./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/gj2007.c.i.p+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-lit/gj2007.c.i.p+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8 --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 2b1624bcee836a6ef84f0c5a49c428b8da4ed56b ........................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-lit/gj2007.c.i.p+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8 --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 2b1624bcee836a6ef84f0c5a49c428b8da4ed56b ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 06:47:12,618 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 06:47:12,620 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 06:47:12,649 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 06:47:12,650 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 06:47:12,651 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 06:47:12,653 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 06:47:12,655 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 06:47:12,657 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 06:47:12,659 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 06:47:12,660 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 06:47:12,661 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 06:47:12,662 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 06:47:12,663 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 06:47:12,665 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 06:47:12,666 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 06:47:12,667 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 06:47:12,668 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 06:47:12,673 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 06:47:12,676 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 06:47:12,677 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 06:47:12,683 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 06:47:12,685 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 06:47:12,686 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 06:47:12,689 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 06:47:12,690 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 06:47:12,690 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 06:47:12,691 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 06:47:12,692 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 06:47:12,693 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 06:47:12,693 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 06:47:12,694 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 06:47:12,695 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 06:47:12,696 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 06:47:12,697 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 06:47:12,697 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 06:47:12,698 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 06:47:12,698 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 06:47:12,699 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 06:47:12,700 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 06:47:12,701 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 06:47:12,702 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 06:47:12,725 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 06:47:12,725 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 06:47:12,726 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 06:47:12,726 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 06:47:12,726 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 06:47:12,727 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 06:47:12,727 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 06:47:12,727 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 06:47:12,727 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 06:47:12,727 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 06:47:12,728 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 06:47:12,728 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 06:47:12,728 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 06:47:12,728 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 06:47:12,728 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 06:47:12,729 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 06:47:12,729 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 06:47:12,730 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 06:47:12,730 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 06:47:12,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 06:47:12,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 06:47:12,730 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 06:47:12,730 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 06:47:12,731 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 06:47:12,731 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 06:47:12,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 06:47:12,731 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 06:47:12,731 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 06:47:12,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 06:47:12,732 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 06:47:12,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:47:12,732 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 06:47:12,732 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 06:47:12,733 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 06:47:12,733 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 06:47:12,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 06:47:12,733 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 06:47:12,733 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 06:47:12,733 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 06:47:12,734 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_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b1624bcee836a6ef84f0c5a49c428b8da4ed56b [2021-10-13 06:47:13,007 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 06:47:13,029 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 06:47:13,031 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 06:47:13,033 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 06:47:13,034 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 06:47:13,035 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/loop-lit/gj2007.c.i.p+nlh-reducer.c [2021-10-13 06:47:13,119 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/data/9e1439cab/c55f565596fe479e812c2ee2ead1eae0/FLAG64e81adfe [2021-10-13 06:47:13,581 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 06:47:13,593 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/sv-benchmarks/c/loop-lit/gj2007.c.i.p+nlh-reducer.c [2021-10-13 06:47:13,610 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/data/9e1439cab/c55f565596fe479e812c2ee2ead1eae0/FLAG64e81adfe [2021-10-13 06:47:13,936 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/data/9e1439cab/c55f565596fe479e812c2ee2ead1eae0 [2021-10-13 06:47:13,939 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 06:47:13,942 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 06:47:13,947 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 06:47:13,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 06:47:13,951 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 06:47:13,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:47:13" (1/1) ... [2021-10-13 06:47:13,953 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31cfca54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:47:13, skipping insertion in model container [2021-10-13 06:47:13,953 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:47:13" (1/1) ... [2021-10-13 06:47:13,963 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 06:47:14,020 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 06:47:14,282 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/sv-benchmarks/c/loop-lit/gj2007.c.i.p+nlh-reducer.c[6448,6461] [2021-10-13 06:47:14,383 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:47:14,392 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 06:47:14,438 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/sv-benchmarks/c/loop-lit/gj2007.c.i.p+nlh-reducer.c[6448,6461] [2021-10-13 06:47:14,503 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:47:14,518 INFO L208 MainTranslator]: Completed translation [2021-10-13 06:47:14,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:47:14 WrapperNode [2021-10-13 06:47:14,518 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 06:47:14,519 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 06:47:14,519 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 06:47:14,519 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 06:47:14,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:47:14" (1/1) ... [2021-10-13 06:47:14,537 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:47:14" (1/1) ... [2021-10-13 06:47:14,592 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 06:47:14,596 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 06:47:14,596 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 06:47:14,597 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 06:47:14,604 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:47:14" (1/1) ... [2021-10-13 06:47:14,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:47:14" (1/1) ... [2021-10-13 06:47:14,608 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:47:14" (1/1) ... [2021-10-13 06:47:14,608 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:47:14" (1/1) ... [2021-10-13 06:47:14,617 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:47:14" (1/1) ... [2021-10-13 06:47:14,625 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:47:14" (1/1) ... [2021-10-13 06:47:14,632 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:47:14" (1/1) ... [2021-10-13 06:47:14,636 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 06:47:14,656 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 06:47:14,656 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 06:47:14,657 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 06:47:14,657 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:47:14" (1/1) ... [2021-10-13 06:47:14,665 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:47:14,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 06:47:14,689 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 06:47:14,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 06:47:14,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 06:47:14,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 06:47:14,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 06:47:14,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 06:47:16,100 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 06:47:16,101 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-13 06:47:16,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:47:16 BoogieIcfgContainer [2021-10-13 06:47:16,105 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 06:47:16,109 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 06:47:16,110 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 06:47:16,113 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 06:47:16,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:47:13" (1/3) ... [2021-10-13 06:47:16,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3052a9ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:47:16, skipping insertion in model container [2021-10-13 06:47:16,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:47:14" (2/3) ... [2021-10-13 06:47:16,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3052a9ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:47:16, skipping insertion in model container [2021-10-13 06:47:16,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:47:16" (3/3) ... [2021-10-13 06:47:16,116 INFO L111 eAbstractionObserver]: Analyzing ICFG gj2007.c.i.p+nlh-reducer.c [2021-10-13 06:47:16,127 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 06:47:16,127 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 06:47:16,188 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 06:47:16,197 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, mConcurrency=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 [2021-10-13 06:47:16,198 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 06:47:16,218 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 72 states have (on average 1.9722222222222223) internal successors, (142), 73 states have internal predecessors, (142), 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) [2021-10-13 06:47:16,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-10-13 06:47:16,229 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:47:16,229 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:47:16,231 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:47:16,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:47:16,237 INFO L82 PathProgramCache]: Analyzing trace with hash 1453360743, now seen corresponding path program 1 times [2021-10-13 06:47:16,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 06:47:16,251 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502956277] [2021-10-13 06:47:16,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:47:16,252 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 06:47:16,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:47:19,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:47:19,744 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 06:47:19,744 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502956277] [2021-10-13 06:47:19,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502956277] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 06:47:19,745 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:47:19,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [69] imperfect sequences [] total 69 [2021-10-13 06:47:19,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602189971] [2021-10-13 06:47:19,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2021-10-13 06:47:19,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 06:47:19,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2021-10-13 06:47:19,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=204, Invalid=4626, Unknown=0, NotChecked=0, Total=4830 [2021-10-13 06:47:19,778 INFO L87 Difference]: Start difference. First operand has 74 states, 72 states have (on average 1.9722222222222223) internal successors, (142), 73 states have internal predecessors, (142), 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 70 states, 70 states have (on average 1.0142857142857142) internal successors, (71), 69 states have internal predecessors, (71), 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) [2021-10-13 06:47:22,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:47:22,026 INFO L93 Difference]: Finished difference Result 80 states and 149 transitions. [2021-10-13 06:47:22,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-10-13 06:47:22,038 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 70 states have (on average 1.0142857142857142) internal successors, (71), 69 states have internal predecessors, (71), 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 71 [2021-10-13 06:47:22,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:47:22,050 INFO L225 Difference]: With dead ends: 80 [2021-10-13 06:47:22,050 INFO L226 Difference]: Without dead ends: 73 [2021-10-13 06:47:22,057 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2456.2ms TimeCoverageRelationStatistics Valid=204, Invalid=4626, Unknown=0, NotChecked=0, Total=4830 [2021-10-13 06:47:22,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-10-13 06:47:22,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2021-10-13 06:47:22,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 1.0138888888888888) internal successors, (73), 72 states have internal predecessors, (73), 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) [2021-10-13 06:47:22,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 73 transitions. [2021-10-13 06:47:22,109 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 73 transitions. Word has length 71 [2021-10-13 06:47:22,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:47:22,111 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 73 transitions. [2021-10-13 06:47:22,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 1.0142857142857142) internal successors, (71), 69 states have internal predecessors, (71), 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) [2021-10-13 06:47:22,112 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 73 transitions. [2021-10-13 06:47:22,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-10-13 06:47:22,118 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:47:22,118 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:47:22,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 06:47:22,119 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:47:22,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:47:22,124 INFO L82 PathProgramCache]: Analyzing trace with hash 2113862019, now seen corresponding path program 1 times [2021-10-13 06:47:22,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 06:47:22,124 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705712465] [2021-10-13 06:47:22,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:47:22,125 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 06:47:22,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:47:24,826 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:47:24,826 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 06:47:24,827 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705712465] [2021-10-13 06:47:24,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705712465] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 06:47:24,827 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [999256050] [2021-10-13 06:47:24,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:47:24,828 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 06:47:24,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 06:47:24,843 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 06:47:24,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 06:47:24,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:47:24,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 71 conjunts are in the unsatisfiable core [2021-10-13 06:47:24,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:47:25,908 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:47:25,908 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:47:33,296 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:47:33,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [999256050] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 06:47:33,296 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [212188863] [2021-10-13 06:47:33,332 INFO L159 IcfgInterpreter]: Started Sifa with 72 locations of interest [2021-10-13 06:47:33,333 INFO L166 IcfgInterpreter]: Building call graph [2021-10-13 06:47:33,341 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-13 06:47:33,351 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-13 06:47:33,352 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-13 06:47:33,476 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:47:33,479 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 06:47:33,484 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:47:33,485 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 06:47:33,486 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 06:47:33,486 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:47:33,487 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-13 06:47:33,489 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-10-13 06:47:33,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:47:33,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:47:33,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:47:33,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-13 06:47:33,536 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:47:33,536 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-13 06:47:33,540 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:47:33,541 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-13 06:47:33,541 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-13 06:47:33,543 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:47:33,563 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:47:33,565 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:47:33,568 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-10-13 06:47:33,569 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-13 06:47:33,569 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:128, output treesize:131 [2021-10-13 06:47:33,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 06:47:33,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 06:47:33,796 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: No corresponding IProgramVar for |v_#valid_10| at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.constructTermVarsProc(BasicPredicateFactory.java:92) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.newPredicate(BasicPredicateFactory.java:81) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.predicate(SymbolicTools.java:174) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) 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) [2021-10-13 06:47:33,801 INFO L168 Benchmark]: Toolchain (without parser) took 19857.71 ms. Allocated memory was 100.7 MB in the beginning and 186.6 MB in the end (delta: 86.0 MB). Free memory was 65.2 MB in the beginning and 84.7 MB in the end (delta: -19.5 MB). Peak memory consumption was 67.8 MB. Max. memory is 16.1 GB. [2021-10-13 06:47:33,802 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 100.7 MB. Free memory was 74.5 MB in the beginning and 74.4 MB in the end (delta: 27.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 06:47:33,802 INFO L168 Benchmark]: CACSL2BoogieTranslator took 571.19 ms. Allocated memory is still 100.7 MB. Free memory was 65.0 MB in the beginning and 68.6 MB in the end (delta: -3.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 06:47:33,803 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.36 ms. Allocated memory is still 100.7 MB. Free memory was 68.6 MB in the beginning and 66.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 06:47:33,803 INFO L168 Benchmark]: Boogie Preprocessor took 59.17 ms. Allocated memory is still 100.7 MB. Free memory was 66.0 MB in the beginning and 63.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 06:47:33,804 INFO L168 Benchmark]: RCFGBuilder took 1449.34 ms. Allocated memory was 100.7 MB in the beginning and 127.9 MB in the end (delta: 27.3 MB). Free memory was 63.6 MB in the beginning and 93.1 MB in the end (delta: -29.5 MB). Peak memory consumption was 43.2 MB. Max. memory is 16.1 GB. [2021-10-13 06:47:33,805 INFO L168 Benchmark]: TraceAbstraction took 17689.50 ms. Allocated memory was 127.9 MB in the beginning and 186.6 MB in the end (delta: 58.7 MB). Free memory was 92.3 MB in the beginning and 84.7 MB in the end (delta: 7.6 MB). Peak memory consumption was 67.1 MB. Max. memory is 16.1 GB. [2021-10-13 06:47:33,808 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 100.7 MB. Free memory was 74.5 MB in the beginning and 74.4 MB in the end (delta: 27.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 571.19 ms. Allocated memory is still 100.7 MB. Free memory was 65.0 MB in the beginning and 68.6 MB in the end (delta: -3.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 76.36 ms. Allocated memory is still 100.7 MB. Free memory was 68.6 MB in the beginning and 66.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 59.17 ms. Allocated memory is still 100.7 MB. Free memory was 66.0 MB in the beginning and 63.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1449.34 ms. Allocated memory was 100.7 MB in the beginning and 127.9 MB in the end (delta: 27.3 MB). Free memory was 63.6 MB in the beginning and 93.1 MB in the end (delta: -29.5 MB). Peak memory consumption was 43.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 17689.50 ms. Allocated memory was 127.9 MB in the beginning and 186.6 MB in the end (delta: 58.7 MB). Free memory was 92.3 MB in the beginning and 84.7 MB in the end (delta: 7.6 MB). Peak memory consumption was 67.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#valid_10| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for |v_#valid_10|: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-13 06:47:33,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 06:47:36,324 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 06:47:36,326 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 06:47:36,359 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 06:47:36,361 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 06:47:36,366 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 06:47:36,369 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 06:47:36,375 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 06:47:36,379 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 06:47:36,381 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 06:47:36,382 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 06:47:36,384 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 06:47:36,384 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 06:47:36,385 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 06:47:36,387 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 06:47:36,388 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 06:47:36,388 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 06:47:36,389 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 06:47:36,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 06:47:36,394 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 06:47:36,395 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 06:47:36,397 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 06:47:36,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 06:47:36,399 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 06:47:36,403 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 06:47:36,403 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 06:47:36,403 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 06:47:36,404 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 06:47:36,405 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 06:47:36,406 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 06:47:36,407 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 06:47:36,407 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 06:47:36,408 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 06:47:36,409 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 06:47:36,411 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 06:47:36,411 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 06:47:36,412 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 06:47:36,412 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 06:47:36,413 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 06:47:36,414 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 06:47:36,414 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 06:47:36,415 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 06:47:36,446 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 06:47:36,448 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 06:47:36,450 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 06:47:36,450 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 06:47:36,451 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 06:47:36,451 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 06:47:36,453 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 06:47:36,454 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 06:47:36,454 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 06:47:36,456 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 06:47:36,457 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 06:47:36,457 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 06:47:36,457 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 06:47:36,457 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 06:47:36,458 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 06:47:36,458 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 06:47:36,458 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 06:47:36,458 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 06:47:36,458 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 06:47:36,459 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 06:47:36,459 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 06:47:36,459 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 06:47:36,459 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 06:47:36,460 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 06:47:36,460 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 06:47:36,460 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 06:47:36,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:47:36,461 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 06:47:36,461 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 06:47:36,461 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 06:47:36,461 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 06:47:36,461 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 06:47:36,462 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 06:47:36,462 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 06:47:36,462 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 06:47:36,462 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_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b1624bcee836a6ef84f0c5a49c428b8da4ed56b [2021-10-13 06:47:36,864 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 06:47:36,894 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 06:47:36,898 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 06:47:36,899 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 06:47:36,900 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 06:47:36,901 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/loop-lit/gj2007.c.i.p+nlh-reducer.c [2021-10-13 06:47:36,967 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/data/3d9057f4b/6b09248ef61e452a95f8bc8ac4de85d3/FLAG39fd2d831 [2021-10-13 06:47:37,528 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 06:47:37,529 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/sv-benchmarks/c/loop-lit/gj2007.c.i.p+nlh-reducer.c [2021-10-13 06:47:37,549 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/data/3d9057f4b/6b09248ef61e452a95f8bc8ac4de85d3/FLAG39fd2d831 [2021-10-13 06:47:37,814 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/data/3d9057f4b/6b09248ef61e452a95f8bc8ac4de85d3 [2021-10-13 06:47:37,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 06:47:37,822 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 06:47:37,826 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 06:47:37,826 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 06:47:37,830 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 06:47:37,831 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:47:37" (1/1) ... [2021-10-13 06:47:37,833 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ab6d488 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:47:37, skipping insertion in model container [2021-10-13 06:47:37,834 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:47:37" (1/1) ... [2021-10-13 06:47:37,848 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 06:47:37,907 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 06:47:38,148 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/sv-benchmarks/c/loop-lit/gj2007.c.i.p+nlh-reducer.c[6448,6461] [2021-10-13 06:47:38,290 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:47:38,301 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 06:47:38,372 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/sv-benchmarks/c/loop-lit/gj2007.c.i.p+nlh-reducer.c[6448,6461] [2021-10-13 06:47:38,417 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:47:38,439 INFO L208 MainTranslator]: Completed translation [2021-10-13 06:47:38,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:47:38 WrapperNode [2021-10-13 06:47:38,440 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 06:47:38,441 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 06:47:38,441 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 06:47:38,442 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 06:47:38,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:47:38" (1/1) ... [2021-10-13 06:47:38,474 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:47:38" (1/1) ... [2021-10-13 06:47:38,518 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 06:47:38,519 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 06:47:38,519 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 06:47:38,519 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 06:47:38,527 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:47:38" (1/1) ... [2021-10-13 06:47:38,528 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:47:38" (1/1) ... [2021-10-13 06:47:38,532 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:47:38" (1/1) ... [2021-10-13 06:47:38,532 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:47:38" (1/1) ... [2021-10-13 06:47:38,546 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:47:38" (1/1) ... [2021-10-13 06:47:38,555 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:47:38" (1/1) ... [2021-10-13 06:47:38,558 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:47:38" (1/1) ... [2021-10-13 06:47:38,564 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 06:47:38,565 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 06:47:38,565 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 06:47:38,565 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 06:47:38,566 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:47:38" (1/1) ... [2021-10-13 06:47:38,572 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:47:38,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 06:47:38,595 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 06:47:38,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 06:47:38,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 06:47:38,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 06:47:38,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 06:47:38,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 06:47:39,450 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 06:47:39,450 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-13 06:47:39,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:47:39 BoogieIcfgContainer [2021-10-13 06:47:39,453 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 06:47:39,455 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 06:47:39,455 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 06:47:39,458 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 06:47:39,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:47:37" (1/3) ... [2021-10-13 06:47:39,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d59ce1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:47:39, skipping insertion in model container [2021-10-13 06:47:39,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:47:38" (2/3) ... [2021-10-13 06:47:39,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d59ce1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:47:39, skipping insertion in model container [2021-10-13 06:47:39,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:47:39" (3/3) ... [2021-10-13 06:47:39,462 INFO L111 eAbstractionObserver]: Analyzing ICFG gj2007.c.i.p+nlh-reducer.c [2021-10-13 06:47:39,467 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 06:47:39,468 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 06:47:39,519 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 06:47:39,526 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, mConcurrency=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 [2021-10-13 06:47:39,527 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 06:47:39,547 INFO L276 IsEmpty]: Start isEmpty. Operand has 144 states, 142 states have (on average 1.971830985915493) internal successors, (280), 143 states have internal predecessors, (280), 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) [2021-10-13 06:47:39,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-10-13 06:47:39,560 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:47:39,561 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:47:39,562 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:47:39,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:47:39,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1067704148, now seen corresponding path program 1 times [2021-10-13 06:47:39,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:47:39,587 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [316039759] [2021-10-13 06:47:39,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:47:39,588 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:47:39,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:47:39,591 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:47:39,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 06:47:39,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:47:39,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 06:47:39,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:47:40,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:47:40,162 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:47:40,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:47:40,577 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:47:40,577 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [316039759] [2021-10-13 06:47:40,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [316039759] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:47:40,578 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:47:40,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 06:47:40,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389893323] [2021-10-13 06:47:40,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 06:47:40,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:47:40,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 06:47:40,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:47:40,628 INFO L87 Difference]: Start difference. First operand has 144 states, 142 states have (on average 1.971830985915493) internal successors, (280), 143 states have internal predecessors, (280), 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 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 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) [2021-10-13 06:47:41,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:47:41,254 INFO L93 Difference]: Finished difference Result 284 states and 554 transitions. [2021-10-13 06:47:41,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 06:47:41,256 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 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 139 [2021-10-13 06:47:41,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:47:41,267 INFO L225 Difference]: With dead ends: 284 [2021-10-13 06:47:41,267 INFO L226 Difference]: Without dead ends: 141 [2021-10-13 06:47:41,269 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:47:41,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-10-13 06:47:41,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2021-10-13 06:47:41,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 140 states have (on average 1.4785714285714286) internal successors, (207), 140 states have internal predecessors, (207), 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) [2021-10-13 06:47:41,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 207 transitions. [2021-10-13 06:47:41,309 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 207 transitions. Word has length 139 [2021-10-13 06:47:41,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:47:41,310 INFO L470 AbstractCegarLoop]: Abstraction has 141 states and 207 transitions. [2021-10-13 06:47:41,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 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) [2021-10-13 06:47:41,310 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 207 transitions. [2021-10-13 06:47:41,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-10-13 06:47:41,313 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:47:41,314 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:47:41,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 06:47:41,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:47:41,527 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:47:41,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:47:41,528 INFO L82 PathProgramCache]: Analyzing trace with hash 1752580255, now seen corresponding path program 1 times [2021-10-13 06:47:41,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:47:41,529 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [800792948] [2021-10-13 06:47:41,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:47:41,530 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:47:41,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:47:41,531 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:47:41,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 06:47:41,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:47:41,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 06:47:41,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:47:42,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:47:42,105 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:47:42,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:47:42,558 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:47:42,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [800792948] [2021-10-13 06:47:42,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [800792948] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:47:42,558 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:47:42,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-10-13 06:47:42,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440530259] [2021-10-13 06:47:42,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 06:47:42,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:47:42,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 06:47:42,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-10-13 06:47:42,562 INFO L87 Difference]: Start difference. First operand 141 states and 207 transitions. Second operand has 10 states, 10 states have (on average 14.8) internal successors, (148), 10 states have internal predecessors, (148), 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) [2021-10-13 06:47:43,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:47:43,655 INFO L93 Difference]: Finished difference Result 274 states and 405 transitions. [2021-10-13 06:47:43,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 06:47:43,656 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.8) internal successors, (148), 10 states have internal predecessors, (148), 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 139 [2021-10-13 06:47:43,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:47:43,657 INFO L225 Difference]: With dead ends: 274 [2021-10-13 06:47:43,657 INFO L226 Difference]: Without dead ends: 141 [2021-10-13 06:47:43,659 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 150.7ms TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2021-10-13 06:47:43,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-10-13 06:47:43,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2021-10-13 06:47:43,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 140 states have (on average 1.4357142857142857) internal successors, (201), 140 states have internal predecessors, (201), 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) [2021-10-13 06:47:43,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 201 transitions. [2021-10-13 06:47:43,672 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 201 transitions. Word has length 139 [2021-10-13 06:47:43,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:47:43,672 INFO L470 AbstractCegarLoop]: Abstraction has 141 states and 201 transitions. [2021-10-13 06:47:43,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.8) internal successors, (148), 10 states have internal predecessors, (148), 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) [2021-10-13 06:47:43,673 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 201 transitions. [2021-10-13 06:47:43,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-10-13 06:47:43,675 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:47:43,675 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:47:43,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 06:47:43,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:47:43,888 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:47:43,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:47:43,889 INFO L82 PathProgramCache]: Analyzing trace with hash 319602086, now seen corresponding path program 1 times [2021-10-13 06:47:43,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:47:43,890 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1642791255] [2021-10-13 06:47:43,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:47:43,890 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:47:43,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:47:43,891 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:47:43,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 06:47:44,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:47:44,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-13 06:47:44,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:47:44,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:47:44,579 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:47:45,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:47:45,318 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:47:45,318 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1642791255] [2021-10-13 06:47:45,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1642791255] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:47:45,318 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:47:45,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 24 [2021-10-13 06:47:45,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111240560] [2021-10-13 06:47:45,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-13 06:47:45,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:47:45,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-13 06:47:45,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2021-10-13 06:47:45,321 INFO L87 Difference]: Start difference. First operand 141 states and 201 transitions. Second operand has 24 states, 24 states have (on average 6.75) internal successors, (162), 24 states have internal predecessors, (162), 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) [2021-10-13 06:47:48,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:47:48,100 INFO L93 Difference]: Finished difference Result 262 states and 381 transitions. [2021-10-13 06:47:48,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-13 06:47:48,100 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 6.75) internal successors, (162), 24 states have internal predecessors, (162), 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 139 [2021-10-13 06:47:48,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:47:48,102 INFO L225 Difference]: With dead ends: 262 [2021-10-13 06:47:48,102 INFO L226 Difference]: Without dead ends: 141 [2021-10-13 06:47:48,103 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1315.4ms TimeCoverageRelationStatistics Valid=406, Invalid=716, Unknown=0, NotChecked=0, Total=1122 [2021-10-13 06:47:48,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-10-13 06:47:48,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2021-10-13 06:47:48,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 140 states have (on average 1.3357142857142856) internal successors, (187), 140 states have internal predecessors, (187), 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) [2021-10-13 06:47:48,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 187 transitions. [2021-10-13 06:47:48,114 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 187 transitions. Word has length 139 [2021-10-13 06:47:48,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:47:48,115 INFO L470 AbstractCegarLoop]: Abstraction has 141 states and 187 transitions. [2021-10-13 06:47:48,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 6.75) internal successors, (162), 24 states have internal predecessors, (162), 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) [2021-10-13 06:47:48,116 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 187 transitions. [2021-10-13 06:47:48,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-10-13 06:47:48,118 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:47:48,118 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:47:48,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 06:47:48,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:47:48,334 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:47:48,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:47:48,335 INFO L82 PathProgramCache]: Analyzing trace with hash 1617271278, now seen corresponding path program 1 times [2021-10-13 06:47:48,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:47:48,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1663775309] [2021-10-13 06:47:48,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:47:48,337 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:47:48,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:47:48,338 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:47:48,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 06:47:48,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:47:48,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-13 06:47:48,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:47:49,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:47:49,364 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:47:51,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:47:51,328 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:47:51,328 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1663775309] [2021-10-13 06:47:51,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1663775309] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:47:51,329 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:47:51,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26, 26] imperfect sequences [] total 50 [2021-10-13 06:47:51,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366309588] [2021-10-13 06:47:51,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2021-10-13 06:47:51,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:47:51,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2021-10-13 06:47:51,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=673, Invalid=1777, Unknown=0, NotChecked=0, Total=2450 [2021-10-13 06:47:51,333 INFO L87 Difference]: Start difference. First operand 141 states and 187 transitions. Second operand has 50 states, 50 states have (on average 3.76) internal successors, (188), 50 states have internal predecessors, (188), 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) [2021-10-13 06:47:59,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:47:59,707 INFO L93 Difference]: Finished difference Result 234 states and 325 transitions. [2021-10-13 06:47:59,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-10-13 06:47:59,708 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 3.76) internal successors, (188), 50 states have internal predecessors, (188), 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 139 [2021-10-13 06:47:59,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:47:59,710 INFO L225 Difference]: With dead ends: 234 [2021-10-13 06:47:59,710 INFO L226 Difference]: Without dead ends: 141 [2021-10-13 06:47:59,713 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 7206.2ms TimeCoverageRelationStatistics Valid=1823, Invalid=3433, Unknown=0, NotChecked=0, Total=5256 [2021-10-13 06:47:59,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-10-13 06:47:59,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2021-10-13 06:47:59,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 140 states have (on average 1.15) internal successors, (161), 140 states have internal predecessors, (161), 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) [2021-10-13 06:47:59,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 161 transitions. [2021-10-13 06:47:59,733 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 161 transitions. Word has length 139 [2021-10-13 06:47:59,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:47:59,736 INFO L470 AbstractCegarLoop]: Abstraction has 141 states and 161 transitions. [2021-10-13 06:47:59,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 3.76) internal successors, (188), 50 states have internal predecessors, (188), 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) [2021-10-13 06:47:59,736 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 161 transitions. [2021-10-13 06:47:59,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-10-13 06:47:59,746 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:47:59,747 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:47:59,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-13 06:47:59,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:47:59,962 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:47:59,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:47:59,963 INFO L82 PathProgramCache]: Analyzing trace with hash 990601878, now seen corresponding path program 1 times [2021-10-13 06:47:59,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:47:59,965 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1185126803] [2021-10-13 06:47:59,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:47:59,965 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:47:59,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:47:59,966 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:48:00,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 06:48:00,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:48:00,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 50 conjunts are in the unsatisfiable core [2021-10-13 06:48:00,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:48:01,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:48:01,886 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:48:06,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:48:06,778 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:48:06,779 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1185126803] [2021-10-13 06:48:06,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1185126803] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:48:06,779 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:48:06,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [51, 51] imperfect sequences [] total 100 [2021-10-13 06:48:06,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795286749] [2021-10-13 06:48:06,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 100 states [2021-10-13 06:48:06,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:48:06,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2021-10-13 06:48:06,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1470, Invalid=8430, Unknown=0, NotChecked=0, Total=9900 [2021-10-13 06:48:06,785 INFO L87 Difference]: Start difference. First operand 141 states and 161 transitions. Second operand has 100 states, 100 states have (on average 2.38) internal successors, (238), 100 states have internal predecessors, (238), 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) [2021-10-13 06:48:11,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:48:11,114 INFO L93 Difference]: Finished difference Result 182 states and 221 transitions. [2021-10-13 06:48:11,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-10-13 06:48:11,115 INFO L78 Accepts]: Start accepts. Automaton has has 100 states, 100 states have (on average 2.38) internal successors, (238), 100 states have internal predecessors, (238), 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 139 [2021-10-13 06:48:11,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:48:11,117 INFO L225 Difference]: With dead ends: 182 [2021-10-13 06:48:11,117 INFO L226 Difference]: Without dead ends: 141 [2021-10-13 06:48:11,120 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1175 ImplicationChecksByTransitivity, 5451.1ms TimeCoverageRelationStatistics Valid=1470, Invalid=8430, Unknown=0, NotChecked=0, Total=9900 [2021-10-13 06:48:11,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-10-13 06:48:11,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2021-10-13 06:48:11,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 140 states have (on average 1.1357142857142857) internal successors, (159), 140 states have internal predecessors, (159), 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) [2021-10-13 06:48:11,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 159 transitions. [2021-10-13 06:48:11,131 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 159 transitions. Word has length 139 [2021-10-13 06:48:11,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:48:11,132 INFO L470 AbstractCegarLoop]: Abstraction has 141 states and 159 transitions. [2021-10-13 06:48:11,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 100 states, 100 states have (on average 2.38) internal successors, (238), 100 states have internal predecessors, (238), 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) [2021-10-13 06:48:11,132 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 159 transitions. [2021-10-13 06:48:11,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-10-13 06:48:11,134 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:48:11,134 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:48:11,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-13 06:48:11,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:48:11,335 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:48:11,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:48:11,335 INFO L82 PathProgramCache]: Analyzing trace with hash -1267837999, now seen corresponding path program 1 times [2021-10-13 06:48:11,335 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:48:11,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1502603756] [2021-10-13 06:48:11,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:48:11,336 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:48:11,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:48:11,337 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:48:11,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-13 06:48:11,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:48:11,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 52 conjunts are in the unsatisfiable core [2021-10-13 06:48:11,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:48:13,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:48:13,256 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:48:18,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:48:18,808 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:48:18,810 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1502603756] [2021-10-13 06:48:18,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1502603756] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:48:18,810 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:48:18,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53, 53] imperfect sequences [] total 104 [2021-10-13 06:48:18,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771085231] [2021-10-13 06:48:18,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 104 states [2021-10-13 06:48:18,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:48:18,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2021-10-13 06:48:18,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1531, Invalid=9181, Unknown=0, NotChecked=0, Total=10712 [2021-10-13 06:48:18,816 INFO L87 Difference]: Start difference. First operand 141 states and 159 transitions. Second operand has 104 states, 104 states have (on average 2.326923076923077) internal successors, (242), 104 states have internal predecessors, (242), 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) [2021-10-13 06:48:25,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:48:25,510 INFO L93 Difference]: Finished difference Result 178 states and 213 transitions. [2021-10-13 06:48:25,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-10-13 06:48:25,511 INFO L78 Accepts]: Start accepts. Automaton has has 104 states, 104 states have (on average 2.326923076923077) internal successors, (242), 104 states have internal predecessors, (242), 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 139 [2021-10-13 06:48:25,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:48:25,512 INFO L225 Difference]: With dead ends: 178 [2021-10-13 06:48:25,512 INFO L226 Difference]: Without dead ends: 141 [2021-10-13 06:48:25,516 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 8332.4ms TimeCoverageRelationStatistics Valid=1639, Invalid=9491, Unknown=0, NotChecked=0, Total=11130 [2021-10-13 06:48:25,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-10-13 06:48:25,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2021-10-13 06:48:25,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 140 states have (on average 1.0071428571428571) internal successors, (141), 140 states have internal predecessors, (141), 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) [2021-10-13 06:48:25,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 141 transitions. [2021-10-13 06:48:25,525 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 141 transitions. Word has length 139 [2021-10-13 06:48:25,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:48:25,526 INFO L470 AbstractCegarLoop]: Abstraction has 141 states and 141 transitions. [2021-10-13 06:48:25,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 104 states, 104 states have (on average 2.326923076923077) internal successors, (242), 104 states have internal predecessors, (242), 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) [2021-10-13 06:48:25,526 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 141 transitions. [2021-10-13 06:48:25,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-10-13 06:48:25,528 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:48:25,528 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:48:25,544 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-10-13 06:48:25,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:48:25,741 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:48:25,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:48:25,742 INFO L82 PathProgramCache]: Analyzing trace with hash -2012640870, now seen corresponding path program 1 times [2021-10-13 06:48:25,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:48:25,743 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [663397313] [2021-10-13 06:48:25,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:48:25,743 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:48:25,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:48:25,744 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:48:25,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-13 06:48:26,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:48:26,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 69 conjunts are in the unsatisfiable core [2021-10-13 06:48:26,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:48:28,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:48:28,509 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:48:38,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:48:38,031 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:48:38,031 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [663397313] [2021-10-13 06:48:38,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [663397313] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:48:38,032 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:48:38,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [70, 70] imperfect sequences [] total 138 [2021-10-13 06:48:38,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758449011] [2021-10-13 06:48:38,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 138 states [2021-10-13 06:48:38,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:48:38,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 138 interpolants. [2021-10-13 06:48:38,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4267, Invalid=14639, Unknown=0, NotChecked=0, Total=18906 [2021-10-13 06:48:38,040 INFO L87 Difference]: Start difference. First operand 141 states and 141 transitions. Second operand has 138 states, 138 states have (on average 1.9927536231884058) internal successors, (275), 138 states have internal predecessors, (275), 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) [2021-10-13 06:49:09,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:49:09,269 INFO L93 Difference]: Finished difference Result 209 states and 241 transitions. [2021-10-13 06:49:09,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2021-10-13 06:49:09,270 INFO L78 Accepts]: Start accepts. Automaton has has 138 states, 138 states have (on average 1.9927536231884058) internal successors, (275), 138 states have internal predecessors, (275), 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 139 [2021-10-13 06:49:09,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:49:09,272 INFO L225 Difference]: With dead ends: 209 [2021-10-13 06:49:09,272 INFO L226 Difference]: Without dead ends: 206 [2021-10-13 06:49:09,275 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2215 ImplicationChecksByTransitivity, 36887.7ms TimeCoverageRelationStatistics Valid=7429, Invalid=20963, Unknown=0, NotChecked=0, Total=28392 [2021-10-13 06:49:09,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2021-10-13 06:49:09,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2021-10-13 06:49:09,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 205 states have (on average 1.0048780487804878) internal successors, (206), 205 states have internal predecessors, (206), 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) [2021-10-13 06:49:09,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 206 transitions. [2021-10-13 06:49:09,289 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 206 transitions. Word has length 139 [2021-10-13 06:49:09,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:49:09,289 INFO L470 AbstractCegarLoop]: Abstraction has 206 states and 206 transitions. [2021-10-13 06:49:09,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 138 states, 138 states have (on average 1.9927536231884058) internal successors, (275), 138 states have internal predecessors, (275), 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) [2021-10-13 06:49:09,290 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 206 transitions. [2021-10-13 06:49:09,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-10-13 06:49:09,292 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:49:09,293 INFO L512 BasicCegarLoop]: trace histogram [33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:49:09,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-13 06:49:09,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:49:09,506 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:49:09,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:49:09,507 INFO L82 PathProgramCache]: Analyzing trace with hash 1334769172, now seen corresponding path program 1 times [2021-10-13 06:49:09,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:49:09,508 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [929821922] [2021-10-13 06:49:09,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:49:09,508 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:49:09,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:49:09,511 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:49:09,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-13 06:49:10,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:49:10,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 54 conjunts are in the unsatisfiable core [2021-10-13 06:49:10,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:49:12,066 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 0 proven. 1089 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:49:12,066 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:49:12,837 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 0 proven. 1089 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:49:12,838 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:49:12,838 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [929821922] [2021-10-13 06:49:12,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [929821922] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 06:49:12,838 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2119736880] [2021-10-13 06:49:12,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:49:12,839 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 06:49:12,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 06:49:12,845 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 06:49:12,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-10-13 06:49:14,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:49:14,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 115 conjunts are in the unsatisfiable core [2021-10-13 06:49:14,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:49:20,024 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 0 proven. 1089 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:49:20,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:49:20,760 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 0 proven. 1089 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:49:20,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2119736880] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 06:49:20,761 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715330150] [2021-10-13 06:49:20,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:49:20,761 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 06:49:20,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 06:49:20,763 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 06:49:20,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-13 06:49:21,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:49:21,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 55 conjunts are in the unsatisfiable core [2021-10-13 06:49:21,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:49:22,260 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 0 proven. 1089 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:49:22,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:49:22,923 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 0 proven. 1089 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:49:22,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1715330150] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 06:49:22,923 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-13 06:49:22,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54, 104, 54, 54, 54] total 115 [2021-10-13 06:49:22,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690712976] [2021-10-13 06:49:22,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 115 states [2021-10-13 06:49:22,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:49:22,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 115 interpolants. [2021-10-13 06:49:22,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=288, Invalid=12822, Unknown=0, NotChecked=0, Total=13110 [2021-10-13 06:49:22,928 INFO L87 Difference]: Start difference. First operand 206 states and 206 transitions. Second operand has 115 states, 115 states have (on average 2.8521739130434782) internal successors, (328), 115 states have internal predecessors, (328), 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) [2021-10-13 06:49:28,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:49:28,130 INFO L93 Difference]: Finished difference Result 212 states and 212 transitions. [2021-10-13 06:49:28,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2021-10-13 06:49:28,130 INFO L78 Accepts]: Start accepts. Automaton has has 115 states, 115 states have (on average 2.8521739130434782) internal successors, (328), 115 states have internal predecessors, (328), 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 [2021-10-13 06:49:28,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:49:28,132 INFO L225 Difference]: With dead ends: 212 [2021-10-13 06:49:28,132 INFO L226 Difference]: Without dead ends: 209 [2021-10-13 06:49:28,134 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1225 GetRequests, 1111 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 615 ImplicationChecksByTransitivity, 5971.2ms TimeCoverageRelationStatistics Valid=293, Invalid=13047, Unknown=0, NotChecked=0, Total=13340 [2021-10-13 06:49:28,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2021-10-13 06:49:28,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 208. [2021-10-13 06:49:28,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 207 states have (on average 1.0048309178743962) internal successors, (208), 207 states have internal predecessors, (208), 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) [2021-10-13 06:49:28,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 208 transitions. [2021-10-13 06:49:28,146 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 208 transitions. Word has length 205 [2021-10-13 06:49:28,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:49:28,147 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 208 transitions. [2021-10-13 06:49:28,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 115 states, 115 states have (on average 2.8521739130434782) internal successors, (328), 115 states have internal predecessors, (328), 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) [2021-10-13 06:49:28,147 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 208 transitions. [2021-10-13 06:49:28,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-10-13 06:49:28,150 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:49:28,150 INFO L512 BasicCegarLoop]: trace histogram [34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:49:28,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-13 06:49:28,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-10-13 06:49:28,571 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-10-13 06:49:28,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt [2021-10-13 06:49:28,765 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:49:28,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:49:28,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1489572658, now seen corresponding path program 2 times [2021-10-13 06:49:28,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:49:28,766 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [705849007] [2021-10-13 06:49:28,766 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 06:49:28,766 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:49:28,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:49:28,767 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:49:28,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-13 06:49:29,677 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 06:49:29,677 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 06:49:29,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 102 conjunts are in the unsatisfiable core [2021-10-13 06:49:29,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:49:34,256 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 67 proven. 1089 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:49:34,256 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:49:56,265 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 67 proven. 1089 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:49:56,266 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:49:56,266 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [705849007] [2021-10-13 06:49:56,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [705849007] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 06:49:56,267 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1116233639] [2021-10-13 06:49:56,267 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 06:49:56,267 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 06:49:56,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 06:49:56,268 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 06:49:56,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-10-13 06:49:57,974 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 06:49:57,974 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 06:49:57,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 102 conjunts are in the unsatisfiable core [2021-10-13 06:49:57,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:49:58,701 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 67 proven. 1089 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:49:58,701 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:49:59,441 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 67 proven. 1089 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:49:59,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1116233639] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 06:49:59,441 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [523673729] [2021-10-13 06:49:59,442 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 06:49:59,442 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 06:49:59,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 06:49:59,449 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 06:49:59,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-13 06:50:00,690 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 06:50:00,690 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 06:50:00,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 105 conjunts are in the unsatisfiable core [2021-10-13 06:50:00,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:50:01,369 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 67 proven. 1089 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:50:01,369 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:50:47,853 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 0 proven. 1156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:50:47,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [523673729] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 06:50:47,853 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-13 06:50:47,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [103, 103, 103, 103, 103, 105] total 307 [2021-10-13 06:50:47,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824779970] [2021-10-13 06:50:47,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 307 states [2021-10-13 06:50:47,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:50:47,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 307 interpolants. [2021-10-13 06:50:47,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21214, Invalid=72728, Unknown=0, NotChecked=0, Total=93942 [2021-10-13 06:50:47,868 INFO L87 Difference]: Start difference. First operand 208 states and 208 transitions. Second operand has 307 states, 307 states have (on average 1.996742671009772) internal successors, (613), 307 states have internal predecessors, (613), 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) [2021-10-13 06:50:59,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:50:59,243 INFO L93 Difference]: Finished difference Result 208 states and 208 transitions. [2021-10-13 06:50:59,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-10-13 06:50:59,245 INFO L78 Accepts]: Start accepts. Automaton has has 307 states, 307 states have (on average 1.996742671009772) internal successors, (613), 307 states have internal predecessors, (613), 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 207 [2021-10-13 06:50:59,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:50:59,246 INFO L225 Difference]: With dead ends: 208 [2021-10-13 06:50:59,246 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 06:50:59,253 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1236 GetRequests, 931 SyntacticMatches, 0 SemanticMatches, 305 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10403 ImplicationChecksByTransitivity, 69694.1ms TimeCoverageRelationStatistics Valid=21214, Invalid=72728, Unknown=0, NotChecked=0, Total=93942 [2021-10-13 06:50:59,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 06:50:59,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 06:50:59,254 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) [2021-10-13 06:50:59,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 06:50:59,255 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 207 [2021-10-13 06:50:59,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:50:59,255 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 06:50:59,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 307 states, 307 states have (on average 1.996742671009772) internal successors, (613), 307 states have internal predecessors, (613), 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) [2021-10-13 06:50:59,257 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 06:50:59,257 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 06:50:59,260 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 06:50:59,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-10-13 06:50:59,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-10-13 06:50:59,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-10-13 06:50:59,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:50:59,867 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 06:50:59,870 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:50:59,910 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:50:59,915 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:50:59,919 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:50:59,926 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:50:59,935 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:50:59,947 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,160 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,162 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,165 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,166 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,167 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,168 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,169 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,170 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,172 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,178 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,180 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,181 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,184 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,185 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,186 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,187 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,188 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,190 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,191 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,192 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,193 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,194 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,195 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,197 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,197 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,198 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,206 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,207 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,209 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,210 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,211 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,212 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,213 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,215 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,216 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,217 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,218 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,219 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,220 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,221 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,222 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,223 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,223 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,224 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,225 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,226 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,227 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,227 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,229 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,229 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,230 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,231 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,232 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,233 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,234 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,235 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,236 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,241 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,243 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,244 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:00,244 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:51:01,688 INFO L853 garLoopResultBuilder]: At program point L927(lines 181 928) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv50 32)) (= (_ bv28 32) ULTIMATE.start_main_~main__x~0)) [2021-10-13 06:51:01,688 INFO L853 garLoopResultBuilder]: At program point L795(lines 247 796) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv50 32)) (= (_ bv39 32) ULTIMATE.start_main_~main__x~0)) [2021-10-13 06:51:01,688 INFO L853 garLoopResultBuilder]: At program point L663(lines 313 664) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv50 32)) (= ULTIMATE.start_main_~main__x~0 (_ bv50 32))) [2021-10-13 06:51:01,688 INFO L853 garLoopResultBuilder]: At program point L531(lines 379 532) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv61 32)) (= ULTIMATE.start_main_~main__x~0 (_ bv61 32))) [2021-10-13 06:51:01,688 INFO L857 garLoopResultBuilder]: For program point L367(lines 367 556) no Hoare annotation was computed. [2021-10-13 06:51:01,689 INFO L857 garLoopResultBuilder]: For program point L301(lines 301 688) no Hoare annotation was computed. [2021-10-13 06:51:01,689 INFO L857 garLoopResultBuilder]: For program point L235(lines 235 820) no Hoare annotation was computed. [2021-10-13 06:51:01,689 INFO L857 garLoopResultBuilder]: For program point L169(lines 169 952) no Hoare annotation was computed. [2021-10-13 06:51:01,689 INFO L857 garLoopResultBuilder]: For program point L103(lines 103 1084) no Hoare annotation was computed. [2021-10-13 06:51:01,689 INFO L857 garLoopResultBuilder]: For program point L37(lines 37 1216) no Hoare annotation was computed. [2021-10-13 06:51:01,689 INFO L853 garLoopResultBuilder]: At program point L1227(lines 31 1228) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv50 32)) (= (_ bv3 32) ULTIMATE.start_main_~main__x~0)) [2021-10-13 06:51:01,689 INFO L853 garLoopResultBuilder]: At program point L1095(lines 97 1096) the Hoare annotation is: (and (= (_ bv14 32) ULTIMATE.start_main_~main__x~0) (= ULTIMATE.start_main_~main__y~0 (_ bv50 32))) [2021-10-13 06:51:01,689 INFO L853 garLoopResultBuilder]: At program point L963(lines 163 964) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv50 32)) (= (_ bv25 32) ULTIMATE.start_main_~main__x~0)) [2021-10-13 06:51:01,689 INFO L853 garLoopResultBuilder]: At program point L831(lines 229 832) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv50 32)) (= (_ bv36 32) ULTIMATE.start_main_~main__x~0)) [2021-10-13 06:51:01,689 INFO L853 garLoopResultBuilder]: At program point L699(lines 295 700) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__x~0 (_ bv47 32)) (= ULTIMATE.start_main_~main__y~0 (_ bv50 32))) [2021-10-13 06:51:01,690 INFO L853 garLoopResultBuilder]: At program point L567(lines 361 568) the Hoare annotation is: (and (= (_ bv58 32) ULTIMATE.start_main_~main__x~0) (= (_ bv58 32) ULTIMATE.start_main_~main__y~0)) [2021-10-13 06:51:01,690 INFO L857 garLoopResultBuilder]: For program point L403(lines 403 484) no Hoare annotation was computed. [2021-10-13 06:51:01,690 INFO L857 garLoopResultBuilder]: For program point L337(lines 337 616) no Hoare annotation was computed. [2021-10-13 06:51:01,690 INFO L857 garLoopResultBuilder]: For program point L271(lines 271 748) no Hoare annotation was computed. [2021-10-13 06:51:01,690 INFO L857 garLoopResultBuilder]: For program point L205(lines 205 880) no Hoare annotation was computed. [2021-10-13 06:51:01,690 INFO L857 garLoopResultBuilder]: For program point L139(lines 139 1012) no Hoare annotation was computed. [2021-10-13 06:51:01,690 INFO L857 garLoopResultBuilder]: For program point L73(lines 73 1144) no Hoare annotation was computed. [2021-10-13 06:51:01,690 INFO L853 garLoopResultBuilder]: At program point L1131(lines 79 1132) the Hoare annotation is: (and (= (_ bv11 32) ULTIMATE.start_main_~main__x~0) (= ULTIMATE.start_main_~main__y~0 (_ bv50 32))) [2021-10-13 06:51:01,690 INFO L853 garLoopResultBuilder]: At program point L999(lines 145 1000) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv50 32)) (= (_ bv22 32) ULTIMATE.start_main_~main__x~0)) [2021-10-13 06:51:01,690 INFO L853 garLoopResultBuilder]: At program point L867(lines 211 868) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv50 32)) (= (_ bv33 32) ULTIMATE.start_main_~main__x~0)) [2021-10-13 06:51:01,691 INFO L853 garLoopResultBuilder]: At program point L735(lines 277 736) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv50 32)) (= ULTIMATE.start_main_~main__x~0 (_ bv44 32))) [2021-10-13 06:51:01,691 INFO L853 garLoopResultBuilder]: At program point L603(lines 343 604) the Hoare annotation is: (and (= (_ bv55 32) ULTIMATE.start_main_~main__y~0) (= (_ bv55 32) ULTIMATE.start_main_~main__x~0)) [2021-10-13 06:51:01,691 INFO L853 garLoopResultBuilder]: At program point L471(lines 409 472) the Hoare annotation is: (and (= (_ bv66 32) ULTIMATE.start_main_~main__x~0) (= (_ bv66 32) ULTIMATE.start_main_~main__y~0)) [2021-10-13 06:51:01,691 INFO L857 garLoopResultBuilder]: For program point L373(lines 373 544) no Hoare annotation was computed. [2021-10-13 06:51:01,691 INFO L857 garLoopResultBuilder]: For program point L307(lines 307 676) no Hoare annotation was computed. [2021-10-13 06:51:01,691 INFO L857 garLoopResultBuilder]: For program point L241(lines 241 808) no Hoare annotation was computed. [2021-10-13 06:51:01,691 INFO L857 garLoopResultBuilder]: For program point L175(lines 175 940) no Hoare annotation was computed. [2021-10-13 06:51:01,691 INFO L857 garLoopResultBuilder]: For program point L109(lines 109 1072) no Hoare annotation was computed. [2021-10-13 06:51:01,691 INFO L857 garLoopResultBuilder]: For program point L43(lines 43 1204) no Hoare annotation was computed. [2021-10-13 06:51:01,691 INFO L853 garLoopResultBuilder]: At program point L1167(lines 61 1168) the Hoare annotation is: (and (= (_ bv8 32) ULTIMATE.start_main_~main__x~0) (= ULTIMATE.start_main_~main__y~0 (_ bv50 32))) [2021-10-13 06:51:01,691 INFO L853 garLoopResultBuilder]: At program point L1035(lines 127 1036) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv50 32)) (= ULTIMATE.start_main_~main__x~0 (_ bv19 32))) [2021-10-13 06:51:01,692 INFO L853 garLoopResultBuilder]: At program point L903(lines 193 904) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv50 32)) (= ULTIMATE.start_main_~main__x~0 (_ bv30 32))) [2021-10-13 06:51:01,692 INFO L853 garLoopResultBuilder]: At program point L771(lines 259 772) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv50 32)) (= (_ bv41 32) ULTIMATE.start_main_~main__x~0)) [2021-10-13 06:51:01,692 INFO L853 garLoopResultBuilder]: At program point L639(lines 325 640) the Hoare annotation is: (and (= (_ bv52 32) ULTIMATE.start_main_~main__y~0) (= (_ bv52 32) ULTIMATE.start_main_~main__x~0)) [2021-10-13 06:51:01,692 INFO L853 garLoopResultBuilder]: At program point L507(lines 391 508) the Hoare annotation is: (and (= (_ bv63 32) ULTIMATE.start_main_~main__x~0) (= (_ bv63 32) ULTIMATE.start_main_~main__y~0)) [2021-10-13 06:51:01,692 INFO L857 garLoopResultBuilder]: For program point L442(lines 442 451) no Hoare annotation was computed. [2021-10-13 06:51:01,692 INFO L857 garLoopResultBuilder]: For program point L409(lines 409 472) no Hoare annotation was computed. [2021-10-13 06:51:01,692 INFO L857 garLoopResultBuilder]: For program point L343(lines 343 604) no Hoare annotation was computed. [2021-10-13 06:51:01,692 INFO L857 garLoopResultBuilder]: For program point L277(lines 277 736) no Hoare annotation was computed. [2021-10-13 06:51:01,692 INFO L857 garLoopResultBuilder]: For program point L211(lines 211 868) no Hoare annotation was computed. [2021-10-13 06:51:01,692 INFO L857 garLoopResultBuilder]: For program point L145(lines 145 1000) no Hoare annotation was computed. [2021-10-13 06:51:01,692 INFO L857 garLoopResultBuilder]: For program point L79(lines 79 1132) no Hoare annotation was computed. [2021-10-13 06:51:01,693 INFO L853 garLoopResultBuilder]: At program point L1203(lines 43 1204) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv50 32)) (= ULTIMATE.start_main_~main__x~0 (_ bv5 32))) [2021-10-13 06:51:01,693 INFO L853 garLoopResultBuilder]: At program point L1071(lines 109 1072) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv50 32)) (= (_ bv16 32) ULTIMATE.start_main_~main__x~0)) [2021-10-13 06:51:01,693 INFO L853 garLoopResultBuilder]: At program point L939(lines 175 940) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv50 32)) (= (_ bv27 32) ULTIMATE.start_main_~main__x~0)) [2021-10-13 06:51:01,693 INFO L853 garLoopResultBuilder]: At program point L807(lines 241 808) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv50 32)) (= (_ bv38 32) ULTIMATE.start_main_~main__x~0)) [2021-10-13 06:51:01,693 INFO L853 garLoopResultBuilder]: At program point L675(lines 307 676) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv50 32)) (= (_ bv49 32) ULTIMATE.start_main_~main__x~0)) [2021-10-13 06:51:01,693 INFO L853 garLoopResultBuilder]: At program point L543(lines 373 544) the Hoare annotation is: (and (= (_ bv60 32) ULTIMATE.start_main_~main__x~0) (= (_ bv60 32) ULTIMATE.start_main_~main__y~0)) [2021-10-13 06:51:01,694 INFO L857 garLoopResultBuilder]: For program point L444(line 444) no Hoare annotation was computed. [2021-10-13 06:51:01,694 INFO L857 garLoopResultBuilder]: For program point L379(lines 379 532) no Hoare annotation was computed. [2021-10-13 06:51:01,695 INFO L857 garLoopResultBuilder]: For program point L313(lines 313 664) no Hoare annotation was computed. [2021-10-13 06:51:01,695 INFO L857 garLoopResultBuilder]: For program point L247(lines 247 796) no Hoare annotation was computed. [2021-10-13 06:51:01,695 INFO L857 garLoopResultBuilder]: For program point L181(lines 181 928) no Hoare annotation was computed. [2021-10-13 06:51:01,695 INFO L857 garLoopResultBuilder]: For program point L115(lines 115 1060) no Hoare annotation was computed. [2021-10-13 06:51:01,695 INFO L857 garLoopResultBuilder]: For program point L49(lines 49 1192) no Hoare annotation was computed. [2021-10-13 06:51:01,695 INFO L853 garLoopResultBuilder]: At program point L1239(lines 25 1240) the Hoare annotation is: (and (= (_ bv2 32) ULTIMATE.start_main_~main__x~0) (= ULTIMATE.start_main_~main__y~0 (_ bv50 32))) [2021-10-13 06:51:01,695 INFO L853 garLoopResultBuilder]: At program point L1107(lines 91 1108) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv50 32)) (= (_ bv13 32) ULTIMATE.start_main_~main__x~0)) [2021-10-13 06:51:01,696 INFO L857 garLoopResultBuilder]: For program point L17(lines 17 1257) no Hoare annotation was computed. [2021-10-13 06:51:01,696 INFO L853 garLoopResultBuilder]: At program point L975(lines 157 976) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv50 32)) (= ULTIMATE.start_main_~main__x~0 (_ bv24 32))) [2021-10-13 06:51:01,696 INFO L853 garLoopResultBuilder]: At program point L843(lines 223 844) the Hoare annotation is: (and (= (_ bv35 32) ULTIMATE.start_main_~main__x~0) (= ULTIMATE.start_main_~main__y~0 (_ bv50 32))) [2021-10-13 06:51:01,696 INFO L853 garLoopResultBuilder]: At program point L711(lines 289 712) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv50 32)) (= ULTIMATE.start_main_~main__x~0 (_ bv46 32))) [2021-10-13 06:51:01,696 INFO L853 garLoopResultBuilder]: At program point L579(lines 355 580) the Hoare annotation is: (and (= (_ bv57 32) ULTIMATE.start_main_~main__y~0) (= (_ bv57 32) ULTIMATE.start_main_~main__x~0)) [2021-10-13 06:51:01,696 INFO L857 garLoopResultBuilder]: For program point L415(lines 415 460) no Hoare annotation was computed. [2021-10-13 06:51:01,697 INFO L857 garLoopResultBuilder]: For program point L349(lines 349 592) no Hoare annotation was computed. [2021-10-13 06:51:01,697 INFO L857 garLoopResultBuilder]: For program point L283(lines 283 724) no Hoare annotation was computed. [2021-10-13 06:51:01,697 INFO L857 garLoopResultBuilder]: For program point L217(lines 217 856) no Hoare annotation was computed. [2021-10-13 06:51:01,697 INFO L857 garLoopResultBuilder]: For program point L151(lines 151 988) no Hoare annotation was computed. [2021-10-13 06:51:01,697 INFO L857 garLoopResultBuilder]: For program point L85(lines 85 1120) no Hoare annotation was computed. [2021-10-13 06:51:01,697 INFO L857 garLoopResultBuilder]: For program point L19(lines 19 1252) no Hoare annotation was computed. [2021-10-13 06:51:01,697 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 06:51:01,698 INFO L853 garLoopResultBuilder]: At program point L1143(lines 73 1144) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv50 32)) (= (_ bv10 32) ULTIMATE.start_main_~main__x~0)) [2021-10-13 06:51:01,698 INFO L853 garLoopResultBuilder]: At program point L1011(lines 139 1012) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv50 32)) (= ULTIMATE.start_main_~main__x~0 (_ bv21 32))) [2021-10-13 06:51:01,698 INFO L853 garLoopResultBuilder]: At program point L879(lines 205 880) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv50 32)) (= ULTIMATE.start_main_~main__x~0 (_ bv32 32))) [2021-10-13 06:51:01,698 INFO L853 garLoopResultBuilder]: At program point L747(lines 271 748) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__x~0 (_ bv43 32)) (= ULTIMATE.start_main_~main__y~0 (_ bv50 32))) [2021-10-13 06:51:01,698 INFO L853 garLoopResultBuilder]: At program point L615(lines 337 616) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv54 32)) (= ULTIMATE.start_main_~main__x~0 (_ bv54 32))) [2021-10-13 06:51:01,698 INFO L853 garLoopResultBuilder]: At program point L483(lines 403 484) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv65 32)) (= ULTIMATE.start_main_~main__x~0 (_ bv65 32))) [2021-10-13 06:51:01,698 INFO L857 garLoopResultBuilder]: For program point L385(lines 385 520) no Hoare annotation was computed. [2021-10-13 06:51:01,699 INFO L857 garLoopResultBuilder]: For program point L319(lines 319 652) no Hoare annotation was computed. [2021-10-13 06:51:01,699 INFO L857 garLoopResultBuilder]: For program point L253(lines 253 784) no Hoare annotation was computed. [2021-10-13 06:51:01,699 INFO L857 garLoopResultBuilder]: For program point L187(lines 187 916) no Hoare annotation was computed. [2021-10-13 06:51:01,699 INFO L857 garLoopResultBuilder]: For program point L121(lines 121 1048) no Hoare annotation was computed. [2021-10-13 06:51:01,699 INFO L857 garLoopResultBuilder]: For program point L55(lines 55 1180) no Hoare annotation was computed. [2021-10-13 06:51:01,699 INFO L853 garLoopResultBuilder]: At program point L1179(lines 55 1180) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv50 32)) (= (_ bv7 32) ULTIMATE.start_main_~main__x~0)) [2021-10-13 06:51:01,699 INFO L853 garLoopResultBuilder]: At program point L1047(lines 121 1048) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv50 32)) (= (_ bv18 32) ULTIMATE.start_main_~main__x~0)) [2021-10-13 06:51:01,700 INFO L853 garLoopResultBuilder]: At program point L915(lines 187 916) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv50 32)) (= (_ bv29 32) ULTIMATE.start_main_~main__x~0)) [2021-10-13 06:51:01,700 INFO L853 garLoopResultBuilder]: At program point L783(lines 253 784) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv50 32)) (= ULTIMATE.start_main_~main__x~0 (_ bv40 32))) [2021-10-13 06:51:01,700 INFO L853 garLoopResultBuilder]: At program point L651(lines 319 652) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv51 32)) (= ULTIMATE.start_main_~main__x~0 (_ bv51 32))) [2021-10-13 06:51:01,700 INFO L853 garLoopResultBuilder]: At program point L519(lines 385 520) the Hoare annotation is: (and (= (_ bv62 32) ULTIMATE.start_main_~main__y~0) (= (_ bv62 32) ULTIMATE.start_main_~main__x~0)) [2021-10-13 06:51:01,700 INFO L857 garLoopResultBuilder]: For program point L355(lines 355 580) no Hoare annotation was computed. [2021-10-13 06:51:01,700 INFO L857 garLoopResultBuilder]: For program point L289(lines 289 712) no Hoare annotation was computed. [2021-10-13 06:51:01,701 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 06:51:01,701 INFO L857 garLoopResultBuilder]: For program point L223(lines 223 844) no Hoare annotation was computed. [2021-10-13 06:51:01,701 INFO L857 garLoopResultBuilder]: For program point L157(lines 157 976) no Hoare annotation was computed. [2021-10-13 06:51:01,701 INFO L857 garLoopResultBuilder]: For program point L91(lines 91 1108) no Hoare annotation was computed. [2021-10-13 06:51:01,701 INFO L857 garLoopResultBuilder]: For program point L25(lines 25 1240) no Hoare annotation was computed. [2021-10-13 06:51:01,701 INFO L857 garLoopResultBuilder]: For program point L422(lines 422 433) no Hoare annotation was computed. [2021-10-13 06:51:01,701 INFO L853 garLoopResultBuilder]: At program point L1215(lines 37 1216) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv50 32)) (= (_ bv4 32) ULTIMATE.start_main_~main__x~0)) [2021-10-13 06:51:01,702 INFO L853 garLoopResultBuilder]: At program point L1083(lines 103 1084) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv50 32)) (= (_ bv15 32) ULTIMATE.start_main_~main__x~0)) [2021-10-13 06:51:01,702 INFO L853 garLoopResultBuilder]: At program point L951(lines 169 952) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv50 32)) (= (_ bv26 32) ULTIMATE.start_main_~main__x~0)) [2021-10-13 06:51:01,702 INFO L853 garLoopResultBuilder]: At program point L819(lines 235 820) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv50 32)) (= ULTIMATE.start_main_~main__x~0 (_ bv37 32))) [2021-10-13 06:51:01,702 INFO L853 garLoopResultBuilder]: At program point L687(lines 301 688) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv50 32)) (= (_ bv48 32) ULTIMATE.start_main_~main__x~0)) [2021-10-13 06:51:01,702 INFO L853 garLoopResultBuilder]: At program point L555(lines 367 556) the Hoare annotation is: (and (= (_ bv59 32) ULTIMATE.start_main_~main__x~0) (= (_ bv59 32) ULTIMATE.start_main_~main__y~0)) [2021-10-13 06:51:01,702 INFO L857 garLoopResultBuilder]: For program point L391(lines 391 508) no Hoare annotation was computed. [2021-10-13 06:51:01,702 INFO L857 garLoopResultBuilder]: For program point L325(lines 325 640) no Hoare annotation was computed. [2021-10-13 06:51:01,703 INFO L857 garLoopResultBuilder]: For program point L259(lines 259 772) no Hoare annotation was computed. [2021-10-13 06:51:01,703 INFO L857 garLoopResultBuilder]: For program point L193(lines 193 904) no Hoare annotation was computed. [2021-10-13 06:51:01,703 INFO L857 garLoopResultBuilder]: For program point L127(lines 127 1036) no Hoare annotation was computed. [2021-10-13 06:51:01,703 INFO L857 garLoopResultBuilder]: For program point L61(lines 61 1168) no Hoare annotation was computed. [2021-10-13 06:51:01,703 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 06:51:01,703 INFO L853 garLoopResultBuilder]: At program point L1251(lines 19 1252) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv50 32)) (= ULTIMATE.start_main_~main__x~0 (_ bv1 32))) [2021-10-13 06:51:01,703 INFO L853 garLoopResultBuilder]: At program point L1119(lines 85 1120) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv50 32)) (= ULTIMATE.start_main_~main__x~0 (_ bv12 32))) [2021-10-13 06:51:01,704 INFO L853 garLoopResultBuilder]: At program point L987(lines 151 988) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv50 32)) (= (_ bv23 32) ULTIMATE.start_main_~main__x~0)) [2021-10-13 06:51:01,704 INFO L853 garLoopResultBuilder]: At program point L855(lines 217 856) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv50 32)) (= (_ bv34 32) ULTIMATE.start_main_~main__x~0)) [2021-10-13 06:51:01,704 INFO L853 garLoopResultBuilder]: At program point L723(lines 283 724) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv50 32)) (= ULTIMATE.start_main_~main__x~0 (_ bv45 32))) [2021-10-13 06:51:01,704 INFO L853 garLoopResultBuilder]: At program point L591(lines 349 592) the Hoare annotation is: (and (= (_ bv56 32) ULTIMATE.start_main_~main__x~0) (= (_ bv56 32) ULTIMATE.start_main_~main__y~0)) [2021-10-13 06:51:01,704 INFO L853 garLoopResultBuilder]: At program point L459(lines 415 460) the Hoare annotation is: (or (and (= (_ bv76 32) ULTIMATE.start_main_~main__y~0) (= (_ bv76 32) ULTIMATE.start_main_~main__x~0)) (and (= (_ bv67 32) ULTIMATE.start_main_~main__x~0) (= (_ bv67 32) ULTIMATE.start_main_~main__y~0)) (and (= (_ bv95 32) ULTIMATE.start_main_~main__x~0) (= (_ bv95 32) ULTIMATE.start_main_~main__y~0)) (and (= (_ bv89 32) ULTIMATE.start_main_~main__y~0) (= (_ bv89 32) ULTIMATE.start_main_~main__x~0)) (and (= (_ bv94 32) ULTIMATE.start_main_~main__x~0) (= (_ bv94 32) ULTIMATE.start_main_~main__y~0)) (and (= (_ bv80 32) ULTIMATE.start_main_~main__y~0) (= (_ bv80 32) ULTIMATE.start_main_~main__x~0)) (and (= (_ bv99 32) ULTIMATE.start_main_~main__y~0) (= (_ bv99 32) ULTIMATE.start_main_~main__x~0)) (and (= (_ bv79 32) ULTIMATE.start_main_~main__x~0) (= (_ bv79 32) ULTIMATE.start_main_~main__y~0)) (and (= (_ bv84 32) ULTIMATE.start_main_~main__x~0) (= (_ bv84 32) ULTIMATE.start_main_~main__y~0)) (and (= (_ bv85 32) ULTIMATE.start_main_~main__y~0) (= (_ bv85 32) ULTIMATE.start_main_~main__x~0)) (and (= ULTIMATE.start_main_~main__x~0 (_ bv92 32)) (= ULTIMATE.start_main_~main__y~0 (_ bv92 32))) (and (= (_ bv72 32) ULTIMATE.start_main_~main__x~0) (= (_ bv72 32) ULTIMATE.start_main_~main__y~0)) (and (= (_ bv98 32) ULTIMATE.start_main_~main__y~0) (= (_ bv98 32) ULTIMATE.start_main_~main__x~0)) (and (= ULTIMATE.start_main_~main__x~0 (_ bv87 32)) (= ULTIMATE.start_main_~main__y~0 (_ bv87 32))) (and (= ULTIMATE.start_main_~main__x~0 (_ bv77 32)) (= ULTIMATE.start_main_~main__y~0 (_ bv77 32))) (and (= (_ bv75 32) ULTIMATE.start_main_~main__x~0) (= (_ bv75 32) ULTIMATE.start_main_~main__y~0)) (and (= ULTIMATE.start_main_~main__x~0 (_ bv81 32)) (= ULTIMATE.start_main_~main__y~0 (_ bv81 32))) (and (= ULTIMATE.start_main_~main__x~0 (_ bv69 32)) (= ULTIMATE.start_main_~main__y~0 (_ bv69 32))) (and (= ULTIMATE.start_main_~main__y~0 (_ bv73 32)) (= ULTIMATE.start_main_~main__x~0 (_ bv73 32))) (and (= (_ bv97 32) ULTIMATE.start_main_~main__y~0) (= (_ bv97 32) ULTIMATE.start_main_~main__x~0)) (and (= (_ bv86 32) ULTIMATE.start_main_~main__x~0) (= (_ bv86 32) ULTIMATE.start_main_~main__y~0)) (and (= (_ bv78 32) ULTIMATE.start_main_~main__x~0) (= (_ bv78 32) ULTIMATE.start_main_~main__y~0)) (and (= (_ bv74 32) ULTIMATE.start_main_~main__y~0) (= (_ bv74 32) ULTIMATE.start_main_~main__x~0)) (and (= (_ bv83 32) ULTIMATE.start_main_~main__x~0) (= (_ bv83 32) ULTIMATE.start_main_~main__y~0)) (and (= (_ bv90 32) ULTIMATE.start_main_~main__x~0) (= (_ bv90 32) ULTIMATE.start_main_~main__y~0)) (and (= ULTIMATE.start_main_~main__y~0 (_ bv71 32)) (= ULTIMATE.start_main_~main__x~0 (_ bv71 32))) (and (= (_ bv96 32) ULTIMATE.start_main_~main__y~0) (= (_ bv96 32) ULTIMATE.start_main_~main__x~0)) (and (= (_ bv70 32) ULTIMATE.start_main_~main__x~0) (= (_ bv70 32) ULTIMATE.start_main_~main__y~0)) (and (= (_ bv91 32) ULTIMATE.start_main_~main__y~0) (= (_ bv91 32) ULTIMATE.start_main_~main__x~0)) (and (= (_ bv100 32) ULTIMATE.start_main_~main__x~0) (= (_ bv100 32) ULTIMATE.start_main_~main__y~0)) (and (= (_ bv82 32) ULTIMATE.start_main_~main__y~0) (= (_ bv82 32) ULTIMATE.start_main_~main__x~0)) (and (= ULTIMATE.start_main_~main__y~0 (_ bv93 32)) (= ULTIMATE.start_main_~main__x~0 (_ bv93 32))) (and (= (_ bv88 32) ULTIMATE.start_main_~main__x~0) (= (_ bv88 32) ULTIMATE.start_main_~main__y~0)) (and (= (_ bv68 32) ULTIMATE.start_main_~main__x~0) (= (_ bv68 32) ULTIMATE.start_main_~main__y~0))) [2021-10-13 06:51:01,705 INFO L857 garLoopResultBuilder]: For program point L361(lines 361 568) no Hoare annotation was computed. [2021-10-13 06:51:01,705 INFO L857 garLoopResultBuilder]: For program point L295(lines 295 700) no Hoare annotation was computed. [2021-10-13 06:51:01,705 INFO L857 garLoopResultBuilder]: For program point L229(lines 229 832) no Hoare annotation was computed. [2021-10-13 06:51:01,705 INFO L857 garLoopResultBuilder]: For program point L163(lines 163 964) no Hoare annotation was computed. [2021-10-13 06:51:01,705 INFO L857 garLoopResultBuilder]: For program point L97(lines 97 1096) no Hoare annotation was computed. [2021-10-13 06:51:01,705 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 1228) no Hoare annotation was computed. [2021-10-13 06:51:01,706 INFO L853 garLoopResultBuilder]: At program point L1155(lines 67 1156) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv50 32)) (= ULTIMATE.start_main_~main__x~0 (_ bv9 32))) [2021-10-13 06:51:01,706 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 06:51:01,706 INFO L853 garLoopResultBuilder]: At program point L1023(lines 133 1024) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv50 32)) (= ULTIMATE.start_main_~main__x~0 (_ bv20 32))) [2021-10-13 06:51:01,706 INFO L853 garLoopResultBuilder]: At program point L891(lines 199 892) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv50 32)) (= (_ bv31 32) ULTIMATE.start_main_~main__x~0)) [2021-10-13 06:51:01,706 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 444) no Hoare annotation was computed. [2021-10-13 06:51:01,706 INFO L853 garLoopResultBuilder]: At program point L759(lines 265 760) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv50 32)) (= (_ bv42 32) ULTIMATE.start_main_~main__x~0)) [2021-10-13 06:51:01,707 INFO L853 garLoopResultBuilder]: At program point L627(lines 331 628) the Hoare annotation is: (and (= (_ bv53 32) ULTIMATE.start_main_~main__y~0) (= (_ bv53 32) ULTIMATE.start_main_~main__x~0)) [2021-10-13 06:51:01,707 INFO L853 garLoopResultBuilder]: At program point L495(lines 397 496) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv64 32)) (= ULTIMATE.start_main_~main__x~0 (_ bv64 32))) [2021-10-13 06:51:01,707 INFO L857 garLoopResultBuilder]: For program point L397(lines 397 496) no Hoare annotation was computed. [2021-10-13 06:51:01,707 INFO L857 garLoopResultBuilder]: For program point L331(lines 331 628) no Hoare annotation was computed. [2021-10-13 06:51:01,707 INFO L857 garLoopResultBuilder]: For program point L265(lines 265 760) no Hoare annotation was computed. [2021-10-13 06:51:01,707 INFO L860 garLoopResultBuilder]: At program point L1256(lines 13 1258) the Hoare annotation is: true [2021-10-13 06:51:01,707 INFO L857 garLoopResultBuilder]: For program point L199(lines 199 892) no Hoare annotation was computed. [2021-10-13 06:51:01,708 INFO L857 garLoopResultBuilder]: For program point L133(lines 133 1024) no Hoare annotation was computed. [2021-10-13 06:51:01,708 INFO L857 garLoopResultBuilder]: For program point L67(lines 67 1156) no Hoare annotation was computed. [2021-10-13 06:51:01,708 INFO L853 garLoopResultBuilder]: At program point L1191(lines 49 1192) the Hoare annotation is: (and (= (_ bv6 32) ULTIMATE.start_main_~main__x~0) (= ULTIMATE.start_main_~main__y~0 (_ bv50 32))) [2021-10-13 06:51:01,708 INFO L853 garLoopResultBuilder]: At program point L1059(lines 115 1060) the Hoare annotation is: (and (= ULTIMATE.start_main_~main__y~0 (_ bv50 32)) (= (_ bv17 32) ULTIMATE.start_main_~main__x~0)) [2021-10-13 06:51:01,712 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 06:51:01,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:51:01 BoogieIcfgContainer [2021-10-13 06:51:01,762 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 06:51:01,763 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 06:51:01,763 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 06:51:01,763 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 06:51:01,764 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:47:39" (3/4) ... [2021-10-13 06:51:01,767 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 06:51:01,803 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-13 06:51:01,806 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 06:51:01,807 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 06:51:01,808 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 06:51:01,952 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 06:51:01,952 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 06:51:01,954 INFO L168 Benchmark]: Toolchain (without parser) took 204131.06 ms. Allocated memory was 65.0 MB in the beginning and 157.3 MB in the end (delta: 92.3 MB). Free memory was 43.6 MB in the beginning and 57.1 MB in the end (delta: -13.6 MB). Peak memory consumption was 78.7 MB. Max. memory is 16.1 GB. [2021-10-13 06:51:01,955 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 65.0 MB. Free memory is still 45.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 06:51:01,955 INFO L168 Benchmark]: CACSL2BoogieTranslator took 614.96 ms. Allocated memory is still 65.0 MB. Free memory was 43.4 MB in the beginning and 40.0 MB in the end (delta: 3.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-13 06:51:01,956 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.00 ms. Allocated memory is still 65.0 MB. Free memory was 40.0 MB in the beginning and 36.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 06:51:01,956 INFO L168 Benchmark]: Boogie Preprocessor took 44.85 ms. Allocated memory is still 65.0 MB. Free memory was 36.9 MB in the beginning and 34.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 06:51:01,957 INFO L168 Benchmark]: RCFGBuilder took 888.68 ms. Allocated memory was 65.0 MB in the beginning and 88.1 MB in the end (delta: 23.1 MB). Free memory was 34.4 MB in the beginning and 50.1 MB in the end (delta: -15.7 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. [2021-10-13 06:51:01,958 INFO L168 Benchmark]: TraceAbstraction took 202307.68 ms. Allocated memory was 88.1 MB in the beginning and 157.3 MB in the end (delta: 69.2 MB). Free memory was 49.7 MB in the beginning and 67.6 MB in the end (delta: -17.9 MB). Peak memory consumption was 89.1 MB. Max. memory is 16.1 GB. [2021-10-13 06:51:01,958 INFO L168 Benchmark]: Witness Printer took 189.28 ms. Allocated memory is still 157.3 MB. Free memory was 67.6 MB in the beginning and 57.1 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 06:51:01,961 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 65.0 MB. Free memory is still 45.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 614.96 ms. Allocated memory is still 65.0 MB. Free memory was 43.4 MB in the beginning and 40.0 MB in the end (delta: 3.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 77.00 ms. Allocated memory is still 65.0 MB. Free memory was 40.0 MB in the beginning and 36.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.85 ms. Allocated memory is still 65.0 MB. Free memory was 36.9 MB in the beginning and 34.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 888.68 ms. Allocated memory was 65.0 MB in the beginning and 88.1 MB in the end (delta: 23.1 MB). Free memory was 34.4 MB in the beginning and 50.1 MB in the end (delta: -15.7 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 202307.68 ms. Allocated memory was 88.1 MB in the beginning and 157.3 MB in the end (delta: 69.2 MB). Free memory was 49.7 MB in the beginning and 67.6 MB in the end (delta: -17.9 MB). Peak memory consumption was 89.1 MB. Max. memory is 16.1 GB. * Witness Printer took 189.28 ms. Allocated memory is still 157.3 MB. Free memory was 67.6 MB in the beginning and 57.1 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 444]: 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, 144 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 202194.7ms, OverallIterations: 9, TraceHistogramMax: 34, EmptinessCheckTime: 43.6ms, AutomataDifference: 71804.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 1822.1ms, InitialAbstractionConstructionTime: 14.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 779 SDtfs, 18556 SDslu, 3017 SDs, 0 SdLazy, 55853 SolverSat, 18630 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 28891.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4462 GetRequests, 3558 SyntacticMatches, 0 SemanticMatches, 904 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14710 ImplicationChecksByTransitivity, 135018.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=208occurred in iteration=8, InterpolantAutomatonStates: 504, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 119.1ms AutomataMinimizationTime, 9 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 68 LocationsWithAnnotation, 68 PreInvPairs, 169 NumberOfFragments, 702 HoareAnnotationTreeSize, 68 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 374.8ms HoareSimplificationTime, 68 FomulaSimplificationsInter, 1054 FormulaSimplificationTreeSizeReductionInter, 1431.7ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 224.5ms SsaConstructionTime, 2101.2ms SatisfiabilityAnalysisTime, 116652.7ms InterpolantComputationTime, 2209 NumberOfCodeBlocks, 2209 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 4392 ConstructedInterpolants, 0 QuantifiedInterpolants, 15292 SizeOfPredicates, 11 NumberOfNonLiveVariables, 4025 ConjunctsInSsa, 748 ConjunctsInUnsatCore, 26 InterpolantComputations, 14 PerfectInterpolantSequences, 335/13470 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: 61]: Loop Invariant Derived loop invariant: 8bv32 == main__x && main__y == 50bv32 - InvariantResult [Line: 199]: Loop Invariant Derived loop invariant: main__y == 50bv32 && 31bv32 == main__x - InvariantResult [Line: 247]: Loop Invariant Derived loop invariant: main__y == 50bv32 && 39bv32 == main__x - InvariantResult [Line: 223]: Loop Invariant Derived loop invariant: 35bv32 == main__x && main__y == 50bv32 - InvariantResult [Line: 241]: Loop Invariant Derived loop invariant: main__y == 50bv32 && 38bv32 == main__x - InvariantResult [Line: 337]: Loop Invariant Derived loop invariant: main__y == 54bv32 && main__x == 54bv32 - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: main__y == 50bv32 && 16bv32 == main__x - InvariantResult [Line: 415]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((76bv32 == main__y && 76bv32 == main__x) || (67bv32 == main__x && 67bv32 == main__y)) || (95bv32 == main__x && 95bv32 == main__y)) || (89bv32 == main__y && 89bv32 == main__x)) || (94bv32 == main__x && 94bv32 == main__y)) || (80bv32 == main__y && 80bv32 == main__x)) || (99bv32 == main__y && 99bv32 == main__x)) || (79bv32 == main__x && 79bv32 == main__y)) || (84bv32 == main__x && 84bv32 == main__y)) || (85bv32 == main__y && 85bv32 == main__x)) || (main__x == 92bv32 && main__y == 92bv32)) || (72bv32 == main__x && 72bv32 == main__y)) || (98bv32 == main__y && 98bv32 == main__x)) || (main__x == 87bv32 && main__y == 87bv32)) || (main__x == 77bv32 && main__y == 77bv32)) || (75bv32 == main__x && 75bv32 == main__y)) || (main__x == 81bv32 && main__y == 81bv32)) || (main__x == 69bv32 && main__y == 69bv32)) || (main__y == 73bv32 && main__x == 73bv32)) || (97bv32 == main__y && 97bv32 == main__x)) || (86bv32 == main__x && 86bv32 == main__y)) || (78bv32 == main__x && 78bv32 == main__y)) || (74bv32 == main__y && 74bv32 == main__x)) || (83bv32 == main__x && 83bv32 == main__y)) || (90bv32 == main__x && 90bv32 == main__y)) || (main__y == 71bv32 && main__x == 71bv32)) || (96bv32 == main__y && 96bv32 == main__x)) || (70bv32 == main__x && 70bv32 == main__y)) || (91bv32 == main__y && 91bv32 == main__x)) || (100bv32 == main__x && 100bv32 == main__y)) || (82bv32 == main__y && 82bv32 == main__x)) || (main__y == 93bv32 && main__x == 93bv32)) || (88bv32 == main__x && 88bv32 == main__y)) || (68bv32 == main__x && 68bv32 == main__y) - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: main__y == 50bv32 && 4bv32 == main__x - InvariantResult [Line: 253]: Loop Invariant Derived loop invariant: main__y == 50bv32 && main__x == 40bv32 - InvariantResult [Line: 355]: Loop Invariant Derived loop invariant: 57bv32 == main__y && 57bv32 == main__x - InvariantResult [Line: 271]: Loop Invariant Derived loop invariant: main__x == 43bv32 && main__y == 50bv32 - InvariantResult [Line: 91]: Loop Invariant Derived loop invariant: main__y == 50bv32 && 13bv32 == main__x - InvariantResult [Line: 181]: Loop Invariant Derived loop invariant: main__y == 50bv32 && 28bv32 == main__x - InvariantResult [Line: 217]: Loop Invariant Derived loop invariant: main__y == 50bv32 && 34bv32 == main__x - InvariantResult [Line: 73]: Loop Invariant Derived loop invariant: main__y == 50bv32 && 10bv32 == main__x - InvariantResult [Line: 139]: Loop Invariant Derived loop invariant: main__y == 50bv32 && main__x == 21bv32 - InvariantResult [Line: 313]: Loop Invariant Derived loop invariant: main__y == 50bv32 && main__x == 50bv32 - InvariantResult [Line: 385]: Loop Invariant Derived loop invariant: 62bv32 == main__y && 62bv32 == main__x - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: main__y == 50bv32 && main__x == 5bv32 - InvariantResult [Line: 205]: Loop Invariant Derived loop invariant: main__y == 50bv32 && main__x == 32bv32 - InvariantResult [Line: 391]: Loop Invariant Derived loop invariant: 63bv32 == main__x && 63bv32 == main__y - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: main__y == 50bv32 && main__x == 9bv32 - InvariantResult [Line: 397]: Loop Invariant Derived loop invariant: main__y == 64bv32 && main__x == 64bv32 - InvariantResult [Line: 229]: Loop Invariant Derived loop invariant: main__y == 50bv32 && 36bv32 == main__x - InvariantResult [Line: 103]: Loop Invariant Derived loop invariant: main__y == 50bv32 && 15bv32 == main__x - InvariantResult [Line: 187]: Loop Invariant Derived loop invariant: main__y == 50bv32 && 29bv32 == main__x - InvariantResult [Line: 85]: Loop Invariant Derived loop invariant: main__y == 50bv32 && main__x == 12bv32 - InvariantResult [Line: 409]: Loop Invariant Derived loop invariant: 66bv32 == main__x && 66bv32 == main__y - InvariantResult [Line: 151]: Loop Invariant Derived loop invariant: main__y == 50bv32 && 23bv32 == main__x - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: main__y == 50bv32 && main__x == 20bv32 - InvariantResult [Line: 259]: Loop Invariant Derived loop invariant: main__y == 50bv32 && 41bv32 == main__x - InvariantResult [Line: 163]: Loop Invariant Derived loop invariant: main__y == 50bv32 && 25bv32 == main__x - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: main__y == 50bv32 && main__x == 30bv32 - InvariantResult [Line: 169]: Loop Invariant Derived loop invariant: main__y == 50bv32 && 26bv32 == main__x - InvariantResult [Line: 403]: Loop Invariant Derived loop invariant: main__y == 65bv32 && main__x == 65bv32 - InvariantResult [Line: 265]: Loop Invariant Derived loop invariant: main__y == 50bv32 && 42bv32 == main__x - InvariantResult [Line: 325]: Loop Invariant Derived loop invariant: 52bv32 == main__y && 52bv32 == main__x - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: main__y == 50bv32 && main__x == 19bv32 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 379]: Loop Invariant Derived loop invariant: main__y == 61bv32 && main__x == 61bv32 - InvariantResult [Line: 211]: Loop Invariant Derived loop invariant: main__y == 50bv32 && 33bv32 == main__x - InvariantResult [Line: 289]: Loop Invariant Derived loop invariant: main__y == 50bv32 && main__x == 46bv32 - InvariantResult [Line: 295]: Loop Invariant Derived loop invariant: main__x == 47bv32 && main__y == 50bv32 - InvariantResult [Line: 157]: Loop Invariant Derived loop invariant: main__y == 50bv32 && main__x == 24bv32 - InvariantResult [Line: 349]: Loop Invariant Derived loop invariant: 56bv32 == main__x && 56bv32 == main__y - InvariantResult [Line: 361]: Loop Invariant Derived loop invariant: 58bv32 == main__x && 58bv32 == main__y - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: main__y == 50bv32 && 7bv32 == main__x - InvariantResult [Line: 373]: Loop Invariant Derived loop invariant: 60bv32 == main__x && 60bv32 == main__y - InvariantResult [Line: 235]: Loop Invariant Derived loop invariant: main__y == 50bv32 && main__x == 37bv32 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 2bv32 == main__x && main__y == 50bv32 - InvariantResult [Line: 319]: Loop Invariant Derived loop invariant: main__y == 51bv32 && main__x == 51bv32 - InvariantResult [Line: 115]: Loop Invariant Derived loop invariant: main__y == 50bv32 && 17bv32 == main__x - InvariantResult [Line: 145]: Loop Invariant Derived loop invariant: main__y == 50bv32 && 22bv32 == main__x - InvariantResult [Line: 343]: Loop Invariant Derived loop invariant: 55bv32 == main__y && 55bv32 == main__x - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: 6bv32 == main__x && main__y == 50bv32 - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: main__y == 50bv32 && 3bv32 == main__x - InvariantResult [Line: 301]: Loop Invariant Derived loop invariant: main__y == 50bv32 && 48bv32 == main__x - InvariantResult [Line: 331]: Loop Invariant Derived loop invariant: 53bv32 == main__y && 53bv32 == main__x - InvariantResult [Line: 97]: Loop Invariant Derived loop invariant: 14bv32 == main__x && main__y == 50bv32 - InvariantResult [Line: 277]: Loop Invariant Derived loop invariant: main__y == 50bv32 && main__x == 44bv32 - InvariantResult [Line: 367]: Loop Invariant Derived loop invariant: 59bv32 == main__x && 59bv32 == main__y - InvariantResult [Line: 79]: Loop Invariant Derived loop invariant: 11bv32 == main__x && main__y == 50bv32 - InvariantResult [Line: 283]: Loop Invariant Derived loop invariant: main__y == 50bv32 && main__x == 45bv32 - InvariantResult [Line: 121]: Loop Invariant Derived loop invariant: main__y == 50bv32 && 18bv32 == main__x - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: main__y == 50bv32 && main__x == 1bv32 - InvariantResult [Line: 307]: Loop Invariant Derived loop invariant: main__y == 50bv32 && 49bv32 == main__x - InvariantResult [Line: 175]: Loop Invariant Derived loop invariant: main__y == 50bv32 && 27bv32 == main__x RESULT: Ultimate proved your program to be correct! [2021-10-13 06:51:02,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72d92ec0-99c1-4e3e-9804-91d8ef3c2b3d/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...