,905 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:15:42,905 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:15:42,913 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:15:41" (1/1) ... [2021-11-07 02:15:42,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:15:41" (1/1) ... [2021-11-07 02:15:43,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:15:41" (1/1) ... [2021-11-07 02:15:43,140 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:15:41" (1/1) ... [2021-11-07 02:15:43,788 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:15:41" (1/1) ... [2021-11-07 02:15:44,510 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:15:41" (1/1) ... [2021-11-07 02:15:44,621 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:15:41" (1/1) ... [2021-11-07 02:15:44,834 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:15:44,836 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:15:44,836 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:15:44,837 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:15:44,838 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:15:41" (1/1) ... [2021-11-07 02:15:44,845 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:15:44,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:15:44,872 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:15:44,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:15:44,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:15:44,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 02:15:44,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:15:44,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:16:18,319 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:16:18,320 INFO L299 CfgBuilder]: Removed 3577 assume(true) statements. [2021-11-07 02:16:18,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:16:18 BoogieIcfgContainer [2021-11-07 02:16:18,339 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:16:18,341 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:16:18,341 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:16:18,344 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:16:18,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:15:40" (1/3) ... [2021-11-07 02:16:18,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f44c6fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:16:18, skipping insertion in model container [2021-11-07 02:16:18,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:15:41" (2/3) ... [2021-11-07 02:16:18,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f44c6fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:16:18, skipping insertion in model container [2021-11-07 02:16:18,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:16:18" (3/3) ... [2021-11-07 02:16:18,348 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product22.cil.c [2021-11-07 02:16:18,353 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:16:18,354 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-11-07 02:16:18,473 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:16:18,482 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 02:16:18,482 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-11-07 02:16:18,919 INFO L276 IsEmpty]: Start isEmpty. Operand has 16793 states, 16782 states have (on average 1.896675008938148) internal successors, (31830), 16792 states have internal predecessors, (31830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:16:18,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-07 02:16:18,932 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:16:18,933 INFO L513 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] [2021-11-07 02:16:18,934 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 02:16:18,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:16:18,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1617621870, now seen corresponding path program 1 times [2021-11-07 02:16:18,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:16:18,959 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [163007895] [2021-11-07 02:16:18,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:16:18,961 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:16:18,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:16:18,967 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:16:18,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 02:16:19,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:16:19,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 02:16:19,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:16:19,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:16:19,473 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:16:19,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:16:19,577 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:16:19,578 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [163007895] [2021-11-07 02:16:19,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [163007895] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:16:19,579 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:16:19,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-07 02:16:19,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249776375] [2021-11-07 02:16:19,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 02:16:19,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:16:19,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 02:16:19,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 02:16:19,643 INFO L87 Difference]: Start difference. First operand has 16793 states, 16782 states have (on average 1.896675008938148) internal successors, (31830), 16792 states have internal predecessors, (31830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:16:26,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:16:26,024 INFO L93 Difference]: Finished difference Result 117173 states and 222091 transitions. [2021-11-07 02:16:26,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 02:16:26,030 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-07 02:16:26,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:16:26,644 INFO L225 Difference]: With dead ends: 117173 [2021-11-07 02:16:26,644 INFO L226 Difference]: Without dead ends: 100381 [2021-11-07 02:16:26,726 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-11-07 02:16:26,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100381 states. [2021-11-07 02:16:28,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100381 to 16805. [2021-11-07 02:16:28,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16805 states, 16795 states have (on average 1.8950282822268532) internal successors, (31827), 16804 states have internal predecessors, (31827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:16:28,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16805 states to 16805 states and 31827 transitions. [2021-11-07 02:16:28,337 INFO L78 Accepts]: Start accepts. Automaton has 16805 states and 31827 transitions. Word has length 30 [2021-11-07 02:16:28,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:16:28,338 INFO L470 AbstractCegarLoop]: Abstraction has 16805 states and 31827 transitions. [2021-11-07 02:16:28,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:16:28,339 INFO L276 IsEmpty]: Start isEmpty. Operand 16805 states and 31827 transitions. [2021-11-07 02:16:28,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-07 02:16:28,348 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:16:28,348 INFO L513 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] [2021-11-07 02:16:28,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 02:16:28,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:16:28,562 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 02:16:28,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:16:28,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1296270788, now seen corresponding path program 1 times [2021-11-07 02:16:28,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:16:28,568 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1530817190] [2021-11-07 02:16:28,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:16:28,569 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:16:28,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:16:28,570 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:16:28,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 02:16:28,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:16:28,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 02:16:28,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:16:29,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:16:29,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:16:29,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:16:29,118 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:16:29,118 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1530817190] [2021-11-07 02:16:29,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1530817190] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:16:29,119 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:16:29,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 02:16:29,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451466602] [2021-11-07 02:16:29,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:16:29,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:16:29,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:16:29,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:16:29,125 INFO L87 Difference]: Start difference. First operand 16805 states and 31827 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:16:30,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:16:30,074 INFO L93 Difference]: Finished difference Result 33522 states and 63497 transitions. [2021-11-07 02:16:30,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:16:30,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-11-07 02:16:30,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:16:30,135 INFO L225 Difference]: With dead ends: 33522 [2021-11-07 02:16:30,135 INFO L226 Difference]: Without dead ends: 16731 [2021-11-07 02:16:30,159 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:16:30,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16731 states. [2021-11-07 02:16:30,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16731 to 16731. [2021-11-07 02:16:30,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16731 states, 16721 states have (on average 1.8948029424077508) internal successors, (31683), 16730 states have internal predecessors, (31683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:16:30,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16731 states to 16731 states and 31683 transitions. [2021-11-07 02:16:30,750 INFO L78 Accepts]: Start accepts. Automaton has 16731 states and 31683 transitions. Word has length 32 [2021-11-07 02:16:30,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:16:30,752 INFO L470 AbstractCegarLoop]: Abstraction has 16731 states and 31683 transitions. [2021-11-07 02:16:30,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:16:30,752 INFO L276 IsEmpty]: Start isEmpty. Operand 16731 states and 31683 transitions. [2021-11-07 02:16:30,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-07 02:16:30,754 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:16:30,760 INFO L513 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] [2021-11-07 02:16:30,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 02:16:30,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:16:30,976 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 02:16:30,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:16:30,986 INFO L85 PathProgramCache]: Analyzing trace with hash 2065945574, now seen corresponding path program 1 times [2021-11-07 02:16:30,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:16:30,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2137598350] [2021-11-07 02:16:30,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:16:30,987 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:16:30,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:16:30,989 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:16:31,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 02:16:31,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:16:31,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 02:16:31,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:16:31,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:16:31,483 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:16:31,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:16:31,609 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:16:31,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2137598350] [2021-11-07 02:16:31,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2137598350] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:16:31,610 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:16:31,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-07 02:16:31,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119543284] [2021-11-07 02:16:31,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 02:16:31,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:16:31,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 02:16:31,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 02:16:31,612 INFO L87 Difference]: Start difference. First operand 16731 states and 31683 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:16:32,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:16:32,932 INFO L93 Difference]: Finished difference Result 33436 states and 63329 transitions. [2021-11-07 02:16:32,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 02:16:32,932 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-07 02:16:32,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:16:32,983 INFO L225 Difference]: With dead ends: 33436 [2021-11-07 02:16:32,983 INFO L226 Difference]: Without dead ends: 16731 [2021-11-07 02:16:33,004 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-11-07 02:16:33,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16731 states. [2021-11-07 02:16:33,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16731 to 16731. [2021-11-07 02:16:33,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16731 states, 16721 states have (on average 1.8942048920519108) internal successors, (31673), 16730 states have internal predecessors, (31673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:16:33,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16731 states to 16731 states and 31673 transitions. [2021-11-07 02:16:33,823 INFO L78 Accepts]: Start accepts. Automaton has 16731 states and 31673 transitions. Word has length 34 [2021-11-07 02:16:33,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:16:33,823 INFO L470 AbstractCegarLoop]: Abstraction has 16731 states and 31673 transitions. [2021-11-07 02:16:33,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:16:33,825 INFO L276 IsEmpty]: Start isEmpty. Operand 16731 states and 31673 transitions. [2021-11-07 02:16:33,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-07 02:16:33,828 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:16:33,829 INFO L513 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, 1] [2021-11-07 02:16:33,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 02:16:34,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:16:34,044 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 02:16:34,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:16:34,045 INFO L85 PathProgramCache]: Analyzing trace with hash 125987804, now seen corresponding path program 1 times [2021-11-07 02:16:34,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:16:34,046 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1109460609] [2021-11-07 02:16:34,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:16:34,047 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:16:34,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:16:34,048 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:16:34,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 02:16:34,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:16:34,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:16:34,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:16:34,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:16:34,587 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:16:34,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:16:34,757 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:16:34,757 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1109460609] [2021-11-07 02:16:34,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1109460609] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:16:34,757 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:16:34,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-07 02:16:34,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935378702] [2021-11-07 02:16:34,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 02:16:34,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:16:34,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 02:16:34,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 02:16:34,759 INFO L87 Difference]: Start difference. First operand 16731 states and 31673 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:16:44,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:16:44,049 INFO L93 Difference]: Finished difference Result 74200 states and 140069 transitions. [2021-11-07 02:16:44,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-07 02:16:44,050 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2021-11-07 02:16:44,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:16:44,291 INFO L225 Difference]: With dead ends: 74200 [2021-11-07 02:16:44,291 INFO L226 Difference]: Without dead ends: 57539 [2021-11-07 02:16:44,325 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=143, Invalid=319, Unknown=0, NotChecked=0, Total=462 [2021-11-07 02:16:44,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57539 states. [2021-11-07 02:16:45,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57539 to 29802. [2021-11-07 02:16:45,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29802 states, 29792 states have (on average 1.8938305585392052) internal successors, (56421), 29801 states have internal predecessors, (56421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:16:46,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29802 states to 29802 states and 56421 transitions. [2021-11-07 02:16:46,045 INFO L78 Accepts]: Start accepts. Automaton has 29802 states and 56421 transitions. Word has length 38 [2021-11-07 02:16:46,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:16:46,046 INFO L470 AbstractCegarLoop]: Abstraction has 29802 states and 56421 transitions. [2021-11-07 02:16:46,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:16:46,046 INFO L276 IsEmpty]: Start isEmpty. Operand 29802 states and 56421 transitions. [2021-11-07 02:16:46,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-07 02:16:46,047 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:16:46,047 INFO L513 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, 1] [2021-11-07 02:16:46,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 02:16:46,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:16:46,264 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 02:16:46,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:16:46,266 INFO L85 PathProgramCache]: Analyzing trace with hash -566726153, now seen corresponding path program 1 times [2021-11-07 02:16:46,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:16:46,270 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1593599417] [2021-11-07 02:16:46,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:16:46,270 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:16:46,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:16:46,271 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:16:46,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 02:16:46,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:16:46,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:16:46,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:16:46,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:16:46,847 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:16:46,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:16:46,993 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:16:46,993 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1593599417] [2021-11-07 02:16:46,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1593599417] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:16:46,993 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:16:46,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 02:16:46,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201259622] [2021-11-07 02:16:46,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:16:46,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:16:46,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:16:46,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:16:46,995 INFO L87 Difference]: Start difference. First operand 29802 states and 56421 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:16:57,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:16:57,980 INFO L93 Difference]: Finished difference Result 247579 states and 468818 transitions. [2021-11-07 02:16:57,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 02:16:57,980 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2021-11-07 02:16:57,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:16:58,764 INFO L225 Difference]: With dead ends: 247579 [2021-11-07 02:16:58,764 INFO L226 Difference]: Without dead ends: 217847 [2021-11-07 02:16:58,883 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-07 