./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_bd942b42-d562-4280-94eb-ce956e27a7d6/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd942b42-d562-4280-94eb-ce956e27a7d6/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd942b42-d562-4280-94eb-ce956e27a7d6/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd942b42-d562-4280-94eb-ce956e27a7d6/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd942b42-d562-4280-94eb-ce956e27a7d6/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd942b42-d562-4280-94eb-ce956e27a7d6/bin/utaipan-gh47qXpMRh --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 f1e7a931f8678a52ab26f5a1b74bb59e33ef4ed9c03430a4d28342e1a824b13d --- 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-2329fc7 [2022-12-14 11:09:41,481 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:09:41,483 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:09:41,505 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:09:41,506 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:09:41,506 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:09:41,508 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:09:41,509 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:09:41,511 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:09:41,511 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:09:41,512 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:09:41,513 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:09:41,514 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:09:41,515 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:09:41,516 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:09:41,517 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:09:41,518 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:09:41,518 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:09:41,520 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:09:41,522 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:09:41,523 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:09:41,524 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:09:41,525 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:09:41,526 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:09:41,529 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:09:41,530 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:09:41,530 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:09:41,531 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:09:41,531 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:09:41,532 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:09:41,532 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:09:41,533 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:09:41,534 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:09:41,534 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:09:41,535 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:09:41,535 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:09:41,536 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:09:41,536 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:09:41,536 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:09:41,537 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:09:41,538 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:09:41,538 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd942b42-d562-4280-94eb-ce956e27a7d6/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 11:09:41,559 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:09:41,559 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:09:41,559 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:09:41,559 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:09:41,560 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:09:41,560 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:09:41,560 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:09:41,560 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:09:41,561 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:09:41,561 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 11:09:41,561 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:09:41,561 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:09:41,561 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 11:09:41,561 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 11:09:41,561 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:09:41,562 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 11:09:41,562 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 11:09:41,562 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 11:09:41,563 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:09:41,563 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 11:09:41,563 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 11:09:41,563 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 11:09:41,563 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:09:41,563 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:09:41,563 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:09:41,564 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:09:41,564 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 11:09:41,564 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:09:41,564 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:09:41,564 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:09:41,564 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:09:41,565 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:09:41,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:09:41,565 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:09:41,565 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 11:09:41,565 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:09:41,565 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:09:41,566 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 11:09:41,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 11:09:41,566 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:09:41,566 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:09:41,566 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_bd942b42-d562-4280-94eb-ce956e27a7d6/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd942b42-d562-4280-94eb-ce956e27a7d6/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1e7a931f8678a52ab26f5a1b74bb59e33ef4ed9c03430a4d28342e1a824b13d [2022-12-14 11:09:41,769 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:09:41,787 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:09:41,789 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:09:41,790 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:09:41,791 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:09:41,792 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd942b42-d562-4280-94eb-ce956e27a7d6/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c [2022-12-14 11:09:44,420 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:09:44,755 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:09:44,755 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd942b42-d562-4280-94eb-ce956e27a7d6/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c [2022-12-14 11:09:44,781 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd942b42-d562-4280-94eb-ce956e27a7d6/bin/utaipan-gh47qXpMRh/data/40dc6295e/f876bcc41fde452a9cc2d8102e196047/FLAG4b9ba05c7 [2022-12-14 11:09:44,793 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd942b42-d562-4280-94eb-ce956e27a7d6/bin/utaipan-gh47qXpMRh/data/40dc6295e/f876bcc41fde452a9cc2d8102e196047 [2022-12-14 11:09:44,796 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:09:44,798 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:09:44,799 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:09:44,799 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:09:44,802 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:09:44,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:09:44" (1/1) ... [2022-12-14 11:09:44,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a904d3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:09:44, skipping insertion in model container [2022-12-14 11:09:44,803 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:09:44" (1/1) ... [2022-12-14 11:09:44,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:09:44,859 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:09:45,030 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_bd942b42-d562-4280-94eb-ce956e27a7d6/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c[1870,1883] [2022-12-14 11:09:45,390 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:09:45,405 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:09:45,415 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_bd942b42-d562-4280-94eb-ce956e27a7d6/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c[1870,1883] [2022-12-14 11:09:45,606 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:09:45,629 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:09:45,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:09:45 WrapperNode [2022-12-14 11:09:45,629 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:09:45,630 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:09:45,630 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:09:45,630 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:09:45,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:09:45" (1/1) ... [2022-12-14 11:09:45,669 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:09:45" (1/1) ... [2022-12-14 11:09:45,766 INFO L138 Inliner]: procedures = 99, calls = 2725, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 8221 [2022-12-14 11:09:45,766 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:09:45,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:09:45,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:09:45,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:09:45,774 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:09:45" (1/1) ... [2022-12-14 11:09:45,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:09:45" (1/1) ... [2022-12-14 11:09:45,819 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:09:45" (1/1) ... [2022-12-14 11:09:45,820 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:09:45" (1/1) ... [2022-12-14 11:09:45,904 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:09:45" (1/1) ... [2022-12-14 11:09:45,920 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:09:45" (1/1) ... [2022-12-14 11:09:45,933 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:09:45" (1/1) ... [2022-12-14 11:09:45,949 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:09:45" (1/1) ... [2022-12-14 11:09:45,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:09:45,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:09:45,982 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:09:45,982 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:09:45,983 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:09:45" (1/1) ... [2022-12-14 11:09:45,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:09:45,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd942b42-d562-4280-94eb-ce956e27a7d6/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:09:46,009 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd942b42-d562-4280-94eb-ce956e27a7d6/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:09:46,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd942b42-d562-4280-94eb-ce956e27a7d6/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:09:46,044 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-12-14 11:09:46,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-12-14 11:09:46,044 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-12-14 11:09:46,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-12-14 11:09:46,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 11:09:46,045 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-12-14 11:09:46,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-12-14 11:09:46,045 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-12-14 11:09:46,045 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-12-14 11:09:46,045 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-12-14 11:09:46,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-12-14 11:09:46,045 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-12-14 11:09:46,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-12-14 11:09:46,046 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-12-14 11:09:46,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-12-14 11:09:46,046 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-12-14 11:09:46,046 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-12-14 11:09:46,046 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-12-14 11:09:46,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-12-14 11:09:46,046 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-12-14 11:09:46,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-12-14 11:09:46,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 11:09:46,047 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-12-14 11:09:46,047 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-12-14 11:09:46,047 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-12-14 11:09:46,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-12-14 11:09:46,047 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-12-14 11:09:46,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-12-14 11:09:46,047 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-12-14 11:09:46,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-12-14 11:09:46,047 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-12-14 11:09:46,048 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-12-14 11:09:46,048 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-12-14 11:09:46,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-12-14 11:09:46,048 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-12-14 11:09:46,048 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-12-14 11:09:46,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:09:46,048 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-12-14 11:09:46,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-12-14 11:09:46,048 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-12-14 11:09:46,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-12-14 11:09:46,049 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-12-14 11:09:46,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-12-14 11:09:46,049 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-12-14 11:09:46,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-12-14 11:09:46,049 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-12-14 11:09:46,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-12-14 11:09:46,049 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-12-14 11:09:46,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-12-14 11:09:46,049 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-12-14 11:09:46,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-12-14 11:09:46,050 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-12-14 11:09:46,050 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-12-14 11:09:46,050 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-12-14 11:09:46,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-12-14 11:09:46,050 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-12-14 11:09:46,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-12-14 11:09:46,050 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-12-14 11:09:46,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-12-14 11:09:46,051 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-12-14 11:09:46,051 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-12-14 11:09:46,051 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-12-14 11:09:46,051 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-12-14 11:09:46,051 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-12-14 11:09:46,051 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-12-14 11:09:46,051 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-12-14 11:09:46,051 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-12-14 11:09:46,051 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-12-14 11:09:46,051 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-12-14 11:09:46,051 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-12-14 11:09:46,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-12-14 11:09:46,052 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-12-14 11:09:46,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-12-14 11:09:46,052 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-12-14 11:09:46,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-12-14 11:09:46,052 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-12-14 11:09:46,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-12-14 11:09:46,052 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-12-14 11:09:46,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-12-14 11:09:46,052 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-12-14 11:09:46,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-12-14 11:09:46,053 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2022-12-14 11:09:46,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2022-12-14 11:09:46,053 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-12-14 11:09:46,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-12-14 11:09:46,053 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-12-14 11:09:46,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-12-14 11:09:46,053 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-12-14 11:09:46,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-12-14 11:09:46,054 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2022-12-14 11:09:46,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2022-12-14 11:09:46,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 11:09:46,054 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-12-14 11:09:46,054 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-12-14 11:09:46,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:09:46,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:09:46,438 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:09:46,440 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:09:59,127 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:10:05,152 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:10:05,152 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-14 11:10:05,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:10:05 BoogieIcfgContainer [2022-12-14 11:10:05,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:10:05,157 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:10:05,157 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:10:05,160 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:10:05,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:09:44" (1/3) ... [2022-12-14 11:10:05,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@133bc01b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:10:05, skipping insertion in model container [2022-12-14 11:10:05,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:09:45" (2/3) ... [2022-12-14 11:10:05,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@133bc01b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:10:05, skipping insertion in model container [2022-12-14 11:10:05,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:10:05" (3/3) ... [2022-12-14 11:10:05,162 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.2-2.c [2022-12-14 11:10:05,176 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:10:05,177 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 11:10:05,226 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:10:05,231 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;@6ea21bab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:10:05,231 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 11:10:05,238 INFO L276 IsEmpty]: Start isEmpty. Operand has 959 states, 608 states have (on average 1.3848684210526316) internal successors, (842), 632 states have internal predecessors, (842), 304 states have call successors, (304), 45 states have call predecessors, (304), 45 states have return successors, (304), 294 states have call predecessors, (304), 304 states have call successors, (304) [2022-12-14 11:10:05,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 11:10:05,244 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:10:05,245 INFO L195 NwaCegarLoop]: 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] [2022-12-14 11:10:05,245 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:10:05,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:10:05,249 INFO L85 PathProgramCache]: Analyzing trace with hash -683211908, now seen corresponding path program 1 times [2022-12-14 11:10:05,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:10:05,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754019393] [2022-12-14 11:10:05,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:10:05,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms