./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem08_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_bbc91938-b833-4566-b608-0ba1a6086452/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc91938-b833-4566-b608-0ba1a6086452/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_bbc91938-b833-4566-b608-0ba1a6086452/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc91938-b833-4566-b608-0ba1a6086452/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem08_label19.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc91938-b833-4566-b608-0ba1a6086452/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_bbc91938-b833-4566-b608-0ba1a6086452/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 ff7bf73fd20082009edf465bfd3bfcb5be7d1807048cf2f90b5cd4a0b283eb9f --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:54:26,330 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:54:26,333 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:54:26,380 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:54:26,381 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:54:26,387 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:54:26,391 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:54:26,397 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:54:26,400 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:54:26,407 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:54:26,408 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:54:26,410 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:54:26,411 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:54:26,414 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:54:26,416 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:54:26,418 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:54:26,420 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:54:26,422 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:54:26,428 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:54:26,440 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:54:26,442 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:54:26,444 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:54:26,448 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:54:26,449 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:54:26,454 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:54:26,454 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:54:26,455 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:54:26,457 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:54:26,458 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:54:26,460 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:54:26,461 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:54:26,463 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:54:26,465 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:54:26,466 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:54:26,468 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:54:26,469 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:54:26,470 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:54:26,470 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:54:26,470 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:54:26,472 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:54:26,472 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:54:26,473 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc91938-b833-4566-b608-0ba1a6086452/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 16:54:26,525 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:54:26,526 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:54:26,527 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:54:26,527 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:54:26,528 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:54:26,535 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:54:26,535 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:54:26,535 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:54:26,536 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:54:26,536 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 16:54:26,541 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:54:26,541 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:54:26,542 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 16:54:26,542 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 16:54:26,542 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:54:26,542 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 16:54:26,543 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 16:54:26,543 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 16:54:26,544 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:54:26,544 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:54:26,544 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 16:54:26,545 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:54:26,545 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:54:26,545 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:54:26,545 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:54:26,546 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:54:26,547 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:54:26,548 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:54:26,548 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:54:26,548 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:54:26,549 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:54:26,549 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:54:26,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:54:26,550 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:54:26,550 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:54:26,550 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:54:26,550 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 16:54:26,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 16:54:26,551 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:54:26,551 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:54:26,551 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:54:26,552 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_bbc91938-b833-4566-b608-0ba1a6086452/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc91938-b833-4566-b608-0ba1a6086452/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff7bf73fd20082009edf465bfd3bfcb5be7d1807048cf2f90b5cd4a0b283eb9f [2021-11-23 16:54:26,862 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:54:26,900 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:54:26,904 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:54:26,906 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:54:26,907 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:54:26,908 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc91938-b833-4566-b608-0ba1a6086452/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/eca-rers2012/Problem08_label19.c [2021-11-23 16:54:26,999 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc91938-b833-4566-b608-0ba1a6086452/bin/utaipan-fb15Y9Yzbl/data/5e4eca57e/d3790ff00e9d4c6cafc7b8bf6dd9266b/FLAGcbbc8a3db [2021-11-23 16:54:30,999 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:54:31,000 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc91938-b833-4566-b608-0ba1a6086452/sv-benchmarks/c/eca-rers2012/Problem08_label19.c [2021-11-23 16:54:31,302 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc91938-b833-4566-b608-0ba1a6086452/bin/utaipan-fb15Y9Yzbl/data/5e4eca57e/d3790ff00e9d4c6cafc7b8bf6dd9266b/FLAGcbbc8a3db [2021-11-23 16:54:31,368 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc91938-b833-4566-b608-0ba1a6086452/bin/utaipan-fb15Y9Yzbl/data/5e4eca57e/d3790ff00e9d4c6cafc7b8bf6dd9266b [2021-11-23 16:54:31,371 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:54:31,372 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:54:31,374 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:54:31,374 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:54:31,382 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:54:31,384 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:54:31" (1/1) ... [2021-11-23 16:54:31,386 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b0a90eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:54:31, skipping insertion in model container [2021-11-23 16:54:31,387 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:54:31" (1/1) ... [2021-11-23 16:54:31,395 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:54:32,967 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:54:59,702 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_bbc91938-b833-4566-b608-0ba1a6086452/sv-benchmarks/c/eca-rers2012/Problem08_label19.c[5714053,5714066] [2021-11-23 16:54:59,832 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:54:59,841 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:55:13,465 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_bbc91938-b833-4566-b608-0ba1a6086452/sv-benchmarks/c/eca-rers2012/Problem08_label19.c[5714053,5714066] [2021-11-23 16:55:13,472 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:55:19,102 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:55:19,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:55:19 WrapperNode [2021-11-23 16:55:19,103 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:55:19,104 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:55:19,104 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:55:19,104 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:55:19,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:55:19" (1/1) ... [2021-11-23 16:55:20,409 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:55:19" (1/1) ... [2021-11-23 16:55:25,480 INFO L137 Inliner]: procedures = 95, calls = 89, calls flagged for inlining = 84, calls inlined = 84, statements flattened = 184288 [2021-11-23 16:55:25,480 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:55:25,481 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:55:25,482 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:55:25,482 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:55:25,489 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:55:19" (1/1) ... [2021-11-23 16:55:25,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:55:19" (1/1) ... [2021-11-23 16:55:26,464 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:55:19" (1/1) ... [2021-11-23 16:55:26,465 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:55:19" (1/1) ... [2021-11-23 16:55:28,954 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:55:19" (1/1) ... [2021-11-23 16:55:30,264 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:55:19" (1/1) ... [2021-11-23 16:55:30,879 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:55:19" (1/1) ... [2021-11-23 16:55:31,632 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:55:31,634 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:55:31,634 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:55:31,635 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:55:31,638 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:55:19" (1/1) ... [2021-11-23 16:55:31,669 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:55:31,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc91938-b833-4566-b608-0ba1a6086452/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:55:31,720 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc91938-b833-4566-b608-0ba1a6086452/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:55:31,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc91938-b833-4566-b608-0ba1a6086452/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:55:31,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:55:31,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 16:55:31,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:55:31,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:55:32,051 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:55:32,055 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:56:44,168 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:56:44,434 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 16:56:44,441 INFO L158 Benchmark]: Toolchain (without parser) took 133066.01ms. Allocated memory was 1.1GB in the beginning and 12.0GB in the end (delta: 10.8GB). Free memory was 782.2MB in the beginning and 8.2GB in the end (delta: -7.4GB). Peak memory consumption was 3.7GB. Max. memory is 16.1GB. [2021-11-23 16:56:44,443 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 86.0MB. Free memory was 64.5MB in the beginning and 64.4MB in the end (delta: 69.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:56:44,445 INFO L158 Benchmark]: CACSL2BoogieTranslator took 47729.25ms. Allocated memory was 1.1GB in the beginning and 5.9GB in the end (delta: 4.8GB). Free memory was 782.2MB in the beginning and 4.0GB in the end (delta: -3.2GB). Peak memory consumption was 2.2GB. Max. memory is 16.1GB. [2021-11-23 16:56:44,447 INFO L158 Benchmark]: Boogie Procedure Inliner took 6376.86ms. Allocated memory was 5.9GB in the beginning and 8.7GB in the end (delta: 2.8GB). Free memory was 4.0GB in the beginning and 6.1GB in the end (delta: -2.2GB). Peak memory consumption was 947.4MB. Max. memory is 16.1GB. [2021-11-23 16:56:44,448 INFO L158 Benchmark]: Boogie Preprocessor took 6151.48ms. Allocated memory is still 8.7GB. Free memory was 6.1GB in the beginning and 5.7GB in the end (delta: 453.0MB). Peak memory consumption was 744.5MB. Max. memory is 16.1GB. [2021-11-23 16:56:44,450 INFO L158 Benchmark]: RCFGBuilder took 72803.20ms. Allocated memory was 8.7GB in the beginning and 12.0GB in the end (delta: 3.2GB). Free memory was 5.7GB in the beginning and 8.2GB in the end (delta: -2.5GB). Peak memory consumption was 985.7MB. Max. memory is 16.1GB. [2021-11-23 16:56:44,458 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 86.0MB. Free memory was 64.5MB in the beginning and 64.4MB in the end (delta: 69.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 47729.25ms. Allocated memory was 1.1GB in the beginning and 5.9GB in the end (delta: 4.8GB). Free memory was 782.2MB in the beginning and 4.0GB in the end (delta: -3.2GB). Peak memory consumption was 2.2GB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 6376.86ms. Allocated memory was 5.9GB in the beginning and 8.7GB in the end (delta: 2.8GB). Free memory was 4.0GB in the beginning and 6.1GB in the end (delta: -2.2GB). Peak memory consumption was 947.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 6151.48ms. Allocated memory is still 8.7GB. Free memory was 6.1GB in the beginning and 5.7GB in the end (delta: 453.0MB). Peak memory consumption was 744.5MB. Max. memory is 16.1GB. * RCFGBuilder took 72803.20ms. Allocated memory was 8.7GB in the beginning and 12.0GB in the end (delta: 3.2GB). Free memory was 5.7GB in the beginning and 8.2GB in the end (delta: -2.5GB). Peak memory consumption was 985.7MB. 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 16:56:44,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc91938-b833-4566-b608-0ba1a6086452/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_bbc91938-b833-4566-b608-0ba1a6086452/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc91938-b833-4566-b608-0ba1a6086452/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_bbc91938-b833-4566-b608-0ba1a6086452/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc91938-b833-4566-b608-0ba1a6086452/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem08_label19.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc91938-b833-4566-b608-0ba1a6086452/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_bbc91938-b833-4566-b608-0ba1a6086452/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 ff7bf73fd20082009edf465bfd3bfcb5be7d1807048cf2f90b5cd4a0b283eb9f --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:56:47,319 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:56:47,323 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:56:47,362 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:56:47,362 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:56:47,364 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:56:47,366 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:56:47,370 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:56:47,373 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:56:47,374 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:56:47,376 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:56:47,378 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:56:47,379 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:56:47,380 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:56:47,383 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:56:47,385 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:56:47,386 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:56:47,388 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:56:47,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:56:47,394 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:56:47,397 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:56:47,399 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:56:47,401 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:56:47,402 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:56:47,407 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:56:47,408 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:56:47,409 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:56:47,410 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:56:47,411 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:56:47,413 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:56:47,413 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:56:47,415 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:56:47,416 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:56:47,417 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:56:47,419 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:56:47,420 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:56:47,421 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:56:47,421 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:56:47,429 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:56:47,431 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:56:47,432 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:56:47,433 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc91938-b833-4566-b608-0ba1a6086452/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 16:56:47,465 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:56:47,465 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:56:47,466 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:56:47,466 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:56:47,467 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:56:47,467 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:56:47,468 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:56:47,468 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:56:47,469 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:56:47,469 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:56:47,469 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:56:47,470 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:56:47,471 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:56:47,471 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:56:47,471 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:56:47,472 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:56:47,472 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:56:47,472 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:56:47,473 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:56:47,473 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 16:56:47,473 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 16:56:47,473 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 16:56:47,474 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:56:47,474 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:56:47,474 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:56:47,475 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:56:47,475 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:56:47,475 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 16:56:47,475 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:56:47,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:56:47,476 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:56:47,476 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:56:47,477 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:56:47,477 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 16:56:47,477 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 16:56:47,477 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:56:47,478 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:56:47,478 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:56:47,478 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_bbc91938-b833-4566-b608-0ba1a6086452/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc91938-b833-4566-b608-0ba1a6086452/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff7bf73fd20082009edf465bfd3bfcb5be7d1807048cf2f90b5cd4a0b283eb9f [2021-11-23 16:56:47,900 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:56:47,939 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:56:47,942 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:56:47,943 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:56:47,944 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:56:47,946 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc91938-b833-4566-b608-0ba1a6086452/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/eca-rers2012/Problem08_label19.c [2021-11-23 16:56:48,032 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc91938-b833-4566-b608-0ba1a6086452/bin/utaipan-fb15Y9Yzbl/data/59c958562/3872c9443160410c8356a9b48d5ff1cb/FLAG3a91b2f61 [2021-11-23 16:56:52,648 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:56:52,649 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc91938-b833-4566-b608-0ba1a6086452/sv-benchmarks/c/eca-rers2012/Problem08_label19.c [2021-11-23 16:56:52,938 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc91938-b833-4566-b608-0ba1a6086452/bin/utaipan-fb15Y9Yzbl/data/59c958562/3872c9443160410c8356a9b48d5ff1cb/FLAG3a91b2f61 [2021-11-23 16:56:53,022 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc91938-b833-4566-b608-0ba1a6086452/bin/utaipan-fb15Y9Yzbl/data/59c958562/3872c9443160410c8356a9b48d5ff1cb [2021-11-23 16:56:53,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:56:53,026 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:56:53,027 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:56:53,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:56:53,038 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:56:53,039 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:56:53" (1/1) ... [2021-11-23 16:56:53,040 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a25b6a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:56:53, skipping insertion in model container [2021-11-23 16:56:53,041 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:56:53" (1/1) ... [2021-11-23 16:56:53,054 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:56:54,861 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:57:23,767 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_bbc91938-b833-4566-b608-0ba1a6086452/sv-benchmarks/c/eca-rers2012/Problem08_label19.c[5714053,5714066] [2021-11-23 16:57:23,910 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:57:23,924 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:57:39,230 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_bbc91938-b833-4566-b608-0ba1a6086452/sv-benchmarks/c/eca-rers2012/Problem08_label19.c[5714053,5714066] [2021-11-23 16:57:39,238 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:57:44,492 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:57:44,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:57:44 WrapperNode [2021-11-23 16:57:44,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:57:44,494 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:57:44,494 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:57:44,494 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:57:44,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:57:44" (1/1) ... [2021-11-23 16:57:46,249 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:57:44" (1/1) ... [2021-11-23 16:57:51,669 INFO L137 Inliner]: procedures = 95, calls = 89, calls flagged for inlining = 84, calls inlined = 84, statements flattened = 184205 [2021-11-23 16:57:51,670 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:57:51,671 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:57:51,671 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:57:51,671 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:57:51,685 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:57:44" (1/1) ... [2021-11-23 16:57:51,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:57:44" (1/1) ... [2021-11-23 16:57:53,298 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:57:44" (1/1) ... [2021-11-23 16:57:53,298 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:57:44" (1/1) ... [2021-11-23 16:57:56,024 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:57:44" (1/1) ... [2021-11-23 16:57:56,525 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:57:44" (1/1) ... [2021-11-23 16:57:57,034 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:57:44" (1/1) ... [2021-11-23 16:57:57,959 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:57:57,961 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:57:57,962 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:57:57,962 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:57:57,963 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:57:44" (1/1) ... [2021-11-23 16:57:57,981 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:57:58,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc91938-b833-4566-b608-0ba1a6086452/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:57:58,016 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc91938-b833-4566-b608-0ba1a6086452/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:57:58,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc91938-b833-4566-b608-0ba1a6086452/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:57:58,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:57:58,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 16:57:58,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:57:58,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:57:58,284 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:57:58,286 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:59:49,541 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:59:49,652 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 16:59:49,652 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 16:59:49,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:59:49 BoogieIcfgContainer [2021-11-23 16:59:49,677 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 16:59:49,681 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 16:59:49,681 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 16:59:49,687 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 16:59:49,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:56:53" (1/3) ... [2021-11-23 16:59:49,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a455ffd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:59:49, skipping insertion in model container [2021-11-23 16:59:49,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:57:44" (2/3) ... [2021-11-23 16:59:49,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a455ffd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:59:49, skipping insertion in model container [2021-11-23 16:59:49,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:59:49" (3/3) ... [2021-11-23 16:59:49,691 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem08_label19.c [2021-11-23 16:59:49,696 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 16:59:49,696 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 16:59:49,827 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 16:59:49,836 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 16:59:49,837 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 16:59:50,508 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 16:59:53,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17901 [2021-11-23 16:59:53,024 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 16:59:53,045 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 16:59:53,052 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 16:59:53,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 16:59:53,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1107513256, now seen corresponding path program 1 times [2021-11-23 16:59:53,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 16:59:53,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [696253799] [2021-11-23 16:59:53,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 16:59:53,267 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 16:59:53,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc91938-b833-4566-b608-0ba1a6086452/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 16:59:53,270 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc91938-b833-4566-b608-0ba1a6086452/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 16:59:53,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbc91938-b833-4566-b608-0ba1a6086452/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:00:01,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:00:01,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 18110 conjuncts, 150 conjunts are in the unsatisfiable core [2021-11-23 17:00:02,670 INFO L286 TraceCheckSpWp]: Computing forward predicates...