./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33965b77-22a4-4579-9235-aecc29831ac7/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33965b77-22a4-4579-9235-aecc29831ac7/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33965b77-22a4-4579-9235-aecc29831ac7/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33965b77-22a4-4579-9235-aecc29831ac7/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33965b77-22a4-4579-9235-aecc29831ac7/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33965b77-22a4-4579-9235-aecc29831ac7/bin/utaipan-eEHZpOm5b7 --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 dc59d2eb5280d2e1e7e9c76bdd35770d97977523b6f11f8f4ccd72ffe423d428 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 17:46:23,265 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 17:46:23,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 17:46:23,312 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 17:46:23,313 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 17:46:23,317 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 17:46:23,319 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 17:46:23,323 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 17:46:23,326 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 17:46:23,331 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 17:46:23,332 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 17:46:23,335 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 17:46:23,335 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 17:46:23,337 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 17:46:23,338 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 17:46:23,339 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 17:46:23,340 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 17:46:23,341 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 17:46:23,343 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 17:46:23,345 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 17:46:23,347 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 17:46:23,348 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 17:46:23,350 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 17:46:23,351 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 17:46:23,354 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 17:46:23,355 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 17:46:23,355 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 17:46:23,356 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 17:46:23,357 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 17:46:23,358 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 17:46:23,358 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 17:46:23,359 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 17:46:23,360 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 17:46:23,361 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 17:46:23,362 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 17:46:23,362 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 17:46:23,363 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 17:46:23,363 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 17:46:23,363 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 17:46:23,364 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 17:46:23,365 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 17:46:23,366 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33965b77-22a4-4579-9235-aecc29831ac7/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 17:46:23,412 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 17:46:23,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 17:46:23,413 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 17:46:23,413 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 17:46:23,414 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 17:46:23,414 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 17:46:23,414 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 17:46:23,414 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 17:46:23,415 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 17:46:23,415 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 17:46:23,415 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 17:46:23,415 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 17:46:23,415 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 17:46:23,416 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 17:46:23,416 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 17:46:23,416 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 17:46:23,416 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 17:46:23,416 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 17:46:23,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 17:46:23,417 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 17:46:23,417 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 17:46:23,418 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 17:46:23,418 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 17:46:23,418 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 17:46:23,421 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 17:46:23,421 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 17:46:23,422 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 17:46:23,422 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 17:46:23,423 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 17:46:23,423 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 17:46:23,424 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 17:46:23,424 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 17:46:23,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 17:46:23,424 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 17:46:23,424 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 17:46:23,425 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 17:46:23,426 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 17:46:23,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 17:46:23,426 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 17:46:23,426 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 17:46:23,426 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 17:46:23,427 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_33965b77-22a4-4579-9235-aecc29831ac7/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33965b77-22a4-4579-9235-aecc29831ac7/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc59d2eb5280d2e1e7e9c76bdd35770d97977523b6f11f8f4ccd72ffe423d428 [2021-11-25 17:46:23,744 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 17:46:23,772 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 17:46:23,774 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 17:46:23,776 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 17:46:23,780 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 17:46:23,781 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33965b77-22a4-4579-9235-aecc29831ac7/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-1.c [2021-11-25 17:46:23,859 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33965b77-22a4-4579-9235-aecc29831ac7/bin/utaipan-eEHZpOm5b7/data/49693da40/89ac8c2431f54edeafff5e123ea3eb88/FLAG2b2a5abaf [2021-11-25 17:46:24,695 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 17:46:24,695 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33965b77-22a4-4579-9235-aecc29831ac7/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-1.c [2021-11-25 17:46:24,729 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33965b77-22a4-4579-9235-aecc29831ac7/bin/utaipan-eEHZpOm5b7/data/49693da40/89ac8c2431f54edeafff5e123ea3eb88/FLAG2b2a5abaf [2021-11-25 17:46:24,806 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33965b77-22a4-4579-9235-aecc29831ac7/bin/utaipan-eEHZpOm5b7/data/49693da40/89ac8c2431f54edeafff5e123ea3eb88 [2021-11-25 17:46:24,809 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 17:46:24,810 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 17:46:24,812 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 17:46:24,812 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 17:46:24,818 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 17:46:24,819 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:46:24" (1/1) ... [2021-11-25 17:46:24,820 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65792514 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:46:24, skipping insertion in model container [2021-11-25 17:46:24,820 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:46:24" (1/1) ... [2021-11-25 17:46:24,830 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 17:46:24,943 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 17:46:25,181 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_33965b77-22a4-4579-9235-aecc29831ac7/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-1.c[1807,1820] [2021-11-25 17:46:25,823 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 17:46:25,840 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 17:46:25,857 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_33965b77-22a4-4579-9235-aecc29831ac7/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-1.c[1807,1820] [2021-11-25 17:46:26,175 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 17:46:26,199 INFO L208 MainTranslator]: Completed translation [2021-11-25 17:46:26,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:46:26 WrapperNode [2021-11-25 17:46:26,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 17:46:26,201 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 17:46:26,201 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 17:46:26,201 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 17:46:26,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:46:26" (1/1) ... [2021-11-25 17:46:26,294 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:46:26" (1/1) ... [2021-11-25 17:46:26,650 INFO L137 Inliner]: procedures = 70, calls = 5188, calls flagged for inlining = 26, calls inlined = 26, statements flattened = 9727 [2021-11-25 17:46:26,651 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 17:46:26,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 17:46:26,652 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 17:46:26,652 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 17:46:26,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:46:26" (1/1) ... [2021-11-25 17:46:26,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:46:26" (1/1) ... [2021-11-25 17:46:26,825 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:46:26" (1/1) ... [2021-11-25 17:46:26,826 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:46:26" (1/1) ... [2021-11-25 17:46:27,201 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:46:26" (1/1) ... [2021-11-25 17:46:27,233 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:46:26" (1/1) ... [2021-11-25 17:46:27,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:46:26" (1/1) ... [2021-11-25 17:46:27,367 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 17:46:27,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 17:46:27,369 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 17:46:27,369 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 17:46:27,383 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:46:26" (1/1) ... [2021-11-25 17:46:27,392 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 17:46:27,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33965b77-22a4-4579-9235-aecc29831ac7/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:46:27,416 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33965b77-22a4-4579-9235-aecc29831ac7/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 17:46:27,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33965b77-22a4-4579-9235-aecc29831ac7/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 17:46:27,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 17:46:27,469 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_trans [2021-11-25 17:46:27,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_trans [2021-11-25 17:46:27,470 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2021-11-25 17:46:27,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2021-11-25 17:46:27,470 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-11-25 17:46:27,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-11-25 17:46:27,470 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2021-11-25 17:46:27,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2021-11-25 17:46:27,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 17:46:27,471 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-11-25 17:46:27,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-11-25 17:46:27,471 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-11-25 17:46:27,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-11-25 17:46:27,472 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2021-11-25 17:46:27,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2021-11-25 17:46:27,472 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2021-11-25 17:46:27,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2021-11-25 17:46:27,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 17:46:27,472 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-11-25 17:46:27,473 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-11-25 17:46:27,473 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2021-11-25 17:46:27,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2021-11-25 17:46:27,473 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2021-11-25 17:46:27,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2021-11-25 17:46:27,474 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2021-11-25 17:46:27,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2021-11-25 17:46:27,474 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2021-11-25 17:46:27,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2021-11-25 17:46:27,474 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2021-11-25 17:46:27,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2021-11-25 17:46:27,475 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2021-11-25 17:46:27,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2021-11-25 17:46:27,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 17:46:27,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 17:46:27,476 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-11-25 17:46:27,476 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-11-25 17:46:27,476 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2021-11-25 17:46:27,476 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2021-11-25 17:46:27,476 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2021-11-25 17:46:27,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2021-11-25 17:46:27,477 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2021-11-25 17:46:27,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2021-11-25 17:46:27,477 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-25 17:46:27,478 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-25 17:46:27,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 17:46:27,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 17:46:27,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 17:46:27,480 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2021-11-25 17:46:27,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2021-11-25 17:46:27,480 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-11-25 17:46:27,481 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-11-25 17:46:27,481 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2021-11-25 17:46:27,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2021-11-25 17:46:27,481 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2021-11-25 17:46:27,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2021-11-25 17:46:28,294 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 17:46:28,296 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 17:46:45,445 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 17:46:46,156 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 17:46:46,157 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-25 17:46:46,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:46:46 BoogieIcfgContainer [2021-11-25 17:46:46,164 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 17:46:46,166 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 17:46:46,167 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 17:46:46,170 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 17:46:46,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:46:24" (1/3) ... [2021-11-25 17:46:46,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@548b6da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:46:46, skipping insertion in model container [2021-11-25 17:46:46,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:46:26" (2/3) ... [2021-11-25 17:46:46,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@548b6da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:46:46, skipping insertion in model container [2021-11-25 17:46:46,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:46:46" (3/3) ... [2021-11-25 17:46:46,176 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_aso.2.M1-1.c [2021-11-25 17:46:46,183 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 17:46:46,184 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 17:46:46,262 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 17:46:46,271 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 [2021-11-25 17:46:46,272 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 17:46:46,384 INFO L276 IsEmpty]: Start isEmpty. Operand has 3522 states, 1990 states have (on average 1.1658291457286432) internal successors, (2320), 1995 states have internal predecessors, (2320), 1506 states have call successors, (1506), 24 states have call predecessors, (1506), 24 states have return successors, (1506), 1504 states have call predecessors, (1506), 1506 states have call successors, (1506) [2021-11-25 17:46:46,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 952 [2021-11-25 17:46:46,464 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:46:46,465 INFO L514 BasicCegarLoop]: trace histogram [210, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:46:46,466 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 17:46:46,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:46:46,476 INFO L85 PathProgramCache]: Analyzing trace with hash -610611405, now seen corresponding path program 1 times [2021-11-25 17:46:46,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:46:46,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953654434] [2021-11-25 17:46:46,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:46:46,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms