./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.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_bddd7b5f-02ab-4002-88aa-7220fa1b48a6/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bddd7b5f-02ab-4002-88aa-7220fa1b48a6/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_bddd7b5f-02ab-4002-88aa-7220fa1b48a6/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bddd7b5f-02ab-4002-88aa-7220fa1b48a6/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bddd7b5f-02ab-4002-88aa-7220fa1b48a6/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_bddd7b5f-02ab-4002-88aa-7220fa1b48a6/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 c3ec7c03a28dc415c6db5fadbfd8dcd491b1a493cd1bf88ef12d02131cd13437 --- 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 17:05:55,152 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:05:55,155 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:05:55,195 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:05:55,195 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:05:55,197 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:05:55,198 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:05:55,200 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:05:55,202 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:05:55,203 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:05:55,204 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:05:55,212 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:05:55,212 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:05:55,218 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:05:55,221 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:05:55,224 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:05:55,226 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:05:55,228 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:05:55,230 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:05:55,237 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:05:55,241 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:05:55,244 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:05:55,246 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:05:55,248 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:05:55,254 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:05:55,254 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:05:55,255 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:05:55,256 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:05:55,256 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:05:55,257 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:05:55,257 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:05:55,258 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:05:55,259 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:05:55,260 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:05:55,261 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:05:55,261 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:05:55,262 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:05:55,262 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:05:55,262 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:05:55,263 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:05:55,269 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:05:55,271 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bddd7b5f-02ab-4002-88aa-7220fa1b48a6/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-21 17:05:55,301 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:05:55,302 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:05:55,302 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:05:55,303 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:05:55,303 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:05:55,304 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:05:55,304 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:05:55,305 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:05:55,305 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:05:55,305 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:05:55,306 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 17:05:55,306 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:05:55,306 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 17:05:55,306 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:05:55,307 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:05:55,307 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:05:55,307 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:05:55,308 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 17:05:55,308 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:05:55,308 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:05:55,308 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:05:55,309 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:05:55,309 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:05:55,309 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:05:55,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:05:55,310 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:05:55,310 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:05:55,310 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:05:55,311 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 17:05:55,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 17:05:55,312 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:05:55,312 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:05:55,313 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:05:55,313 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_bddd7b5f-02ab-4002-88aa-7220fa1b48a6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bddd7b5f-02ab-4002-88aa-7220fa1b48a6/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3ec7c03a28dc415c6db5fadbfd8dcd491b1a493cd1bf88ef12d02131cd13437 [2022-11-21 17:05:55,673 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:05:55,713 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:05:55,715 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:05:55,716 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:05:55,717 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:05:55,718 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bddd7b5f-02ab-4002-88aa-7220fa1b48a6/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c [2022-11-21 17:05:58,716 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:05:59,151 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:05:59,153 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bddd7b5f-02ab-4002-88aa-7220fa1b48a6/sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c [2022-11-21 17:05:59,188 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bddd7b5f-02ab-4002-88aa-7220fa1b48a6/bin/uautomizer-vX5HgA9Q3a/data/8295bb030/46b7e1ad6e2a4ead85290acc786c39c3/FLAGe3323bd80 [2022-11-21 17:05:59,209 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bddd7b5f-02ab-4002-88aa-7220fa1b48a6/bin/uautomizer-vX5HgA9Q3a/data/8295bb030/46b7e1ad6e2a4ead85290acc786c39c3 [2022-11-21 17:05:59,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:05:59,214 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:05:59,224 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:05:59,224 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:05:59,228 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:05:59,229 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:05:59" (1/1) ... [2022-11-21 17:05:59,230 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d0d489b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:05:59, skipping insertion in model container [2022-11-21 17:05:59,230 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:05:59" (1/1) ... [2022-11-21 17:05:59,238 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:05:59,344 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:05:59,601 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_bddd7b5f-02ab-4002-88aa-7220fa1b48a6/sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c[1868,1881] [2022-11-21 17:06:00,124 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:06:00,146 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:06:00,160 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_bddd7b5f-02ab-4002-88aa-7220fa1b48a6/sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c[1868,1881] [2022-11-21 17:06:00,496 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:06:00,535 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:06:00,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:06:00 WrapperNode [2022-11-21 17:06:00,536 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:06:00,537 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:06:00,537 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:06:00,538 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:06:00,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:06:00" (1/1) ... [2022-11-21 17:06:00,634 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:06:00" (1/1) ... [2022-11-21 17:06:00,892 INFO L138 Inliner]: procedures = 99, calls = 2727, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8247 [2022-11-21 17:06:00,892 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:06:00,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:06:00,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:06:00,893 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:06:00,903 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:06:00" (1/1) ... [2022-11-21 17:06:00,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:06:00" (1/1) ... [2022-11-21 17:06:00,966 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:06:00" (1/1) ... [2022-11-21 17:06:00,966 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:06:00" (1/1) ... [2022-11-21 17:06:01,191 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:06:00" (1/1) ... [2022-11-21 17:06:01,233 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:06:00" (1/1) ... [2022-11-21 17:06:01,257 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:06:00" (1/1) ... [2022-11-21 17:06:01,276 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:06:00" (1/1) ... [2022-11-21 17:06:01,317 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:06:01,319 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:06:01,320 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:06:01,321 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:06:01,321 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:06:00" (1/1) ... [2022-11-21 17:06:01,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:06:01,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bddd7b5f-02ab-4002-88aa-7220fa1b48a6/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:06:01,366 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bddd7b5f-02ab-4002-88aa-7220fa1b48a6/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:06:01,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bddd7b5f-02ab-4002-88aa-7220fa1b48a6/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:06:01,416 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-11-21 17:06:01,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-11-21 17:06:01,416 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-11-21 17:06:01,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-11-21 17:06:01,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 17:06:01,418 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-11-21 17:06:01,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-11-21 17:06:01,419 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-11-21 17:06:01,419 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-11-21 17:06:01,419 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-11-21 17:06:01,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-11-21 17:06:01,419 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-11-21 17:06:01,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-11-21 17:06:01,420 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-11-21 17:06:01,420 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-11-21 17:06:01,420 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-11-21 17:06:01,420 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-11-21 17:06:01,420 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-11-21 17:06:01,421 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-11-21 17:06:01,421 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-11-21 17:06:01,421 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-11-21 17:06:01,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 17:06:01,422 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-11-21 17:06:01,422 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-11-21 17:06:01,422 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-11-21 17:06:01,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-11-21 17:06:01,422 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-11-21 17:06:01,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-11-21 17:06:01,423 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-11-21 17:06:01,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-11-21 17:06:01,423 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-11-21 17:06:01,423 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-11-21 17:06:01,423 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-11-21 17:06:01,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-11-21 17:06:01,424 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-11-21 17:06:01,425 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-11-21 17:06:01,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 17:06:01,425 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-11-21 17:06:01,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-11-21 17:06:01,425 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-11-21 17:06:01,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-11-21 17:06:01,425 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-11-21 17:06:01,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-11-21 17:06:01,426 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-11-21 17:06:01,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-11-21 17:06:01,426 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-11-21 17:06:01,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-11-21 17:06:01,426 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-11-21 17:06:01,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-11-21 17:06:01,427 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-11-21 17:06:01,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-11-21 17:06:01,427 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-11-21 17:06:01,427 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-11-21 17:06:01,427 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-11-21 17:06:01,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-11-21 17:06:01,427 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-11-21 17:06:01,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-11-21 17:06:01,428 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-11-21 17:06:01,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-11-21 17:06:01,428 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-11-21 17:06:01,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-11-21 17:06:01,428 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-11-21 17:06:01,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-11-21 17:06:01,429 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-21 17:06:01,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-21 17:06:01,429 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-11-21 17:06:01,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-11-21 17:06:01,429 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-11-21 17:06:01,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-11-21 17:06:01,429 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-11-21 17:06:01,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-11-21 17:06:01,430 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-11-21 17:06:01,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-11-21 17:06:01,430 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-11-21 17:06:01,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-11-21 17:06:01,430 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-11-21 17:06:01,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-11-21 17:06:01,430 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-11-21 17:06:01,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-11-21 17:06:01,431 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-11-21 17:06:01,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-11-21 17:06:01,431 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2022-11-21 17:06:01,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2022-11-21 17:06:01,431 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-11-21 17:06:01,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-11-21 17:06:01,432 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-11-21 17:06:01,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-11-21 17:06:01,432 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-11-21 17:06:01,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-11-21 17:06:01,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 17:06:01,432 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-11-21 17:06:01,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-11-21 17:06:01,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:06:01,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:06:02,086 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:06:02,091 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:06:18,575 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:06:18,596 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:06:18,596 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-21 17:06:18,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:06:18 BoogieIcfgContainer [2022-11-21 17:06:18,602 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:06:18,605 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:06:18,605 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:06:18,608 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:06:18,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:05:59" (1/3) ... [2022-11-21 17:06:18,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@751ebdfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:06:18, skipping insertion in model container [2022-11-21 17:06:18,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:06:00" (2/3) ... [2022-11-21 17:06:18,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@751ebdfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:06:18, skipping insertion in model container [2022-11-21 17:06:18,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:06:18" (3/3) ... [2022-11-21 17:06:18,612 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.1.c [2022-11-21 17:06:18,632 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:06:18,633 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 17:06:18,723 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:06:18,730 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;@71677948, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:06:18,732 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 17:06:18,747 INFO L276 IsEmpty]: Start isEmpty. Operand has 2464 states, 2113 states have (on average 1.480832938949361) internal successors, (3129), 2137 states have internal predecessors, (3129), 305 states have call successors, (305), 44 states have call predecessors, (305), 44 states have return successors, (305), 295 states have call predecessors, (305), 305 states have call successors, (305) [2022-11-21 17:06:18,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-21 17:06:18,777 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:06:18,778 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] [2022-11-21 17:06:18,778 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:06:18,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:06:18,784 INFO L85 PathProgramCache]: Analyzing trace with hash 463341211, now seen corresponding path program 1 times [2022-11-21 17:06:18,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:06:18,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426620046] [2022-11-21 17:06:18,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:06:18,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms