./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.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_15d6c174-6a6f-43fc-a97e-cfa0a22a46a5/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d6c174-6a6f-43fc-a97e-cfa0a22a46a5/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_15d6c174-6a6f-43fc-a97e-cfa0a22a46a5/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d6c174-6a6f-43fc-a97e-cfa0a22a46a5/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d6c174-6a6f-43fc-a97e-cfa0a22a46a5/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_15d6c174-6a6f-43fc-a97e-cfa0a22a46a5/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 cdfe8cdf5ef6acb015ae980f200d66be6855e21e0a93c803bebabec43209e961 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 01:47:41,575 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 01:47:41,577 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 01:47:41,610 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 01:47:41,610 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 01:47:41,612 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 01:47:41,613 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 01:47:41,616 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 01:47:41,618 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 01:47:41,619 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 01:47:41,620 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 01:47:41,621 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 01:47:41,622 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 01:47:41,623 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 01:47:41,625 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 01:47:41,626 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 01:47:41,628 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 01:47:41,629 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 01:47:41,631 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 01:47:41,634 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 01:47:41,636 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 01:47:41,637 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 01:47:41,639 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 01:47:41,639 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 01:47:41,643 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 01:47:41,644 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 01:47:41,644 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 01:47:41,645 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 01:47:41,655 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 01:47:41,656 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 01:47:41,656 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 01:47:41,657 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 01:47:41,658 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 01:47:41,658 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 01:47:41,659 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 01:47:41,659 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 01:47:41,659 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 01:47:41,660 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 01:47:41,660 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 01:47:41,660 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 01:47:41,661 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 01:47:41,662 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d6c174-6a6f-43fc-a97e-cfa0a22a46a5/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-07 01:47:41,689 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 01:47:41,690 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 01:47:41,690 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 01:47:41,690 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 01:47:41,691 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 01:47:41,691 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 01:47:41,692 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 01:47:41,692 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 01:47:41,692 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 01:47:41,692 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 01:47:41,692 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-07 01:47:41,693 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 01:47:41,693 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-07 01:47:41,693 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 01:47:41,693 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 01:47:41,693 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 01:47:41,693 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 01:47:41,694 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-07 01:47:41,694 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 01:47:41,694 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 01:47:41,694 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 01:47:41,694 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 01:47:41,700 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 01:47:41,700 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 01:47:41,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:47:41,701 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 01:47:41,701 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 01:47:41,701 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 01:47:41,701 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 01:47:41,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-07 01:47:41,701 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 01:47:41,702 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 01:47:41,702 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 01:47:41,702 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 01:47:41,702 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_15d6c174-6a6f-43fc-a97e-cfa0a22a46a5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d6c174-6a6f-43fc-a97e-cfa0a22a46a5/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cdfe8cdf5ef6acb015ae980f200d66be6855e21e0a93c803bebabec43209e961 [2021-12-07 01:47:41,884 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 01:47:41,903 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 01:47:41,905 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 01:47:41,906 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 01:47:41,907 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 01:47:41,908 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d6c174-6a6f-43fc-a97e-cfa0a22a46a5/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c [2021-12-07 01:47:41,950 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d6c174-6a6f-43fc-a97e-cfa0a22a46a5/bin/uautomizer-DrprNOufMa/data/adc31da95/908f247071c64f8babffc3807f931564/FLAG831aa22a2 [2021-12-07 01:47:42,463 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 01:47:42,464 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d6c174-6a6f-43fc-a97e-cfa0a22a46a5/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c [2021-12-07 01:47:42,482 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d6c174-6a6f-43fc-a97e-cfa0a22a46a5/bin/uautomizer-DrprNOufMa/data/adc31da95/908f247071c64f8babffc3807f931564/FLAG831aa22a2 [2021-12-07 01:47:42,984 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d6c174-6a6f-43fc-a97e-cfa0a22a46a5/bin/uautomizer-DrprNOufMa/data/adc31da95/908f247071c64f8babffc3807f931564 [2021-12-07 01:47:42,986 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 01:47:42,987 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 01:47:42,988 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 01:47:42,988 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 01:47:42,991 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 01:47:42,991 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:47:42" (1/1) ... [2021-12-07 01:47:42,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1efe535d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:42, skipping insertion in model container [2021-12-07 01:47:42,992 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:47:42" (1/1) ... [2021-12-07 01:47:42,997 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 01:47:43,049 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 01:47:43,176 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_15d6c174-6a6f-43fc-a97e-cfa0a22a46a5/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c[1871,1884] [2021-12-07 01:47:43,514 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:47:43,528 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 01:47:43,537 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_15d6c174-6a6f-43fc-a97e-cfa0a22a46a5/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c[1871,1884] [2021-12-07 01:47:43,694 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:47:43,721 INFO L208 MainTranslator]: Completed translation [2021-12-07 01:47:43,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:43 WrapperNode [2021-12-07 01:47:43,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 01:47:43,723 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 01:47:43,723 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 01:47:43,723 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 01:47:43,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:43" (1/1) ... [2021-12-07 01:47:43,785 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:43" (1/1) ... [2021-12-07 01:47:43,961 INFO L137 Inliner]: procedures = 99, calls = 2724, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8254 [2021-12-07 01:47:43,962 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 01:47:43,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 01:47:43,963 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 01:47:43,963 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 01:47:43,973 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:43" (1/1) ... [2021-12-07 01:47:43,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:43" (1/1) ... [2021-12-07 01:47:44,004 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:43" (1/1) ... [2021-12-07 01:47:44,004 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:43" (1/1) ... [2021-12-07 01:47:44,104 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:43" (1/1) ... [2021-12-07 01:47:44,155 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:43" (1/1) ... [2021-12-07 01:47:44,174 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:43" (1/1) ... [2021-12-07 01:47:44,201 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 01:47:44,202 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 01:47:44,202 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 01:47:44,202 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 01:47:44,203 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:43" (1/1) ... [2021-12-07 01:47:44,209 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:47:44,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d6c174-6a6f-43fc-a97e-cfa0a22a46a5/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:47:44,230 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d6c174-6a6f-43fc-a97e-cfa0a22a46a5/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 01:47:44,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15d6c174-6a6f-43fc-a97e-cfa0a22a46a5/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 01:47:44,259 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2021-12-07 01:47:44,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2021-12-07 01:47:44,259 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2021-12-07 01:47:44,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2021-12-07 01:47:44,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-07 01:47:44,259 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2021-12-07 01:47:44,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2021-12-07 01:47:44,259 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-12-07 01:47:44,259 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-12-07 01:47:44,259 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2021-12-07 01:47:44,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2021-12-07 01:47:44,259 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2021-12-07 01:47:44,260 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2021-12-07 01:47:44,260 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2021-12-07 01:47:44,260 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2021-12-07 01:47:44,260 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2021-12-07 01:47:44,260 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2021-12-07 01:47:44,260 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2021-12-07 01:47:44,260 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2021-12-07 01:47:44,260 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2021-12-07 01:47:44,260 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2021-12-07 01:47:44,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-07 01:47:44,260 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-12-07 01:47:44,260 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-12-07 01:47:44,260 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2021-12-07 01:47:44,261 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2021-12-07 01:47:44,261 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2021-12-07 01:47:44,261 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2021-12-07 01:47:44,261 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2021-12-07 01:47:44,261 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2021-12-07 01:47:44,261 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2021-12-07 01:47:44,261 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2021-12-07 01:47:44,261 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2021-12-07 01:47:44,261 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2021-12-07 01:47:44,261 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-12-07 01:47:44,261 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-12-07 01:47:44,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 01:47:44,261 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-12-07 01:47:44,262 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-12-07 01:47:44,262 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2021-12-07 01:47:44,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2021-12-07 01:47:44,262 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2021-12-07 01:47:44,262 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2021-12-07 01:47:44,262 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2021-12-07 01:47:44,262 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2021-12-07 01:47:44,262 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-12-07 01:47:44,262 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-12-07 01:47:44,262 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2021-12-07 01:47:44,262 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2021-12-07 01:47:44,262 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-12-07 01:47:44,263 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-12-07 01:47:44,263 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2021-12-07 01:47:44,263 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2021-12-07 01:47:44,263 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2021-12-07 01:47:44,263 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2021-12-07 01:47:44,263 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2021-12-07 01:47:44,263 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2021-12-07 01:47:44,263 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2021-12-07 01:47:44,263 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2021-12-07 01:47:44,264 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2021-12-07 01:47:44,264 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2021-12-07 01:47:44,264 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2021-12-07 01:47:44,264 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2021-12-07 01:47:44,264 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2021-12-07 01:47:44,264 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2021-12-07 01:47:44,264 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2021-12-07 01:47:44,264 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2021-12-07 01:47:44,264 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2021-12-07 01:47:44,264 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2021-12-07 01:47:44,264 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2021-12-07 01:47:44,264 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2021-12-07 01:47:44,265 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2021-12-07 01:47:44,265 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2021-12-07 01:47:44,265 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2021-12-07 01:47:44,265 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2021-12-07 01:47:44,265 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2021-12-07 01:47:44,265 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2021-12-07 01:47:44,265 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2021-12-07 01:47:44,265 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2021-12-07 01:47:44,265 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2021-12-07 01:47:44,265 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2021-12-07 01:47:44,265 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2021-12-07 01:47:44,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2021-12-07 01:47:44,266 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2021-12-07 01:47:44,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2021-12-07 01:47:44,266 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2021-12-07 01:47:44,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2021-12-07 01:47:44,266 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2021-12-07 01:47:44,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2021-12-07 01:47:44,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 01:47:44,266 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2021-12-07 01:47:44,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2021-12-07 01:47:44,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 01:47:44,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 01:47:44,648 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 01:47:44,650 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 01:47:56,440 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 01:47:56,467 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 01:47:56,467 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-07 01:47:56,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:47:56 BoogieIcfgContainer [2021-12-07 01:47:56,471 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 01:47:56,473 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 01:47:56,473 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 01:47:56,475 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 01:47:56,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:47:42" (1/3) ... [2021-12-07 01:47:56,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@128c416c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:47:56, skipping insertion in model container [2021-12-07 01:47:56,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:43" (2/3) ... [2021-12-07 01:47:56,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@128c416c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:47:56, skipping insertion in model container [2021-12-07 01:47:56,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:47:56" (3/3) ... [2021-12-07 01:47:56,477 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_ctm.2-1.c [2021-12-07 01:47:56,481 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 01:47:56,481 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-07 01:47:56,536 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 01:47:56,541 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 [2021-12-07 01:47:56,541 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-07 01:47:56,594 INFO L276 IsEmpty]: Start isEmpty. Operand has 2453 states, 2105 states have (on average 1.4807600950118764) internal successors, (3117), 2129 states have internal predecessors, (3117), 302 states have call successors, (302), 44 states have call predecessors, (302), 44 states have return successors, (302), 292 states have call predecessors, (302), 302 states have call successors, (302) [2021-12-07 01:47:56,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-12-07 01:47:56,608 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:47:56,609 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:47:56,609 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:47:56,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:47:56,613 INFO L85 PathProgramCache]: Analyzing trace with hash -134003326, now seen corresponding path program 1 times [2021-12-07 01:47:56,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:47:56,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102955404] [2021-12-07 01:47:56,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:47:56,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms