./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.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_ef37634b-8133-48ea-b863-7a41a7c6b912/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef37634b-8133-48ea-b863-7a41a7c6b912/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_ef37634b-8133-48ea-b863-7a41a7c6b912/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef37634b-8133-48ea-b863-7a41a7c6b912/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef37634b-8133-48ea-b863-7a41a7c6b912/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_ef37634b-8133-48ea-b863-7a41a7c6b912/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 436e6e57c04bd43264564f478c3aa92ec3799e6c36d71ae9bac6692f2873338f --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 18:39:45,357 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 18:39:45,359 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 18:39:45,387 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 18:39:45,388 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 18:39:45,389 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 18:39:45,391 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 18:39:45,392 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 18:39:45,394 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 18:39:45,394 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 18:39:45,395 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 18:39:45,396 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 18:39:45,396 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 18:39:45,397 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 18:39:45,398 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 18:39:45,400 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 18:39:45,400 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 18:39:45,401 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 18:39:45,402 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 18:39:45,404 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 18:39:45,406 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 18:39:45,407 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 18:39:45,408 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 18:39:45,409 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 18:39:45,411 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 18:39:45,412 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 18:39:45,412 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 18:39:45,413 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 18:39:45,413 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 18:39:45,414 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 18:39:45,414 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 18:39:45,415 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 18:39:45,415 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 18:39:45,416 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 18:39:45,417 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 18:39:45,417 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 18:39:45,417 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 18:39:45,417 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 18:39:45,418 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 18:39:45,418 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 18:39:45,419 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 18:39:45,420 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef37634b-8133-48ea-b863-7a41a7c6b912/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 18:39:45,436 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 18:39:45,436 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 18:39:45,436 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 18:39:45,437 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 18:39:45,437 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 18:39:45,437 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 18:39:45,438 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 18:39:45,438 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 18:39:45,438 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 18:39:45,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 18:39:45,438 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 18:39:45,438 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 18:39:45,438 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 18:39:45,438 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 18:39:45,438 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 18:39:45,439 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 18:39:45,439 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 18:39:45,439 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 18:39:45,439 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 18:39:45,439 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 18:39:45,439 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 18:39:45,439 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 18:39:45,439 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 18:39:45,439 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 18:39:45,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:39:45,440 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 18:39:45,440 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 18:39:45,440 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 18:39:45,440 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 18:39:45,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 18:39:45,440 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 18:39:45,440 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 18:39:45,440 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 18:39:45,441 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 18:39:45,441 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_ef37634b-8133-48ea-b863-7a41a7c6b912/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef37634b-8133-48ea-b863-7a41a7c6b912/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 436e6e57c04bd43264564f478c3aa92ec3799e6c36d71ae9bac6692f2873338f [2021-12-06 18:39:45,648 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 18:39:45,664 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 18:39:45,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 18:39:45,666 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 18:39:45,667 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 18:39:45,668 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef37634b-8133-48ea-b863-7a41a7c6b912/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c [2021-12-06 18:39:45,717 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef37634b-8133-48ea-b863-7a41a7c6b912/bin/uautomizer-DrprNOufMa/data/9d1d9de47/033f9381736a490daf32b3fbbe9c8cca/FLAGb91d10e16 [2021-12-06 18:39:46,206 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 18:39:46,206 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef37634b-8133-48ea-b863-7a41a7c6b912/sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c [2021-12-06 18:39:46,222 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef37634b-8133-48ea-b863-7a41a7c6b912/bin/uautomizer-DrprNOufMa/data/9d1d9de47/033f9381736a490daf32b3fbbe9c8cca/FLAGb91d10e16 [2021-12-06 18:39:46,234 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef37634b-8133-48ea-b863-7a41a7c6b912/bin/uautomizer-DrprNOufMa/data/9d1d9de47/033f9381736a490daf32b3fbbe9c8cca [2021-12-06 18:39:46,236 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 18:39:46,237 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 18:39:46,238 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 18:39:46,238 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 18:39:46,240 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 18:39:46,241 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:39:46" (1/1) ... [2021-12-06 18:39:46,242 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76899654 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:39:46, skipping insertion in model container [2021-12-06 18:39:46,242 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:39:46" (1/1) ... [2021-12-06 18:39:46,248 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 18:39:46,316 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 18:39:46,474 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_ef37634b-8133-48ea-b863-7a41a7c6b912/sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c[1868,1881] [2021-12-06 18:39:46,824 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:39:46,837 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 18:39:46,852 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_ef37634b-8133-48ea-b863-7a41a7c6b912/sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c[1868,1881] [2021-12-06 18:39:46,997 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:39:47,034 INFO L208 MainTranslator]: Completed translation [2021-12-06 18:39:47,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:39:47 WrapperNode [2021-12-06 18:39:47,035 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 18:39:47,036 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 18:39:47,036 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 18:39:47,036 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 18:39:47,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:39:47" (1/1) ... [2021-12-06 18:39:47,091 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:39:47" (1/1) ... [2021-12-06 18:39:47,224 INFO L137 Inliner]: procedures = 99, calls = 2906, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8512 [2021-12-06 18:39:47,224 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 18:39:47,225 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 18:39:47,225 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 18:39:47,225 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 18:39:47,232 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:39:47" (1/1) ... [2021-12-06 18:39:47,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:39:47" (1/1) ... [2021-12-06 18:39:47,264 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:39:47" (1/1) ... [2021-12-06 18:39:47,264 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:39:47" (1/1) ... [2021-12-06 18:39:47,365 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:39:47" (1/1) ... [2021-12-06 18:39:47,412 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:39:47" (1/1) ... [2021-12-06 18:39:47,426 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:39:47" (1/1) ... [2021-12-06 18:39:47,448 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 18:39:47,449 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 18:39:47,449 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 18:39:47,449 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 18:39:47,450 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:39:47" (1/1) ... [2021-12-06 18:39:47,455 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:39:47,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef37634b-8133-48ea-b863-7a41a7c6b912/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:39:47,474 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef37634b-8133-48ea-b863-7a41a7c6b912/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 18:39:47,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef37634b-8133-48ea-b863-7a41a7c6b912/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 18:39:47,508 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2021-12-06 18:39:47,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2021-12-06 18:39:47,508 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2021-12-06 18:39:47,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2021-12-06 18:39:47,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 18:39:47,508 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2021-12-06 18:39:47,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2021-12-06 18:39:47,508 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-12-06 18:39:47,508 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-12-06 18:39:47,508 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2021-12-06 18:39:47,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2021-12-06 18:39:47,509 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2021-12-06 18:39:47,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2021-12-06 18:39:47,509 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2021-12-06 18:39:47,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2021-12-06 18:39:47,509 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2021-12-06 18:39:47,509 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2021-12-06 18:39:47,509 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2021-12-06 18:39:47,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2021-12-06 18:39:47,509 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2021-12-06 18:39:47,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2021-12-06 18:39:47,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 18:39:47,509 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-12-06 18:39:47,509 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-12-06 18:39:47,509 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2021-12-06 18:39:47,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2021-12-06 18:39:47,510 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2021-12-06 18:39:47,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2021-12-06 18:39:47,510 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2021-12-06 18:39:47,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2021-12-06 18:39:47,510 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2021-12-06 18:39:47,510 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2021-12-06 18:39:47,510 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2021-12-06 18:39:47,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2021-12-06 18:39:47,510 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-12-06 18:39:47,510 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-12-06 18:39:47,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 18:39:47,511 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-12-06 18:39:47,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-12-06 18:39:47,511 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2021-12-06 18:39:47,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2021-12-06 18:39:47,511 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2021-12-06 18:39:47,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2021-12-06 18:39:47,511 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2021-12-06 18:39:47,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2021-12-06 18:39:47,511 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-12-06 18:39:47,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-12-06 18:39:47,511 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2021-12-06 18:39:47,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2021-12-06 18:39:47,512 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-12-06 18:39:47,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-12-06 18:39:47,512 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2021-12-06 18:39:47,512 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2021-12-06 18:39:47,512 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2021-12-06 18:39:47,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2021-12-06 18:39:47,512 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2021-12-06 18:39:47,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2021-12-06 18:39:47,512 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2021-12-06 18:39:47,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2021-12-06 18:39:47,513 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2021-12-06 18:39:47,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2021-12-06 18:39:47,513 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2021-12-06 18:39:47,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2021-12-06 18:39:47,513 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2021-12-06 18:39:47,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2021-12-06 18:39:47,513 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2021-12-06 18:39:47,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2021-12-06 18:39:47,513 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2021-12-06 18:39:47,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2021-12-06 18:39:47,514 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2021-12-06 18:39:47,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2021-12-06 18:39:47,514 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2021-12-06 18:39:47,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2021-12-06 18:39:47,514 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2021-12-06 18:39:47,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2021-12-06 18:39:47,514 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2021-12-06 18:39:47,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2021-12-06 18:39:47,514 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2021-12-06 18:39:47,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2021-12-06 18:39:47,515 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2021-12-06 18:39:47,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2021-12-06 18:39:47,515 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2021-12-06 18:39:47,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2021-12-06 18:39:47,515 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2021-12-06 18:39:47,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2021-12-06 18:39:47,515 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2021-12-06 18:39:47,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2021-12-06 18:39:47,515 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2021-12-06 18:39:47,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2021-12-06 18:39:47,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 18:39:47,515 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2021-12-06 18:39:47,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2021-12-06 18:39:47,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 18:39:47,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 18:39:47,882 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 18:39:47,884 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 18:40:08,367 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 18:40:08,390 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 18:40:08,390 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-06 18:40:08,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:40:08 BoogieIcfgContainer [2021-12-06 18:40:08,395 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 18:40:08,396 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 18:40:08,396 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 18:40:08,399 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 18:40:08,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 06:39:46" (1/3) ... [2021-12-06 18:40:08,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61455fb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:40:08, skipping insertion in model container [2021-12-06 18:40:08,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:39:47" (2/3) ... [2021-12-06 18:40:08,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61455fb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:40:08, skipping insertion in model container [2021-12-06 18:40:08,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:40:08" (3/3) ... [2021-12-06 18:40:08,401 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_ctm.4.c [2021-12-06 18:40:08,404 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 18:40:08,404 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 18:40:08,451 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 18:40:08,455 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 18:40:08,456 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 18:40:08,505 INFO L276 IsEmpty]: Start isEmpty. Operand has 2469 states, 2115 states have (on average 1.4799054373522458) internal successors, (3130), 2139 states have internal predecessors, (3130), 308 states have call successors, (308), 44 states have call predecessors, (308), 44 states have return successors, (308), 298 states have call predecessors, (308), 308 states have call successors, (308) [2021-12-06 18:40:08,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-12-06 18:40:08,518 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:40:08,518 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] [2021-12-06 18:40:08,518 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:40:08,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:40:08,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1151272851, now seen corresponding path program 1 times [2021-12-06 18:40:08,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:40:08,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239696069] [2021-12-06 18:40:08,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:40:08,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms