./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label01.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label01.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl --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 25a329399ac3f0c42bfd0b3752cc2a04cb2662736babf7dc26be2e3a4966221c --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:20:08,640 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:20:08,642 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:20:08,685 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:20:08,685 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:20:08,687 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:20:08,689 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:20:08,693 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:20:08,696 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:20:08,697 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:20:08,699 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:20:08,701 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:20:08,702 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:20:08,703 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:20:08,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:20:08,708 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:20:08,709 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:20:08,711 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:20:08,714 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:20:08,717 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:20:08,720 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:20:08,724 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:20:08,726 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:20:08,730 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:20:08,735 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:20:08,740 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:20:08,744 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:20:08,746 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:20:08,747 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:20:08,748 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:20:08,750 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:20:08,752 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:20:08,753 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:20:08,755 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:20:08,757 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:20:08,758 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:20:08,760 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:20:08,760 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:20:08,761 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:20:08,765 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:20:08,766 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:20:08,768 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:20:08,821 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:20:08,821 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:20:08,822 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:20:08,822 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:20:08,823 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:20:08,823 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:20:08,823 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:20:08,824 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:20:08,824 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:20:08,824 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:20:08,825 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:20:08,825 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:20:08,825 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:20:08,825 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:20:08,826 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:20:08,826 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:20:08,826 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:20:08,827 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:20:08,828 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:20:08,828 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:20:08,828 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:20:08,828 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:20:08,829 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:20:08,829 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:20:08,829 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:20:08,830 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:20:08,830 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:20:08,830 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:20:08,830 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:20:08,831 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:20:08,831 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:20:08,831 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:20:08,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:20:08,832 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:20:08,832 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:20:08,832 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:20:08,833 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:20:08,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:20:08,833 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:20:08,834 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:20:08,834 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:20:08,834 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_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 25a329399ac3f0c42bfd0b3752cc2a04cb2662736babf7dc26be2e3a4966221c [2021-11-23 17:20:09,215 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:20:09,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:20:09,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:20:09,263 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:20:09,264 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:20:09,265 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/eca-rers2012/Problem10_label01.c [2021-11-23 17:20:09,354 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/data/51d22fae8/f3cc06c3ce074adf84dd7e8f10da2d2a/FLAG9ace28d2b [2021-11-23 17:20:10,046 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:20:10,061 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/sv-benchmarks/c/eca-rers2012/Problem10_label01.c [2021-11-23 17:20:10,078 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/data/51d22fae8/f3cc06c3ce074adf84dd7e8f10da2d2a/FLAG9ace28d2b [2021-11-23 17:20:10,230 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/data/51d22fae8/f3cc06c3ce074adf84dd7e8f10da2d2a [2021-11-23 17:20:10,233 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:20:10,236 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:20:10,241 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:20:10,244 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:20:10,248 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:20:10,249 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:20:10" (1/1) ... [2021-11-23 17:20:10,252 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cfb8961 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:10, skipping insertion in model container [2021-11-23 17:20:10,263 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:20:10" (1/1) ... [2021-11-23 17:20:10,273 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:20:10,323 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:20:10,550 WARN L230 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_63b68929-604b-47e3-885b-a1aba9a71807/sv-benchmarks/c/eca-rers2012/Problem10_label01.c[6098,6111] [2021-11-23 17:20:10,763 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:20:10,785 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:20:10,849 WARN L230 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_63b68929-604b-47e3-885b-a1aba9a71807/sv-benchmarks/c/eca-rers2012/Problem10_label01.c[6098,6111] [2021-11-23 17:20:10,954 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:20:10,975 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:20:10,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:10 WrapperNode [2021-11-23 17:20:10,976 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:20:10,977 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:20:10,978 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:20:10,978 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:20:10,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:10" (1/1) ... [2021-11-23 17:20:11,011 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:10" (1/1) ... [2021-11-23 17:20:11,119 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 597 [2021-11-23 17:20:11,119 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:20:11,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:20:11,121 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:20:11,121 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:20:11,152 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:10" (1/1) ... [2021-11-23 17:20:11,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:10" (1/1) ... [2021-11-23 17:20:11,159 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:10" (1/1) ... [2021-11-23 17:20:11,160 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:10" (1/1) ... [2021-11-23 17:20:11,213 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:10" (1/1) ... [2021-11-23 17:20:11,225 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:10" (1/1) ... [2021-11-23 17:20:11,231 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:10" (1/1) ... [2021-11-23 17:20:11,259 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:20:11,273 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:20:11,274 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:20:11,274 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:20:11,289 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:10" (1/1) ... [2021-11-23 17:20:11,299 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:20:11,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:20:11,330 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:20:11,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:20:11,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:20:11,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:20:11,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:20:11,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:20:11,488 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:20:11,490 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:20:12,944 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:20:13,017 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:20:13,022 INFO L158 Benchmark]: Toolchain (without parser) took 2783.89ms. Allocated memory is still 109.1MB. Free memory was 86.8MB in the beginning and 58.2MB in the end (delta: 28.6MB). Peak memory consumption was 54.7MB. Max. memory is 16.1GB. [2021-11-23 17:20:13,024 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 86.0MB. Free memory was 59.2MB in the beginning and 59.1MB in the end (delta: 40.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:20:13,026 INFO L158 Benchmark]: CACSL2BoogieTranslator took 735.09ms. Allocated memory is still 109.1MB. Free memory was 86.6MB in the beginning and 61.8MB in the end (delta: 24.8MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. [2021-11-23 17:20:13,027 INFO L158 Benchmark]: Boogie Procedure Inliner took 142.28ms. Allocated memory is still 109.1MB. Free memory was 61.8MB in the beginning and 54.0MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 17:20:13,029 INFO L158 Benchmark]: Boogie Preprocessor took 152.13ms. Allocated memory is still 109.1MB. Free memory was 54.0MB in the beginning and 78.9MB in the end (delta: -24.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 17:20:13,030 INFO L158 Benchmark]: RCFGBuilder took 1745.98ms. Allocated memory is still 109.1MB. Free memory was 78.9MB in the beginning and 58.2MB in the end (delta: 20.7MB). Peak memory consumption was 48.1MB. Max. memory is 16.1GB. [2021-11-23 17:20:13,040 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 86.0MB. Free memory was 59.2MB in the beginning and 59.1MB in the end (delta: 40.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 735.09ms. Allocated memory is still 109.1MB. Free memory was 86.6MB in the beginning and 61.8MB in the end (delta: 24.8MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 142.28ms. Allocated memory is still 109.1MB. Free memory was 61.8MB in the beginning and 54.0MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 152.13ms. Allocated memory is still 109.1MB. Free memory was 54.0MB in the beginning and 78.9MB in the end (delta: -24.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1745.98ms. Allocated memory is still 109.1MB. Free memory was 78.9MB in the beginning and 58.2MB in the end (delta: 20.7MB). Peak memory consumption was 48.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:20:13,074 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 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_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label01.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl --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 25a329399ac3f0c42bfd0b3752cc2a04cb2662736babf7dc26be2e3a4966221c --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:20:16,040 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:20:16,045 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:20:16,119 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:20:16,120 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:20:16,126 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:20:16,130 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:20:16,137 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:20:16,141 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:20:16,151 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:20:16,152 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:20:16,154 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:20:16,154 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:20:16,156 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:20:16,158 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:20:16,160 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:20:16,168 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:20:16,171 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:20:16,178 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:20:16,187 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:20:16,189 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:20:16,192 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:20:16,196 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:20:16,200 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:20:16,208 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:20:16,208 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:20:16,209 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:20:16,212 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:20:16,213 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:20:16,215 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:20:16,215 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:20:16,216 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:20:16,219 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:20:16,220 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:20:16,222 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:20:16,222 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:20:16,224 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:20:16,224 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:20:16,224 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:20:16,227 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:20:16,228 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:20:16,229 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:20:16,285 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:20:16,285 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:20:16,286 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:20:16,286 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:20:16,288 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:20:16,288 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:20:16,288 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:20:16,289 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:20:16,290 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:20:16,290 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:20:16,291 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:20:16,292 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:20:16,294 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:20:16,294 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:20:16,294 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:20:16,294 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:20:16,295 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:20:16,295 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:20:16,295 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:20:16,295 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:20:16,296 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:20:16,296 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:20:16,296 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:20:16,296 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:20:16,297 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:20:16,297 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:20:16,297 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:20:16,297 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:20:16,298 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:20:16,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:20:16,298 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:20:16,299 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:20:16,299 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:20:16,299 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:20:16,300 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:20:16,300 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:20:16,300 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:20:16,300 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:20:16,301 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_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 25a329399ac3f0c42bfd0b3752cc2a04cb2662736babf7dc26be2e3a4966221c [2021-11-23 17:20:16,755 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:20:16,794 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:20:16,798 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:20:16,800 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:20:16,801 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:20:16,802 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/eca-rers2012/Problem10_label01.c [2021-11-23 17:20:16,890 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/data/a175851c1/1c5925f73c944c8abd46ab69a79c21b6/FLAG8716a6193 [2021-11-23 17:20:17,745 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:20:17,746 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/sv-benchmarks/c/eca-rers2012/Problem10_label01.c [2021-11-23 17:20:17,764 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/data/a175851c1/1c5925f73c944c8abd46ab69a79c21b6/FLAG8716a6193 [2021-11-23 17:20:17,948 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/data/a175851c1/1c5925f73c944c8abd46ab69a79c21b6 [2021-11-23 17:20:17,951 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:20:17,953 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:20:17,955 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:20:17,955 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:20:17,972 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:20:17,973 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:20:17" (1/1) ... [2021-11-23 17:20:17,974 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f5fd6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:17, skipping insertion in model container [2021-11-23 17:20:17,975 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:20:17" (1/1) ... [2021-11-23 17:20:17,985 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:20:18,072 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:20:18,338 WARN L230 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_63b68929-604b-47e3-885b-a1aba9a71807/sv-benchmarks/c/eca-rers2012/Problem10_label01.c[6098,6111] [2021-11-23 17:20:18,701 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:20:18,718 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:20:18,771 WARN L230 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_63b68929-604b-47e3-885b-a1aba9a71807/sv-benchmarks/c/eca-rers2012/Problem10_label01.c[6098,6111] [2021-11-23 17:20:18,865 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:20:18,897 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:20:18,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:18 WrapperNode [2021-11-23 17:20:18,898 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:20:18,899 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:20:18,899 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:20:18,899 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:20:18,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:18" (1/1) ... [2021-11-23 17:20:18,935 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:18" (1/1) ... [2021-11-23 17:20:19,010 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 595 [2021-11-23 17:20:19,011 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:20:19,012 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:20:19,013 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:20:19,014 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:20:19,025 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:18" (1/1) ... [2021-11-23 17:20:19,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:18" (1/1) ... [2021-11-23 17:20:19,038 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:18" (1/1) ... [2021-11-23 17:20:19,049 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:18" (1/1) ... [2021-11-23 17:20:19,110 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:18" (1/1) ... [2021-11-23 17:20:19,133 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:18" (1/1) ... [2021-11-23 17:20:19,143 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:18" (1/1) ... [2021-11-23 17:20:19,153 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:20:19,155 