./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40b44540-d9d4-41f4-b15d-cec7bcf178b1/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40b44540-d9d4-41f4-b15d-cec7bcf178b1/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_40b44540-d9d4-41f4-b15d-cec7bcf178b1/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40b44540-d9d4-41f4-b15d-cec7bcf178b1/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40b44540-d9d4-41f4-b15d-cec7bcf178b1/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_40b44540-d9d4-41f4-b15d-cec7bcf178b1/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 a6fb157ae499b257dadbdfdc38e5d4454494023bad31f4939a5eb0b429ddb260 --- 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 13:44:30,225 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 13:44:30,227 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 13:44:30,274 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 13:44:30,275 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 13:44:30,279 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 13:44:30,282 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 13:44:30,285 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 13:44:30,287 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 13:44:30,293 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 13:44:30,294 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 13:44:30,295 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 13:44:30,295 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 13:44:30,296 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 13:44:30,298 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 13:44:30,299 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 13:44:30,300 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 13:44:30,300 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 13:44:30,302 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 13:44:30,312 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 13:44:30,315 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 13:44:30,317 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 13:44:30,319 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 13:44:30,320 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 13:44:30,331 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 13:44:30,331 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 13:44:30,332 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 13:44:30,333 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 13:44:30,334 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 13:44:30,335 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 13:44:30,335 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 13:44:30,336 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 13:44:30,338 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 13:44:30,340 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 13:44:30,341 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 13:44:30,342 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 13:44:30,343 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 13:44:30,343 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 13:44:30,343 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 13:44:30,345 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 13:44:30,345 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 13:44:30,346 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40b44540-d9d4-41f4-b15d-cec7bcf178b1/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-21 13:44:30,387 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 13:44:30,387 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 13:44:30,388 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 13:44:30,388 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 13:44:30,389 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 13:44:30,389 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 13:44:30,390 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 13:44:30,390 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 13:44:30,391 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 13:44:30,391 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 13:44:30,392 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 13:44:30,392 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 13:44:30,392 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 13:44:30,393 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 13:44:30,393 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 13:44:30,393 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 13:44:30,393 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 13:44:30,393 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 13:44:30,394 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 13:44:30,394 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 13:44:30,394 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 13:44:30,394 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 13:44:30,394 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 13:44:30,395 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 13:44:30,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:44:30,395 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 13:44:30,395 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 13:44:30,395 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 13:44:30,396 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 13:44:30,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 13:44:30,396 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 13:44:30,396 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 13:44:30,397 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 13:44:30,397 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_40b44540-d9d4-41f4-b15d-cec7bcf178b1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40b44540-d9d4-41f4-b15d-cec7bcf178b1/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6fb157ae499b257dadbdfdc38e5d4454494023bad31f4939a5eb0b429ddb260 [2022-11-21 13:44:30,699 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 13:44:30,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 13:44:30,737 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 13:44:30,738 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 13:44:30,739 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 13:44:30,740 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40b44540-d9d4-41f4-b15d-cec7bcf178b1/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c [2022-11-21 13:44:34,025 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 13:44:34,474 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 13:44:34,475 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40b44540-d9d4-41f4-b15d-cec7bcf178b1/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c [2022-11-21 13:44:34,511 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40b44540-d9d4-41f4-b15d-cec7bcf178b1/bin/uautomizer-vX5HgA9Q3a/data/9a8406b1b/8ee279e2771445179af5e2c3983a694a/FLAG5ea2e2347 [2022-11-21 13:44:34,530 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40b44540-d9d4-41f4-b15d-cec7bcf178b1/bin/uautomizer-vX5HgA9Q3a/data/9a8406b1b/8ee279e2771445179af5e2c3983a694a [2022-11-21 13:44:34,533 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 13:44:34,535 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 13:44:34,538 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 13:44:34,538 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 13:44:34,542 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 13:44:34,543 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:44:34" (1/1) ... [2022-11-21 13:44:34,544 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bbcc154 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:34, skipping insertion in model container [2022-11-21 13:44:34,544 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:44:34" (1/1) ... [2022-11-21 13:44:34,552 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 13:44:34,653 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 13:44:34,846 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_40b44540-d9d4-41f4-b15d-cec7bcf178b1/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c[1871,1884] [2022-11-21 13:44:35,503 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:44:35,532 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 13:44:35,550 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_40b44540-d9d4-41f4-b15d-cec7bcf178b1/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c[1871,1884] [2022-11-21 13:44:35,957 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:44:36,006 INFO L208 MainTranslator]: Completed translation [2022-11-21 13:44:36,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:36 WrapperNode [2022-11-21 13:44:36,007 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 13:44:36,008 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 13:44:36,008 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 13:44:36,008 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 13:44:36,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:36" (1/1) ... [2022-11-21 13:44:36,103 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:36" (1/1) ... [2022-11-21 13:44:36,294 INFO L138 Inliner]: procedures = 99, calls = 2816, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8376 [2022-11-21 13:44:36,294 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 13:44:36,295 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 13:44:36,295 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 13:44:36,295 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 13:44:36,304 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:36" (1/1) ... [2022-11-21 13:44:36,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:36" (1/1) ... [2022-11-21 13:44:36,333 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:36" (1/1) ... [2022-11-21 13:44:36,333 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:36" (1/1) ... [2022-11-21 13:44:36,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:36" (1/1) ... [2022-11-21 13:44:36,638 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:36" (1/1) ... [2022-11-21 13:44:36,662 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:36" (1/1) ... [2022-11-21 13:44:36,680 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:36" (1/1) ... [2022-11-21 13:44:36,719 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 13:44:36,720 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 13:44:36,721 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 13:44:36,721 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 13:44:36,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:36" (1/1) ... [2022-11-21 13:44:36,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:44:36,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40b44540-d9d4-41f4-b15d-cec7bcf178b1/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:44:36,758 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40b44540-d9d4-41f4-b15d-cec7bcf178b1/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 13:44:36,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40b44540-d9d4-41f4-b15d-cec7bcf178b1/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 13:44:36,865 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-11-21 13:44:36,865 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-11-21 13:44:36,866 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-11-21 13:44:36,866 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-11-21 13:44:36,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 13:44:36,866 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-11-21 13:44:36,866 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-11-21 13:44:36,866 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-11-21 13:44:36,867 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-11-21 13:44:36,867 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-11-21 13:44:36,867 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-11-21 13:44:36,867 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-11-21 13:44:36,867 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-11-21 13:44:36,867 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-11-21 13:44:36,868 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-11-21 13:44:36,868 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-11-21 13:44:36,868 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-11-21 13:44:36,868 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-11-21 13:44:36,868 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-11-21 13:44:36,868 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-11-21 13:44:36,868 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-11-21 13:44:36,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 13:44:36,869 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-11-21 13:44:36,869 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-11-21 13:44:36,869 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-11-21 13:44:36,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-11-21 13:44:36,869 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-11-21 13:44:36,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-11-21 13:44:36,870 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-11-21 13:44:36,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-11-21 13:44:36,871 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-11-21 13:44:36,871 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-11-21 13:44:36,871 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-11-21 13:44:36,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-11-21 13:44:36,872 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-11-21 13:44:36,872 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-11-21 13:44:36,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 13:44:36,873 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-11-21 13:44:36,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-11-21 13:44:36,873 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-11-21 13:44:36,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-11-21 13:44:36,873 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-11-21 13:44:36,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-11-21 13:44:36,874 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-11-21 13:44:36,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-11-21 13:44:36,874 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-11-21 13:44:36,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-11-21 13:44:36,874 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-11-21 13:44:36,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-11-21 13:44:36,875 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-11-21 13:44:36,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-11-21 13:44:36,875 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-11-21 13:44:36,875 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-11-21 13:44:36,876 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-11-21 13:44:36,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-11-21 13:44:36,877 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-11-21 13:44:36,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-11-21 13:44:36,877 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-11-21 13:44:36,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-11-21 13:44:36,877 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-11-21 13:44:36,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-11-21 13:44:36,878 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-11-21 13:44:36,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-11-21 13:44:36,878 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-21 13:44:36,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-21 13:44:36,878 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-11-21 13:44:36,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-11-21 13:44:36,879 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-11-21 13:44:36,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-11-21 13:44:36,879 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-11-21 13:44:36,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-11-21 13:44:36,879 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-11-21 13:44:36,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-11-21 13:44:36,880 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-11-21 13:44:36,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-11-21 13:44:36,881 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-11-21 13:44:36,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-11-21 13:44:36,881 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-11-21 13:44:36,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-11-21 13:44:36,881 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-11-21 13:44:36,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-11-21 13:44:36,882 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2022-11-21 13:44:36,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2022-11-21 13:44:36,883 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-11-21 13:44:36,883 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-11-21 13:44:36,883 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-11-21 13:44:36,884 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-11-21 13:44:36,884 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-11-21 13:44:36,884 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-11-21 13:44:36,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 13:44:36,884 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-11-21 13:44:36,884 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-11-21 13:44:36,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 13:44:36,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 13:44:37,562 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 13:44:37,567 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 13:44:57,224 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 13:44:57,246 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 13:44:57,246 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-21 13:44:57,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:44:57 BoogieIcfgContainer [2022-11-21 13:44:57,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 13:44:57,254 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 13:44:57,254 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 13:44:57,258 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 13:44:57,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:44:34" (1/3) ... [2022-11-21 13:44:57,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d6ae965 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:44:57, skipping insertion in model container [2022-11-21 13:44:57,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:36" (2/3) ... [2022-11-21 13:44:57,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d6ae965 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:44:57, skipping insertion in model container [2022-11-21 13:44:57,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:44:57" (3/3) ... [2022-11-21 13:44:57,262 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.3-2.c [2022-11-21 13:44:57,289 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 13:44:57,289 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 13:44:57,456 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 13:44:57,462 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;@1ee3d099, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 13:44:57,463 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 13:44:57,474 INFO L276 IsEmpty]: Start isEmpty. Operand has 2465 states, 2113 states have (on average 1.4803596781826787) internal successors, (3128), 2137 states have internal predecessors, (3128), 306 states have call successors, (306), 44 states have call predecessors, (306), 44 states have return successors, (306), 296 states have call predecessors, (306), 306 states have call successors, (306) [2022-11-21 13:44:57,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-21 13:44:57,495 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:44:57,496 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 13:44:57,498 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:44:57,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:57,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1381223433, now seen corresponding path program 1 times [2022-11-21 13:44:57,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:44:57,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895189153] [2022-11-21 13:44:57,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:57,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms