./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M4-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82fb5e05-7373-49ec-a30c-dda2a8c2609f/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82fb5e05-7373-49ec-a30c-dda2a8c2609f/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82fb5e05-7373-49ec-a30c-dda2a8c2609f/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82fb5e05-7373-49ec-a30c-dda2a8c2609f/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M4-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82fb5e05-7373-49ec-a30c-dda2a8c2609f/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82fb5e05-7373-49ec-a30c-dda2a8c2609f/bin/utaipan-Q6hlc19bkW --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 13ab100f899a57e5eca7e0526610c7b743f980d5e72b80cc180b4d884d35b9a9 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 14:27:59,248 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:27:59,251 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:27:59,290 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:27:59,291 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:27:59,292 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:27:59,294 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:27:59,305 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:27:59,308 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:27:59,311 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:27:59,312 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:27:59,313 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:27:59,314 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:27:59,315 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:27:59,316 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:27:59,317 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:27:59,318 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:27:59,324 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:27:59,326 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:27:59,335 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:27:59,339 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:27:59,342 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:27:59,343 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:27:59,343 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:27:59,347 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:27:59,347 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:27:59,347 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:27:59,348 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:27:59,349 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:27:59,350 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:27:59,350 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:27:59,351 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:27:59,351 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:27:59,352 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:27:59,353 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:27:59,354 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:27:59,354 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:27:59,355 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:27:59,355 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:27:59,356 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:27:59,357 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:27:59,358 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82fb5e05-7373-49ec-a30c-dda2a8c2609f/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 14:27:59,392 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:27:59,393 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:27:59,394 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:27:59,394 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:27:59,395 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:27:59,395 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:27:59,395 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:27:59,396 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:27:59,396 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:27:59,396 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:27:59,397 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:27:59,397 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:27:59,397 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:27:59,398 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:27:59,398 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:27:59,398 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:27:59,398 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:27:59,398 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:27:59,399 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:27:59,399 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:27:59,399 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:27:59,400 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:27:59,400 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:27:59,400 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:27:59,400 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:27:59,400 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:27:59,400 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:27:59,401 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:27:59,401 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:27:59,401 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:27:59,401 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:27:59,402 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:27:59,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:27:59,402 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:27:59,402 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:27:59,403 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:27:59,403 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:27:59,403 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:27:59,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:27:59,403 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:27:59,403 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:27:59,404 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_82fb5e05-7373-49ec-a30c-dda2a8c2609f/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82fb5e05-7373-49ec-a30c-dda2a8c2609f/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13ab100f899a57e5eca7e0526610c7b743f980d5e72b80cc180b4d884d35b9a9 [2022-11-23 14:27:59,672 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:27:59,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:27:59,697 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:27:59,699 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:27:59,699 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:27:59,701 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82fb5e05-7373-49ec-a30c-dda2a8c2609f/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M4-2.c [2022-11-23 14:28:02,690 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:28:03,350 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:28:03,350 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82fb5e05-7373-49ec-a30c-dda2a8c2609f/sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M4-2.c [2022-11-23 14:28:03,405 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82fb5e05-7373-49ec-a30c-dda2a8c2609f/bin/utaipan-Q6hlc19bkW/data/4b8d1633b/7d47e553c8364be39eba577b6b33803b/FLAG3f23a4ccf [2022-11-23 14:28:03,425 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82fb5e05-7373-49ec-a30c-dda2a8c2609f/bin/utaipan-Q6hlc19bkW/data/4b8d1633b/7d47e553c8364be39eba577b6b33803b [2022-11-23 14:28:03,432 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:28:03,434 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:28:03,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:28:03,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:28:03,443 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:28:03,444 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:28:03" (1/1) ... [2022-11-23 14:28:03,446 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51502df5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:03, skipping insertion in model container [2022-11-23 14:28:03,446 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:28:03" (1/1) ... [2022-11-23 14:28:03,453 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:28:03,680 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:28:03,912 WARN L237 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_82fb5e05-7373-49ec-a30c-dda2a8c2609f/sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M4-2.c[2320,2333] [2022-11-23 14:28:05,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:28:05,287 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:28:05,310 WARN L237 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_82fb5e05-7373-49ec-a30c-dda2a8c2609f/sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M4-2.c[2320,2333] [2022-11-23 14:28:06,403 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:28:06,448 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:28:06,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:06 WrapperNode [2022-11-23 14:28:06,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:28:06,450 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:28:06,450 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:28:06,451 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:28:06,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:06" (1/1) ... [2022-11-23 14:28:07,007 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:06" (1/1) ... [2022-11-23 14:28:08,499 INFO L138 Inliner]: procedures = 72, calls = 21416, calls flagged for inlining = 28, calls inlined = 28, statements flattened = 45878 [2022-11-23 14:28:08,500 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:28:08,501 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:28:08,501 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:28:08,501 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:28:08,517 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:06" (1/1) ... [2022-11-23 14:28:08,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:06" (1/1) ... [2022-11-23 14:28:09,031 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:06" (1/1) ... [2022-11-23 14:28:09,032 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:06" (1/1) ... [2022-11-23 14:28:10,306 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:06" (1/1) ... [2022-11-23 14:28:10,410 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:06" (1/1) ... [2022-11-23 14:28:10,520 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:06" (1/1) ... [2022-11-23 14:28:10,583 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:06" (1/1) ... [2022-11-23 14:28:10,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:28:10,761 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:28:10,761 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:28:10,761 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:28:10,762 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:06" (1/1) ... [2022-11-23 14:28:10,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:28:10,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82fb5e05-7373-49ec-a30c-dda2a8c2609f/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:28:10,796 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82fb5e05-7373-49ec-a30c-dda2a8c2609f/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:28:10,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82fb5e05-7373-49ec-a30c-dda2a8c2609f/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:28:10,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:28:10,843 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_trans [2022-11-23 14:28:10,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_trans [2022-11-23 14:28:10,843 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-11-23 14:28:10,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-11-23 14:28:10,843 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-11-23 14:28:10,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-11-23 14:28:10,844 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-11-23 14:28:10,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-11-23 14:28:10,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:28:10,844 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-11-23 14:28:10,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-11-23 14:28:10,845 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-11-23 14:28:10,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-11-23 14:28:10,845 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-11-23 14:28:10,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-11-23 14:28:10,845 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-11-23 14:28:10,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-11-23 14:28:10,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:28:10,846 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-11-23 14:28:10,846 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-11-23 14:28:10,846 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-11-23 14:28:10,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-11-23 14:28:10,847 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-11-23 14:28:10,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-11-23 14:28:10,848 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-11-23 14:28:10,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-11-23 14:28:10,849 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-11-23 14:28:10,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-11-23 14:28:10,849 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-11-23 14:28:10,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-11-23 14:28:10,849 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-11-23 14:28:10,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-11-23 14:28:10,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:28:10,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:28:10,850 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-11-23 14:28:10,851 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-11-23 14:28:10,851 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-11-23 14:28:10,851 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-11-23 14:28:10,851 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-11-23 14:28:10,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-11-23 14:28:10,851 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-11-23 14:28:10,852 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-11-23 14:28:10,852 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-23 14:28:10,852 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-23 14:28:10,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:28:10,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:28:10,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:28:10,853 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-11-23 14:28:10,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-11-23 14:28:10,853 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-11-23 14:28:10,854 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-11-23 14:28:10,854 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-11-23 14:28:10,854 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-11-23 14:28:10,854 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-11-23 14:28:10,854 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-11-23 14:28:13,518 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:28:13,521 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:31:36,211 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:31:39,914 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:31:39,914 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 14:31:39,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:31:39 BoogieIcfgContainer [2022-11-23 14:31:39,926 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:31:39,928 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:31:39,928 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:31:39,931 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:31:39,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:28:03" (1/3) ... [2022-11-23 14:31:39,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b6fd2d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:31:39, skipping insertion in model container [2022-11-23 14:31:39,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:06" (2/3) ... [2022-11-23 14:31:39,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b6fd2d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:31:39, skipping insertion in model container [2022-11-23 14:31:39,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:31:39" (3/3) ... [2022-11-23 14:31:39,935 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_aso.2.M4-2.c [2022-11-23 14:31:39,955 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:31:39,955 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:31:40,240 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:31:40,249 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@18ffa1c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:31:40,249 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:31:40,290 INFO L276 IsEmpty]: Start isEmpty. Operand has 13176 states, 8466 states have (on average 1.3016772974249942) internal successors, (11020), 8579 states have internal predecessors, (11020), 4684 states have call successors, (4684), 24 states have call predecessors, (4684), 24 states have return successors, (4684), 4682 states have call predecessors, (4684), 4684 states have call successors, (4684) [2022-11-23 14:31:41,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6506 [2022-11-23 14:31:41,063 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:31:41,067 INFO L195 NwaCegarLoop]: trace histogram [979, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2022-11-23 14:31:41,068 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:31:41,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:31:41,077 INFO L85 PathProgramCache]: Analyzing trace with hash -279809700, now seen corresponding path program 1 times [2022-11-23 14:31:41,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:31:41,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275896257] [2022-11-23 14:31:41,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:31:41,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms