./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem07_label34.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6152bc37-c9a2-49ce-b57a-d6ccc52db4ca/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6152bc37-c9a2-49ce-b57a-d6ccc52db4ca/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6152bc37-c9a2-49ce-b57a-d6ccc52db4ca/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6152bc37-c9a2-49ce-b57a-d6ccc52db4ca/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem07_label34.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6152bc37-c9a2-49ce-b57a-d6ccc52db4ca/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6152bc37-c9a2-49ce-b57a-d6ccc52db4ca/bin/utaipan-fb15Y9Yzbl --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 34e724a92da3ddc47165c49dd7e6015b276ced6a8424035e540d9024f267626a --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:17:37,386 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:17:37,389 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:17:37,428 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:17:37,429 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:17:37,433 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:17:37,435 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:17:37,439 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:17:37,441 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:17:37,447 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:17:37,448 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:17:37,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:17:37,450 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:17:37,453 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:17:37,455 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:17:37,460 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:17:37,462 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:17:37,463 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:17:37,465 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:17:37,472 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:17:37,474 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:17:37,476 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:17:37,480 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:17:37,481 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:17:37,489 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:17:37,490 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:17:37,490 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:17:37,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:17:37,493 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:17:37,494 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:17:37,495 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:17:37,496 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:17:37,498 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:17:37,499 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:17:37,501 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:17:37,501 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:17:37,502 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:17:37,502 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:17:37,502 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:17:37,503 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:17:37,504 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:17:37,505 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6152bc37-c9a2-49ce-b57a-d6ccc52db4ca/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:17:37,538 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:17:37,538 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:17:37,542 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:17:37,543 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:17:37,550 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:17:37,550 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:17:37,550 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:17:37,551 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:17:37,551 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:17:37,551 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:17:37,552 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:17:37,552 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:17:37,553 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:17:37,553 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:17:37,553 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:17:37,553 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:17:37,554 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:17:37,554 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:17:37,555 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:17:37,555 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:17:37,555 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:17:37,555 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:17:37,556 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:17:37,556 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:17:37,556 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:17:37,556 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:17:37,558 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:17:37,558 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:17:37,559 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:17:37,559 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:17:37,559 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:17:37,559 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:17:37,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:17:37,560 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:17:37,560 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:17:37,560 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:17:37,561 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:17:37,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:17:37,561 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:17:37,561 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:17:37,561 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:17:37,562 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_6152bc37-c9a2-49ce-b57a-d6ccc52db4ca/bin/utaipan-fb15Y9Yzbl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6152bc37-c9a2-49ce-b57a-d6ccc52db4ca/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34e724a92da3ddc47165c49dd7e6015b276ced6a8424035e540d9024f267626a [2021-11-23 17:17:37,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:17:37,905 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:17:37,908 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:17:37,910 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:17:37,910 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:17:37,912 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6152bc37-c9a2-49ce-b57a-d6ccc52db4ca/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/eca-rers2012/Problem07_label34.c [2021-11-23 17:17:37,995 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6152bc37-c9a2-49ce-b57a-d6ccc52db4ca/bin/utaipan-fb15Y9Yzbl/data/e59929a35/aba9b0a0622248fe859d79f6fdeadc0d/FLAG86ad394b9 [2021-11-23 17:17:40,519 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:17:40,520 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6152bc37-c9a2-49ce-b57a-d6ccc52db4ca/sv-benchmarks/c/eca-rers2012/Problem07_label34.c [2021-11-23 17:17:40,671 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6152bc37-c9a2-49ce-b57a-d6ccc52db4ca/bin/utaipan-fb15Y9Yzbl/data/e59929a35/aba9b0a0622248fe859d79f6fdeadc0d/FLAG86ad394b9 [2021-11-23 17:17:40,843 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6152bc37-c9a2-49ce-b57a-d6ccc52db4ca/bin/utaipan-fb15Y9Yzbl/data/e59929a35/aba9b0a0622248fe859d79f6fdeadc0d [2021-11-23 17:17:40,845 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:17:40,847 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:17:40,848 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:17:40,849 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:17:40,864 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:17:40,865 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:17:40" (1/1) ... [2021-11-23 17:17:40,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@722b1638 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:17:40, skipping insertion in model container [2021-11-23 17:17:40,867 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:17:40" (1/1) ... [2021-11-23 17:17:40,875 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:17:42,090 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:17:54,369 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6152bc37-c9a2-49ce-b57a-d6ccc52db4ca/sv-benchmarks/c/eca-rers2012/Problem07_label34.c[2772565,2772578] [2021-11-23 17:17:54,443 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:17:54,457 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:18:02,746 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6152bc37-c9a2-49ce-b57a-d6ccc52db4ca/sv-benchmarks/c/eca-rers2012/Problem07_label34.c[2772565,2772578] [2021-11-23 17:18:02,754 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:18:04,043 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:18:04,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:18:04 WrapperNode [2021-11-23 17:18:04,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:18:04,046 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:18:04,046 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:18:04,046 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:18:04,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:18:04" (1/1) ... [2021-11-23 17:18:05,379 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:18:04" (1/1) ... [2021-11-23 17:18:07,939 INFO L137 Inliner]: procedures = 59, calls = 53, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 83773 [2021-11-23 17:18:07,939 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:18:07,941 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:18:07,942 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:18:07,942 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:18:07,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:18:04" (1/1) ... [2021-11-23 17:18:07,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:18:04" (1/1) ... [2021-11-23 17:18:08,854 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:18:04" (1/1) ... [2021-11-23 17:18:08,855 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:18:04" (1/1) ... [2021-11-23 17:18:10,136 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:18:04" (1/1) ... [2021-11-23 17:18:10,357 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:18:04" (1/1) ... [2021-11-23 17:18:10,720 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:18:04" (1/1) ... [2021-11-23 17:18:11,532 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:18:11,545 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:18:11,546 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:18:11,546 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:18:11,548 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:18:04" (1/1) ... [2021-11-23 17:18:11,556 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:18:11,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6152bc37-c9a2-49ce-b57a-d6ccc52db4ca/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:18:11,598 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6152bc37-c9a2-49ce-b57a-d6ccc52db4ca/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:18:11,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6152bc37-c9a2-49ce-b57a-d6ccc52db4ca/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:18:11,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:18:11,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:18:11,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:18:11,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:18:11,885 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:18:11,887 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:18:54,051 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:18:54,468 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:18:54,475 INFO L158 Benchmark]: Toolchain (without parser) took 73625.46ms. Allocated memory was 224.4MB in the beginning and 9.2GB in the end (delta: 9.0GB). Free memory was 105.2MB in the beginning and 7.8GB in the end (delta: -7.7GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. [2021-11-23 17:18:54,477 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 88.1MB. Free memory was 58.2MB in the beginning and 58.2MB in the end (delta: 27.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:18:54,479 INFO L158 Benchmark]: CACSL2BoogieTranslator took 23196.58ms. Allocated memory was 224.4MB in the beginning and 1.8GB in the end (delta: 1.6GB). Free memory was 105.2MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 744.5MB. Max. memory is 16.1GB. [2021-11-23 17:18:54,481 INFO L158 Benchmark]: Boogie Procedure Inliner took 3894.93ms. Allocated memory was 1.8GB in the beginning and 3.7GB in the end (delta: 1.9GB). Free memory was 1.2GB in the beginning and 2.7GB in the end (delta: -1.5GB). Peak memory consumption was 391.1MB. Max. memory is 16.1GB. [2021-11-23 17:18:54,482 INFO L158 Benchmark]: Boogie Preprocessor took 3590.83ms. Allocated memory was 3.7GB in the beginning and 7.0GB in the end (delta: 3.3GB). Free memory was 2.7GB in the beginning and 5.8GB in the end (delta: -3.1GB). Peak memory consumption was 331.4MB. Max. memory is 16.1GB. [2021-11-23 17:18:54,485 INFO L158 Benchmark]: RCFGBuilder took 42925.84ms. Allocated memory was 7.0GB in the beginning and 9.2GB in the end (delta: 2.2GB). Free memory was 5.8GB in the beginning and 7.8GB in the end (delta: -2.0GB). Peak memory consumption was 669.0MB. Max. memory is 16.1GB. [2021-11-23 17:18:54,495 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 88.1MB. Free memory was 58.2MB in the beginning and 58.2MB in the end (delta: 27.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 23196.58ms. Allocated memory was 224.4MB in the beginning and 1.8GB in the end (delta: 1.6GB). Free memory was 105.2MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 744.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 3894.93ms. Allocated memory was 1.8GB in the beginning and 3.7GB in the end (delta: 1.9GB). Free memory was 1.2GB in the beginning and 2.7GB in the end (delta: -1.5GB). Peak memory consumption was 391.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 3590.83ms. Allocated memory was 3.7GB in the beginning and 7.0GB in the end (delta: 3.3GB). Free memory was 2.7GB in the beginning and 5.8GB in the end (delta: -3.1GB). Peak memory consumption was 331.4MB. Max. memory is 16.1GB. * RCFGBuilder took 42925.84ms. Allocated memory was 7.0GB in the beginning and 9.2GB in the end (delta: 2.2GB). Free memory was 5.8GB in the beginning and 7.8GB in the end (delta: -2.0GB). Peak memory consumption was 669.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:18:54,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6152bc37-c9a2-49ce-b57a-d6ccc52db4ca/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6152bc37-c9a2-49ce-b57a-d6ccc52db4ca/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6152bc37-c9a2-49ce-b57a-d6ccc52db4ca/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6152bc37-c9a2-49ce-b57a-d6ccc52db4ca/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6152bc37-c9a2-49ce-b57a-d6ccc52db4ca/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem07_label34.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6152bc37-c9a2-49ce-b57a-d6ccc52db4ca/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6152bc37-c9a2-49ce-b57a-d6ccc52db4ca/bin/utaipan-fb15Y9Yzbl --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 34e724a92da3ddc47165c49dd7e6015b276ced6a8424035e540d9024f267626a --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:18:57,243 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:18:57,247 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:18:57,310 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:18:57,310 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:18:57,317 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:18:57,319 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:18:57,325 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:18:57,329 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:18:57,342 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:18:57,343 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:18:57,344 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:18:57,345 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:18:57,346 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:18:57,348 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:18:57,350 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:18:57,351 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:18:57,352 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:18:57,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:18:57,370 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:18:57,373 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:18:57,375 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:18:57,383 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:18:57,386 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:18:57,391 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:18:57,391 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:18:57,392 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:18:57,395 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:18:57,395 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:18:57,397 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:18:57,397 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:18:57,398 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:18:57,401 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:18:57,402 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:18:57,403 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:18:57,404 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:18:57,405 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:18:57,405 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:18:57,405 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:18:57,408 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:18:57,409 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:18:57,415 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6152bc37-c9a2-49ce-b57a-d6ccc52db4ca/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:18:57,478 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:18:57,478 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:18:57,479 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:18:57,480 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:18:57,481 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:18:57,481 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:18:57,481 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:18:57,482 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:18:57,482 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:18:57,482 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:18:57,483 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:18:57,484 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:18:57,485 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:18:57,486 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:18:57,486 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:18:57,486 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:18:57,486 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:18:57,487 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:18:57,487 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:18:57,487 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:18:57,488 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:18:57,488 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:18:57,488 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:18:57,488 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:18:57,489 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:18:57,489 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:18:57,489 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:18:57,489 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:18:57,490 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:18:57,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:18:57,490 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:18:57,491 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:18:57,491 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:18:57,491 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:18:57,492 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:18:57,492 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:18:57,492 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:18:57,493 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:18:57,493 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_6152bc37-c9a2-49ce-b57a-d6ccc52db4ca/bin/utaipan-fb15Y9Yzbl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6152bc37-c9a2-49ce-b57a-d6ccc52db4ca/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34e724a92da3ddc47165c49dd7e6015b276ced6a8424035e540d9024f267626a [2021-11-23 17:18:57,939 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:18:57,965 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:18:57,968 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:18:57,970 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:18:57,970 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:18:57,972 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6152bc37-c9a2-49ce-b57a-d6ccc52db4ca/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/eca-rers2012/Problem07_label34.c [2021-11-23 17:18:58,046 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6152bc37-c9a2-49ce-b57a-d6ccc52db4ca/bin/utaipan-fb15Y9Yzbl/data/1637774ed/b1cd1a618e50426ab86ab0a6ad88478a/FLAG441b00d37 [2021-11-23 17:19:01,834 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:19:01,834 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6152bc37-c9a2-49ce-b57a-d6ccc52db4ca/sv-benchmarks/c/eca-rers2012/Problem07_label34.c [2021-11-23 17:19:02,008 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6152bc37-c9a2-49ce-b57a-d6ccc52db4ca/bin/utaipan-fb15Y9Yzbl/data/1637774ed/b1cd1a618e50426ab86ab0a6ad88478a/FLAG441b00d37 [2021-11-23 17:19:02,128 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6152bc37-c9a2-49ce-b57a-d6ccc52db4ca/bin/utaipan-fb15Y9Yzbl/data/1637774ed/b1cd1a618e50426ab86ab0a6ad88478a [2021-11-23 17:19:02,131 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:19:02,132 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:19:02,134 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:19:02,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:19:02,139 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:19:02,140 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:19:02" (1/1) ... [2021-11-23 17:19:02,141 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e082e26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:02, skipping insertion in model container [2021-11-23 17:19:02,142 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:19:02" (1/1) ... [2021-11-23 17:19:02,151 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:19:03,233 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:19:17,270 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6152bc37-c9a2-49ce-b57a-d6ccc52db4ca/sv-benchmarks/c/eca-rers2012/Problem07_label34.c[2772565,2772578] [2021-11-23 17:19:17,340 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:19:17,352 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:19:24,739 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6152bc37-c9a2-49ce-b57a-d6ccc52db4ca/sv-benchmarks/c/eca-rers2012/Problem07_label34.c[2772565,2772578] [2021-11-23 17:19:24,748 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:19:25,909 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:19:25,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:25 WrapperNode [2021-11-23 17:19:25,909 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:19:25,910 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:19:25,910 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:19:25,911 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:19:25,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:25" (1/1) ... [2021-11-23 17:19:26,671 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:25" (1/1) ... [2021-11-23 17:19:29,858 INFO L137 Inliner]: procedures = 59, calls = 53, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 83726 [2021-11-23 17:19:29,858 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:19:29,859 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:19:29,860 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:19:29,860 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:19:29,871 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:25" (1/1) ... [2021-11-23 17:19:29,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:25" (1/1) ... [2021-11-23 17:19:30,426 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:25" (1/1) ... [2021-11-23 17:19:30,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:25" (1/1) ... [2021-11-23 17:19:32,238 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:25" (1/1) ... [2021-11-23 17:19:32,498 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:25" (1/1) ... [2021-11-23 17:19:32,804 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:25" (1/1) ... [2021-11-23 17:19:33,291 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:19:33,292 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:19:33,293 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:19:33,293 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:19:33,294 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:25" (1/1) ... [2021-11-23 17:19:33,315 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:19:33,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6152bc37-c9a2-49ce-b57a-d6ccc52db4ca/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:19:33,342 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6152bc37-c9a2-49ce-b57a-d6ccc52db4ca/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:19:33,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6152bc37-c9a2-49ce-b57a-d6ccc52db4ca/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:19:33,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:19:33,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:19:33,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:19:33,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:19:33,571 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:19:33,573 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:20:32,082 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:20:32,165 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:20:32,165 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 17:20:32,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:20:32 BoogieIcfgContainer [2021-11-23 17:20:32,177 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:20:32,179 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:20:32,180 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:20:32,183 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:20:32,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:19:02" (1/3) ... [2021-11-23 17:20:32,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fa9d1bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:20:32, skipping insertion in model container [2021-11-23 17:20:32,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:25" (2/3) ... [2021-11-23 17:20:32,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fa9d1bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:20:32, skipping insertion in model container [2021-11-23 17:20:32,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:20:32" (3/3) ... [2021-11-23 17:20:32,187 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem07_label34.c [2021-11-23 17:20:32,193 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:20:32,193 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:20:32,277 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:20:32,285 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 17:20:32,285 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 17:20:32,481 INFO L276 IsEmpty]: Start isEmpty. Operand has 10257 states, 10255 states have (on average 1.9892735251097027) internal successors, (20400), 10256 states have internal predecessors, (20400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:20:33,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10121 [2021-11-23 17:20:33,635 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:20:33,645 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:20:33,649 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:20:33,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:20:33,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1542617250, now seen corresponding path program 1 times [2021-11-23 17:20:33,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:20:33,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1093139949] [2021-11-23 17:20:33,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:20:33,817 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:20:33,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6152bc37-c9a2-49ce-b57a-d6ccc52db4ca/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:20:33,825 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6152bc37-c9a2-49ce-b57a-d6ccc52db4ca/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:20:33,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6152bc37-c9a2-49ce-b57a-d6ccc52db4ca/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:20:39,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:20:39,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 10258 conjuncts, 102 conjunts are in the unsatisfiable core [2021-11-23 17:20:39,998 INFO L286 TraceCheckSpWp]: Computing forward predicates...