02:16:59,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217847 states. [2021-11-07 02:17:02,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217847 to 55107. [2021-11-07 02:17:02,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55107 states, 55097 states have (on average 1.8893769170735248) internal successors, (104099), 55106 states have internal predecessors, (104099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:17:03,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55107 states to 55107 states and 104099 transitions. [2021-11-07 02:17:03,128 INFO L78 Accepts]: Start accepts. Automaton has 55107 states and 104099 transitions. Word has length 38 [2021-11-07 02:17:03,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:17:03,129 INFO L470 AbstractCegarLoop]: Abstraction has 55107 states and 104099 transitions. [2021-11-07 02:17:03,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:17:03,129 INFO L276 IsEmpty]: Start isEmpty. Operand 55107 states and 104099 transitions. [2021-11-07 02:17:03,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 02:17:03,129 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:17:03,130 INFO L513 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, 1, 1] [2021-11-07 02:17:03,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 02:17:03,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:17:03,350 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 02:17:03,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:17:03,351 INFO L85 PathProgramCache]: Analyzing trace with hash 109675891, now seen corresponding path program 1 times [2021-11-07 02:17:03,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:17:03,353 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [516314611] [2021-11-07 02:17:03,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:17:03,353 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:17:03,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:17:03,355 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:17:03,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 02:17:03,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:17:03,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 02:17:03,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:17:03,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:17:03,881 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:17:03,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:17:03,954 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:17:03,954 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [516314611] [2021-11-07 02:17:03,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [516314611] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:17:03,954 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:17:03,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 02:17:03,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372814752] [2021-11-07 02:17:03,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:17:03,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:17:03,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:17:03,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:17:03,956 INFO L87 Difference]: Start difference. First operand 55107 states and 104099 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:17:07,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:17:07,671 INFO L93 Difference]: Finished difference Result 164161 states and 310103 transitions. [2021-11-07 02:17:07,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:17:07,672 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-11-07 02:17:07,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:17:07,884 INFO L225 Difference]: With dead ends: 164161 [2021-11-07 02:17:07,884 INFO L226 Difference]: Without dead ends: 109086 [2021-11-07 02:17:07,950 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:17:08,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109086 states. [2021-11-07 02:17:10,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109086 to 54983. [2021-11-07 02:17:10,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54983 states, 54973 states have (on average 1.8891273898095429) internal successors, (103851), 54982 states have internal predecessors, (103851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:17:10,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54983 states to 54983 states and 103851 transitions. [2021-11-07 02:17:10,720 INFO L78 Accepts]: Start accepts. Automaton has 54983 states and 103851 transitions. Word has length 39 [2021-11-07 02:17:10,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:17:10,720 INFO L470 AbstractCegarLoop]: Abstraction has 54983 states and 103851 transitions. [2021-11-07 02:17:10,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:17:10,720 INFO L276 IsEmpty]: Start isEmpty. Operand 54983 states and 103851 transitions. [2021-11-07 02:17:10,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 02:17:10,721 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:17:10,721 INFO L513 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, 1, 1] [2021-11-07 02:17:10,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 02:17:10,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:17:10,921 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 02:17:10,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:17:10,922 INFO L85 PathProgramCache]: Analyzing trace with hash -2132647664, now seen corresponding path program 1 times [2021-11-07 02:17:10,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:17:10,923 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [782953022] [2021-11-07 02:17:10,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:17:10,923 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:17:10,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:17:10,924 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:17:10,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_602572ff-642d-4454-a52e-b76a9a3a77bd/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 02:17:11,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:17:11,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 02:17:11,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:17:11,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:17:11,471 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:17:11,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:17:11,612 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:17:11,612 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [782953022] [2021-11-07 02:17:11,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [782953022] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:17:11,613 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:17:11,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-07 02:17:11,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568673866] [2021-11-07 02:17:11,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 02:17:11,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:17:11,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 02:17:11,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 02:17:11,615 INFO L87 Difference]: Start difference. First operand 54983 states and 103851 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)