./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_be10168d-3787-418d-8eca-46460ff69dad/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be10168d-3787-418d-8eca-46460ff69dad/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be10168d-3787-418d-8eca-46460ff69dad/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be10168d-3787-418d-8eca-46460ff69dad/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be10168d-3787-418d-8eca-46460ff69dad/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be10168d-3787-418d-8eca-46460ff69dad/bin/uautomizer-TMbwUNV5ro --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 cdfe8cdf5ef6acb015ae980f200d66be6855e21e0a93c803bebabec43209e961 --- 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-8393723 [2022-11-18 20:09:51,585 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:09:51,597 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:09:51,616 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:09:51,620 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:09:51,622 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:09:51,624 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:09:51,628 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:09:51,630 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:09:51,631 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:09:51,632 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:09:51,636 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:09:51,636 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:09:51,641 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:09:51,643 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:09:51,645 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:09:51,647 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:09:51,653 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:09:51,654 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:09:51,656 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:09:51,662 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:09:51,664 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:09:51,665 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:09:51,667 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:09:51,671 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:09:51,677 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:09:51,677 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:09:51,678 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:09:51,680 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:09:51,681 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:09:51,682 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:09:51,682 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:09:51,684 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:09:51,686 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:09:51,688 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:09:51,689 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:09:51,690 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:09:51,690 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:09:51,691 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:09:51,691 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:09:51,692 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:09:51,693 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be10168d-3787-418d-8eca-46460ff69dad/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 20:09:51,719 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:09:51,720 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:09:51,720 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:09:51,720 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:09:51,721 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:09:51,721 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:09:51,722 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:09:51,722 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:09:51,723 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:09:51,723 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:09:51,723 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:09:51,723 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:09:51,724 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:09:51,724 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:09:51,724 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:09:51,724 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:09:51,725 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:09:51,725 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:09:51,725 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:09:51,725 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:09:51,725 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:09:51,726 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:09:51,726 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:09:51,726 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:09:51,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:09:51,727 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:09:51,727 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:09:51,727 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:09:51,727 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:09:51,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:09:51,728 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:09:51,728 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:09:51,728 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:09:51,728 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_be10168d-3787-418d-8eca-46460ff69dad/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be10168d-3787-418d-8eca-46460ff69dad/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cdfe8cdf5ef6acb015ae980f200d66be6855e21e0a93c803bebabec43209e961 [2022-11-18 20:09:52,019 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:09:52,053 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:09:52,056 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:09:52,058 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:09:52,059 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:09:52,060 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be10168d-3787-418d-8eca-46460ff69dad/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c [2022-11-18 20:09:52,142 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be10168d-3787-418d-8eca-46460ff69dad/bin/uautomizer-TMbwUNV5ro/data/2d86ed769/91d3774f54a34af1a2f5c5d39d886b72/FLAGa3e61e99c [2022-11-18 20:09:52,970 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:09:52,970 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be10168d-3787-418d-8eca-46460ff69dad/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c [2022-11-18 20:09:52,996 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be10168d-3787-418d-8eca-46460ff69dad/bin/uautomizer-TMbwUNV5ro/data/2d86ed769/91d3774f54a34af1a2f5c5d39d886b72/FLAGa3e61e99c [2022-11-18 20:09:53,093 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be10168d-3787-418d-8eca-46460ff69dad/bin/uautomizer-TMbwUNV5ro/data/2d86ed769/91d3774f54a34af1a2f5c5d39d886b72 [2022-11-18 20:09:53,096 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:09:53,097 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:09:53,102 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:09:53,102 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:09:53,105 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:09:53,106 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:09:53" (1/1) ... [2022-11-18 20:09:53,108 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2512d789 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:09:53, skipping insertion in model container [2022-11-18 20:09:53,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:09:53" (1/1) ... [2022-11-18 20:09:53,115 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:09:53,223 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:09:53,510 WARN L234 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_be10168d-3787-418d-8eca-46460ff69dad/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c[1871,1884] [2022-11-18 20:09:54,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:09:54,198 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:09:54,212 WARN L234 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_be10168d-3787-418d-8eca-46460ff69dad/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c[1871,1884] [2022-11-18 20:09:54,410 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:09:54,559 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:09:54,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:09:54 WrapperNode [2022-11-18 20:09:54,561 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:09:54,563 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:09:54,563 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:09:54,563 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:09:54,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:09:54" (1/1) ... [2022-11-18 20:09:54,692 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:09:54" (1/1) ... [2022-11-18 20:09:54,952 INFO L138 Inliner]: procedures = 99, calls = 2724, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8254 [2022-11-18 20:09:54,952 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:09:54,954 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:09:54,954 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:09:54,954 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:09:54,964 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:09:54" (1/1) ... [2022-11-18 20:09:54,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:09:54" (1/1) ... [2022-11-18 20:09:55,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:09:54" (1/1) ... [2022-11-18 20:09:55,036 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:09:54" (1/1) ... [2022-11-18 20:09:55,238 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:09:54" (1/1) ... [2022-11-18 20:09:55,279 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:09:54" (1/1) ... [2022-11-18 20:09:55,311 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:09:54" (1/1) ... [2022-11-18 20:09:55,331 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:09:54" (1/1) ... [2022-11-18 20:09:55,373 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:09:55,375 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:09:55,376 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:09:55,376 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:09:55,377 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:09:54" (1/1) ... [2022-11-18 20:09:55,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:09:55,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be10168d-3787-418d-8eca-46460ff69dad/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:09:55,416 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be10168d-3787-418d-8eca-46460ff69dad/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:09:55,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be10168d-3787-418d-8eca-46460ff69dad/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:09:55,471 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-11-18 20:09:55,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-11-18 20:09:55,471 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-11-18 20:09:55,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-11-18 20:09:55,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:09:55,472 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-11-18 20:09:55,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-11-18 20:09:55,472 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-11-18 20:09:55,472 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-11-18 20:09:55,472 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-11-18 20:09:55,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-11-18 20:09:55,473 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-11-18 20:09:55,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-11-18 20:09:55,473 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-11-18 20:09:55,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-11-18 20:09:55,474 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-11-18 20:09:55,474 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-11-18 20:09:55,474 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-11-18 20:09:55,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-11-18 20:09:55,474 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-11-18 20:09:55,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-11-18 20:09:55,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:09:55,475 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-11-18 20:09:55,475 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-11-18 20:09:55,475 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-11-18 20:09:55,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-11-18 20:09:55,476 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-11-18 20:09:55,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-11-18 20:09:55,476 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-11-18 20:09:55,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-11-18 20:09:55,476 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-11-18 20:09:55,476 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-11-18 20:09:55,477 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-11-18 20:09:55,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-11-18 20:09:55,477 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-11-18 20:09:55,477 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-11-18 20:09:55,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:09:55,477 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-11-18 20:09:55,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-11-18 20:09:55,478 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-11-18 20:09:55,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-11-18 20:09:55,479 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-11-18 20:09:55,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-11-18 20:09:55,479 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-11-18 20:09:55,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-11-18 20:09:55,479 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-11-18 20:09:55,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-11-18 20:09:55,480 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-11-18 20:09:55,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-11-18 20:09:55,480 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-11-18 20:09:55,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-11-18 20:09:55,480 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-11-18 20:09:55,481 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-11-18 20:09:55,481 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-11-18 20:09:55,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-11-18 20:09:55,483 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-11-18 20:09:55,483 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-11-18 20:09:55,483 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-11-18 20:09:55,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-11-18 20:09:55,484 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-11-18 20:09:55,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-11-18 20:09:55,484 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-11-18 20:09:55,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-11-18 20:09:55,485 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-18 20:09:55,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-18 20:09:55,485 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-11-18 20:09:55,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-11-18 20:09:55,485 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-11-18 20:09:55,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-11-18 20:09:55,486 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-11-18 20:09:55,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-11-18 20:09:55,487 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-11-18 20:09:55,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-11-18 20:09:55,488 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-11-18 20:09:55,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-11-18 20:09:55,488 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-11-18 20:09:55,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-11-18 20:09:55,488 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-11-18 20:09:55,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-11-18 20:09:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-11-18 20:09:55,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-11-18 20:09:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-11-18 20:09:55,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-11-18 20:09:55,489 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-11-18 20:09:55,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-11-18 20:09:55,490 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-11-18 20:09:55,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-11-18 20:09:55,490 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2022-11-18 20:09:55,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2022-11-18 20:09:55,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:09:55,490 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-11-18 20:09:55,491 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-11-18 20:09:55,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:09:55,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:09:56,176 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:09:56,180 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:10:12,107 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:10:12,137 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:10:12,137 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-18 20:10:12,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:10:12 BoogieIcfgContainer [2022-11-18 20:10:12,142 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:10:12,144 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:10:12,145 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:10:12,148 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:10:12,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:09:53" (1/3) ... [2022-11-18 20:10:12,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20bd6cff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:10:12, skipping insertion in model container [2022-11-18 20:10:12,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:09:54" (2/3) ... [2022-11-18 20:10:12,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20bd6cff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:10:12, skipping insertion in model container [2022-11-18 20:10:12,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:10:12" (3/3) ... [2022-11-18 20:10:12,152 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.2-1.c [2022-11-18 20:10:12,171 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:10:12,171 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:10:12,263 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:10:12,269 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;@771f3066, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:10:12,269 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 20:10:12,280 INFO L276 IsEmpty]: Start isEmpty. Operand has 2453 states, 2105 states have (on average 1.4807600950118764) internal successors, (3117), 2129 states have internal predecessors, (3117), 302 states have call successors, (302), 44 states have call predecessors, (302), 44 states have return successors, (302), 292 states have call predecessors, (302), 302 states have call successors, (302) [2022-11-18 20:10:12,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-18 20:10:12,299 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:10:12,300 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] [2022-11-18 20:10:12,300 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:10:12,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:12,311 INFO L85 PathProgramCache]: Analyzing trace with hash -134003326, now seen corresponding path program 1 times [2022-11-18 20:10:12,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:12,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959630828] [2022-11-18 20:10:12,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:12,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms