./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 38b53e6a 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_44731d2a-9780-4e0f-9a00-0aa2d306cedf/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44731d2a-9780-4e0f-9a00-0aa2d306cedf/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44731d2a-9780-4e0f-9a00-0aa2d306cedf/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44731d2a-9780-4e0f-9a00-0aa2d306cedf/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44731d2a-9780-4e0f-9a00-0aa2d306cedf/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44731d2a-9780-4e0f-9a00-0aa2d306cedf/bin/uautomizer-ZsLfNo2U6R --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-38b53e6 [2022-11-25 15:32:46,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:32:46,758 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:32:46,793 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:32:46,793 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:32:46,794 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:32:46,796 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:32:46,808 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:32:46,811 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:32:46,814 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:32:46,815 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:32:46,816 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:32:46,816 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:32:46,817 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:32:46,827 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:32:46,828 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:32:46,829 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:32:46,830 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:32:46,831 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:32:46,833 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:32:46,834 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:32:46,840 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:32:46,843 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:32:46,843 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:32:46,852 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:32:46,852 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:32:46,852 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:32:46,853 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:32:46,854 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:32:46,855 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:32:46,855 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:32:46,856 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:32:46,856 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:32:46,857 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:32:46,858 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:32:46,858 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:32:46,859 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:32:46,859 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:32:46,860 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:32:46,871 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:32:46,872 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:32:46,872 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44731d2a-9780-4e0f-9a00-0aa2d306cedf/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 15:32:46,910 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:32:46,910 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:32:46,911 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:32:46,911 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:32:46,912 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:32:46,912 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:32:46,913 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:32:46,913 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:32:46,913 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:32:46,913 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:32:46,914 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 15:32:46,915 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:32:46,915 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 15:32:46,915 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:32:46,915 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 15:32:46,915 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:32:46,916 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 15:32:46,916 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 15:32:46,916 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:32:46,916 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:32:46,916 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 15:32:46,917 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:32:46,917 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:32:46,917 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:32:46,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:32:46,918 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:32:46,918 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:32:46,918 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 15:32:46,918 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:32:46,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 15:32:46,919 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:32:46,919 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 15:32:46,919 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:32:46,919 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:32:46,920 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_44731d2a-9780-4e0f-9a00-0aa2d306cedf/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44731d2a-9780-4e0f-9a00-0aa2d306cedf/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3ec7c03a28dc415c6db5fadbfd8dcd491b1a493cd1bf88ef12d02131cd13437 [2022-11-25 15:32:47,197 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:32:47,217 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:32:47,220 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:32:47,221 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:32:47,222 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:32:47,223 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44731d2a-9780-4e0f-9a00-0aa2d306cedf/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c [2022-11-25 15:32:50,328 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:32:50,860 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:32:50,860 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44731d2a-9780-4e0f-9a00-0aa2d306cedf/sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c [2022-11-25 15:32:50,890 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44731d2a-9780-4e0f-9a00-0aa2d306cedf/bin/uautomizer-ZsLfNo2U6R/data/9d6dd3f34/d0e422be72054bb5ac6e93bf6ec9d9e4/FLAGe6ac58a6e [2022-11-25 15:32:50,910 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44731d2a-9780-4e0f-9a00-0aa2d306cedf/bin/uautomizer-ZsLfNo2U6R/data/9d6dd3f34/d0e422be72054bb5ac6e93bf6ec9d9e4 [2022-11-25 15:32:50,914 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:32:50,915 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:32:50,918 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:32:50,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:32:50,922 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:32:50,923 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:32:50" (1/1) ... [2022-11-25 15:32:50,924 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@743f0105 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:32:50, skipping insertion in model container [2022-11-25 15:32:50,924 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:32:50" (1/1) ... [2022-11-25 15:32:50,931 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:32:51,029 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:32:51,286 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_44731d2a-9780-4e0f-9a00-0aa2d306cedf/sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c[1868,1881] [2022-11-25 15:32:52,032 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:32:52,062 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:32:52,076 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_44731d2a-9780-4e0f-9a00-0aa2d306cedf/sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c[1868,1881] [2022-11-25 15:32:52,394 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:32:52,450 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:32:52,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:32:52 WrapperNode [2022-11-25 15:32:52,451 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:32:52,452 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:32:52,453 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:32:52,453 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:32:52,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:32:52" (1/1) ... [2022-11-25 15:32:52,556 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:32:52" (1/1) ... [2022-11-25 15:32:52,829 INFO L138 Inliner]: procedures = 99, calls = 2727, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8247 [2022-11-25 15:32:52,830 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:32:52,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:32:52,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:32:52,830 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:32:52,840 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:32:52" (1/1) ... [2022-11-25 15:32:52,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:32:52" (1/1) ... [2022-11-25 15:32:52,957 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:32:52" (1/1) ... [2022-11-25 15:32:52,957 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:32:52" (1/1) ... [2022-11-25 15:32:53,166 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:32:52" (1/1) ... [2022-11-25 15:32:53,202 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:32:52" (1/1) ... [2022-11-25 15:32:53,230 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:32:52" (1/1) ... [2022-11-25 15:32:53,249 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:32:52" (1/1) ... [2022-11-25 15:32:53,286 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:32:53,288 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:32:53,288 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:32:53,289 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:32:53,290 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:32:52" (1/1) ... [2022-11-25 15:32:53,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:32:53,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44731d2a-9780-4e0f-9a00-0aa2d306cedf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:32:53,326 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44731d2a-9780-4e0f-9a00-0aa2d306cedf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:32:53,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44731d2a-9780-4e0f-9a00-0aa2d306cedf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:32:53,378 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-11-25 15:32:53,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-11-25 15:32:53,379 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-11-25 15:32:53,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-11-25 15:32:53,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 15:32:53,379 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-11-25 15:32:53,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-11-25 15:32:53,379 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-11-25 15:32:53,380 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-11-25 15:32:53,380 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-11-25 15:32:53,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-11-25 15:32:53,380 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-11-25 15:32:53,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-11-25 15:32:53,380 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-11-25 15:32:53,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-11-25 15:32:53,380 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-11-25 15:32:53,381 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-11-25 15:32:53,381 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-11-25 15:32:53,381 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-11-25 15:32:53,381 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-11-25 15:32:53,381 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-11-25 15:32:53,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 15:32:53,381 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-11-25 15:32:53,381 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-11-25 15:32:53,382 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-11-25 15:32:53,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-11-25 15:32:53,382 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-11-25 15:32:53,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-11-25 15:32:53,382 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-11-25 15:32:53,383 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-11-25 15:32:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-11-25 15:32:53,383 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-11-25 15:32:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-11-25 15:32:53,384 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-11-25 15:32:53,385 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-11-25 15:32:53,385 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-11-25 15:32:53,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 15:32:53,385 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-11-25 15:32:53,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-11-25 15:32:53,385 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-11-25 15:32:53,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-11-25 15:32:53,386 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-11-25 15:32:53,386 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-11-25 15:32:53,386 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-11-25 15:32:53,386 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-11-25 15:32:53,386 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-11-25 15:32:53,386 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-11-25 15:32:53,387 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-11-25 15:32:53,387 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-11-25 15:32:53,387 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-11-25 15:32:53,387 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-11-25 15:32:53,387 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-11-25 15:32:53,387 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-11-25 15:32:53,388 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-11-25 15:32:53,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-11-25 15:32:53,388 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-11-25 15:32:53,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-11-25 15:32:53,388 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-11-25 15:32:53,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-11-25 15:32:53,389 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-11-25 15:32:53,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-11-25 15:32:53,389 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-11-25 15:32:53,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-11-25 15:32:53,389 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-25 15:32:53,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-25 15:32:53,390 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-11-25 15:32:53,390 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-11-25 15:32:53,390 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-11-25 15:32:53,390 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-11-25 15:32:53,390 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-11-25 15:32:53,390 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-11-25 15:32:53,390 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-11-25 15:32:53,390 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-11-25 15:32:53,391 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-11-25 15:32:53,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-11-25 15:32:53,391 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-11-25 15:32:53,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-11-25 15:32:53,391 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-11-25 15:32:53,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-11-25 15:32:53,392 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-11-25 15:32:53,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-11-25 15:32:53,392 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2022-11-25 15:32:53,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2022-11-25 15:32:53,392 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-11-25 15:32:53,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-11-25 15:32:53,393 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-11-25 15:32:53,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-11-25 15:32:53,393 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-11-25 15:32:53,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-11-25 15:32:53,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 15:32:53,394 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-11-25 15:32:53,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-11-25 15:32:53,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:32:53,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:32:54,132 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:32:54,134 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:33:09,844 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:33:09,874 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:33:09,875 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-25 15:33:09,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:33:09 BoogieIcfgContainer [2022-11-25 15:33:09,880 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:33:09,883 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:33:09,883 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:33:09,886 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:33:09,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:32:50" (1/3) ... [2022-11-25 15:33:09,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c788f3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:33:09, skipping insertion in model container [2022-11-25 15:33:09,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:32:52" (2/3) ... [2022-11-25 15:33:09,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c788f3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:33:09, skipping insertion in model container [2022-11-25 15:33:09,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:33:09" (3/3) ... [2022-11-25 15:33:09,893 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.1.c [2022-11-25 15:33:09,912 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:33:09,912 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 15:33:10,025 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 15:33:10,032 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;@23cf7fd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 15:33:10,034 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 15:33:10,050 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) [2022-11-25 15:33:10,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-25 15:33:10,086 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:33:10,087 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] [2022-11-25 15:33:10,088 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:33:10,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:33:10,093 INFO L85 PathProgramCache]: Analyzing trace with hash 463341211, now seen corresponding path program 1 times [2022-11-25 15:33:10,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:33:10,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114695406] [2022-11-25 15:33:10,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:33:10,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms