./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem08_label37.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_e4cedc4b-83f0-494a-bb69-cb203541fce0/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cedc4b-83f0-494a-bb69-cb203541fce0/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_e4cedc4b-83f0-494a-bb69-cb203541fce0/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cedc4b-83f0-494a-bb69-cb203541fce0/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem08_label37.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cedc4b-83f0-494a-bb69-cb203541fce0/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_e4cedc4b-83f0-494a-bb69-cb203541fce0/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 6c49c852d7d37be49662b56220b35df51745b826059b3a41c461f4a0b9da992c --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:16:20,224 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:16:20,227 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:16:20,286 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:16:20,287 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:16:20,292 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:16:20,295 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:16:20,299 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:16:20,303 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:16:20,310 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:16:20,311 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:16:20,314 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:16:20,314 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:16:20,318 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:16:20,321 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:16:20,333 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:16:20,335 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:16:20,337 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:16:20,340 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:16:20,351 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:16:20,354 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:16:20,357 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:16:20,361 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:16:20,363 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:16:20,374 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:16:20,375 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:16:20,375 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:16:20,378 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:16:20,379 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:16:20,381 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:16:20,382 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:16:20,383 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:16:20,386 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:16:20,388 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:16:20,390 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:16:20,390 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:16:20,391 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:16:20,391 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:16:20,392 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:16:20,393 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:16:20,394 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:16:20,395 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cedc4b-83f0-494a-bb69-cb203541fce0/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:16:20,460 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:16:20,461 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:16:20,462 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:16:20,462 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:16:20,463 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:16:20,464 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:16:20,471 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:16:20,472 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:16:20,472 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:16:20,472 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:16:20,474 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:16:20,474 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:16:20,474 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:16:20,475 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:16:20,475 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:16:20,475 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:16:20,475 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:16:20,476 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:16:20,476 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:16:20,477 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:16:20,477 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:16:20,477 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:16:20,477 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:16:20,478 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:16:20,478 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:16:20,478 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:16:20,478 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:16:20,479 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:16:20,479 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:16:20,479 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:16:20,479 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:16:20,480 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:16:20,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:16:20,481 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:16:20,481 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:16:20,481 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:16:20,481 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:16:20,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:16:20,482 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:16:20,482 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:16:20,482 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:16:20,482 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_e4cedc4b-83f0-494a-bb69-cb203541fce0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cedc4b-83f0-494a-bb69-cb203541fce0/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c49c852d7d37be49662b56220b35df51745b826059b3a41c461f4a0b9da992c [2021-11-23 17:16:20,843 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:16:20,879 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:16:20,883 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:16:20,885 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:16:20,886 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:16:20,888 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cedc4b-83f0-494a-bb69-cb203541fce0/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/eca-rers2012/Problem08_label37.c [2021-11-23 17:16:21,003 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cedc4b-83f0-494a-bb69-cb203541fce0/bin/utaipan-fb15Y9Yzbl/data/bb5f46960/f207660c50564586b42f1aeb38b5883e/FLAG492177447 [2021-11-23 17:16:25,807 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:16:25,808 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cedc4b-83f0-494a-bb69-cb203541fce0/sv-benchmarks/c/eca-rers2012/Problem08_label37.c [2021-11-23 17:16:26,130 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cedc4b-83f0-494a-bb69-cb203541fce0/bin/utaipan-fb15Y9Yzbl/data/bb5f46960/f207660c50564586b42f1aeb38b5883e/FLAG492177447 [2021-11-23 17:16:26,459 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cedc4b-83f0-494a-bb69-cb203541fce0/bin/utaipan-fb15Y9Yzbl/data/bb5f46960/f207660c50564586b42f1aeb38b5883e [2021-11-23 17:16:26,462 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:16:26,465 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:16:26,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:16:26,467 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:16:26,478 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:16:26,479 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:16:26" (1/1) ... [2021-11-23 17:16:26,480 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1981633b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:16:26, skipping insertion in model container [2021-11-23 17:16:26,481 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:16:26" (1/1) ... [2021-11-23 17:16:26,490 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:16:28,286 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:16:58,615 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_e4cedc4b-83f0-494a-bb69-cb203541fce0/sv-benchmarks/c/eca-rers2012/Problem08_label37.c[5710848,5710861] [2021-11-23 17:16:58,751 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:16:58,761 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:17:13,219 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_e4cedc4b-83f0-494a-bb69-cb203541fce0/sv-benchmarks/c/eca-rers2012/Problem08_label37.c[5710848,5710861] [2021-11-23 17:17:13,230 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:17:17,944 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:17:17,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:17:17 WrapperNode [2021-11-23 17:17:17,945 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:17:17,946 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:17:17,946 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:17:17,946 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:17:17,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:17:17" (1/1) ... [2021-11-23 17:17:19,856 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:17:17" (1/1) ... [2021-11-23 17:17:25,522 INFO L137 Inliner]: procedures = 95, calls = 89, calls flagged for inlining = 84, calls inlined = 84, statements flattened = 184288 [2021-11-23 17:17:25,523 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:17:25,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:17:25,524 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:17:25,524 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:17:25,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:17:17" (1/1) ... [2021-11-23 17:17:25,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:17:17" (1/1) ... [2021-11-23 17:17:26,511 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:17:17" (1/1) ... [2021-11-23 17:17:26,512 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:17:17" (1/1) ... [2021-11-23 17:17:29,328 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:17:17" (1/1) ... [2021-11-23 17:17:29,780 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:17:17" (1/1) ... [2021-11-23 17:17:30,029 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:17:17" (1/1) ... [2021-11-23 17:17:30,774 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:17:30,775 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:17:30,776 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:17:30,776 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:17:30,794 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:17:17" (1/1) ... [2021-11-23 17:17:30,802 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:17:30,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cedc4b-83f0-494a-bb69-cb203541fce0/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:17:30,827 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cedc4b-83f0-494a-bb69-cb203541fce0/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:17:30,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cedc4b-83f0-494a-bb69-cb203541fce0/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:17:30,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:17:30,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:17:30,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:17:30,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:17:31,064 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:17:31,066 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:18:41,793 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:18:42,061 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:18:42,069 INFO L158 Benchmark]: Toolchain (without parser) took 135602.90ms. Allocated memory was 1.3GB in the beginning and 12.0GB in the end (delta: 10.7GB). Free memory was 1.0GB in the beginning and 8.3GB in the end (delta: -7.2GB). Peak memory consumption was 3.8GB. Max. memory is 16.1GB. [2021-11-23 17:18:42,071 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 88.1MB. Free memory was 56.8MB in the beginning and 56.8MB in the end (delta: 30.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:18:42,074 INFO L158 Benchmark]: CACSL2BoogieTranslator took 51478.53ms. Allocated memory was 1.3GB in the beginning and 7.3GB in the end (delta: 6.0GB). Free memory was 1.0GB in the beginning and 5.3GB in the end (delta: -4.2GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. [2021-11-23 17:18:42,075 INFO L158 Benchmark]: Boogie Procedure Inliner took 7577.59ms. Allocated memory was 7.3GB in the beginning and 10.1GB in the end (delta: 2.8GB). Free memory was 5.3GB in the beginning and 7.5GB in the end (delta: -2.2GB). Peak memory consumption was 843.1MB. Max. memory is 16.1GB. [2021-11-23 17:18:42,077 INFO L158 Benchmark]: Boogie Preprocessor took 5250.61ms. Allocated memory is still 10.1GB. Free memory was 7.5GB in the beginning and 6.9GB in the end (delta: 593.5MB). Peak memory consumption was 737.1MB. Max. memory is 16.1GB. [2021-11-23 17:18:42,078 INFO L158 Benchmark]: RCFGBuilder took 71289.93ms. Allocated memory was 10.1GB in the beginning and 12.0GB in the end (delta: 2.0GB). Free memory was 6.9GB in the beginning and 8.3GB in the end (delta: -1.4GB). Peak memory consumption was 879.8MB. Max. memory is 16.1GB. [2021-11-23 17:18:42,093 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 88.1MB. Free memory was 56.8MB in the beginning and 56.8MB in the end (delta: 30.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 51478.53ms. Allocated memory was 1.3GB in the beginning and 7.3GB in the end (delta: 6.0GB). Free memory was 1.0GB in the beginning and 5.3GB in the end (delta: -4.2GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 7577.59ms. Allocated memory was 7.3GB in the beginning and 10.1GB in the end (delta: 2.8GB). Free memory was 5.3GB in the beginning and 7.5GB in the end (delta: -2.2GB). Peak memory consumption was 843.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 5250.61ms. Allocated memory is still 10.1GB. Free memory was 7.5GB in the beginning and 6.9GB in the end (delta: 593.5MB). Peak memory consumption was 737.1MB. Max. memory is 16.1GB. * RCFGBuilder took 71289.93ms. Allocated memory was 10.1GB in the beginning and 12.0GB in the end (delta: 2.0GB). Free memory was 6.9GB in the beginning and 8.3GB in the end (delta: -1.4GB). Peak memory consumption was 879.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:18:42,189 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cedc4b-83f0-494a-bb69-cb203541fce0/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cedc4b-83f0-494a-bb69-cb203541fce0/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cedc4b-83f0-494a-bb69-cb203541fce0/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_e4cedc4b-83f0-494a-bb69-cb203541fce0/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cedc4b-83f0-494a-bb69-cb203541fce0/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem08_label37.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cedc4b-83f0-494a-bb69-cb203541fce0/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_e4cedc4b-83f0-494a-bb69-cb203541fce0/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 6c49c852d7d37be49662b56220b35df51745b826059b3a41c461f4a0b9da992c --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:18:44,972 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:18:44,975 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:18:45,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:18:45,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:18:45,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:18:45,014 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:18:45,017 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:18:45,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:18:45,021 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:18:45,023 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:18:45,025 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:18:45,025 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:18:45,027 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:18:45,029 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:18:45,031 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:18:45,032 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:18:45,033 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:18:45,036 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:18:45,039 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:18:45,041 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:18:45,043 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:18:45,045 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:18:45,046 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:18:45,050 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:18:45,051 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:18:45,051 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:18:45,052 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:18:45,053 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:18:45,055 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:18:45,055 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:18:45,056 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:18:45,058 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:18:45,059 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:18:45,068 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:18:45,068 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:18:45,069 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:18:45,069 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:18:45,070 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:18:45,071 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:18:45,072 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:18:45,073 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cedc4b-83f0-494a-bb69-cb203541fce0/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:18:45,116 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:18:45,116 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:18:45,117 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:18:45,117 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:18:45,118 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:18:45,118 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:18:45,118 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:18:45,118 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:18:45,119 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:18:45,119 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:18:45,119 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:18:45,119 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:18:45,120 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:18:45,120 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:18:45,120 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:18:45,121 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:18:45,121 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:18:45,121 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:18:45,124 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:18:45,124 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:18:45,124 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:18:45,124 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:18:45,125 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:18:45,125 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:18:45,125 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:18:45,125 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:18:45,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:18:45,126 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:18:45,127 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:18:45,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:18:45,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:18:45,128 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:18:45,128 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:18:45,128 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:18:45,128 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:18:45,129 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:18:45,133 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:18:45,134 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:18:45,134 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_e4cedc4b-83f0-494a-bb69-cb203541fce0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cedc4b-83f0-494a-bb69-cb203541fce0/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c49c852d7d37be49662b56220b35df51745b826059b3a41c461f4a0b9da992c [2021-11-23 17:18:45,591 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:18:45,632 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:18:45,636 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:18:45,637 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:18:45,639 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:18:45,641 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cedc4b-83f0-494a-bb69-cb203541fce0/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/eca-rers2012/Problem08_label37.c [2021-11-23 17:18:45,747 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cedc4b-83f0-494a-bb69-cb203541fce0/bin/utaipan-fb15Y9Yzbl/data/f061079d5/4394574adbfa4234af383e366dbb4abf/FLAG7294b10ec [2021-11-23 17:18:50,170 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:18:50,171 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cedc4b-83f0-494a-bb69-cb203541fce0/sv-benchmarks/c/eca-rers2012/Problem08_label37.c [2021-11-23 17:18:50,470 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cedc4b-83f0-494a-bb69-cb203541fce0/bin/utaipan-fb15Y9Yzbl/data/f061079d5/4394574adbfa4234af383e366dbb4abf/FLAG7294b10ec [2021-11-23 17:18:50,754 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cedc4b-83f0-494a-bb69-cb203541fce0/bin/utaipan-fb15Y9Yzbl/data/f061079d5/4394574adbfa4234af383e366dbb4abf [2021-11-23 17:18:50,757 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:18:50,758 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:18:50,760 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:18:50,760 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:18:50,773 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:18:50,774 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:18:50" (1/1) ... [2021-11-23 17:18:50,776 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63f241c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:18:50, skipping insertion in model container [2021-11-23 17:18:50,776 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:18:50" (1/1) ... [2021-11-23 17:18:50,784 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:18:52,472 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:19:20,082 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_e4cedc4b-83f0-494a-bb69-cb203541fce0/sv-benchmarks/c/eca-rers2012/Problem08_label37.c[5710848,5710861] [2021-11-23 17:19:20,217 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:19:20,231 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:19:34,604 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_e4cedc4b-83f0-494a-bb69-cb203541fce0/sv-benchmarks/c/eca-rers2012/Problem08_label37.c[5710848,5710861] [2021-11-23 17:19:34,618 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:19:40,893 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:19:40,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:40 WrapperNode [2021-11-23 17:19:40,894 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:19:40,895 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:19:40,895 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:19:40,895 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:19:40,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:40" (1/1) ... [2021-11-23 17:19:42,375 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:40" (1/1) ... [2021-11-23 17:19:48,870 INFO L137 Inliner]: procedures = 95, calls = 89, calls flagged for inlining = 84, calls inlined = 84, statements flattened = 184205 [2021-11-23 17:19:48,870 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:19:48,871 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:19:48,871 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:19:48,872 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:19:48,884 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:40" (1/1) ... [2021-11-23 17:19:48,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:40" (1/1) ... [2021-11-23 17:19:50,025 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:40" (1/1) ... [2021-11-23 17:19:50,026 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:40" (1/1) ... [2021-11-23 17:19:52,703 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:40" (1/1) ... [2021-11-23 17:19:53,204 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:40" (1/1) ... [2021-11-23 17:19:53,569 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:40" (1/1) ... [2021-11-23 17:19:55,139 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:19:55,142 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:19:55,143 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:19:55,149 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:19:55,150 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:40" (1/1) ... [2021-11-23 17:19:55,166 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:19:55,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cedc4b-83f0-494a-bb69-cb203541fce0/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:19:55,197 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cedc4b-83f0-494a-bb69-cb203541fce0/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:19:55,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cedc4b-83f0-494a-bb69-cb203541fce0/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:19:55,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:19:55,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:19:55,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:19:55,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:19:55,494 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:19:55,496 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:21:51,001 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:21:51,113 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:21:51,114 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 17:21:51,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:21:51 BoogieIcfgContainer [2021-11-23 17:21:51,136 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:21:51,138 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:21:51,138 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:21:51,141 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:21:51,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:18:50" (1/3) ... [2021-11-23 17:21:51,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bf9c395 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:21:51, skipping insertion in model container [2021-11-23 17:21:51,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:40" (2/3) ... [2021-11-23 17:21:51,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bf9c395 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:21:51, skipping insertion in model container [2021-11-23 17:21:51,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:21:51" (3/3) ... [2021-11-23 17:21:51,144 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem08_label37.c [2021-11-23 17:21:51,150 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:21:51,150 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:21:51,254 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:21:51,261 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 17:21:51,262 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 17:21:51,614 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 17:21:54,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17882 [2021-11-23 17:21:54,228 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:21:54,243 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:21:54,249 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:21:54,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:21:54,271 INFO L85 PathProgramCache]: Analyzing trace with hash -83813714, now seen corresponding path program 1 times [2021-11-23 17:21:54,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:21:54,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1982827409] [2021-11-23 17:21:54,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:21:54,504 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:21:54,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cedc4b-83f0-494a-bb69-cb203541fce0/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:21:54,505 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cedc4b-83f0-494a-bb69-cb203541fce0/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:21:54,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4cedc4b-83f0-494a-bb69-cb203541fce0/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process