./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekcba_ctm.2-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cebea0d9-7506-4cb9-b753-8a64ccfd4f59/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cebea0d9-7506-4cb9-b753-8a64ccfd4f59/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cebea0d9-7506-4cb9-b753-8a64ccfd4f59/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cebea0d9-7506-4cb9-b753-8a64ccfd4f59/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekcba_ctm.2-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cebea0d9-7506-4cb9-b753-8a64ccfd4f59/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cebea0d9-7506-4cb9-b753-8a64ccfd4f59/bin/uautomizer-vX5HgA9Q3a --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 b6fd990ee5a3d1196da7f04012a4fa03f310aee567403c5800bf2a09c38760f5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 17:21:09,411 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:21:09,413 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:21:09,434 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:21:09,435 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:21:09,436 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:21:09,437 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:21:09,439 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:21:09,441 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:21:09,442 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:21:09,443 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:21:09,445 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:21:09,445 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:21:09,446 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:21:09,448 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:21:09,449 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:21:09,450 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:21:09,451 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:21:09,453 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:21:09,456 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:21:09,457 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:21:09,459 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:21:09,460 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:21:09,461 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:21:09,470 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:21:09,471 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:21:09,478 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:21:09,479 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:21:09,480 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:21:09,481 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:21:09,481 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:21:09,482 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:21:09,483 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:21:09,484 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:21:09,489 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:21:09,490 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:21:09,491 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:21:09,491 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:21:09,495 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:21:09,496 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:21:09,497 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:21:09,498 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cebea0d9-7506-4cb9-b753-8a64ccfd4f59/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-21 17:21:09,535 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:21:09,536 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:21:09,537 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:21:09,537 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:21:09,538 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:21:09,539 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:21:09,539 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:21:09,540 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:21:09,540 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:21:09,540 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:21:09,541 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 17:21:09,542 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:21:09,542 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 17:21:09,542 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:21:09,542 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:21:09,543 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:21:09,543 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:21:09,543 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 17:21:09,543 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:21:09,544 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:21:09,544 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:21:09,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:21:09,544 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:21:09,544 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:21:09,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:21:09,545 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:21:09,545 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:21:09,545 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:21:09,546 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 17:21:09,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 17:21:09,547 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:21:09,547 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:21:09,547 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:21:09,547 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_cebea0d9-7506-4cb9-b753-8a64ccfd4f59/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cebea0d9-7506-4cb9-b753-8a64ccfd4f59/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6fd990ee5a3d1196da7f04012a4fa03f310aee567403c5800bf2a09c38760f5 [2022-11-21 17:21:09,856 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:21:09,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:21:09,886 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:21:09,888 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:21:09,889 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:21:09,890 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cebea0d9-7506-4cb9-b753-8a64ccfd4f59/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/seq-mthreaded/rekcba_ctm.2-2.c [2022-11-21 17:21:13,042 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:21:13,581 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:21:13,582 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cebea0d9-7506-4cb9-b753-8a64ccfd4f59/sv-benchmarks/c/seq-mthreaded/rekcba_ctm.2-2.c [2022-11-21 17:21:13,635 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cebea0d9-7506-4cb9-b753-8a64ccfd4f59/bin/uautomizer-vX5HgA9Q3a/data/1a9ba694f/92b5cfeff40d430ca2206ccbd767c127/FLAG25d1cf564 [2022-11-21 17:21:13,656 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cebea0d9-7506-4cb9-b753-8a64ccfd4f59/bin/uautomizer-vX5HgA9Q3a/data/1a9ba694f/92b5cfeff40d430ca2206ccbd767c127 [2022-11-21 17:21:13,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:21:13,663 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:21:13,668 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:21:13,668 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:21:13,672 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:21:13,673 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:21:13" (1/1) ... [2022-11-21 17:21:13,674 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@369a70ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:21:13, skipping insertion in model container [2022-11-21 17:21:13,675 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:21:13" (1/1) ... [2022-11-21 17:21:13,684 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:21:13,843 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:21:14,158 WARN L237 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_cebea0d9-7506-4cb9-b753-8a64ccfd4f59/sv-benchmarks/c/seq-mthreaded/rekcba_ctm.2-2.c[2215,2228] [2022-11-21 17:21:15,275 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:21:15,304 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:21:15,324 WARN L237 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_cebea0d9-7506-4cb9-b753-8a64ccfd4f59/sv-benchmarks/c/seq-mthreaded/rekcba_ctm.2-2.c[2215,2228] [2022-11-21 17:21:15,886 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:21:15,934 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:21:15,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:21:15 WrapperNode [2022-11-21 17:21:15,935 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:21:15,936 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:21:15,936 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:21:15,936 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:21:15,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:21:15" (1/1) ... [2022-11-21 17:21:16,100 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:21:15" (1/1) ... [2022-11-21 17:21:16,801 INFO L138 Inliner]: procedures = 101, calls = 6644, calls flagged for inlining = 37, calls inlined = 37, statements flattened = 21123 [2022-11-21 17:21:16,802 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:21:16,803 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:21:16,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:21:16,803 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:21:16,813 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:21:15" (1/1) ... [2022-11-21 17:21:16,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:21:15" (1/1) ... [2022-11-21 17:21:17,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:21:15" (1/1) ... [2022-11-21 17:21:17,037 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:21:15" (1/1) ... [2022-11-21 17:21:17,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:21:15" (1/1) ... [2022-11-21 17:21:17,634 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:21:15" (1/1) ... [2022-11-21 17:21:17,776 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:21:15" (1/1) ... [2022-11-21 17:21:17,825 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:21:15" (1/1) ... [2022-11-21 17:21:17,929 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:21:17,931 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:21:17,932 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:21:17,932 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:21:17,933 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:21:15" (1/1) ... [2022-11-21 17:21:17,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:21:17,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cebea0d9-7506-4cb9-b753-8a64ccfd4f59/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:21:18,009 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cebea0d9-7506-4cb9-b753-8a64ccfd4f59/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:21:18,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cebea0d9-7506-4cb9-b753-8a64ccfd4f59/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:21:18,130 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-11-21 17:21:18,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-11-21 17:21:18,131 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-11-21 17:21:18,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-11-21 17:21:18,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 17:21:18,132 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-11-21 17:21:18,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-11-21 17:21:18,133 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-11-21 17:21:18,133 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-11-21 17:21:18,133 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-11-21 17:21:18,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-11-21 17:21:18,134 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-11-21 17:21:18,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-11-21 17:21:18,134 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-11-21 17:21:18,134 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-11-21 17:21:18,134 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-11-21 17:21:18,135 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-11-21 17:21:18,135 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-11-21 17:21:18,135 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-11-21 17:21:18,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 17:21:18,135 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-11-21 17:21:18,136 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-11-21 17:21:18,136 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-11-21 17:21:18,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-11-21 17:21:18,136 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-11-21 17:21:18,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-11-21 17:21:18,137 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-11-21 17:21:18,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-11-21 17:21:18,137 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-11-21 17:21:18,137 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-11-21 17:21:18,138 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-11-21 17:21:18,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-11-21 17:21:18,139 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-11-21 17:21:18,139 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-11-21 17:21:18,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 17:21:18,141 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-11-21 17:21:18,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-11-21 17:21:18,141 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-11-21 17:21:18,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-11-21 17:21:18,141 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-11-21 17:21:18,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-11-21 17:21:18,142 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-11-21 17:21:18,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-11-21 17:21:18,142 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-11-21 17:21:18,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-11-21 17:21:18,143 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-11-21 17:21:18,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-11-21 17:21:18,143 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-11-21 17:21:18,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-11-21 17:21:18,144 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-11-21 17:21:18,144 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-11-21 17:21:18,144 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-11-21 17:21:18,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-11-21 17:21:18,145 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-11-21 17:21:18,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-11-21 17:21:18,146 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-11-21 17:21:18,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-11-21 17:21:18,146 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-11-21 17:21:18,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-11-21 17:21:18,147 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-11-21 17:21:18,147 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-11-21 17:21:18,148 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-21 17:21:18,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-21 17:21:18,148 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-11-21 17:21:18,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-11-21 17:21:18,149 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-11-21 17:21:18,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-11-21 17:21:18,149 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-11-21 17:21:18,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-11-21 17:21:18,150 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-11-21 17:21:18,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-11-21 17:21:18,150 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-11-21 17:21:18,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-11-21 17:21:18,150 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-11-21 17:21:18,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-11-21 17:21:18,151 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-11-21 17:21:18,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-11-21 17:21:18,151 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-11-21 17:21:18,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-11-21 17:21:18,152 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2022-11-21 17:21:18,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2022-11-21 17:21:18,152 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-11-21 17:21:18,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-11-21 17:21:18,153 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-11-21 17:21:18,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-11-21 17:21:18,154 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-11-21 17:21:18,154 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-11-21 17:21:18,154 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2022-11-21 17:21:18,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2022-11-21 17:21:18,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 17:21:18,156 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-11-21 17:21:18,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-11-21 17:21:18,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:21:18,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:21:19,458 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:21:19,462 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:22:57,462 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:22:57,499 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:22:57,499 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-21 17:22:57,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:22:57 BoogieIcfgContainer [2022-11-21 17:22:57,507 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:22:57,509 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:22:57,509 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:22:57,513 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:22:57,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:21:13" (1/3) ... [2022-11-21 17:22:57,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24b29ea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:22:57, skipping insertion in model container [2022-11-21 17:22:57,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:21:15" (2/3) ... [2022-11-21 17:22:57,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24b29ea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:22:57, skipping insertion in model container [2022-11-21 17:22:57,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:22:57" (3/3) ... [2022-11-21 17:22:57,516 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_ctm.2-2.c [2022-11-21 17:22:57,536 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:22:57,536 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 17:22:57,662 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:22:57,669 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1a911bf6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:22:57,669 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 17:22:57,686 INFO L276 IsEmpty]: Start isEmpty. Operand has 4816 states, 4428 states have (on average 1.5474254742547426) internal successors, (6852), 4452 states have internal predecessors, (6852), 342 states have call successors, (342), 44 states have call predecessors, (342), 44 states have return successors, (342), 332 states have call predecessors, (342), 342 states have call successors, (342) [2022-11-21 17:22:57,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1934 [2022-11-21 17:22:57,872 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:22:57,874 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:22:57,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:22:57,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1566952982, now seen corresponding path program 1 times [2022-11-21 17:22:57,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:22:57,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030996430] [2022-11-21 17:22:57,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:22:57,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms