./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.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_5bc55c6f-4cd6-47f9-80ac-5ce547bced83/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc55c6f-4cd6-47f9-80ac-5ce547bced83/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_5bc55c6f-4cd6-47f9-80ac-5ce547bced83/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc55c6f-4cd6-47f9-80ac-5ce547bced83/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc55c6f-4cd6-47f9-80ac-5ce547bced83/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_5bc55c6f-4cd6-47f9-80ac-5ce547bced83/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 0c11dfbc24d8e2936a0720b93d6e580e096b076c7149ef4cbc8369f1ef818941 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 01:30:49,332 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 01:30:49,333 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 01:30:49,376 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 01:30:49,377 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 01:30:49,378 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 01:30:49,379 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 01:30:49,382 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 01:30:49,384 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 01:30:49,399 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 01:30:49,400 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 01:30:49,401 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 01:30:49,401 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 01:30:49,403 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 01:30:49,404 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 01:30:49,405 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 01:30:49,406 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 01:30:49,407 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 01:30:49,409 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 01:30:49,411 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 01:30:49,413 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 01:30:49,415 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 01:30:49,416 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 01:30:49,417 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 01:30:49,420 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 01:30:49,420 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 01:30:49,421 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 01:30:49,422 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 01:30:49,422 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 01:30:49,423 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 01:30:49,424 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 01:30:49,424 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 01:30:49,425 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 01:30:49,426 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 01:30:49,427 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 01:30:49,427 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 01:30:49,428 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 01:30:49,428 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 01:30:49,428 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 01:30:49,429 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 01:30:49,429 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 01:30:49,430 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc55c6f-4cd6-47f9-80ac-5ce547bced83/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-07 01:30:49,447 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 01:30:49,447 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 01:30:49,448 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 01:30:49,448 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 01:30:49,448 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 01:30:49,448 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 01:30:49,449 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 01:30:49,449 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 01:30:49,449 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 01:30:49,449 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 01:30:49,449 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-07 01:30:49,449 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 01:30:49,450 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-07 01:30:49,450 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 01:30:49,450 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 01:30:49,450 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 01:30:49,450 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 01:30:49,450 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-07 01:30:49,450 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 01:30:49,450 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 01:30:49,451 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 01:30:49,451 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 01:30:49,451 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 01:30:49,451 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 01:30:49,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:30:49,451 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 01:30:49,451 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 01:30:49,452 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 01:30:49,452 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 01:30:49,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-07 01:30:49,452 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 01:30:49,452 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 01:30:49,452 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 01:30:49,452 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 01:30:49,452 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_5bc55c6f-4cd6-47f9-80ac-5ce547bced83/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc55c6f-4cd6-47f9-80ac-5ce547bced83/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c11dfbc24d8e2936a0720b93d6e580e096b076c7149ef4cbc8369f1ef818941 [2021-12-07 01:30:49,639 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 01:30:49,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 01:30:49,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 01:30:49,660 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 01:30:49,660 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 01:30:49,661 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc55c6f-4cd6-47f9-80ac-5ce547bced83/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c [2021-12-07 01:30:49,705 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc55c6f-4cd6-47f9-80ac-5ce547bced83/bin/uautomizer-DrprNOufMa/data/d6f8c2a3d/76e8f38e74384d2695b651e6e36e8275/FLAG0de99d6ae [2021-12-07 01:30:50,198 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 01:30:50,198 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc55c6f-4cd6-47f9-80ac-5ce547bced83/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c [2021-12-07 01:30:50,214 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc55c6f-4cd6-47f9-80ac-5ce547bced83/bin/uautomizer-DrprNOufMa/data/d6f8c2a3d/76e8f38e74384d2695b651e6e36e8275/FLAG0de99d6ae [2021-12-07 01:30:50,225 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc55c6f-4cd6-47f9-80ac-5ce547bced83/bin/uautomizer-DrprNOufMa/data/d6f8c2a3d/76e8f38e74384d2695b651e6e36e8275 [2021-12-07 01:30:50,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 01:30:50,228 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 01:30:50,229 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 01:30:50,229 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 01:30:50,232 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 01:30:50,232 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:30:50" (1/1) ... [2021-12-07 01:30:50,233 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@651e9273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:30:50, skipping insertion in model container [2021-12-07 01:30:50,234 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:30:50" (1/1) ... [2021-12-07 01:30:50,239 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 01:30:50,300 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 01:30:50,452 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_5bc55c6f-4cd6-47f9-80ac-5ce547bced83/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c[1870,1883] [2021-12-07 01:30:50,854 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:30:50,867 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 01:30:50,877 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_5bc55c6f-4cd6-47f9-80ac-5ce547bced83/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c[1870,1883] [2021-12-07 01:30:51,043 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:30:51,080 INFO L208 MainTranslator]: Completed translation [2021-12-07 01:30:51,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:30:51 WrapperNode [2021-12-07 01:30:51,081 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 01:30:51,082 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 01:30:51,082 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 01:30:51,082 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 01:30:51,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:30:51" (1/1) ... [2021-12-07 01:30:51,146 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:30:51" (1/1) ... [2021-12-07 01:30:51,326 INFO L137 Inliner]: procedures = 99, calls = 2816, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8376 [2021-12-07 01:30:51,327 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 01:30:51,327 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 01:30:51,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 01:30:51,327 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 01:30:51,334 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:30:51" (1/1) ... [2021-12-07 01:30:51,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:30:51" (1/1) ... [2021-12-07 01:30:51,358 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:30:51" (1/1) ... [2021-12-07 01:30:51,358 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:30:51" (1/1) ... [2021-12-07 01:30:51,441 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:30:51" (1/1) ... [2021-12-07 01:30:51,495 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:30:51" (1/1) ... [2021-12-07 01:30:51,514 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:30:51" (1/1) ... [2021-12-07 01:30:51,539 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 01:30:51,540 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 01:30:51,540 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 01:30:51,540 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 01:30:51,541 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:30:51" (1/1) ... [2021-12-07 01:30:51,547 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:30:51,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc55c6f-4cd6-47f9-80ac-5ce547bced83/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:30:51,569 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc55c6f-4cd6-47f9-80ac-5ce547bced83/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 01:30:51,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc55c6f-4cd6-47f9-80ac-5ce547bced83/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 01:30:51,605 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2021-12-07 01:30:51,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2021-12-07 01:30:51,605 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2021-12-07 01:30:51,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2021-12-07 01:30:51,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-07 01:30:51,605 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2021-12-07 01:30:51,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2021-12-07 01:30:51,605 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-12-07 01:30:51,606 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-12-07 01:30:51,606 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2021-12-07 01:30:51,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2021-12-07 01:30:51,606 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2021-12-07 01:30:51,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2021-12-07 01:30:51,606 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2021-12-07 01:30:51,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2021-12-07 01:30:51,606 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2021-12-07 01:30:51,606 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2021-12-07 01:30:51,606 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2021-12-07 01:30:51,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2021-12-07 01:30:51,607 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2021-12-07 01:30:51,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2021-12-07 01:30:51,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-07 01:30:51,607 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-12-07 01:30:51,607 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-12-07 01:30:51,607 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2021-12-07 01:30:51,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2021-12-07 01:30:51,607 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2021-12-07 01:30:51,608 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2021-12-07 01:30:51,608 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2021-12-07 01:30:51,608 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2021-12-07 01:30:51,608 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2021-12-07 01:30:51,608 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2021-12-07 01:30:51,608 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2021-12-07 01:30:51,608 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2021-12-07 01:30:51,608 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-12-07 01:30:51,608 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-12-07 01:30:51,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 01:30:51,609 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-12-07 01:30:51,609 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-12-07 01:30:51,609 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2021-12-07 01:30:51,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2021-12-07 01:30:51,609 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2021-12-07 01:30:51,609 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2021-12-07 01:30:51,609 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2021-12-07 01:30:51,609 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2021-12-07 01:30:51,610 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-12-07 01:30:51,610 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-12-07 01:30:51,610 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2021-12-07 01:30:51,610 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2021-12-07 01:30:51,610 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-12-07 01:30:51,610 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-12-07 01:30:51,610 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2021-12-07 01:30:51,610 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2021-12-07 01:30:51,610 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2021-12-07 01:30:51,610 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2021-12-07 01:30:51,611 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2021-12-07 01:30:51,611 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2021-12-07 01:30:51,611 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2021-12-07 01:30:51,611 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2021-12-07 01:30:51,611 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2021-12-07 01:30:51,611 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2021-12-07 01:30:51,611 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2021-12-07 01:30:51,611 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2021-12-07 01:30:51,611 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2021-12-07 01:30:51,612 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2021-12-07 01:30:51,612 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2021-12-07 01:30:51,612 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2021-12-07 01:30:51,612 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2021-12-07 01:30:51,612 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2021-12-07 01:30:51,612 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2021-12-07 01:30:51,612 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2021-12-07 01:30:51,612 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2021-12-07 01:30:51,612 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2021-12-07 01:30:51,613 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2021-12-07 01:30:51,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2021-12-07 01:30:51,613 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2021-12-07 01:30:51,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2021-12-07 01:30:51,613 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2021-12-07 01:30:51,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2021-12-07 01:30:51,613 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2021-12-07 01:30:51,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2021-12-07 01:30:51,613 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2021-12-07 01:30:51,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2021-12-07 01:30:51,614 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2021-12-07 01:30:51,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2021-12-07 01:30:51,614 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2021-12-07 01:30:51,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2021-12-07 01:30:51,614 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2021-12-07 01:30:51,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2021-12-07 01:30:51,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 01:30:51,614 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2021-12-07 01:30:51,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2021-12-07 01:30:51,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 01:30:51,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 01:30:51,973 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 01:30:51,975 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 01:31:08,005 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 01:31:08,031 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 01:31:08,031 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-07 01:31:08,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:31:08 BoogieIcfgContainer [2021-12-07 01:31:08,036 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 01:31:08,038 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 01:31:08,038 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 01:31:08,041 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 01:31:08,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:30:50" (1/3) ... [2021-12-07 01:31:08,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aba3a1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:31:08, skipping insertion in model container [2021-12-07 01:31:08,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:30:51" (2/3) ... [2021-12-07 01:31:08,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aba3a1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:31:08, skipping insertion in model container [2021-12-07 01:31:08,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:31:08" (3/3) ... [2021-12-07 01:31:08,044 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_ctm.3-1.c [2021-12-07 01:31:08,049 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 01:31:08,050 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-07 01:31:08,097 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 01:31:08,102 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 01:31:08,103 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-07 01:31:08,162 INFO L276 IsEmpty]: Start isEmpty. Operand has 2465 states, 2113 states have (on average 1.4803596781826787) internal successors, (3128), 2137 states have internal predecessors, (3128), 306 states have call successors, (306), 44 states have call predecessors, (306), 44 states have return successors, (306), 296 states have call predecessors, (306), 306 states have call successors, (306) [2021-12-07 01:31:08,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-12-07 01:31:08,178 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:31:08,179 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 01:31:08,179 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:31:08,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:31:08,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1381223433, now seen corresponding path program 1 times [2021-12-07 01:31:08,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:31:08,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709614536] [2021-12-07 01:31:08,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:31:08,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms