./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem07_label54.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_5521487f-b48d-4183-aaf4-730e66bfba92/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5521487f-b48d-4183-aaf4-730e66bfba92/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_5521487f-b48d-4183-aaf4-730e66bfba92/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5521487f-b48d-4183-aaf4-730e66bfba92/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem07_label54.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5521487f-b48d-4183-aaf4-730e66bfba92/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_5521487f-b48d-4183-aaf4-730e66bfba92/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 d4dfd97ceb6762815130c4cc12d2984f7fae2d1a6dacba5070982f7eed440802 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:32:05,488 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:32:05,491 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:32:05,553 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:32:05,554 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:32:05,561 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:32:05,563 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:32:05,568 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:32:05,571 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:32:05,579 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:32:05,580 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:32:05,582 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:32:05,582 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:32:05,583 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:32:05,585 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:32:05,586 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:32:05,587 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:32:05,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:32:05,590 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:32:05,593 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:32:05,595 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:32:05,597 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:32:05,598 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:32:05,599 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:32:05,604 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:32:05,604 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:32:05,605 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:32:05,606 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:32:05,607 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:32:05,608 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:32:05,609 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:32:05,610 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:32:05,611 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:32:05,612 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:32:05,614 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:32:05,614 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:32:05,615 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:32:05,615 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:32:05,615 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:32:05,617 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:32:05,617 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:32:05,619 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5521487f-b48d-4183-aaf4-730e66bfba92/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:32:05,657 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:32:05,658 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:32:05,658 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:32:05,658 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:32:05,659 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:32:05,659 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:32:05,659 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:32:05,660 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:32:05,660 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:32:05,660 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:32:05,660 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:32:05,661 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:32:05,661 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:32:05,661 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:32:05,661 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:32:05,662 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:32:05,662 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:32:05,662 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:32:05,663 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:32:05,663 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:32:05,664 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:32:05,664 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:32:05,664 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:32:05,664 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:32:05,664 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:32:05,665 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:32:05,665 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:32:05,665 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:32:05,665 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:32:05,666 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:32:05,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:32:05,666 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:32:05,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:32:05,667 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:32:05,667 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:32:05,667 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:32:05,667 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:32:05,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:32:05,668 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:32:05,668 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:32:05,668 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:32:05,669 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_5521487f-b48d-4183-aaf4-730e66bfba92/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5521487f-b48d-4183-aaf4-730e66bfba92/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4dfd97ceb6762815130c4cc12d2984f7fae2d1a6dacba5070982f7eed440802 [2021-11-23 17:32:06,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:32:06,094 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:32:06,099 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:32:06,102 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:32:06,103 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:32:06,105 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5521487f-b48d-4183-aaf4-730e66bfba92/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/eca-rers2012/Problem07_label54.c [2021-11-23 17:32:06,198 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5521487f-b48d-4183-aaf4-730e66bfba92/bin/utaipan-fb15Y9Yzbl/data/f28e6d5cb/91558c4837df4b1d83bda50e1f05ca5b/FLAG70d657075 [2021-11-23 17:32:09,925 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:32:09,926 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5521487f-b48d-4183-aaf4-730e66bfba92/sv-benchmarks/c/eca-rers2012/Problem07_label54.c [2021-11-23 17:32:10,097 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5521487f-b48d-4183-aaf4-730e66bfba92/bin/utaipan-fb15Y9Yzbl/data/f28e6d5cb/91558c4837df4b1d83bda50e1f05ca5b/FLAG70d657075 [2021-11-23 17:32:10,193 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5521487f-b48d-4183-aaf4-730e66bfba92/bin/utaipan-fb15Y9Yzbl/data/f28e6d5cb/91558c4837df4b1d83bda50e1f05ca5b [2021-11-23 17:32:10,196 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:32:10,198 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:32:10,200 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:32:10,200 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:32:10,205 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:32:10,206 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:32:10" (1/1) ... [2021-11-23 17:32:10,207 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4862a42e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:10, skipping insertion in model container [2021-11-23 17:32:10,208 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:32:10" (1/1) ... [2021-11-23 17:32:10,216 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:32:11,833 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:32:25,117 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_5521487f-b48d-4183-aaf4-730e66bfba92/sv-benchmarks/c/eca-rers2012/Problem07_label54.c[2775294,2775307] [2021-11-23 17:32:25,190 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:32:25,198 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:32:32,302 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_5521487f-b48d-4183-aaf4-730e66bfba92/sv-benchmarks/c/eca-rers2012/Problem07_label54.c[2775294,2775307] [2021-11-23 17:32:32,307 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:32:33,414 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:32:33,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:33 WrapperNode [2021-11-23 17:32:33,415 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:32:33,416 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:32:33,416 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:32:33,417 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:32:33,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:33" (1/1) ... [2021-11-23 17:32:34,266 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:33" (1/1) ... [2021-11-23 17:32:36,731 INFO L137 Inliner]: procedures = 59, calls = 53, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 83773 [2021-11-23 17:32:36,732 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:32:36,733 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:32:36,733 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:32:36,734 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:32:36,744 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:33" (1/1) ... [2021-11-23 17:32:36,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:33" (1/1) ... [2021-11-23 17:32:37,199 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:33" (1/1) ... [2021-11-23 17:32:37,199 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:33" (1/1) ... [2021-11-23 17:32:38,448 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:33" (1/1) ... [2021-11-23 17:32:39,027 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:33" (1/1) ... [2021-11-23 17:32:39,301 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:33" (1/1) ... [2021-11-23 17:32:39,694 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:32:39,695 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:32:39,696 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:32:39,696 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:32:39,697 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:33" (1/1) ... [2021-11-23 17:32:39,719 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:32:39,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5521487f-b48d-4183-aaf4-730e66bfba92/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:32:39,769 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5521487f-b48d-4183-aaf4-730e66bfba92/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:32:39,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5521487f-b48d-4183-aaf4-730e66bfba92/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:32:39,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:32:39,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:32:39,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:32:39,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:32:39,958 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:32:39,960 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:33:17,015 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:33:17,141 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 17:33:17,148 INFO L158 Benchmark]: Toolchain (without parser) took 66947.22ms. Allocated memory was 406.8MB in the beginning and 8.8GB in the end (delta: 8.4GB). Free memory was 233.0MB in the beginning and 6.9GB in the end (delta: -6.7GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. [2021-11-23 17:33:17,150 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 119.5MB. Free memory was 98.3MB in the beginning and 98.3MB in the end (delta: 73.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:33:17,152 INFO L158 Benchmark]: CACSL2BoogieTranslator took 23215.31ms. Allocated memory was 406.8MB in the beginning and 2.2GB in the end (delta: 1.8GB). Free memory was 233.0MB in the beginning and 1.5GB in the end (delta: -1.2GB). Peak memory consumption was 955.3MB. Max. memory is 16.1GB. [2021-11-23 17:33:17,154 INFO L158 Benchmark]: Boogie Procedure Inliner took 3316.25ms. Allocated memory was 2.2GB in the beginning and 4.3GB in the end (delta: 2.1GB). Free memory was 1.5GB in the beginning and 3.3GB in the end (delta: -1.8GB). Peak memory consumption was 389.0MB. Max. memory is 16.1GB. [2021-11-23 17:33:17,155 INFO L158 Benchmark]: Boogie Preprocessor took 2961.18ms. Allocated memory is still 4.3GB. Free memory was 3.3GB in the beginning and 3.0GB in the end (delta: 221.2MB). Peak memory consumption was 341.8MB. Max. memory is 16.1GB. [2021-11-23 17:33:17,157 INFO L158 Benchmark]: RCFGBuilder took 37448.93ms. Allocated memory was 4.3GB in the beginning and 8.8GB in the end (delta: 4.5GB). Free memory was 3.0GB in the beginning and 6.9GB in the end (delta: -3.9GB). Peak memory consumption was 627.0MB. Max. memory is 16.1GB. [2021-11-23 17:33:17,168 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 119.5MB. Free memory was 98.3MB in the beginning and 98.3MB in the end (delta: 73.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 23215.31ms. Allocated memory was 406.8MB in the beginning and 2.2GB in the end (delta: 1.8GB). Free memory was 233.0MB in the beginning and 1.5GB in the end (delta: -1.2GB). Peak memory consumption was 955.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 3316.25ms. Allocated memory was 2.2GB in the beginning and 4.3GB in the end (delta: 2.1GB). Free memory was 1.5GB in the beginning and 3.3GB in the end (delta: -1.8GB). Peak memory consumption was 389.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 2961.18ms. Allocated memory is still 4.3GB. Free memory was 3.3GB in the beginning and 3.0GB in the end (delta: 221.2MB). Peak memory consumption was 341.8MB. Max. memory is 16.1GB. * RCFGBuilder took 37448.93ms. Allocated memory was 4.3GB in the beginning and 8.8GB in the end (delta: 4.5GB). Free memory was 3.0GB in the beginning and 6.9GB in the end (delta: -3.9GB). Peak memory consumption was 627.0MB. 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 17:33:17,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5521487f-b48d-4183-aaf4-730e66bfba92/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_5521487f-b48d-4183-aaf4-730e66bfba92/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5521487f-b48d-4183-aaf4-730e66bfba92/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_5521487f-b48d-4183-aaf4-730e66bfba92/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5521487f-b48d-4183-aaf4-730e66bfba92/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem07_label54.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5521487f-b48d-4183-aaf4-730e66bfba92/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_5521487f-b48d-4183-aaf4-730e66bfba92/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 d4dfd97ceb6762815130c4cc12d2984f7fae2d1a6dacba5070982f7eed440802 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:33:20,076 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:33:20,078 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:33:20,120 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:33:20,120 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:33:20,122 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:33:20,123 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:33:20,126 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:33:20,133 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:33:20,141 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:33:20,142 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:33:20,145 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:33:20,146 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:33:20,149 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:33:20,152 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:33:20,157 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:33:20,158 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:33:20,160 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:33:20,163 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:33:20,170 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:33:20,172 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:33:20,174 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:33:20,176 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:33:20,178 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:33:20,188 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:33:20,188 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:33:20,189 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:33:20,190 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:33:20,191 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:33:20,192 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:33:20,192 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:33:20,193 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:33:20,194 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:33:20,195 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:33:20,196 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:33:20,196 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:33:20,197 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:33:20,198 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:33:20,210 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:33:20,217 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:33:20,218 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:33:20,224 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5521487f-b48d-4183-aaf4-730e66bfba92/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:33:20,276 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:33:20,276 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:33:20,277 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:33:20,277 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:33:20,278 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:33:20,279 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:33:20,279 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:33:20,279 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:33:20,279 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:33:20,279 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:33:20,281 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:33:20,281 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:33:20,283 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:33:20,283 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:33:20,283 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:33:20,283 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:33:20,284 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:33:20,284 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:33:20,284 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:33:20,284 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:33:20,285 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:33:20,285 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:33:20,285 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:33:20,285 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:33:20,286 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:33:20,286 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:33:20,286 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:33:20,286 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:33:20,287 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:33:20,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:33:20,287 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:33:20,287 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:33:20,288 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:33:20,288 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:33:20,289 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:33:20,289 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:33:20,289 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:33:20,290 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:33:20,290 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_5521487f-b48d-4183-aaf4-730e66bfba92/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5521487f-b48d-4183-aaf4-730e66bfba92/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4dfd97ceb6762815130c4cc12d2984f7fae2d1a6dacba5070982f7eed440802 [2021-11-23 17:33:20,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:33:20,775 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:33:20,779 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:33:20,780 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:33:20,781 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:33:20,782 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5521487f-b48d-4183-aaf4-730e66bfba92/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/eca-rers2012/Problem07_label54.c [2021-11-23 17:33:20,866 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5521487f-b48d-4183-aaf4-730e66bfba92/bin/utaipan-fb15Y9Yzbl/data/fefd2db84/8ac7cb8605674be49f644c90480cae62/FLAG13105cf25 [2021-11-23 17:33:24,028 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:33:24,029 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5521487f-b48d-4183-aaf4-730e66bfba92/sv-benchmarks/c/eca-rers2012/Problem07_label54.c [2021-11-23 17:33:24,196 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5521487f-b48d-4183-aaf4-730e66bfba92/bin/utaipan-fb15Y9Yzbl/data/fefd2db84/8ac7cb8605674be49f644c90480cae62/FLAG13105cf25 [2021-11-23 17:33:24,375 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5521487f-b48d-4183-aaf4-730e66bfba92/bin/utaipan-fb15Y9Yzbl/data/fefd2db84/8ac7cb8605674be49f644c90480cae62 [2021-11-23 17:33:24,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:33:24,380 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:33:24,382 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:33:24,382 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:33:24,386 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:33:24,387 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:33:24" (1/1) ... [2021-11-23 17:33:24,388 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fbab191 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:24, skipping insertion in model container [2021-11-23 17:33:24,389 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:33:24" (1/1) ... [2021-11-23 17:33:24,396 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:33:25,361 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:33:37,540 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_5521487f-b48d-4183-aaf4-730e66bfba92/sv-benchmarks/c/eca-rers2012/Problem07_label54.c[2775294,2775307] [2021-11-23 17:33:37,601 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:33:37,613 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:33:44,748 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_5521487f-b48d-4183-aaf4-730e66bfba92/sv-benchmarks/c/eca-rers2012/Problem07_label54.c[2775294,2775307] [2021-11-23 17:33:44,753 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:33:45,941 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:33:45,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:45 WrapperNode [2021-11-23 17:33:45,942 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:33:45,943 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:33:45,943 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:33:45,943 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:33:45,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:45" (1/1) ... [2021-11-23 17:33:46,680 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:45" (1/1) ... [2021-11-23 17:33:49,483 INFO L137 Inliner]: procedures = 59, calls = 53, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 83726 [2021-11-23 17:33:49,483 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:33:49,484 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:33:49,484 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:33:49,485 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:33:49,492 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:45" (1/1) ... [2021-11-23 17:33:49,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:45" (1/1) ... [2021-11-23 17:33:50,016 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:45" (1/1) ... [2021-11-23 17:33:50,017 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:45" (1/1) ... [2021-11-23 17:33:51,478 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:45" (1/1) ... [2021-11-23 17:33:51,699 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:45" (1/1) ... [2021-11-23 17:33:52,073 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:45" (1/1) ... [2021-11-23 17:33:52,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:33:52,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:33:52,597 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:33:52,597 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:33:52,598 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:45" (1/1) ... [2021-11-23 17:33:52,611 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:33:52,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5521487f-b48d-4183-aaf4-730e66bfba92/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:33:52,632 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5521487f-b48d-4183-aaf4-730e66bfba92/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:33:52,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5521487f-b48d-4183-aaf4-730e66bfba92/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:33:52,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:33:52,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:33:52,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:33:52,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:33:52,818 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:33:52,820 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:34:46,812 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:34:46,888 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:34:46,888 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 17:34:46,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:34:46 BoogieIcfgContainer [2021-11-23 17:34:46,900 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:34:46,902 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:34:46,902 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:34:46,905 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:34:46,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:33:24" (1/3) ... [2021-11-23 17:34:46,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66bacde1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:34:46, skipping insertion in model container [2021-11-23 17:34:46,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:45" (2/3) ... [2021-11-23 17:34:46,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66bacde1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:34:46, skipping insertion in model container [2021-11-23 17:34:46,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:34:46" (3/3) ... [2021-11-23 17:34:46,909 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem07_label54.c [2021-11-23 17:34:46,914 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:34:46,915 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:34:46,999 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:34:47,007 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 17:34:47,007 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 17:34:47,194 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 17:34:48,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10137 [2021-11-23 17:34:48,185 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:34:48,195 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] [2021-11-23 17:34:48,199 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:34:48,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:34:48,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1368219678, now seen corresponding path program 1 times [2021-11-23 17:34:48,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:34:48,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [75991102] [2021-11-23 17:34:48,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:34:48,350 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:34:48,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5521487f-b48d-4183-aaf4-730e66bfba92/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:34:48,351 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5521487f-b48d-4183-aaf4-730e66bfba92/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:34:48,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5521487f-b48d-4183-aaf4-730e66bfba92/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:34:52,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:34:53,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 10274 conjuncts, 102 conjunts are in the unsatisfiable core [2021-11-23 17:34:53,647 INFO L286 TraceCheckSpWp]: Computing forward predicates...