./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem07_label19.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_2831950f-17d1-466f-8489-7b1e14296ddf/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2831950f-17d1-466f-8489-7b1e14296ddf/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_2831950f-17d1-466f-8489-7b1e14296ddf/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2831950f-17d1-466f-8489-7b1e14296ddf/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem07_label19.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2831950f-17d1-466f-8489-7b1e14296ddf/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_2831950f-17d1-466f-8489-7b1e14296ddf/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 fc5d4d6f14e97a75190aabd6c60aa3116f0be1e5dd3f2f954e6085952c154ca1 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:30:50,267 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:30:50,270 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:30:50,308 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:30:50,309 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:30:50,311 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:30:50,313 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:30:50,316 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:30:50,319 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:30:50,321 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:30:50,322 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:30:50,324 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:30:50,325 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:30:50,327 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:30:50,329 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:30:50,332 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:30:50,333 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:30:50,335 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:30:50,338 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:30:50,341 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:30:50,344 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:30:50,346 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:30:50,348 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:30:50,350 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:30:50,355 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:30:50,355 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:30:50,356 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:30:50,358 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:30:50,358 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:30:50,360 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:30:50,361 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:30:50,362 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:30:50,363 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:30:50,365 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:30:50,366 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:30:50,367 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:30:50,368 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:30:50,369 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:30:50,369 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:30:50,370 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:30:50,372 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:30:50,373 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2831950f-17d1-466f-8489-7b1e14296ddf/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:30:50,406 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:30:50,406 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:30:50,407 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:30:50,407 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:30:50,408 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:30:50,408 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:30:50,409 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:30:50,409 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:30:50,409 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:30:50,409 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:30:50,410 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:30:50,410 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:30:50,410 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:30:50,411 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:30:50,411 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:30:50,411 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:30:50,411 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:30:50,412 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:30:50,413 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:30:50,413 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:30:50,413 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:30:50,414 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:30:50,414 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:30:50,414 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:30:50,414 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:30:50,415 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:30:50,415 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:30:50,415 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:30:50,415 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:30:50,416 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:30:50,416 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:30:50,416 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:30:50,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:30:50,417 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:30:50,417 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:30:50,418 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:30:50,418 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:30:50,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:30:50,418 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:30:50,419 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:30:50,419 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:30:50,419 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_2831950f-17d1-466f-8489-7b1e14296ddf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2831950f-17d1-466f-8489-7b1e14296ddf/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fc5d4d6f14e97a75190aabd6c60aa3116f0be1e5dd3f2f954e6085952c154ca1 [2021-11-23 17:30:50,812 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:30:50,859 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:30:50,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:30:50,863 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:30:50,865 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:30:50,867 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2831950f-17d1-466f-8489-7b1e14296ddf/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/eca-rers2012/Problem07_label19.c [2021-11-23 17:30:50,969 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2831950f-17d1-466f-8489-7b1e14296ddf/bin/utaipan-fb15Y9Yzbl/data/3229faa01/cd200113959042669e365ba9fa157dea/FLAG668070fc6 [2021-11-23 17:30:54,286 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:30:54,287 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2831950f-17d1-466f-8489-7b1e14296ddf/sv-benchmarks/c/eca-rers2012/Problem07_label19.c [2021-11-23 17:30:54,572 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2831950f-17d1-466f-8489-7b1e14296ddf/bin/utaipan-fb15Y9Yzbl/data/3229faa01/cd200113959042669e365ba9fa157dea/FLAG668070fc6 [2021-11-23 17:30:54,978 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2831950f-17d1-466f-8489-7b1e14296ddf/bin/utaipan-fb15Y9Yzbl/data/3229faa01/cd200113959042669e365ba9fa157dea [2021-11-23 17:30:54,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:30:54,983 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:30:54,985 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:30:54,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:30:54,990 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:30:54,992 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:30:54" (1/1) ... [2021-11-23 17:30:54,996 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3af19d95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:30:54, skipping insertion in model container [2021-11-23 17:30:54,997 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:30:54" (1/1) ... [2021-11-23 17:30:55,006 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:30:56,258 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:31:11,420 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_2831950f-17d1-466f-8489-7b1e14296ddf/sv-benchmarks/c/eca-rers2012/Problem07_label19.c[2767452,2767465] [2021-11-23 17:31:11,507 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:31:11,519 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:31:20,362 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_2831950f-17d1-466f-8489-7b1e14296ddf/sv-benchmarks/c/eca-rers2012/Problem07_label19.c[2767452,2767465] [2021-11-23 17:31:20,379 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:31:21,646 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:31:21,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:31:21 WrapperNode [2021-11-23 17:31:21,647 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:31:21,648 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:31:21,649 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:31:21,649 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:31:21,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:31:21" (1/1) ... [2021-11-23 17:31:22,692 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:31:21" (1/1) ... [2021-11-23 17:31:25,686 INFO L137 Inliner]: procedures = 59, calls = 53, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 83773 [2021-11-23 17:31:25,687 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:31:25,688 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:31:25,688 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:31:25,688 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:31:25,700 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:31:21" (1/1) ... [2021-11-23 17:31:25,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:31:21" (1/1) ... [2021-11-23 17:31:26,127 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:31:21" (1/1) ... [2021-11-23 17:31:26,127 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:31:21" (1/1) ... [2021-11-23 17:31:28,080 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:31:21" (1/1) ... [2021-11-23 17:31:28,309 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:31:21" (1/1) ... [2021-11-23 17:31:28,820 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:31:21" (1/1) ... [2021-11-23 17:31:29,861 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:31:29,862 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:31:29,862 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:31:29,862 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:31:29,877 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:31:21" (1/1) ... [2021-11-23 17:31:29,896 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:31:29,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2831950f-17d1-466f-8489-7b1e14296ddf/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:31:29,932 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2831950f-17d1-466f-8489-7b1e14296ddf/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:31:29,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2831950f-17d1-466f-8489-7b1e14296ddf/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:31:29,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:31:29,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:31:29,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:31:29,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:31:30,121 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:31:30,122 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:32:10,383 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:32:10,539 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 17:32:10,545 INFO L158 Benchmark]: Toolchain (without parser) took 75559.96ms. Allocated memory was 310.4MB in the beginning and 8.3GB in the end (delta: 7.9GB). Free memory was 174.7MB in the beginning and 6.7GB in the end (delta: -6.6GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. [2021-11-23 17:32:10,546 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 102.8MB. Free memory was 76.6MB in the beginning and 76.6MB in the end (delta: 29.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:32:10,547 INFO L158 Benchmark]: CACSL2BoogieTranslator took 26662.84ms. Allocated memory was 310.4MB in the beginning and 2.4GB in the end (delta: 2.1GB). Free memory was 174.7MB in the beginning and 1.7GB in the end (delta: -1.6GB). Peak memory consumption was 781.4MB. Max. memory is 16.1GB. [2021-11-23 17:32:10,548 INFO L158 Benchmark]: Boogie Procedure Inliner took 4038.53ms. Allocated memory was 2.4GB in the beginning and 4.8GB in the end (delta: 2.4GB). Free memory was 1.7GB in the beginning and 3.8GB in the end (delta: -2.1GB). Peak memory consumption was 468.7MB. Max. memory is 16.1GB. [2021-11-23 17:32:10,549 INFO L158 Benchmark]: Boogie Preprocessor took 4173.18ms. Allocated memory is still 4.8GB. Free memory was 3.8GB in the beginning and 3.6GB in the end (delta: 200.3MB). Peak memory consumption was 377.5MB. Max. memory is 16.1GB. [2021-11-23 17:32:10,550 INFO L158 Benchmark]: RCFGBuilder took 40680.19ms. Allocated memory was 4.8GB in the beginning and 8.3GB in the end (delta: 3.4GB). Free memory was 3.6GB in the beginning and 6.7GB in the end (delta: -3.2GB). Peak memory consumption was 628.1MB. Max. memory is 16.1GB. [2021-11-23 17:32:10,556 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 102.8MB. Free memory was 76.6MB in the beginning and 76.6MB in the end (delta: 29.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 26662.84ms. Allocated memory was 310.4MB in the beginning and 2.4GB in the end (delta: 2.1GB). Free memory was 174.7MB in the beginning and 1.7GB in the end (delta: -1.6GB). Peak memory consumption was 781.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 4038.53ms. Allocated memory was 2.4GB in the beginning and 4.8GB in the end (delta: 2.4GB). Free memory was 1.7GB in the beginning and 3.8GB in the end (delta: -2.1GB). Peak memory consumption was 468.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 4173.18ms. Allocated memory is still 4.8GB. Free memory was 3.8GB in the beginning and 3.6GB in the end (delta: 200.3MB). Peak memory consumption was 377.5MB. Max. memory is 16.1GB. * RCFGBuilder took 40680.19ms. Allocated memory was 4.8GB in the beginning and 8.3GB in the end (delta: 3.4GB). Free memory was 3.6GB in the beginning and 6.7GB in the end (delta: -3.2GB). Peak memory consumption was 628.1MB. 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 17:32:10,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2831950f-17d1-466f-8489-7b1e14296ddf/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_2831950f-17d1-466f-8489-7b1e14296ddf/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2831950f-17d1-466f-8489-7b1e14296ddf/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_2831950f-17d1-466f-8489-7b1e14296ddf/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2831950f-17d1-466f-8489-7b1e14296ddf/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem07_label19.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2831950f-17d1-466f-8489-7b1e14296ddf/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_2831950f-17d1-466f-8489-7b1e14296ddf/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 fc5d4d6f14e97a75190aabd6c60aa3116f0be1e5dd3f2f954e6085952c154ca1 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:32:13,599 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:32:13,602 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:32:13,643 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:32:13,644 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:32:13,646 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:32:13,648 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:32:13,651 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:32:13,654 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:32:13,655 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:32:13,657 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:32:13,659 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:32:13,659 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:32:13,661 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:32:13,663 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:32:13,665 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:32:13,666 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:32:13,668 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:32:13,670 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:32:13,674 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:32:13,676 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:32:13,678 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:32:13,680 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:32:13,681 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:32:13,686 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:32:13,687 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:32:13,687 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:32:13,689 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:32:13,690 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:32:13,691 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:32:13,692 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:32:13,693 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:32:13,694 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:32:13,695 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:32:13,697 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:32:13,697 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:32:13,698 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:32:13,699 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:32:13,699 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:32:13,701 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:32:13,702 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:32:13,703 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2831950f-17d1-466f-8489-7b1e14296ddf/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:32:13,739 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:32:13,739 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:32:13,740 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:32:13,740 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:32:13,741 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:32:13,741 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:32:13,741 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:32:13,741 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:32:13,742 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:32:13,742 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:32:13,742 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:32:13,742 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:32:13,743 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:32:13,744 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:32:13,744 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:32:13,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:32:13,744 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:32:13,745 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:32:13,745 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:32:13,745 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:32:13,745 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:32:13,745 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:32:13,746 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:32:13,746 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:32:13,746 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:32:13,746 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:32:13,747 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:32:13,747 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:32:13,747 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:32:13,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:32:13,748 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:32:13,748 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:32:13,748 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:32:13,748 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:32:13,749 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:32:13,749 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:32:13,749 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:32:13,749 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:32:13,750 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_2831950f-17d1-466f-8489-7b1e14296ddf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2831950f-17d1-466f-8489-7b1e14296ddf/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fc5d4d6f14e97a75190aabd6c60aa3116f0be1e5dd3f2f954e6085952c154ca1 [2021-11-23 17:32:14,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:32:14,345 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:32:14,349 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:32:14,351 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:32:14,352 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:32:14,353 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2831950f-17d1-466f-8489-7b1e14296ddf/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/eca-rers2012/Problem07_label19.c [2021-11-23 17:32:14,441 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2831950f-17d1-466f-8489-7b1e14296ddf/bin/utaipan-fb15Y9Yzbl/data/4bdf9f4e9/3d346e17d8b24cd7b0df353686101535/FLAG9fb47036a [2021-11-23 17:32:18,096 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:32:18,097 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2831950f-17d1-466f-8489-7b1e14296ddf/sv-benchmarks/c/eca-rers2012/Problem07_label19.c [2021-11-23 17:32:18,286 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2831950f-17d1-466f-8489-7b1e14296ddf/bin/utaipan-fb15Y9Yzbl/data/4bdf9f4e9/3d346e17d8b24cd7b0df353686101535/FLAG9fb47036a [2021-11-23 17:32:18,427 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2831950f-17d1-466f-8489-7b1e14296ddf/bin/utaipan-fb15Y9Yzbl/data/4bdf9f4e9/3d346e17d8b24cd7b0df353686101535 [2021-11-23 17:32:18,430 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:32:18,432 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:32:18,433 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:32:18,434 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:32:18,451 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:32:18,452 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:32:18" (1/1) ... [2021-11-23 17:32:18,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fbf97b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:18, skipping insertion in model container [2021-11-23 17:32:18,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:32:18" (1/1) ... [2021-11-23 17:32:18,462 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:32:19,617 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:32:34,105 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_2831950f-17d1-466f-8489-7b1e14296ddf/sv-benchmarks/c/eca-rers2012/Problem07_label19.c[2767452,2767465] [2021-11-23 17:32:34,189 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:32:34,202 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:32:42,621 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_2831950f-17d1-466f-8489-7b1e14296ddf/sv-benchmarks/c/eca-rers2012/Problem07_label19.c[2767452,2767465] [2021-11-23 17:32:42,642 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:32:44,061 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:32:44,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:44 WrapperNode [2021-11-23 17:32:44,062 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:32:44,063 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:32:44,063 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:32:44,063 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:32:44,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:44" (1/1) ... [2021-11-23 17:32:45,170 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:44" (1/1) ... [2021-11-23 17:32:48,251 INFO L137 Inliner]: procedures = 59, calls = 53, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 83726 [2021-11-23 17:32:48,252 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:32:48,253 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:32:48,253 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:32:48,254 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:32:48,265 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:44" (1/1) ... [2021-11-23 17:32:48,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:44" (1/1) ... [2021-11-23 17:32:48,799 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:44" (1/1) ... [2021-11-23 17:32:48,799 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:44" (1/1) ... [2021-11-23 17:32:50,736 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:44" (1/1) ... [2021-11-23 17:32:51,027 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:44" (1/1) ... [2021-11-23 17:32:51,534 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:44" (1/1) ... [2021-11-23 17:32:52,171 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:32:52,172 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:32:52,172 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:32:52,172 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:32:52,173 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:44" (1/1) ... [2021-11-23 17:32:52,197 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:32:52,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2831950f-17d1-466f-8489-7b1e14296ddf/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:32:52,231 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2831950f-17d1-466f-8489-7b1e14296ddf/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:32:52,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2831950f-17d1-466f-8489-7b1e14296ddf/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:32:52,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:32:52,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:32:52,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:32:52,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:32:52,552 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:32:52,554 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:33:57,205 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:33:57,305 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:33:57,305 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 17:33:57,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:33:57 BoogieIcfgContainer [2021-11-23 17:33:57,319 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:33:57,321 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:33:57,321 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:33:57,325 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:33:57,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:32:18" (1/3) ... [2021-11-23 17:33:57,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@678cc9dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:33:57, skipping insertion in model container [2021-11-23 17:33:57,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:44" (2/3) ... [2021-11-23 17:33:57,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@678cc9dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:33:57, skipping insertion in model container [2021-11-23 17:33:57,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:33:57" (3/3) ... [2021-11-23 17:33:57,329 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem07_label19.c [2021-11-23 17:33:57,336 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:33:57,337 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:33:57,449 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:33:57,458 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 17:33:57,458 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 17:33:57,679 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 17:33:58,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10091 [2021-11-23 17:33:58,962 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:33:58,975 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] [2021-11-23 17:33:58,979 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:33:58,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:33:59,004 INFO L85 PathProgramCache]: Analyzing trace with hash -986135798, now seen corresponding path program 1 times [2021-11-23 17:33:59,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:33:59,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [22021408] [2021-11-23 17:33:59,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:33:59,143 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:33:59,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2831950f-17d1-466f-8489-7b1e14296ddf/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:33:59,144 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2831950f-17d1-466f-8489-7b1e14296ddf/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:33:59,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2831950f-17d1-466f-8489-7b1e14296ddf/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:34:05,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:34:05,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 10228 conjuncts, 102 conjunts are in the unsatisfiable core [2021-11-23 17:34:06,236 INFO L286 TraceCheckSpWp]: Computing forward predicates...