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:20:19,155 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:20:19,155 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:20:19,156 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:18" (1/1) ... [2021-11-23 17:20:19,168 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:20:19,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:20:19,197 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:20:19,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:20:19,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:20:19,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:20:19,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:20:19,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:20:19,376 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:20:19,378 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:20:22,999 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:20:23,011 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:20:23,011 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 17:20:23,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:20:23 BoogieIcfgContainer [2021-11-23 17:20:23,014 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:20:23,016 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:20:23,017 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:20:23,020 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:20:23,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:20:17" (1/3) ... [2021-11-23 17:20:23,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cc42087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:20:23, skipping insertion in model container [2021-11-23 17:20:23,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:18" (2/3) ... [2021-11-23 17:20:23,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cc42087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:20:23, skipping insertion in model container [2021-11-23 17:20:23,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:20:23" (3/3) ... [2021-11-23 17:20:23,024 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label01.c [2021-11-23 17:20:23,033 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:20:23,033 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:20:23,107 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:20:23,116 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 [2021-11-23 17:20:23,116 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 17:20:23,142 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 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) [2021-11-23 17:20:23,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-23 17:20:23,153 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:20:23,154 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:20:23,155 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:20:23,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:20:23,162 INFO L85 PathProgramCache]: Analyzing trace with hash -92557335, now seen corresponding path program 1 times [2021-11-23 17:20:23,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:20:23,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1174050697] [2021-11-23 17:20:23,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:20:23,182 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:20:23,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:20:23,186 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:20:23,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:20:23,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:20:23,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:20:23,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:20:23,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:20:23,697 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:20:23,698 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:20:23,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1174050697] [2021-11-23 17:20:23,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1174050697] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:20:23,699 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:20:23,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 17:20:23,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467716281] [2021-11-23 17:20:23,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:20:23,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:20:23,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:20:23,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:20:23,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:20:23,769 INFO L87 Difference]: Start difference. First operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 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 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 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) [2021-11-23 17:20:27,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:20:27,722 INFO L93 Difference]: Finished difference Result 552 states and 966 transitions. [2021-11-23 17:20:27,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:20:27,734 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 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 53 [2021-11-23 17:20:27,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:20:27,751 INFO L225 Difference]: With dead ends: 552 [2021-11-23 17:20:27,752 INFO L226 Difference]: Without dead ends: 282 [2021-11-23 17:20:27,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:20:27,767 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 129 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-11-23 17:20:27,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 101 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2021-11-23 17:20:27,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2021-11-23 17:20:27,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2021-11-23 17:20:27,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 281 states have (on average 1.4483985765124556) internal successors, (407), 281 states have internal predecessors, (407), 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) [2021-11-23 17:20:27,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 407 transitions. [2021-11-23 17:20:27,862 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 407 transitions. Word has length 53 [2021-11-23 17:20:27,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:20:27,864 INFO L470 AbstractCegarLoop]: Abstraction has 282 states and 407 transitions. [2021-11-23 17:20:27,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 2 states have internal predecessors, (53), 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) [2021-11-23 17:20:27,865 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 407 transitions. [2021-11-23 17:20:27,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-23 17:20:27,881 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:20:27,882 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:20:27,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 17:20:28,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:20:28,102 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:20:28,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:20:28,107 INFO L85 PathProgramCache]: Analyzing trace with hash 53602465, now seen corresponding path program 1 times [2021-11-23 17:20:28,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:20:28,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [890387445] [2021-11-23 17:20:28,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:20:28,111 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:20:28,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:20:28,113 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:20:28,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-23 17:20:28,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:20:28,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:20:28,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:20:28,649 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:20:28,650 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:20:28,650 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:20:28,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [890387445] [2021-11-23 17:20:28,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [890387445] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:20:28,651 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:20:28,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 17:20:28,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120803596] [2021-11-23 17:20:28,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:20:28,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:20:28,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:20:28,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:20:28,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:20:28,654 INFO L87 Difference]: Start difference. First operand 282 states and 407 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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) [2021-11-23 17:20:32,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:20:32,242 INFO L93 Difference]: Finished difference Result 840 states and 1216 transitions. [2021-11-23 17:20:32,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:20:32,249 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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 121 [2021-11-23 17:20:32,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:20:32,258 INFO L225 Difference]: With dead ends: 840 [2021-11-23 17:20:32,258 INFO L226 Difference]: Without dead ends: 560 [2021-11-23 17:20:32,260 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:20:32,262 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 96 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-11-23 17:20:32,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 205 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2021-11-23 17:20:32,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2021-11-23 17:20:32,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2021-11-23 17:20:32,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 559 states have (on average 1.3148479427549196) internal successors, (735), 559 states have internal predecessors, (735), 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) [2021-11-23 17:20:32,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 735 transitions. [2021-11-23 17:20:32,333 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 735 transitions. Word has length 121 [2021-11-23 17:20:32,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:20:32,334 INFO L470 AbstractCegarLoop]: Abstraction has 560 states and 735 transitions. [2021-11-23 17:20:32,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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) [2021-11-23 17:20:32,335 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 735 transitions. [2021-11-23 17:20:32,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-23 17:20:32,338 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:20:32,339 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:20:32,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-23 17:20:32,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:20:32,553 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:20:32,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:20:32,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1176227797, now seen corresponding path program 1 times [2021-11-23 17:20:32,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:20:32,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [734584193] [2021-11-23 17:20:32,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:20:32,556 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:20:32,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:20:32,557 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:20:32,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-23 17:20:32,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:20:32,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:20:32,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:20:33,135 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:20:33,136 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:20:33,136 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:20:33,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [734584193] [2021-11-23 17:20:33,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [734584193] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:20:33,137 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:20:33,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 17:20:33,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942174677] [2021-11-23 17:20:33,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:20:33,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:20:33,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:20:33,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:20:33,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:20:33,139 INFO L87 Difference]: Start difference. First operand 560 states and 735 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 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) [2021-11-23 17:20:36,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:20:36,805 INFO L93 Difference]: Finished difference Result 1396 states and 1872 transitions. [2021-11-23 17:20:36,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:20:36,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 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 130 [2021-11-23 17:20:36,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:20:36,821 INFO L225 Difference]: With dead ends: 1396 [2021-11-23 17:20:36,821 INFO L226 Difference]: Without dead ends: 838 [2021-11-23 17:20:36,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:20:36,825 INFO L933 BasicCegarLoop]: 67 mSDtfsCounter, 70 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-11-23 17:20:36,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 70 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2021-11-23 17:20:36,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2021-11-23 17:20:36,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2021-11-23 17:20:36,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 837 states have (on average 1.2473118279569892) internal successors, (1044), 837 states have internal predecessors, (1044), 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) [2021-11-23 17:20:36,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1044 transitions. [2021-11-23 17:20:36,868 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1044 transitions. Word has length 130 [2021-11-23 17:20:36,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:20:36,869 INFO L470 AbstractCegarLoop]: Abstraction has 838 states and 1044 transitions. [2021-11-23 17:20:36,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 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) [2021-11-23 17:20:36,870 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1044 transitions. [2021-11-23 17:20:36,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-23 17:20:36,873 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:20:36,874 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:20:36,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-23 17:20:37,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:20:37,088 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:20:37,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:20:37,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1458513519, now seen corresponding path program 1 times [2021-11-23 17:20:37,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:20:37,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1631216341] [2021-11-23 17:20:37,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:20:37,091 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:20:37,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:20:37,092 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:20:37,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-23 17:20:37,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:20:37,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 17:20:37,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:20:38,442 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:20:38,442 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:20:38,442 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:20:38,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1631216341] [2021-11-23 17:20:38,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1631216341] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:20:38,443 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:20:38,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 17:20:38,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715126159] [2021-11-23 17:20:38,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:20:38,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:20:38,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:20:38,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:20:38,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:20:38,451 INFO L87 Difference]: Start difference. First operand 838 states and 1044 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 2 states have internal predecessors, (166), 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) [2021-11-23 17:20:41,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:20:41,263 INFO L93 Difference]: Finished difference Result 1813 states and 2235 transitions. [2021-11-23 17:20:41,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:20:41,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 2 states have internal predecessors, (166), 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 166 [2021-11-23 17:20:41,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:20:41,277 INFO L225 Difference]: With dead ends: 1813 [2021-11-23 17:20:41,277 INFO L226 Difference]: Without dead ends: 977 [2021-11-23 17:20:41,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:20:41,281 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 28 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-23 17:20:41,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 82 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-11-23 17:20:41,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2021-11-23 17:20:41,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 977. [2021-11-23 17:20:41,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 976 states have (on average 1.2172131147540983) internal successors, (1188), 976 states have internal predecessors, (1188), 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) [2021-11-23 17:20:41,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1188 transitions. [2021-11-23 17:20:41,316 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1188 transitions. Word has length 166 [2021-11-23 17:20:41,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:20:41,317 INFO L470 AbstractCegarLoop]: Abstraction has 977 states and 1188 transitions. [2021-11-23 17:20:41,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 2 states have internal predecessors, (166), 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) [2021-11-23 17:20:41,318 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1188 transitions. [2021-11-23 17:20:41,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-11-23 17:20:41,322 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:20:41,322 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:20:41,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-23 17:20:41,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:20:41,538 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:20:41,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:20:41,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1081323906, now seen corresponding path program 1 times [2021-11-23 17:20:41,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:20:41,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1238628238] [2021-11-23 17:20:41,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:20:41,541 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:20:41,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:20:41,543 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:20:41,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-23 17:20:41,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:20:41,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:20:41,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:20:42,252 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:20:42,252 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:20:42,252 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:20:42,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1238628238] [2021-11-23 17:20:42,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1238628238] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:20:42,253 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:20:42,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 17:20:42,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543501803] [2021-11-23 17:20:42,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:20:42,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:20:42,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:20:42,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:20:42,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:20:42,255 INFO L87 Difference]: Start difference. First operand 977 states and 1188 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 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) [2021-11-23 17:20:46,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:20:46,306 INFO L93 Difference]: Finished difference Result 2091 states and 2634 transitions. [2021-11-23 17:20:46,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:20:46,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 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 196 [2021-11-23 17:20:46,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:20:46,316 INFO L225 Difference]: With dead ends: 2091 [2021-11-23 17:20:46,316 INFO L226 Difference]: Without dead ends: 1255 [2021-11-23 17:20:46,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:20:46,319 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 67 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-11-23 17:20:46,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 215 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2021-11-23 17:20:46,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2021-11-23 17:20:46,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1116. [2021-11-23 17:20:46,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1116 states, 1115 states have (on average 1.199103139013453) internal successors, (1337), 1115 states have internal predecessors, (1337), 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) [2021-11-23 17:20:46,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1337 transitions. [2021-11-23 17:20:46,357 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1337 transitions. Word has length 196 [2021-11-23 17:20:46,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:20:46,358 INFO L470 AbstractCegarLoop]: Abstraction has 1116 states and 1337 transitions. [2021-11-23 17:20:46,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 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) [2021-11-23 17:20:46,359 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1337 transitions. [2021-11-23 17:20:46,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-11-23 17:20:46,363 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:20:46,363 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:20:46,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-23 17:20:46,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:20:46,577 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:20:46,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:20:46,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1748884334, now seen corresponding path program 1 times [2021-11-23 17:20:46,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:20:46,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [21710968] [2021-11-23 17:20:46,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:20:46,580 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:20:46,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:20:46,581 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:20:46,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-23 17:20:46,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:20:46,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 17:20:46,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:20:48,515 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 32 proven. 143 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:20:48,516 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:20:53,195 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 50 proven. 125 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:20:53,196 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:20:53,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [21710968] [2021-11-23 17:20:53,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [21710968] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:20:53,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [603524119] [2021-11-23 17:20:53,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:20:53,197 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-23 17:20:53,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/cvc4 [2021-11-23 17:20:53,202 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-23 17:20:53,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-11-23 17:20:53,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:20:53,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 17:20:53,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:20:56,337 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 124 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:20:56,337 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:20:58,689 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 156 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:20:58,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [603524119] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:20:58,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1113147729] [2021-11-23 17:20:58,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:20:58,694 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 17:20:58,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:20:58,696 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 17:20:58,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-23 17:20:58,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:20:58,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 17:20:58,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:21:01,292 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 175 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:21:01,292 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:21:01,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1113147729] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:21:01,293 INFO L186 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2021-11-23 17:21:01,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5, 5, 8, 8] total 20 [2021-11-23 17:21:01,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898603374] [2021-11-23 17:21:01,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:21:01,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 17:21:01,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:21:01,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 17:21:01,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2021-11-23 17:21:01,296 INFO L87 Difference]: Start difference. First operand 1116 states and 1337 transitions. Second operand has 7 states, 7 states have (on average 29.285714285714285) internal successors, (205), 6 states have internal predecessors, (205), 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) [2021-11-23 17:21:03,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:21:03,992 INFO L93 Difference]: Finished difference Result 2146 states and 2583 transitions. [2021-11-23 17:21:03,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 17:21:03,993 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 29.285714285714285) internal successors, (205), 6 states have internal predecessors, (205), 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 205 [2021-11-23 17:21:03,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:21:04,001 INFO L225 Difference]: With dead ends: 2146 [2021-11-23 17:21:04,001 INFO L226 Difference]: Without dead ends: 1116 [2021-11-23 17:21:04,003 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1020 GetRequests, 1002 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2021-11-23 17:21:04,004 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 198 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 720 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-11-23 17:21:04,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 22 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 720 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-11-23 17:21:04,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2021-11-23 17:21:04,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 1116. [2021-11-23 17:21:04,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1116 states, 1115 states have (on average 1.1946188340807176) internal successors, (1332), 1115 states have internal predecessors, (1332), 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) [2021-11-23 17:21:04,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1332 transitions. [2021-11-23 17:21:04,055 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1332 transitions. Word has length 205 [2021-11-23 17:21:04,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:21:04,055 INFO L470 AbstractCegarLoop]: Abstraction has 1116 states and 1332 transitions. [2021-11-23 17:21:04,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 29.285714285714285) internal successors, (205), 6 states have internal predecessors, (205), 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) [2021-11-23 17:21:04,056 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1332 transitions. [2021-11-23 17:21:04,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-11-23 17:21:04,060 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:21:04,061 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:21:04,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2021-11-23 17:21:04,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-23 17:21:04,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-23 17:21:04,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:21:04,664 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:21:04,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:21:04,664 INFO L85 PathProgramCache]: Analyzing trace with hash 2061750200, now seen corresponding path program 1 times [2021-11-23 17:21:04,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:21:04,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [138886888] [2021-11-23 17:21:04,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:21:04,666 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:21:04,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:21:04,667 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:21:04,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-23 17:21:04,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:21:04,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 17:21:04,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:21:07,160 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 166 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:21:07,161 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:21:09,020 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 29 proven. 72 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-11-23 17:21:09,020 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:21:09,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [138886888] [2021-11-23 17:21:09,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [138886888] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:21:09,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [360761406] [2021-11-23 17:21:09,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:21:09,021 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-23 17:21:09,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/cvc4 [2021-11-23 17:21:09,022 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-23 17:21:09,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2021-11-23 17:21:09,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:21:09,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 17:21:09,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:21:10,949 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 162 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:21:10,949 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:21:12,506 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 130 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:21:12,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [360761406] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:21:12,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269688059] [2021-11-23 17:21:12,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:21:12,507 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 17:21:12,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:21:12,508 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 17:21:12,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-23 17:21:12,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:21:12,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 17:21:12,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:21:14,428 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 35 proven. 66 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-11-23 17:21:14,428 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:21:15,960 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 35 proven. 66 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-11-23 17:21:15,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1269688059] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:21:15,961 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-23 17:21:15,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 8, 8, 4, 4] total 19 [2021-11-23 17:21:15,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81256739] [2021-11-23 17:21:15,962 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-23 17:21:15,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-23 17:21:15,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:21:15,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-23 17:21:15,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2021-11-23 17:21:15,966 INFO L87 Difference]: Start difference. First operand 1116 states and 1332 transitions. Second operand has 19 states, 19 states have (on average 34.94736842105263) internal successors, (664), 19 states have internal predecessors, (664), 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) [2021-11-23 17:21:38,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:21:38,361 INFO L93 Difference]: Finished difference Result 3556 states and 4283 transitions. [2021-11-23 17:21:38,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-23 17:21:38,367 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 34.94736842105263) internal successors, (664), 19 states have internal predecessors, (664), 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 227 [2021-11-23 17:21:38,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:21:38,367 INFO L225 Difference]: With dead ends: 3556 [2021-11-23 17:21:38,367 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 17:21:38,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1378 GetRequests, 1349 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=233, Invalid=697, Unknown=0, NotChecked=0, Total=930 [2021-11-23 17:21:38,396 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 2212 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 4907 mSolverCounterSat, 726 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2212 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 5633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 726 IncrementalHoareTripleChecker+Valid, 4907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.7s IncrementalHoareTripleChecker+Time [2021-11-23 17:21:38,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2212 Valid, 138 Invalid, 5633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [726 Valid, 4907 Invalid, 0 Unknown, 0 Unchecked, 21.7s Time] [2021-11-23 17:21:38,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 17:21:38,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 17:21:38,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-11-23 17:21:38,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 17:21:38,398 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 227 [2021-11-23 17:21:38,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:21:38,399 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 17:21:38,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 34.94736842105263) internal successors, (664), 19 states have internal predecessors, (664), 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) [2021-11-23 17:21:38,399 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 17:21:38,400 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 17:21:38,403 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 17:21:38,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-23 17:21:38,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2021-11-23 17:21:38,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-23 17:21:39,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:21:39,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 17:21:39,505 INFO L858 garLoopResultBuilder]: For program point L597(line 597) no Hoare annotation was computed. [2021-11-23 17:21:39,506 INFO L858 garLoopResultBuilder]: For program point L564(lines 564 582) no Hoare annotation was computed. [2021-11-23 17:21:39,506 INFO L858 garLoopResultBuilder]: For program point L333(lines 333 582) no Hoare annotation was computed. [2021-11-23 17:21:39,506 INFO L858 garLoopResultBuilder]: For program point L367(lines 367 582) no Hoare annotation was computed. [2021-11-23 17:21:39,506 INFO L858 garLoopResultBuilder]: For program point L301(lines 301 582) no Hoare annotation was computed. [2021-11-23 17:21:39,506 INFO L858 garLoopResultBuilder]: For program point L235(lines 235 582) no Hoare annotation was computed. [2021-11-23 17:21:39,506 INFO L858 garLoopResultBuilder]: For program point L202-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,507 INFO L858 garLoopResultBuilder]: For program point L169-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,507 INFO L858 garLoopResultBuilder]: For program point L136-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,507 INFO L858 garLoopResultBuilder]: For program point L103-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,507 INFO L858 garLoopResultBuilder]: For program point L70-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,507 INFO L858 garLoopResultBuilder]: For program point L37-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,507 INFO L858 garLoopResultBuilder]: For program point L533(lines 533 582) no Hoare annotation was computed. [2021-11-23 17:21:39,508 INFO L858 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-11-23 17:21:39,508 INFO L858 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-11-23 17:21:39,508 INFO L858 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-11-23 17:21:39,508 INFO L858 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-11-23 17:21:39,508 INFO L858 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-11-23 17:21:39,509 INFO L858 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-11-23 17:21:39,512 INFO L858 garLoopResultBuilder]: For program point L567(lines 567 582) no Hoare annotation was computed. [2021-11-23 17:21:39,512 INFO L858 garLoopResultBuilder]: For program point L435(lines 435 582) no Hoare annotation was computed. [2021-11-23 17:21:39,512 INFO L858 garLoopResultBuilder]: For program point L336(lines 336 582) no Hoare annotation was computed. [2021-11-23 17:21:39,513 INFO L858 garLoopResultBuilder]: For program point L270(lines 270 582) no Hoare annotation was computed. [2021-11-23 17:21:39,513 INFO L858 garLoopResultBuilder]: For program point L403(lines 403 582) no Hoare annotation was computed. [2021-11-23 17:21:39,513 INFO L858 garLoopResultBuilder]: For program point L370(lines 370 582) no Hoare annotation was computed. [2021-11-23 17:21:39,513 INFO L858 garLoopResultBuilder]: For program point L205-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,514 INFO L858 garLoopResultBuilder]: For program point L172-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,514 INFO L858 garLoopResultBuilder]: For program point L139-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,515 INFO L858 garLoopResultBuilder]: For program point L106-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,515 INFO L858 garLoopResultBuilder]: For program point L73-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,515 INFO L858 garLoopResultBuilder]: For program point L40-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,515 INFO L858 garLoopResultBuilder]: For program point L536(lines 536 582) no Hoare annotation was computed. [2021-11-23 17:21:39,515 INFO L858 garLoopResultBuilder]: For program point L503(lines 503 582) no Hoare annotation was computed. [2021-11-23 17:21:39,515 INFO L858 garLoopResultBuilder]: For program point L470(lines 470 582) no Hoare annotation was computed. [2021-11-23 17:21:39,516 INFO L858 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-11-23 17:21:39,516 INFO L858 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-11-23 17:21:39,516 INFO L858 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-11-23 17:21:39,516 INFO L858 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-11-23 17:21:39,516 INFO L858 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-11-23 17:21:39,516 INFO L858 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-11-23 17:21:39,517 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 582) no Hoare annotation was computed. [2021-11-23 17:21:39,517 INFO L858 garLoopResultBuilder]: For program point L306(lines 306 582) no Hoare annotation was computed. [2021-11-23 17:21:39,517 INFO L858 garLoopResultBuilder]: For program point L241(lines 241 582) no Hoare annotation was computed. [2021-11-23 17:21:39,517 INFO L858 garLoopResultBuilder]: For program point L208-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,517 INFO L858 garLoopResultBuilder]: For program point L175-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,518 INFO L858 garLoopResultBuilder]: For program point L142-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,518 INFO L858 garLoopResultBuilder]: For program point L109-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,518 INFO L858 garLoopResultBuilder]: For program point L76-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,518 INFO L858 garLoopResultBuilder]: For program point L43-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,518 INFO L858 garLoopResultBuilder]: For program point L539(lines 539 582) no Hoare annotation was computed. [2021-11-23 17:21:39,518 INFO L858 garLoopResultBuilder]: For program point L440(lines 440 582) no Hoare annotation was computed. [2021-11-23 17:21:39,519 INFO L858 garLoopResultBuilder]: For program point L275(lines 275 582) no Hoare annotation was computed. [2021-11-23 17:21:39,519 INFO L858 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-11-23 17:21:39,519 INFO L858 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-11-23 17:21:39,519 INFO L858 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-11-23 17:21:39,519 INFO L858 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-11-23 17:21:39,519 INFO L858 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-11-23 17:21:39,520 INFO L858 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-11-23 17:21:39,520 INFO L858 garLoopResultBuilder]: For program point L573(lines 573 582) no Hoare annotation was computed. [2021-11-23 17:21:39,520 INFO L858 garLoopResultBuilder]: For program point L408(lines 408 582) no Hoare annotation was computed. [2021-11-23 17:21:39,520 INFO L858 garLoopResultBuilder]: For program point L375(lines 375 582) no Hoare annotation was computed. [2021-11-23 17:21:39,520 INFO L858 garLoopResultBuilder]: For program point L475(lines 475 582) no Hoare annotation was computed. [2021-11-23 17:21:39,520 INFO L858 garLoopResultBuilder]: For program point L211-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,521 INFO L858 garLoopResultBuilder]: For program point L178-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,521 INFO L858 garLoopResultBuilder]: For program point L145-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,521 INFO L858 garLoopResultBuilder]: For program point L112-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,521 INFO L858 garLoopResultBuilder]: For program point L79-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,521 INFO L858 garLoopResultBuilder]: For program point L46-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,521 INFO L858 garLoopResultBuilder]: For program point L509(lines 509 582) no Hoare annotation was computed. [2021-11-23 17:21:39,522 INFO L858 garLoopResultBuilder]: For program point L311(lines 311 582) no Hoare annotation was computed. [2021-11-23 17:21:39,522 INFO L858 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-11-23 17:21:39,522 INFO L858 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-11-23 17:21:39,522 INFO L858 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-11-23 17:21:39,522 INFO L858 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-11-23 17:21:39,523 INFO L858 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-11-23 17:21:39,523 INFO L858 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-11-23 17:21:39,523 INFO L858 garLoopResultBuilder]: For program point L345(lines 345 582) no Hoare annotation was computed. [2021-11-23 17:21:39,523 INFO L858 garLoopResultBuilder]: For program point L246(lines 246 582) no Hoare annotation was computed. [2021-11-23 17:21:39,523 INFO L858 garLoopResultBuilder]: For program point L544(lines 544 582) no Hoare annotation was computed. [2021-11-23 17:21:39,523 INFO L858 garLoopResultBuilder]: For program point L181-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,524 INFO L858 garLoopResultBuilder]: For program point L148-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,524 INFO L858 garLoopResultBuilder]: For program point L115-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,524 INFO L858 garLoopResultBuilder]: For program point L82-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,524 INFO L858 garLoopResultBuilder]: For program point L49-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,524 INFO L858 garLoopResultBuilder]: For program point L446(lines 446 582) no Hoare annotation was computed. [2021-11-23 17:21:39,524 INFO L858 garLoopResultBuilder]: For program point L413(lines 413 582) no Hoare annotation was computed. [2021-11-23 17:21:39,525 INFO L858 garLoopResultBuilder]: For program point L380(lines 380 582) no Hoare annotation was computed. [2021-11-23 17:21:39,525 INFO L858 garLoopResultBuilder]: For program point L281(lines 281 582) no Hoare annotation was computed. [2021-11-23 17:21:39,525 INFO L858 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-11-23 17:21:39,525 INFO L858 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-11-23 17:21:39,525 INFO L858 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-11-23 17:21:39,525 INFO L858 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-11-23 17:21:39,526 INFO L858 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-11-23 17:21:39,526 INFO L858 garLoopResultBuilder]: For program point L579(lines 579 582) no Hoare annotation was computed. [2021-11-23 17:21:39,526 INFO L858 garLoopResultBuilder]: For program point L249(lines 249 582) no Hoare annotation was computed. [2021-11-23 17:21:39,526 INFO L858 garLoopResultBuilder]: For program point L514(lines 514 582) no Hoare annotation was computed. [2021-11-23 17:21:39,526 INFO L858 garLoopResultBuilder]: For program point L481(lines 481 582) no Hoare annotation was computed. [2021-11-23 17:21:39,527 INFO L858 garLoopResultBuilder]: For program point L316(lines 316 582) no Hoare annotation was computed. [2021-11-23 17:21:39,528 INFO L858 garLoopResultBuilder]: For program point L184-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,528 INFO L858 garLoopResultBuilder]: For program point L151-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,528 INFO L858 garLoopResultBuilder]: For program point L118-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,528 INFO L858 garLoopResultBuilder]: For program point L85-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,528 INFO L858 garLoopResultBuilder]: For program point L52-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,529 INFO L858 garLoopResultBuilder]: For program point L350(lines 350 582) no Hoare annotation was computed. [2021-11-23 17:21:39,529 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-23 17:21:39,529 INFO L858 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-11-23 17:21:39,531 INFO L858 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-11-23 17:21:39,531 INFO L858 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-11-23 17:21:39,531 INFO L858 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-11-23 17:21:39,531 INFO L858 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-11-23 17:21:39,532 INFO L854 garLoopResultBuilder]: At program point L583(lines 30 584) the Hoare annotation is: (let ((.cse0 (= (_ bv14 32) ~a4~0)) (.cse1 (= (_ bv0 32) ~a12~0))) (or (and .cse0 .cse1 (= (_ bv8 32) ~a19~0)) (and .cse0 .cse1 (= (_ bv1 32) ~a10~0)) (and .cse0 .cse1 (or (not (bvsge (_ bv218 32) ~a1~0)) (not (bvslt (_ bv38 32) ~a1~0)))) (and (= ~a19~0 (_ bv9 32)) .cse0 .cse1) (and .cse0 .cse1 (= (_ bv2 32) ~a10~0)))) [2021-11-23 17:21:39,532 INFO L858 garLoopResultBuilder]: For program point L550(lines 550 582) no Hoare annotation was computed. [2021-11-23 17:21:39,532 INFO L858 garLoopResultBuilder]: For program point L418(lines 418 582) no Hoare annotation was computed. [2021-11-23 17:21:39,532 INFO L858 garLoopResultBuilder]: For program point L385(lines 385 582) no Hoare annotation was computed. [2021-11-23 17:21:39,532 INFO L858 garLoopResultBuilder]: For program point L220(lines 220 582) no Hoare annotation was computed. [2021-11-23 17:21:39,533 INFO L858 garLoopResultBuilder]: For program point L187-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,533 INFO L858 garLoopResultBuilder]: For program point L154-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,533 INFO L858 garLoopResultBuilder]: For program point L121-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,533 INFO L858 garLoopResultBuilder]: For program point L88-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,534 INFO L858 garLoopResultBuilder]: For program point L55-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,534 INFO L858 garLoopResultBuilder]: For program point L452(lines 452 582) no Hoare annotation was computed. [2021-11-23 17:21:39,534 INFO L858 garLoopResultBuilder]: For program point L287(lines 287 582) no Hoare annotation was computed. [2021-11-23 17:21:39,534 INFO L858 garLoopResultBuilder]: For program point L254(lines 254 582) no Hoare annotation was computed. [2021-11-23 17:21:39,534 INFO L858 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-11-23 17:21:39,535 INFO L858 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-11-23 17:21:39,535 INFO L858 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-11-23 17:21:39,535 INFO L858 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-11-23 17:21:39,535 INFO L858 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-11-23 17:21:39,535 INFO L858 garLoopResultBuilder]: For program point L519(lines 519 582) no Hoare annotation was computed. [2021-11-23 17:21:39,536 INFO L858 garLoopResultBuilder]: For program point L486(lines 486 582) no Hoare annotation was computed. [2021-11-23 17:21:39,536 INFO L861 garLoopResultBuilder]: At program point L586(lines 586 602) the Hoare annotation is: true [2021-11-23 17:21:39,536 INFO L858 garLoopResultBuilder]: For program point L388(lines 388 582) no Hoare annotation was computed. [2021-11-23 17:21:39,536 INFO L858 garLoopResultBuilder]: For program point L355(lines 355 582) no Hoare annotation was computed. [2021-11-23 17:21:39,536 INFO L858 garLoopResultBuilder]: For program point L322(lines 322 582) no Hoare annotation was computed. [2021-11-23 17:21:39,536 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 17:21:39,537 INFO L858 garLoopResultBuilder]: For program point L190-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,537 INFO L858 garLoopResultBuilder]: For program point L157-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,537 INFO L858 garLoopResultBuilder]: For program point L124-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,537 INFO L858 garLoopResultBuilder]: For program point L91-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,537 INFO L858 garLoopResultBuilder]: For program point L58-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,537 INFO L858 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-11-23 17:21:39,538 INFO L858 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-11-23 17:21:39,538 INFO L858 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-11-23 17:21:39,538 INFO L858 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-11-23 17:21:39,538 INFO L858 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-11-23 17:21:39,538 INFO L858 garLoopResultBuilder]: For program point L555(lines 555 582) no Hoare annotation was computed. [2021-11-23 17:21:39,538 INFO L858 garLoopResultBuilder]: For program point L225(lines 225 582) no Hoare annotation was computed. [2021-11-23 17:21:39,539 INFO L858 garLoopResultBuilder]: For program point L424(lines 424 582) no Hoare annotation was computed. [2021-11-23 17:21:39,539 INFO L858 garLoopResultBuilder]: For program point L259(lines 259 582) no Hoare annotation was computed. [2021-11-23 17:21:39,539 INFO L858 garLoopResultBuilder]: For program point L193-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,539 INFO L858 garLoopResultBuilder]: For program point L160-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,539 INFO L858 garLoopResultBuilder]: For program point L127-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,539 INFO L858 garLoopResultBuilder]: For program point L94-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,540 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-23 17:21:39,540 INFO L858 garLoopResultBuilder]: For program point L61-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,540 INFO L858 garLoopResultBuilder]: For program point L524(lines 524 582) no Hoare annotation was computed. [2021-11-23 17:21:39,540 INFO L858 garLoopResultBuilder]: For program point L491(lines 491 582) no Hoare annotation was computed. [2021-11-23 17:21:39,540 INFO L858 garLoopResultBuilder]: For program point L458(lines 458 582) no Hoare annotation was computed. [2021-11-23 17:21:39,540 INFO L858 garLoopResultBuilder]: For program point L293(lines 293 582) no Hoare annotation was computed. [2021-11-23 17:21:39,541 INFO L858 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-11-23 17:21:39,541 INFO L858 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-11-23 17:21:39,541 INFO L858 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-11-23 17:21:39,541 INFO L858 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-11-23 17:21:39,541 INFO L858 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-11-23 17:21:39,541 INFO L858 garLoopResultBuilder]: For program point L558(lines 558 582) no Hoare annotation was computed. [2021-11-23 17:21:39,542 INFO L858 garLoopResultBuilder]: For program point L393(lines 393 582) no Hoare annotation was computed. [2021-11-23 17:21:39,542 INFO L858 garLoopResultBuilder]: For program point L327(lines 327 582) no Hoare annotation was computed. [2021-11-23 17:21:39,542 INFO L854 garLoopResultBuilder]: At program point L592-2(lines 592 601) the Hoare annotation is: (let ((.cse0 (= (_ bv14 32) ~a4~0)) (.cse1 (= (_ bv0 32) ~a12~0))) (or (and .cse0 .cse1 (= (_ bv8 32) ~a19~0)) (and .cse0 .cse1 (= (_ bv1 32) ~a10~0)) (and .cse0 .cse1 (or (not (bvsge (_ bv218 32) ~a1~0)) (not (bvslt (_ bv38 32) ~a1~0)))) (and (= ~a19~0 (_ bv9 32)) .cse0 .cse1) (and .cse0 .cse1 (= (_ bv2 32) ~a10~0)))) [2021-11-23 17:21:39,542 INFO L858 garLoopResultBuilder]: For program point L361(lines 361 582) no Hoare annotation was computed. [2021-11-23 17:21:39,542 INFO L858 garLoopResultBuilder]: For program point L196-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,543 INFO L858 garLoopResultBuilder]: For program point L163-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,543 INFO L858 garLoopResultBuilder]: For program point L130-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,543 INFO L858 garLoopResultBuilder]: For program point L97-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,543 INFO L858 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-11-23 17:21:39,543 INFO L858 garLoopResultBuilder]: For program point L64-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,543 INFO L858 garLoopResultBuilder]: For program point L31-2(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,544 INFO L858 garLoopResultBuilder]: For program point L527(lines 527 582) no Hoare annotation was computed. [2021-11-23 17:21:39,544 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 582) no Hoare annotation was computed. [2021-11-23 17:21:39,544 INFO L858 garLoopResultBuilder]: For program point L230(lines 230 582) no Hoare annotation was computed. [2021-11-23 17:21:39,544 INFO L858 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-11-23 17:21:39,544 INFO L858 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-11-23 17:21:39,544 INFO L858 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-11-23 17:21:39,545 INFO L858 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-11-23 17:21:39,545 INFO L858 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-11-23 17:21:39,545 INFO L858 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-11-23 17:21:39,545 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-23 17:21:39,545 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 173) no Hoare annotation was computed. [2021-11-23 17:21:39,545 INFO L858 garLoopResultBuilder]: For program point L429(lines 429 582) no Hoare annotation was computed. [2021-11-23 17:21:39,546 INFO L858 garLoopResultBuilder]: For program point L330(lines 330 582) no Hoare annotation was computed. [2021-11-23 17:21:39,546 INFO L858 garLoopResultBuilder]: For program point L264(lines 264 582) no Hoare annotation was computed. [2021-11-23 17:21:39,546 INFO L858 garLoopResultBuilder]: For program point L364(lines 364 582) no Hoare annotation was computed. [2021-11-23 17:21:39,546 INFO L858 garLoopResultBuilder]: For program point L199-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,546 INFO L858 garLoopResultBuilder]: For program point L166-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,546 INFO L858 garLoopResultBuilder]: For program point L133-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,547 INFO L858 garLoopResultBuilder]: For program point L100-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,547 INFO L858 garLoopResultBuilder]: For program point L67-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,547 INFO L858 garLoopResultBuilder]: For program point L34-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:21:39,547 INFO L858 garLoopResultBuilder]: For program point L497(lines 497 582) no Hoare annotation was computed. [2021-11-23 17:21:39,547 INFO L858 garLoopResultBuilder]: For program point L464(lines 464 582) no Hoare annotation was computed. [2021-11-23 17:21:39,547 INFO L858 garLoopResultBuilder]: For program point L398(lines 398 582) no Hoare annotation was computed. [2021-11-23 17:21:39,548 INFO L858 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-11-23 17:21:39,548 INFO L858 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-11-23 17:21:39,548 INFO L858 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-11-23 17:21:39,548 INFO L858 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-11-23 17:21:39,548 INFO L858 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-11-23 17:21:39,548 INFO L858 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-11-23 17:21:39,552 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:21:39,554 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 17:21:39,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 05:21:39 BoogieIcfgContainer [2021-11-23 17:21:39,604 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 17:21:39,604 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 17:21:39,605 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 17:21:39,605 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 17:21:39,605 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:20:23" (3/4) ... [2021-11-23 17:21:39,609 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 17:21:39,639 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-11-23 17:21:39,646 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-23 17:21:39,647 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 17:21:39,649 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 17:21:39,800 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/witness.graphml [2021-11-23 17:21:39,801 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 17:21:39,802 INFO L158 Benchmark]: Toolchain (without parser) took 81848.57ms. Allocated memory was 71.3MB in the beginning and 146.8MB in the end (delta: 75.5MB). Free memory was 47.5MB in the beginning and 52.6MB in the end (delta: -5.2MB). Peak memory consumption was 70.0MB. Max. memory is 16.1GB. [2021-11-23 17:21:39,802 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 54.5MB. Free memory was 34.9MB in the beginning and 34.8MB in the end (delta: 41.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:21:39,803 INFO L158 Benchmark]: CACSL2BoogieTranslator took 942.93ms. Allocated memory is still 71.3MB. Free memory was 47.2MB in the beginning and 52.0MB in the end (delta: -4.8MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. [2021-11-23 17:21:39,803 INFO L158 Benchmark]: Boogie Procedure Inliner took 112.13ms. Allocated memory is still 71.3MB. Free memory was 52.0MB in the beginning and 46.5MB in the end (delta: 5.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:21:39,804 INFO L158 Benchmark]: Boogie Preprocessor took 142.03ms. Allocated memory is still 71.3MB. Free memory was 46.5MB in the beginning and 42.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:21:39,804 INFO L158 Benchmark]: RCFGBuilder took 3859.72ms. Allocated memory was 71.3MB in the beginning and 100.7MB in the end (delta: 29.4MB). Free memory was 42.3MB in the beginning and 55.4MB in the end (delta: -13.1MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2021-11-23 17:21:39,805 INFO L158 Benchmark]: TraceAbstraction took 76587.39ms. Allocated memory was 100.7MB in the beginning and 146.8MB in the end (delta: 46.1MB). Free memory was 54.9MB in the beginning and 68.4MB in the end (delta: -13.4MB). Peak memory consumption was 34.2MB. Max. memory is 16.1GB. [2021-11-23 17:21:39,805 INFO L158 Benchmark]: Witness Printer took 196.56ms. Allocated memory is still 146.8MB. Free memory was 67.3MB in the beginning and 52.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 17:21:39,808 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 54.5MB. Free memory was 34.9MB in the beginning and 34.8MB in the end (delta: 41.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 942.93ms. Allocated memory is still 71.3MB. Free memory was 47.2MB in the beginning and 52.0MB in the end (delta: -4.8MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 112.13ms. Allocated memory is still 71.3MB. Free memory was 52.0MB in the beginning and 46.5MB in the end (delta: 5.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 142.03ms. Allocated memory is still 71.3MB. Free memory was 46.5MB in the beginning and 42.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 3859.72ms. Allocated memory was 71.3MB in the beginning and 100.7MB in the end (delta: 29.4MB). Free memory was 42.3MB in the beginning and 55.4MB in the end (delta: -13.1MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 76587.39ms. Allocated memory was 100.7MB in the beginning and 146.8MB in the end (delta: 46.1MB). Free memory was 54.9MB in the beginning and 68.4MB in the end (delta: -13.4MB). Peak memory consumption was 34.2MB. Max. memory is 16.1GB. * Witness Printer took 196.56ms. Allocated memory is still 146.8MB. Free memory was 67.3MB in the beginning and 52.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 173]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 206 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 76.4s, OverallIterations: 7, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 43.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2800 SdHoareTripleChecker+Valid, 42.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2800 mSDsluCounter, 833 SdHoareTripleChecker+Invalid, 37.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 155 mSDsCounter, 1079 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7460 IncrementalHoareTripleChecker+Invalid, 8539 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1079 mSolverCounterUnsat, 678 mSDtfsCounter, 7460 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3059 GetRequests, 3007 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1116occurred in iteration=5, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 139 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 49 NumberOfFragments, 115 HoareAnnotationTreeSize, 3 FomulaSimplifications, 152 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 620 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 28.1s InterpolantComputationTime, 1962 NumberOfCodeBlocks, 1962 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 3037 ConstructedInterpolants, 0 QuantifiedInterpolants, 20577 SizeOfPredicates, 32 NumberOfNonLiveVariables, 2472 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 16 InterpolantComputations, 6 PerfectInterpolantSequences, 1439/2187 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: (((((14bv32 == a4 && 0bv32 == a12) && 8bv32 == a19) || ((14bv32 == a4 && 0bv32 == a12) && 1bv32 == a10)) || ((14bv32 == a4 && 0bv32 == a12) && (!~bvsge32(218bv32, a1) || !~bvslt32(38bv32, a1)))) || ((a19 == 9bv32 && 14bv32 == a4) && 0bv32 == a12)) || ((14bv32 == a4 && 0bv32 == a12) && 2bv32 == a10) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((((14bv32 == a4 && 0bv32 == a12) && 8bv32 == a19) || ((14bv32 == a4 && 0bv32 == a12) && 1bv32 == a10)) || ((14bv32 == a4 && 0bv32 == a12) && (!~bvsge32(218bv32, a1) || !~bvslt32(38bv32, a1)))) || ((a19 == 9bv32 && 14bv32 == a4) && 0bv32 == a12)) || ((14bv32 == a4 && 0bv32 == a12) && 2bv32 == a10) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-23 17:21:39,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b68929-604b-47e3-885b-a1aba9a71807/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE