./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem08_label24.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_8be0effb-3513-477b-b4cb-136f019edb52/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be0effb-3513-477b-b4cb-136f019edb52/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_8be0effb-3513-477b-b4cb-136f019edb52/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be0effb-3513-477b-b4cb-136f019edb52/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem08_label24.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be0effb-3513-477b-b4cb-136f019edb52/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_8be0effb-3513-477b-b4cb-136f019edb52/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 c2075fde204e2df46664636e530c83aa3783a363565df5999d6391ff95fb47f5 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:30:59,330 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:30:59,334 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:30:59,401 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:30:59,402 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:30:59,407 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:30:59,409 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:30:59,414 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:30:59,417 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:30:59,424 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:30:59,426 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:30:59,428 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:30:59,429 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:30:59,432 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:30:59,435 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:30:59,444 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:30:59,447 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:30:59,448 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:30:59,451 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:30:59,460 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:30:59,463 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:30:59,465 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:30:59,469 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:30:59,470 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:30:59,481 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:30:59,482 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:30:59,483 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:30:59,485 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:30:59,486 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:30:59,488 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:30:59,489 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:30:59,490 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:30:59,492 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:30:59,494 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:30:59,496 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:30:59,497 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:30:59,498 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:30:59,498 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:30:59,498 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:30:59,500 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:30:59,501 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:30:59,502 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be0effb-3513-477b-b4cb-136f019edb52/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:30:59,556 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:30:59,556 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:30:59,561 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:30:59,561 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:30:59,563 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:30:59,563 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:30:59,564 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:30:59,564 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:30:59,564 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:30:59,565 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:30:59,566 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:30:59,566 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:30:59,567 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:30:59,567 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:30:59,567 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:30:59,568 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:30:59,568 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:30:59,568 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:30:59,569 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:30:59,569 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:30:59,570 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:30:59,570 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:30:59,570 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:30:59,571 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:30:59,571 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:30:59,571 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:30:59,573 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:30:59,574 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:30:59,574 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:30:59,574 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:30:59,575 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:30:59,575 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:30:59,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:30:59,576 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:30:59,576 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:30:59,576 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:30:59,577 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:30:59,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:30:59,577 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:30:59,577 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:30:59,578 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:30:59,578 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_8be0effb-3513-477b-b4cb-136f019edb52/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be0effb-3513-477b-b4cb-136f019edb52/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2075fde204e2df46664636e530c83aa3783a363565df5999d6391ff95fb47f5 [2021-11-23 17:30:59,925 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:30:59,973 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:30:59,977 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:30:59,978 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:30:59,980 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:30:59,981 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be0effb-3513-477b-b4cb-136f019edb52/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/eca-rers2012/Problem08_label24.c [2021-11-23 17:31:00,073 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be0effb-3513-477b-b4cb-136f019edb52/bin/utaipan-fb15Y9Yzbl/data/cc477e459/917fa2f6031844bdb92fa5ceb59919df/FLAGe9f8bfd48 [2021-11-23 17:31:04,628 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:31:04,630 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be0effb-3513-477b-b4cb-136f019edb52/sv-benchmarks/c/eca-rers2012/Problem08_label24.c [2021-11-23 17:31:04,956 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be0effb-3513-477b-b4cb-136f019edb52/bin/utaipan-fb15Y9Yzbl/data/cc477e459/917fa2f6031844bdb92fa5ceb59919df/FLAGe9f8bfd48 [2021-11-23 17:31:05,051 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be0effb-3513-477b-b4cb-136f019edb52/bin/utaipan-fb15Y9Yzbl/data/cc477e459/917fa2f6031844bdb92fa5ceb59919df [2021-11-23 17:31:05,054 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:31:05,056 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:31:05,058 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:31:05,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:31:05,074 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:31:05,075 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:31:05" (1/1) ... [2021-11-23 17:31:05,076 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16d82cef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:31:05, skipping insertion in model container [2021-11-23 17:31:05,076 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:31:05" (1/1) ... [2021-11-23 17:31:05,085 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:31:07,649 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:31:39,654 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_8be0effb-3513-477b-b4cb-136f019edb52/sv-benchmarks/c/eca-rers2012/Problem08_label24.c[5709502,5709515] [2021-11-23 17:31:39,812 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:31:39,823 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:31:57,207 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_8be0effb-3513-477b-b4cb-136f019edb52/sv-benchmarks/c/eca-rers2012/Problem08_label24.c[5709502,5709515] [2021-11-23 17:31:57,221 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:32:03,283 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:32:03,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:03 WrapperNode [2021-11-23 17:32:03,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:32:03,285 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:32:03,285 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:32:03,285 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:32:03,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:03" (1/1) ... [2021-11-23 17:32:04,972 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:03" (1/1) ... [2021-11-23 17:32:11,013 INFO L137 Inliner]: procedures = 95, calls = 89, calls flagged for inlining = 84, calls inlined = 84, statements flattened = 184288 [2021-11-23 17:32:11,014 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:32:11,015 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:32:11,015 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:32:11,015 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:32:11,024 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:03" (1/1) ... [2021-11-23 17:32:11,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:03" (1/1) ... [2021-11-23 17:32:12,029 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:03" (1/1) ... [2021-11-23 17:32:12,030 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:03" (1/1) ... [2021-11-23 17:32:14,831 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:03" (1/1) ... [2021-11-23 17:32:15,312 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:03" (1/1) ... [2021-11-23 17:32:15,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:03" (1/1) ... [2021-11-23 17:32:16,489 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:32:16,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:32:16,491 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:32:16,492 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:32:16,493 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:03" (1/1) ... [2021-11-23 17:32:16,525 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:32:16,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be0effb-3513-477b-b4cb-136f019edb52/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:32:16,553 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be0effb-3513-477b-b4cb-136f019edb52/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:32:17,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be0effb-3513-477b-b4cb-136f019edb52/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:32:17,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:32:17,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:32:17,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:32:17,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:32:17,849 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:32:17,861 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:33:29,240 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:33:29,496 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 17:33:29,502 INFO L158 Benchmark]: Toolchain (without parser) took 144443.40ms. Allocated memory was 553.6MB in the beginning and 11.8GB in the end (delta: 11.3GB). Free memory was 278.2MB in the beginning and 8.0GB in the end (delta: -7.7GB). Peak memory consumption was 3.7GB. Max. memory is 16.1GB. [2021-11-23 17:33:29,503 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 75.5MB. Free memory was 48.8MB in the beginning and 48.8MB in the end (delta: 28.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:33:29,505 INFO L158 Benchmark]: CACSL2BoogieTranslator took 58225.88ms. Allocated memory was 553.6MB in the beginning and 7.0GB in the end (delta: 6.5GB). Free memory was 278.2MB in the beginning and 5.1GB in the end (delta: -4.8GB). Peak memory consumption was 2.5GB. Max. memory is 16.1GB. [2021-11-23 17:33:29,507 INFO L158 Benchmark]: Boogie Procedure Inliner took 7729.20ms. Allocated memory was 7.0GB in the beginning and 9.7GB in the end (delta: 2.7GB). Free memory was 5.1GB in the beginning and 7.1GB in the end (delta: -2.0GB). Peak memory consumption was 847.2MB. Max. memory is 16.1GB. [2021-11-23 17:33:29,508 INFO L158 Benchmark]: Boogie Preprocessor took 5474.72ms. Allocated memory is still 9.7GB. Free memory was 7.1GB in the beginning and 6.5GB in the end (delta: 601.9MB). Peak memory consumption was 625.0MB. Max. memory is 16.1GB. [2021-11-23 17:33:29,509 INFO L158 Benchmark]: RCFGBuilder took 73007.57ms. Allocated memory was 9.7GB in the beginning and 11.8GB in the end (delta: 2.1GB). Free memory was 6.5GB in the beginning and 8.0GB in the end (delta: -1.4GB). Peak memory consumption was 820.0MB. Max. memory is 16.1GB. [2021-11-23 17:33:29,518 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 75.5MB. Free memory was 48.8MB in the beginning and 48.8MB in the end (delta: 28.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 58225.88ms. Allocated memory was 553.6MB in the beginning and 7.0GB in the end (delta: 6.5GB). Free memory was 278.2MB in the beginning and 5.1GB in the end (delta: -4.8GB). Peak memory consumption was 2.5GB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 7729.20ms. Allocated memory was 7.0GB in the beginning and 9.7GB in the end (delta: 2.7GB). Free memory was 5.1GB in the beginning and 7.1GB in the end (delta: -2.0GB). Peak memory consumption was 847.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 5474.72ms. Allocated memory is still 9.7GB. Free memory was 7.1GB in the beginning and 6.5GB in the end (delta: 601.9MB). Peak memory consumption was 625.0MB. Max. memory is 16.1GB. * RCFGBuilder took 73007.57ms. Allocated memory was 9.7GB in the beginning and 11.8GB in the end (delta: 2.1GB). Free memory was 6.5GB in the beginning and 8.0GB in the end (delta: -1.4GB). Peak memory consumption was 820.0MB. 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 17:33:29,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be0effb-3513-477b-b4cb-136f019edb52/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_8be0effb-3513-477b-b4cb-136f019edb52/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be0effb-3513-477b-b4cb-136f019edb52/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_8be0effb-3513-477b-b4cb-136f019edb52/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be0effb-3513-477b-b4cb-136f019edb52/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem08_label24.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be0effb-3513-477b-b4cb-136f019edb52/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_8be0effb-3513-477b-b4cb-136f019edb52/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 c2075fde204e2df46664636e530c83aa3783a363565df5999d6391ff95fb47f5 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:33:32,242 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:33:32,247 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:33:32,291 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:33:32,292 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:33:32,296 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:33:32,298 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:33:32,300 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:33:32,302 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:33:32,304 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:33:32,305 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:33:32,306 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:33:32,307 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:33:32,308 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:33:32,309 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:33:32,311 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:33:32,312 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:33:32,313 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:33:32,321 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:33:32,324 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:33:32,326 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:33:32,327 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:33:32,329 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:33:32,332 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:33:32,337 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:33:32,341 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:33:32,341 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:33:32,342 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:33:32,344 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:33:32,345 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:33:32,345 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:33:32,346 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:33:32,348 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:33:32,349 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:33:32,350 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:33:32,351 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:33:32,352 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:33:32,352 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:33:32,352 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:33:32,354 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:33:32,355 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:33:32,356 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be0effb-3513-477b-b4cb-136f019edb52/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:33:32,404 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:33:32,406 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:33:32,406 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:33:32,407 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:33:32,408 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:33:32,408 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:33:32,408 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:33:32,408 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:33:32,409 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:33:32,409 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:33:32,410 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:33:32,410 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:33:32,412 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:33:32,412 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:33:32,412 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:33:32,412 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:33:32,413 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:33:32,413 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:33:32,413 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:33:32,413 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:33:32,414 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:33:32,414 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:33:32,414 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:33:32,414 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:33:32,415 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:33:32,415 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:33:32,415 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:33:32,415 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:33:32,416 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:33:32,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:33:32,416 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:33:32,416 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:33:32,417 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:33:32,417 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:33:32,417 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:33:32,418 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:33:32,418 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:33:32,418 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:33:32,418 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_8be0effb-3513-477b-b4cb-136f019edb52/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be0effb-3513-477b-b4cb-136f019edb52/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2075fde204e2df46664636e530c83aa3783a363565df5999d6391ff95fb47f5 [2021-11-23 17:33:32,810 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:33:32,834 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:33:32,838 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:33:32,840 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:33:32,841 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:33:32,842 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be0effb-3513-477b-b4cb-136f019edb52/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/eca-rers2012/Problem08_label24.c [2021-11-23 17:33:32,920 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be0effb-3513-477b-b4cb-136f019edb52/bin/utaipan-fb15Y9Yzbl/data/d87e61c42/eee16a3500724ec5bba4c920891d4036/FLAG9b4e30c0e [2021-11-23 17:33:36,905 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:33:36,906 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be0effb-3513-477b-b4cb-136f019edb52/sv-benchmarks/c/eca-rers2012/Problem08_label24.c [2021-11-23 17:33:37,197 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be0effb-3513-477b-b4cb-136f019edb52/bin/utaipan-fb15Y9Yzbl/data/d87e61c42/eee16a3500724ec5bba4c920891d4036/FLAG9b4e30c0e [2021-11-23 17:33:37,415 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be0effb-3513-477b-b4cb-136f019edb52/bin/utaipan-fb15Y9Yzbl/data/d87e61c42/eee16a3500724ec5bba4c920891d4036 [2021-11-23 17:33:37,418 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:33:37,422 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:33:37,426 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:33:37,426 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:33:37,430 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:33:37,432 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:33:37" (1/1) ... [2021-11-23 17:33:37,433 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e2d886 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:37, skipping insertion in model container [2021-11-23 17:33:37,433 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:33:37" (1/1) ... [2021-11-23 17:33:37,441 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:33:39,513 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:34:05,705 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_8be0effb-3513-477b-b4cb-136f019edb52/sv-benchmarks/c/eca-rers2012/Problem08_label24.c[5709502,5709515] [2021-11-23 17:34:05,834 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:34:05,845 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:34:19,612 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_8be0effb-3513-477b-b4cb-136f019edb52/sv-benchmarks/c/eca-rers2012/Problem08_label24.c[5709502,5709515] [2021-11-23 17:34:19,627 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:34:24,374 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:34:24,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:24 WrapperNode [2021-11-23 17:34:24,375 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:34:24,376 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:34:24,376 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:34:24,376 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:34:24,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:24" (1/1) ... [2021-11-23 17:34:25,613 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:24" (1/1) ... [2021-11-23 17:34:31,530 INFO L137 Inliner]: procedures = 95, calls = 89, calls flagged for inlining = 84, calls inlined = 84, statements flattened = 184205 [2021-11-23 17:34:31,530 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:34:31,556 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:34:31,556 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:34:31,557 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:34:31,565 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:24" (1/1) ... [2021-11-23 17:34:31,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:24" (1/1) ... [2021-11-23 17:34:32,649 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:24" (1/1) ... [2021-11-23 17:34:32,650 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:24" (1/1) ... [2021-11-23 17:34:35,666 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:24" (1/1) ... [2021-11-23 17:34:36,351 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:24" (1/1) ... [2021-11-23 17:34:36,926 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:24" (1/1) ... [2021-11-23 17:34:37,838 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:34:37,841 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:34:37,842 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:34:37,842 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:34:37,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:24" (1/1) ... [2021-11-23 17:34:37,857 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:34:37,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be0effb-3513-477b-b4cb-136f019edb52/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:34:37,890 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be0effb-3513-477b-b4cb-136f019edb52/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:34:37,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be0effb-3513-477b-b4cb-136f019edb52/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:34:37,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:34:37,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:34:37,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:34:37,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:34:38,294 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:34:38,296 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:36:23,354 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:36:23,509 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:36:23,509 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 17:36:23,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:36:23 BoogieIcfgContainer [2021-11-23 17:36:23,535 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:36:23,537 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:36:23,537 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:36:23,541 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:36:23,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:33:37" (1/3) ... [2021-11-23 17:36:23,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54c425fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:36:23, skipping insertion in model container [2021-11-23 17:36:23,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:34:24" (2/3) ... [2021-11-23 17:36:23,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54c425fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:36:23, skipping insertion in model container [2021-11-23 17:36:23,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:36:23" (3/3) ... [2021-11-23 17:36:23,544 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem08_label24.c [2021-11-23 17:36:23,550 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:36:23,550 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:36:23,684 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:36:23,697 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 17:36:23,698 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 17:36:24,043 INFO L276 IsEmpty]: Start isEmpty. Operand has 23215 states, 23213 states have (on average 1.8828673588075646) internal successors, (43707), 23214 states have internal predecessors, (43707), 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 17:36:26,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17874 [2021-11-23 17:36:26,888 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:36:26,909 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:36:26,916 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:36:26,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:36:26,943 INFO L85 PathProgramCache]: Analyzing trace with hash 2028388750, now seen corresponding path program 1 times [2021-11-23 17:36:27,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:36:27,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1970199602] [2021-11-23 17:36:27,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:36:27,157 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:36:27,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be0effb-3513-477b-b4cb-136f019edb52/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:36:27,158 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be0effb-3513-477b-b4cb-136f019edb52/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:36:27,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8be0effb-3513-477b-b4cb-136f019edb52/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:36:35,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:36:35,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 18083 conjuncts, 150 conjunts are in the unsatisfiable core [2021-11-23 17:36:36,765 INFO L286 TraceCheckSpWp]: Computing forward predicates...