./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M1-2.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_28b773af-9de8-4a2d-a16c-b0720ade4c22/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28b773af-9de8-4a2d-a16c-b0720ade4c22/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_28b773af-9de8-4a2d-a16c-b0720ade4c22/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28b773af-9de8-4a2d-a16c-b0720ade4c22/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M1-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28b773af-9de8-4a2d-a16c-b0720ade4c22/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_28b773af-9de8-4a2d-a16c-b0720ade4c22/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 62587b117a9681076835c6b8632932457a449dd934a075adad6a2d524a609396 --- 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 17:14:12,973 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:14:12,974 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:14:12,995 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:14:12,996 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:14:12,997 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:14:12,998 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:14:13,000 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:14:13,002 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:14:13,003 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:14:13,004 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:14:13,005 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:14:13,006 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:14:13,007 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:14:13,008 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:14:13,010 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:14:13,011 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:14:13,012 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:14:13,014 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:14:13,016 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:14:13,017 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:14:13,019 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:14:13,020 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:14:13,021 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:14:13,026 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:14:13,026 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:14:13,027 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:14:13,028 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:14:13,028 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:14:13,029 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:14:13,030 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:14:13,031 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:14:13,031 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:14:13,032 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:14:13,034 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:14:13,034 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:14:13,035 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:14:13,035 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:14:13,036 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:14:13,037 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:14:13,038 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:14:13,039 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28b773af-9de8-4a2d-a16c-b0720ade4c22/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-21 17:14:13,065 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:14:13,065 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:14:13,066 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:14:13,066 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:14:13,067 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:14:13,067 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:14:13,068 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:14:13,068 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:14:13,069 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:14:13,069 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:14:13,069 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 17:14:13,070 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:14:13,070 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 17:14:13,070 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:14:13,070 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:14:13,071 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:14:13,071 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:14:13,071 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 17:14:13,071 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:14:13,071 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:14:13,072 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:14:13,072 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:14:13,072 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:14:13,072 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:14:13,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:14:13,073 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:14:13,073 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:14:13,073 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:14:13,074 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 17:14:13,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 17:14:13,074 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:14:13,074 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:14:13,075 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:14:13,075 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_28b773af-9de8-4a2d-a16c-b0720ade4c22/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28b773af-9de8-4a2d-a16c-b0720ade4c22/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 62587b117a9681076835c6b8632932457a449dd934a075adad6a2d524a609396 [2022-11-21 17:14:13,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:14:13,402 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:14:13,405 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:14:13,407 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:14:13,407 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:14:13,409 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28b773af-9de8-4a2d-a16c-b0720ade4c22/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M1-2.c [2022-11-21 17:14:16,704 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:14:17,205 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:14:17,210 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28b773af-9de8-4a2d-a16c-b0720ade4c22/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M1-2.c [2022-11-21 17:14:17,244 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28b773af-9de8-4a2d-a16c-b0720ade4c22/bin/uautomizer-vX5HgA9Q3a/data/8db313192/bd6a4c55540a4d3fae5a7e11d9ebd64f/FLAG0669d0427 [2022-11-21 17:14:17,276 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28b773af-9de8-4a2d-a16c-b0720ade4c22/bin/uautomizer-vX5HgA9Q3a/data/8db313192/bd6a4c55540a4d3fae5a7e11d9ebd64f [2022-11-21 17:14:17,283 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:14:17,287 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:14:17,292 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:14:17,292 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:14:17,297 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:14:17,298 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:14:17" (1/1) ... [2022-11-21 17:14:17,299 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79573190 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:14:17, skipping insertion in model container [2022-11-21 17:14:17,300 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:14:17" (1/1) ... [2022-11-21 17:14:17,309 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:14:17,392 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:14:17,635 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_28b773af-9de8-4a2d-a16c-b0720ade4c22/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M1-2.c[1673,1686] [2022-11-21 17:14:17,992 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:14:18,028 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:14:18,046 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_28b773af-9de8-4a2d-a16c-b0720ade4c22/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M1-2.c[1673,1686] [2022-11-21 17:14:18,381 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:14:18,420 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:14:18,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:14:18 WrapperNode [2022-11-21 17:14:18,421 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:14:18,423 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:14:18,423 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:14:18,423 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:14:18,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:14:18" (1/1) ... [2022-11-21 17:14:18,499 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:14:18" (1/1) ... [2022-11-21 17:14:18,703 INFO L138 Inliner]: procedures = 57, calls = 1672, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 3715 [2022-11-21 17:14:18,704 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:14:18,704 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:14:18,705 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:14:18,705 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:14:18,718 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:14:18" (1/1) ... [2022-11-21 17:14:18,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:14:18" (1/1) ... [2022-11-21 17:14:18,749 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:14:18" (1/1) ... [2022-11-21 17:14:18,751 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:14:18" (1/1) ... [2022-11-21 17:14:18,933 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:14:18" (1/1) ... [2022-11-21 17:14:18,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:14:18" (1/1) ... [2022-11-21 17:14:18,972 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:14:18" (1/1) ... [2022-11-21 17:14:18,993 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:14:18" (1/1) ... [2022-11-21 17:14:19,036 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:14:19,038 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:14:19,039 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:14:19,040 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:14:19,041 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:14:18" (1/1) ... [2022-11-21 17:14:19,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:14:19,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28b773af-9de8-4a2d-a16c-b0720ade4c22/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:14:19,081 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28b773af-9de8-4a2d-a16c-b0720ade4c22/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:14:19,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28b773af-9de8-4a2d-a16c-b0720ade4c22/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:14:19,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 17:14:19,131 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-11-21 17:14:19,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-11-21 17:14:19,131 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-11-21 17:14:19,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-11-21 17:14:19,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 17:14:19,132 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-11-21 17:14:19,132 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-11-21 17:14:19,132 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-11-21 17:14:19,132 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-11-21 17:14:19,132 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-11-21 17:14:19,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-11-21 17:14:19,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 17:14:19,133 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-11-21 17:14:19,133 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-11-21 17:14:19,133 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-11-21 17:14:19,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-11-21 17:14:19,202 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-11-21 17:14:19,202 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-11-21 17:14:19,202 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-11-21 17:14:19,202 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-11-21 17:14:19,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 17:14:19,203 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2022-11-21 17:14:19,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2022-11-21 17:14:19,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 17:14:19,203 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-11-21 17:14:19,203 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-11-21 17:14:19,203 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-21 17:14:19,203 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-21 17:14:19,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 17:14:19,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:14:19,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:14:19,204 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-11-21 17:14:19,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-11-21 17:14:19,204 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-11-21 17:14:19,204 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-11-21 17:14:19,204 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-11-21 17:14:19,204 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-11-21 17:14:19,715 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:14:19,718 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:14:27,397 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:14:27,424 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:14:27,425 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 17:14:27,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:14:27 BoogieIcfgContainer [2022-11-21 17:14:27,431 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:14:27,435 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:14:27,435 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:14:27,439 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:14:27,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:14:17" (1/3) ... [2022-11-21 17:14:27,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a6e2905 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:14:27, skipping insertion in model container [2022-11-21 17:14:27,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:14:18" (2/3) ... [2022-11-21 17:14:27,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a6e2905 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:14:27, skipping insertion in model container [2022-11-21 17:14:27,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:14:27" (3/3) ... [2022-11-21 17:14:27,446 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.1.M1-2.c [2022-11-21 17:14:27,470 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:14:27,470 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 17:14:27,580 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:14:27,588 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;@6d6bcb2c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:14:27,589 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 17:14:27,601 INFO L276 IsEmpty]: Start isEmpty. Operand has 1138 states, 729 states have (on average 1.289437585733882) internal successors, (940), 761 states have internal predecessors, (940), 392 states have call successors, (392), 15 states have call predecessors, (392), 15 states have return successors, (392), 390 states have call predecessors, (392), 392 states have call successors, (392) [2022-11-21 17:14:27,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 723 [2022-11-21 17:14:27,691 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:14:27,693 INFO L195 NwaCegarLoop]: trace histogram [85, 85, 85, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:14:27,694 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:14:27,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:14:27,703 INFO L85 PathProgramCache]: Analyzing trace with hash -435675448, now seen corresponding path program 1 times [2022-11-21 17:14:27,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:14:27,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547759252] [2022-11-21 17:14:27,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:14:27,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms