./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M1.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_8654b3a1-f1c8-446d-b3a1-11bdbfe6786f/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8654b3a1-f1c8-446d-b3a1-11bdbfe6786f/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_8654b3a1-f1c8-446d-b3a1-11bdbfe6786f/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8654b3a1-f1c8-446d-b3a1-11bdbfe6786f/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8654b3a1-f1c8-446d-b3a1-11bdbfe6786f/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_8654b3a1-f1c8-446d-b3a1-11bdbfe6786f/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 d1acaf5881e7bc6fb96063443cb57a4aeaaabd457c070b840e9f79d5e20a5abf --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 00:06:43,377 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 00:06:43,379 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 00:06:43,410 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 00:06:43,410 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 00:06:43,411 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 00:06:43,412 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 00:06:43,414 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 00:06:43,416 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 00:06:43,417 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 00:06:43,434 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 00:06:43,436 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 00:06:43,436 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 00:06:43,437 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 00:06:43,439 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 00:06:43,440 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 00:06:43,441 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 00:06:43,442 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 00:06:43,444 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 00:06:43,447 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 00:06:43,449 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 00:06:43,450 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 00:06:43,451 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 00:06:43,451 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 00:06:43,455 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 00:06:43,455 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 00:06:43,456 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 00:06:43,457 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 00:06:43,457 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 00:06:43,458 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 00:06:43,459 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 00:06:43,460 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 00:06:43,460 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 00:06:43,461 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 00:06:43,462 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 00:06:43,462 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 00:06:43,463 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 00:06:43,463 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 00:06:43,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 00:06:43,464 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 00:06:43,465 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 00:06:43,466 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8654b3a1-f1c8-446d-b3a1-11bdbfe6786f/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-07 00:06:43,484 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 00:06:43,484 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 00:06:43,485 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 00:06:43,485 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 00:06:43,485 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 00:06:43,485 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 00:06:43,486 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 00:06:43,486 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 00:06:43,486 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 00:06:43,486 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 00:06:43,486 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-07 00:06:43,486 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 00:06:43,486 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-07 00:06:43,487 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 00:06:43,487 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 00:06:43,487 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 00:06:43,487 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 00:06:43,487 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-07 00:06:43,487 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 00:06:43,487 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 00:06:43,487 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 00:06:43,487 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 00:06:43,487 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 00:06:43,488 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 00:06:43,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:06:43,488 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 00:06:43,488 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 00:06:43,488 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 00:06:43,488 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 00:06:43,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-07 00:06:43,488 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 00:06:43,488 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 00:06:43,489 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 00:06:43,489 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 00:06:43,489 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_8654b3a1-f1c8-446d-b3a1-11bdbfe6786f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8654b3a1-f1c8-446d-b3a1-11bdbfe6786f/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d1acaf5881e7bc6fb96063443cb57a4aeaaabd457c070b840e9f79d5e20a5abf [2021-12-07 00:06:43,648 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 00:06:43,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 00:06:43,671 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 00:06:43,672 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 00:06:43,672 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 00:06:43,674 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8654b3a1-f1c8-446d-b3a1-11bdbfe6786f/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M1.c [2021-12-07 00:06:43,717 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8654b3a1-f1c8-446d-b3a1-11bdbfe6786f/bin/uautomizer-DrprNOufMa/data/0dd94abbe/f6e0ea1ae8fb44c49b85172c9ed499fd/FLAG2b5d2a1b4 [2021-12-07 00:06:44,196 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 00:06:44,197 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8654b3a1-f1c8-446d-b3a1-11bdbfe6786f/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M1.c [2021-12-07 00:06:44,210 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8654b3a1-f1c8-446d-b3a1-11bdbfe6786f/bin/uautomizer-DrprNOufMa/data/0dd94abbe/f6e0ea1ae8fb44c49b85172c9ed499fd/FLAG2b5d2a1b4 [2021-12-07 00:06:44,221 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8654b3a1-f1c8-446d-b3a1-11bdbfe6786f/bin/uautomizer-DrprNOufMa/data/0dd94abbe/f6e0ea1ae8fb44c49b85172c9ed499fd [2021-12-07 00:06:44,223 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 00:06:44,225 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 00:06:44,226 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 00:06:44,226 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 00:06:44,229 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 00:06:44,230 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:06:44" (1/1) ... [2021-12-07 00:06:44,231 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42a2a508 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:06:44, skipping insertion in model container [2021-12-07 00:06:44,231 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:06:44" (1/1) ... [2021-12-07 00:06:44,239 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 00:06:44,286 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 00:06:44,423 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_8654b3a1-f1c8-446d-b3a1-11bdbfe6786f/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M1.c[2017,2030] [2021-12-07 00:06:44,719 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:06:44,732 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 00:06:44,745 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_8654b3a1-f1c8-446d-b3a1-11bdbfe6786f/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M1.c[2017,2030] [2021-12-07 00:06:44,908 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:06:44,925 INFO L208 MainTranslator]: Completed translation [2021-12-07 00:06:44,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:06:44 WrapperNode [2021-12-07 00:06:44,926 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 00:06:44,926 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 00:06:44,926 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 00:06:44,927 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 00:06:44,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:06:44" (1/1) ... [2021-12-07 00:06:44,976 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:06:44" (1/1) ... [2021-12-07 00:06:45,079 INFO L137 Inliner]: procedures = 62, calls = 1929, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 4123 [2021-12-07 00:06:45,079 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 00:06:45,080 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 00:06:45,080 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 00:06:45,080 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 00:06:45,086 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:06:44" (1/1) ... [2021-12-07 00:06:45,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:06:44" (1/1) ... [2021-12-07 00:06:45,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:06:44" (1/1) ... [2021-12-07 00:06:45,102 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:06:44" (1/1) ... [2021-12-07 00:06:45,163 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:06:44" (1/1) ... [2021-12-07 00:06:45,177 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:06:44" (1/1) ... [2021-12-07 00:06:45,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:06:44" (1/1) ... [2021-12-07 00:06:45,224 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 00:06:45,225 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 00:06:45,225 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 00:06:45,225 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 00:06:45,226 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:06:44" (1/1) ... [2021-12-07 00:06:45,233 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:06:45,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8654b3a1-f1c8-446d-b3a1-11bdbfe6786f/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:06:45,254 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8654b3a1-f1c8-446d-b3a1-11bdbfe6786f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 00:06:45,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8654b3a1-f1c8-446d-b3a1-11bdbfe6786f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 00:06:45,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 00:06:45,293 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-12-07 00:06:45,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-12-07 00:06:45,293 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2021-12-07 00:06:45,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2021-12-07 00:06:45,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-07 00:06:45,294 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-12-07 00:06:45,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-12-07 00:06:45,294 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-12-07 00:06:45,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-12-07 00:06:45,294 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_observer_obstacle_flag [2021-12-07 00:06:45,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_observer_obstacle_flag [2021-12-07 00:06:45,294 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2021-12-07 00:06:45,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2021-12-07 00:06:45,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-07 00:06:45,294 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-12-07 00:06:45,295 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-12-07 00:06:45,295 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2021-12-07 00:06:45,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2021-12-07 00:06:45,295 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2021-12-07 00:06:45,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2021-12-07 00:06:45,295 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2021-12-07 00:06:45,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2021-12-07 00:06:45,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-07 00:06:45,295 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2021-12-07 00:06:45,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2021-12-07 00:06:45,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-07 00:06:45,295 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-12-07 00:06:45,296 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-12-07 00:06:45,296 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2021-12-07 00:06:45,296 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2021-12-07 00:06:45,296 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2021-12-07 00:06:45,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2021-12-07 00:06:45,296 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-07 00:06:45,296 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-07 00:06:45,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 00:06:45,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 00:06:45,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 00:06:45,296 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2021-12-07 00:06:45,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2021-12-07 00:06:45,297 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-12-07 00:06:45,297 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-12-07 00:06:45,297 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2021-12-07 00:06:45,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2021-12-07 00:06:45,618 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 00:06:45,619 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 00:06:51,551 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 00:06:51,569 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 00:06:51,569 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-07 00:06:51,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:06:51 BoogieIcfgContainer [2021-12-07 00:06:51,573 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 00:06:51,574 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 00:06:51,574 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 00:06:51,577 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 00:06:51,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:06:44" (1/3) ... [2021-12-07 00:06:51,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@269270f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:06:51, skipping insertion in model container [2021-12-07 00:06:51,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:06:44" (2/3) ... [2021-12-07 00:06:51,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@269270f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:06:51, skipping insertion in model container [2021-12-07 00:06:51,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:06:51" (3/3) ... [2021-12-07 00:06:51,579 INFO L111 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.3.M1.c [2021-12-07 00:06:51,584 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 00:06:51,584 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-07 00:06:51,626 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 00:06:51,632 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 00:06:51,632 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-07 00:06:51,676 INFO L276 IsEmpty]: Start isEmpty. Operand has 1290 states, 815 states have (on average 1.2748466257668711) internal successors, (1039), 846 states have internal predecessors, (1039), 455 states have call successors, (455), 18 states have call predecessors, (455), 18 states have return successors, (455), 453 states have call predecessors, (455), 455 states have call successors, (455) [2021-12-07 00:06:51,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 879 [2021-12-07 00:06:51,731 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:06:51,732 INFO L514 BasicCegarLoop]: trace histogram [111, 111, 111, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:06:51,733 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:06:51,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:06:51,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1711506897, now seen corresponding path program 1 times [2021-12-07 00:06:51,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:06:51,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858518602] [2021-12-07 00:06:51,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:06:51,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms