./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b 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_35c4f999-1f54-426c-bb26-c3bf7003d3ce/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c4f999-1f54-426c-bb26-c3bf7003d3ce/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c4f999-1f54-426c-bb26-c3bf7003d3ce/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c4f999-1f54-426c-bb26-c3bf7003d3ce/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c4f999-1f54-426c-bb26-c3bf7003d3ce/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c4f999-1f54-426c-bb26-c3bf7003d3ce/bin/uautomizer-ug76WZFUDN --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 436e6e57c04bd43264564f478c3aa92ec3799e6c36d71ae9bac6692f2873338f --- 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-6b4ec56 [2022-11-20 10:42:55,133 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:42:55,136 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:42:55,182 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:42:55,182 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:42:55,186 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:42:55,189 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:42:55,192 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:42:55,194 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:42:55,200 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:42:55,202 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:42:55,204 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:42:55,205 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:42:55,208 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:42:55,209 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:42:55,211 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:42:55,213 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:42:55,214 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:42:55,216 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:42:55,223 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:42:55,225 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:42:55,227 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:42:55,229 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:42:55,230 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:42:55,240 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:42:55,241 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:42:55,241 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:42:55,243 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:42:55,244 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:42:55,245 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:42:55,246 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:42:55,247 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:42:55,249 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:42:55,250 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:42:55,251 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:42:55,251 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:42:55,252 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:42:55,252 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:42:55,253 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:42:55,255 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:42:55,255 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:42:55,256 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c4f999-1f54-426c-bb26-c3bf7003d3ce/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 10:42:55,299 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:42:55,300 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:42:55,301 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:42:55,301 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:42:55,302 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:42:55,302 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:42:55,303 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:42:55,303 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:42:55,304 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:42:55,304 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:42:55,305 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:42:55,306 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:42:55,306 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:42:55,306 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:42:55,307 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:42:55,307 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:42:55,307 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:42:55,308 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:42:55,308 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:42:55,308 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:42:55,309 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:42:55,309 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:42:55,309 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:42:55,310 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:42:55,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:42:55,310 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:42:55,311 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:42:55,311 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:42:55,311 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:42:55,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:42:55,312 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:42:55,312 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:42:55,313 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:42:55,313 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_35c4f999-1f54-426c-bb26-c3bf7003d3ce/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c4f999-1f54-426c-bb26-c3bf7003d3ce/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 436e6e57c04bd43264564f478c3aa92ec3799e6c36d71ae9bac6692f2873338f [2022-11-20 10:42:55,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:42:55,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:42:55,697 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:42:55,698 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:42:55,699 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:42:55,700 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c4f999-1f54-426c-bb26-c3bf7003d3ce/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c [2022-11-20 10:42:58,780 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:42:59,205 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:42:59,206 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c4f999-1f54-426c-bb26-c3bf7003d3ce/sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c [2022-11-20 10:42:59,233 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c4f999-1f54-426c-bb26-c3bf7003d3ce/bin/uautomizer-ug76WZFUDN/data/6a2f1e0ed/96c51801f5a34e40b0c37d7fec35f1ad/FLAG922c8252a [2022-11-20 10:42:59,259 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c4f999-1f54-426c-bb26-c3bf7003d3ce/bin/uautomizer-ug76WZFUDN/data/6a2f1e0ed/96c51801f5a34e40b0c37d7fec35f1ad [2022-11-20 10:42:59,262 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:42:59,264 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:42:59,267 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:42:59,267 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:42:59,271 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:42:59,272 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:42:59" (1/1) ... [2022-11-20 10:42:59,273 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3da2535f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:59, skipping insertion in model container [2022-11-20 10:42:59,273 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:42:59" (1/1) ... [2022-11-20 10:42:59,282 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:42:59,392 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:42:59,578 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_35c4f999-1f54-426c-bb26-c3bf7003d3ce/sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c[1868,1881] [2022-11-20 10:43:00,387 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:43:00,420 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:43:00,435 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_35c4f999-1f54-426c-bb26-c3bf7003d3ce/sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c[1868,1881] [2022-11-20 10:43:00,715 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:43:00,762 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:43:00,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:43:00 WrapperNode [2022-11-20 10:43:00,763 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:43:00,764 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:43:00,764 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:43:00,764 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:43:00,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:43:00" (1/1) ... [2022-11-20 10:43:00,850 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:43:00" (1/1) ... [2022-11-20 10:43:01,076 INFO L138 Inliner]: procedures = 99, calls = 2906, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8512 [2022-11-20 10:43:01,077 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:43:01,078 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:43:01,078 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:43:01,078 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:43:01,089 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:43:00" (1/1) ... [2022-11-20 10:43:01,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:43:00" (1/1) ... [2022-11-20 10:43:01,215 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:43:00" (1/1) ... [2022-11-20 10:43:01,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:43:00" (1/1) ... [2022-11-20 10:43:01,348 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:43:00" (1/1) ... [2022-11-20 10:43:01,372 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:43:00" (1/1) ... [2022-11-20 10:43:01,387 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:43:00" (1/1) ... [2022-11-20 10:43:01,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:43:00" (1/1) ... [2022-11-20 10:43:01,442 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:43:01,443 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:43:01,443 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:43:01,443 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:43:01,444 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:43:00" (1/1) ... [2022-11-20 10:43:01,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:43:01,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c4f999-1f54-426c-bb26-c3bf7003d3ce/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:43:01,496 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c4f999-1f54-426c-bb26-c3bf7003d3ce/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:43:01,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c4f999-1f54-426c-bb26-c3bf7003d3ce/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:43:01,552 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-11-20 10:43:01,552 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-11-20 10:43:01,552 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-11-20 10:43:01,552 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-11-20 10:43:01,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 10:43:01,552 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-11-20 10:43:01,552 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-11-20 10:43:01,553 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-11-20 10:43:01,553 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-11-20 10:43:01,553 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-11-20 10:43:01,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-11-20 10:43:01,553 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-11-20 10:43:01,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-11-20 10:43:01,553 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-11-20 10:43:01,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-11-20 10:43:01,554 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-11-20 10:43:01,554 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-11-20 10:43:01,554 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-11-20 10:43:01,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-11-20 10:43:01,554 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-11-20 10:43:01,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-11-20 10:43:01,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 10:43:01,555 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-11-20 10:43:01,555 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-11-20 10:43:01,555 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-11-20 10:43:01,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-11-20 10:43:01,555 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-11-20 10:43:01,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-11-20 10:43:01,555 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-11-20 10:43:01,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-11-20 10:43:01,557 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-11-20 10:43:01,557 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-11-20 10:43:01,557 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-11-20 10:43:01,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-11-20 10:43:01,559 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-11-20 10:43:01,559 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-11-20 10:43:01,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:43:01,559 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-11-20 10:43:01,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-11-20 10:43:01,559 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-11-20 10:43:01,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-11-20 10:43:01,560 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-11-20 10:43:01,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-11-20 10:43:01,560 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-11-20 10:43:01,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-11-20 10:43:01,561 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-11-20 10:43:01,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-11-20 10:43:01,561 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-11-20 10:43:01,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-11-20 10:43:01,561 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-11-20 10:43:01,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-11-20 10:43:01,561 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-11-20 10:43:01,561 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-11-20 10:43:01,562 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-11-20 10:43:01,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-11-20 10:43:01,563 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-11-20 10:43:01,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-11-20 10:43:01,564 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-11-20 10:43:01,564 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-11-20 10:43:01,564 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-11-20 10:43:01,564 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-11-20 10:43:01,564 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-11-20 10:43:01,564 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-11-20 10:43:01,565 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-20 10:43:01,565 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-20 10:43:01,565 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-11-20 10:43:01,565 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-11-20 10:43:01,565 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-11-20 10:43:01,565 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-11-20 10:43:01,565 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-11-20 10:43:01,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-11-20 10:43:01,566 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-11-20 10:43:01,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-11-20 10:43:01,566 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-11-20 10:43:01,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-11-20 10:43:01,566 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-11-20 10:43:01,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-11-20 10:43:01,566 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-11-20 10:43:01,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-11-20 10:43:01,567 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-11-20 10:43:01,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-11-20 10:43:01,567 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2022-11-20 10:43:01,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2022-11-20 10:43:01,568 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-11-20 10:43:01,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-11-20 10:43:01,569 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-11-20 10:43:01,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-11-20 10:43:01,569 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-11-20 10:43:01,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-11-20 10:43:01,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:43:01,570 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-11-20 10:43:01,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-11-20 10:43:01,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:43:01,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:43:02,323 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:43:02,328 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:43:25,947 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:43:25,975 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:43:25,975 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-20 10:43:25,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:43:25 BoogieIcfgContainer [2022-11-20 10:43:25,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:43:25,983 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:43:25,983 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:43:25,987 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:43:25,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:42:59" (1/3) ... [2022-11-20 10:43:25,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d1eca5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:43:25, skipping insertion in model container [2022-11-20 10:43:25,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:43:00" (2/3) ... [2022-11-20 10:43:25,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d1eca5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:43:25, skipping insertion in model container [2022-11-20 10:43:25,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:43:25" (3/3) ... [2022-11-20 10:43:25,990 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.4.c [2022-11-20 10:43:26,012 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:43:26,012 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 10:43:26,110 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:43:26,117 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;@4a2a6814, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:43:26,118 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 10:43:26,130 INFO L276 IsEmpty]: Start isEmpty. Operand has 2469 states, 2115 states have (on average 1.4799054373522458) internal successors, (3130), 2139 states have internal predecessors, (3130), 308 states have call successors, (308), 44 states have call predecessors, (308), 44 states have return successors, (308), 298 states have call predecessors, (308), 308 states have call successors, (308) [2022-11-20 10:43:26,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-20 10:43:26,152 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:43:26,153 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] [2022-11-20 10:43:26,154 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:43:26,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:43:26,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1151272851, now seen corresponding path program 1 times [2022-11-20 10:43:26,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:43:26,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455729148] [2022-11-20 10:43:26,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:43:26,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms