./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-2.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_59895711-a2e3-43c3-ae3e-1d33185ffb11/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59895711-a2e3-43c3-ae3e-1d33185ffb11/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59895711-a2e3-43c3-ae3e-1d33185ffb11/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59895711-a2e3-43c3-ae3e-1d33185ffb11/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59895711-a2e3-43c3-ae3e-1d33185ffb11/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59895711-a2e3-43c3-ae3e-1d33185ffb11/bin/uautomizer-DrprNOufMa --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 20976b2d8a648a632a55cb7b6a072d8c835d658a3592a366af91723667ead694 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 21:09:10,364 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 21:09:10,366 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 21:09:10,388 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 21:09:10,388 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 21:09:10,389 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 21:09:10,391 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 21:09:10,392 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 21:09:10,394 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 21:09:10,395 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 21:09:10,395 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 21:09:10,396 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 21:09:10,397 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 21:09:10,398 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 21:09:10,399 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 21:09:10,400 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 21:09:10,401 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 21:09:10,402 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 21:09:10,403 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 21:09:10,405 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 21:09:10,406 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 21:09:10,408 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 21:09:10,409 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 21:09:10,409 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 21:09:10,412 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 21:09:10,412 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 21:09:10,413 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 21:09:10,414 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 21:09:10,414 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 21:09:10,415 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 21:09:10,415 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 21:09:10,416 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 21:09:10,416 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 21:09:10,417 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 21:09:10,418 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 21:09:10,418 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 21:09:10,419 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 21:09:10,419 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 21:09:10,419 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 21:09:10,420 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 21:09:10,420 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 21:09:10,421 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59895711-a2e3-43c3-ae3e-1d33185ffb11/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 21:09:10,444 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 21:09:10,444 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 21:09:10,445 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 21:09:10,445 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 21:09:10,445 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 21:09:10,446 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 21:09:10,446 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 21:09:10,446 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 21:09:10,446 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 21:09:10,446 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 21:09:10,447 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 21:09:10,447 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 21:09:10,447 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 21:09:10,447 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 21:09:10,447 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 21:09:10,448 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 21:09:10,448 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 21:09:10,448 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 21:09:10,448 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 21:09:10,448 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 21:09:10,448 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 21:09:10,448 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 21:09:10,448 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 21:09:10,449 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 21:09:10,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 21:09:10,449 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 21:09:10,449 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 21:09:10,449 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 21:09:10,449 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 21:09:10,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 21:09:10,449 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 21:09:10,450 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 21:09:10,450 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 21:09:10,450 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 21:09:10,450 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_59895711-a2e3-43c3-ae3e-1d33185ffb11/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59895711-a2e3-43c3-ae3e-1d33185ffb11/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20976b2d8a648a632a55cb7b6a072d8c835d658a3592a366af91723667ead694 [2021-12-06 21:09:10,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 21:09:10,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 21:09:10,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 21:09:10,659 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 21:09:10,660 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 21:09:10,661 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59895711-a2e3-43c3-ae3e-1d33185ffb11/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-2.c [2021-12-06 21:09:10,716 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59895711-a2e3-43c3-ae3e-1d33185ffb11/bin/uautomizer-DrprNOufMa/data/e449fe3c9/b0181acd39a44a7b96787ab103a11fd9/FLAG3f686b367 [2021-12-06 21:09:11,242 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 21:09:11,242 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59895711-a2e3-43c3-ae3e-1d33185ffb11/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-2.c [2021-12-06 21:09:11,258 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59895711-a2e3-43c3-ae3e-1d33185ffb11/bin/uautomizer-DrprNOufMa/data/e449fe3c9/b0181acd39a44a7b96787ab103a11fd9/FLAG3f686b367 [2021-12-06 21:09:11,705 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59895711-a2e3-43c3-ae3e-1d33185ffb11/bin/uautomizer-DrprNOufMa/data/e449fe3c9/b0181acd39a44a7b96787ab103a11fd9 [2021-12-06 21:09:11,711 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 21:09:11,713 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 21:09:11,716 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 21:09:11,717 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 21:09:11,723 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 21:09:11,724 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 09:09:11" (1/1) ... [2021-12-06 21:09:11,726 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d90c661 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:09:11, skipping insertion in model container [2021-12-06 21:09:11,727 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 09:09:11" (1/1) ... [2021-12-06 21:09:11,739 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 21:09:11,801 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 21:09:11,944 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_59895711-a2e3-43c3-ae3e-1d33185ffb11/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-2.c[1807,1820] [2021-12-06 21:09:12,349 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 21:09:12,361 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 21:09:12,371 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_59895711-a2e3-43c3-ae3e-1d33185ffb11/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-2.c[1807,1820] [2021-12-06 21:09:12,558 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 21:09:12,576 INFO L208 MainTranslator]: Completed translation [2021-12-06 21:09:12,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:09:12 WrapperNode [2021-12-06 21:09:12,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 21:09:12,578 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 21:09:12,578 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 21:09:12,578 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 21:09:12,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:09:12" (1/1) ... [2021-12-06 21:09:12,656 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:09:12" (1/1) ... [2021-12-06 21:09:12,889 INFO L137 Inliner]: procedures = 70, calls = 5237, calls flagged for inlining = 25, calls inlined = 25, statements flattened = 9803 [2021-12-06 21:09:12,889 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 21:09:12,890 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 21:09:12,890 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 21:09:12,890 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 21:09:12,896 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:09:12" (1/1) ... [2021-12-06 21:09:12,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:09:12" (1/1) ... [2021-12-06 21:09:12,933 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:09:12" (1/1) ... [2021-12-06 21:09:12,933 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:09:12" (1/1) ... [2021-12-06 21:09:13,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:09:12" (1/1) ... [2021-12-06 21:09:13,137 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:09:12" (1/1) ... [2021-12-06 21:09:13,164 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:09:12" (1/1) ... [2021-12-06 21:09:13,223 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 21:09:13,224 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 21:09:13,224 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 21:09:13,224 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 21:09:13,225 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:09:12" (1/1) ... [2021-12-06 21:09:13,231 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 21:09:13,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59895711-a2e3-43c3-ae3e-1d33185ffb11/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:09:13,252 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59895711-a2e3-43c3-ae3e-1d33185ffb11/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 21:09:13,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59895711-a2e3-43c3-ae3e-1d33185ffb11/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 21:09:13,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 21:09:13,287 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_trans [2021-12-06 21:09:13,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_trans [2021-12-06 21:09:13,288 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2021-12-06 21:09:13,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2021-12-06 21:09:13,288 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-12-06 21:09:13,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-12-06 21:09:13,288 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2021-12-06 21:09:13,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2021-12-06 21:09:13,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 21:09:13,288 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-12-06 21:09:13,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-12-06 21:09:13,288 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-12-06 21:09:13,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-12-06 21:09:13,289 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2021-12-06 21:09:13,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2021-12-06 21:09:13,289 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2021-12-06 21:09:13,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2021-12-06 21:09:13,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 21:09:13,289 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-12-06 21:09:13,289 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-12-06 21:09:13,289 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2021-12-06 21:09:13,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2021-12-06 21:09:13,289 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2021-12-06 21:09:13,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2021-12-06 21:09:13,290 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2021-12-06 21:09:13,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2021-12-06 21:09:13,290 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2021-12-06 21:09:13,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2021-12-06 21:09:13,290 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2021-12-06 21:09:13,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2021-12-06 21:09:13,290 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2021-12-06 21:09:13,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2021-12-06 21:09:13,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 21:09:13,291 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2021-12-06 21:09:13,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2021-12-06 21:09:13,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 21:09:13,291 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-12-06 21:09:13,291 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-12-06 21:09:13,291 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2021-12-06 21:09:13,291 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2021-12-06 21:09:13,291 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2021-12-06 21:09:13,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2021-12-06 21:09:13,291 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2021-12-06 21:09:13,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2021-12-06 21:09:13,292 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-06 21:09:13,292 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-06 21:09:13,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 21:09:13,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 21:09:13,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 21:09:13,292 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2021-12-06 21:09:13,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2021-12-06 21:09:13,292 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-12-06 21:09:13,292 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-12-06 21:09:13,293 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2021-12-06 21:09:13,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2021-12-06 21:09:13,293 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2021-12-06 21:09:13,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2021-12-06 21:09:13,750 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 21:09:13,752 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 21:09:23,657 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 21:09:23,686 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 21:09:23,687 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 21:09:23,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 09:09:23 BoogieIcfgContainer [2021-12-06 21:09:23,692 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 21:09:23,693 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 21:09:23,693 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 21:09:23,695 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 21:09:23,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 09:09:11" (1/3) ... [2021-12-06 21:09:23,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@326b516d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 09:09:23, skipping insertion in model container [2021-12-06 21:09:23,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:09:12" (2/3) ... [2021-12-06 21:09:23,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@326b516d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 09:09:23, skipping insertion in model container [2021-12-06 21:09:23,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 09:09:23" (3/3) ... [2021-12-06 21:09:23,698 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_aso.2.M4-2.c [2021-12-06 21:09:23,702 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 21:09:23,702 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 21:09:23,756 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 21:09:23,762 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=PETRI_NET, 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 [2021-12-06 21:09:23,762 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 21:09:23,841 INFO L276 IsEmpty]: Start isEmpty. Operand has 3579 states, 2044 states have (on average 1.1653620352250489) internal successors, (2382), 2049 states have internal predecessors, (2382), 1508 states have call successors, (1508), 25 states have call predecessors, (1508), 25 states have return successors, (1508), 1506 states have call predecessors, (1508), 1508 states have call successors, (1508) [2021-12-06 21:09:23,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1379 [2021-12-06 21:09:23,935 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 21:09:23,936 INFO L514 BasicCegarLoop]: trace histogram [210, 210, 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, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:09:23,936 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 21:09:23,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:09:23,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1024813490, now seen corresponding path program 1 times [2021-12-06 21:09:23,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:09:23,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007733005] [2021-12-06 21:09:23,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:09:23,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms