./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_9f5d4d35-bae6-4798-b544-a0c43b7ad501/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5d4d35-bae6-4798-b544-a0c43b7ad501/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_9f5d4d35-bae6-4798-b544-a0c43b7ad501/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5d4d35-bae6-4798-b544-a0c43b7ad501/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5d4d35-bae6-4798-b544-a0c43b7ad501/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_9f5d4d35-bae6-4798-b544-a0c43b7ad501/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 436e6e57c04bd43264564f478c3aa92ec3799e6c36d71ae9bac6692f2873338f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:50:13,010 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:50:13,013 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:50:13,047 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:50:13,048 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:50:13,049 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:50:13,050 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:50:13,059 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:50:13,062 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:50:13,071 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:50:13,072 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:50:13,073 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:50:13,073 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:50:13,074 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:50:13,075 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:50:13,076 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:50:13,077 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:50:13,078 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:50:13,079 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:50:13,081 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:50:13,082 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:50:13,087 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:50:13,091 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:50:13,092 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:50:13,105 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:50:13,105 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:50:13,106 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:50:13,106 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:50:13,107 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:50:13,108 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:50:13,108 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:50:13,109 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:50:13,110 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:50:13,110 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:50:13,118 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:50:13,118 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:50:13,119 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:50:13,119 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:50:13,119 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:50:13,121 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:50:13,121 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:50:13,122 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5d4d35-bae6-4798-b544-a0c43b7ad501/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 20:50:13,145 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:50:13,145 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:50:13,146 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:50:13,146 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:50:13,147 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:50:13,147 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:50:13,147 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:50:13,148 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:50:13,148 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:50:13,148 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:50:13,148 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:50:13,149 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:50:13,149 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:50:13,149 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:50:13,149 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:50:13,149 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:50:13,149 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:50:13,150 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:50:13,150 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:50:13,150 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:50:13,150 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:50:13,150 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:50:13,151 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:50:13,151 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:50:13,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:50:13,151 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:50:13,151 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:50:13,152 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:50:13,152 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:50:13,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:50:13,152 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:50:13,152 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:50:13,152 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:50:13,153 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_9f5d4d35-bae6-4798-b544-a0c43b7ad501/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5d4d35-bae6-4798-b544-a0c43b7ad501/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 436e6e57c04bd43264564f478c3aa92ec3799e6c36d71ae9bac6692f2873338f [2022-11-18 20:50:13,430 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:50:13,469 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:50:13,473 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:50:13,475 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:50:13,476 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:50:13,477 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5d4d35-bae6-4798-b544-a0c43b7ad501/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c [2022-11-18 20:50:13,555 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5d4d35-bae6-4798-b544-a0c43b7ad501/bin/uautomizer-TMbwUNV5ro/data/61b8f877a/44a67b9ffd0340d2a1c1a8741b469945/FLAG0e9f166be [2022-11-18 20:50:14,287 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:50:14,287 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5d4d35-bae6-4798-b544-a0c43b7ad501/sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c [2022-11-18 20:50:14,308 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5d4d35-bae6-4798-b544-a0c43b7ad501/bin/uautomizer-TMbwUNV5ro/data/61b8f877a/44a67b9ffd0340d2a1c1a8741b469945/FLAG0e9f166be [2022-11-18 20:50:14,394 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5d4d35-bae6-4798-b544-a0c43b7ad501/bin/uautomizer-TMbwUNV5ro/data/61b8f877a/44a67b9ffd0340d2a1c1a8741b469945 [2022-11-18 20:50:14,398 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:50:14,402 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:50:14,403 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:50:14,404 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:50:14,407 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:50:14,408 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:50:14" (1/1) ... [2022-11-18 20:50:14,410 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13c15b3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:14, skipping insertion in model container [2022-11-18 20:50:14,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:50:14" (1/1) ... [2022-11-18 20:50:14,418 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:50:14,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:50:14,743 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_9f5d4d35-bae6-4798-b544-a0c43b7ad501/sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c[1868,1881] [2022-11-18 20:50:15,383 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:50:15,412 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:50:15,426 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_9f5d4d35-bae6-4798-b544-a0c43b7ad501/sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c[1868,1881] [2022-11-18 20:50:15,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:50:15,721 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:50:15,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:15 WrapperNode [2022-11-18 20:50:15,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:50:15,724 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:50:15,724 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:50:15,724 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:50:15,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:15" (1/1) ... [2022-11-18 20:50:15,819 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:15" (1/1) ... [2022-11-18 20:50:16,092 INFO L138 Inliner]: procedures = 99, calls = 2906, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8512 [2022-11-18 20:50:16,093 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:50:16,094 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:50:16,094 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:50:16,094 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:50:16,104 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:15" (1/1) ... [2022-11-18 20:50:16,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:15" (1/1) ... [2022-11-18 20:50:16,177 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:15" (1/1) ... [2022-11-18 20:50:16,177 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:15" (1/1) ... [2022-11-18 20:50:16,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:15" (1/1) ... [2022-11-18 20:50:16,398 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:15" (1/1) ... [2022-11-18 20:50:16,420 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:15" (1/1) ... [2022-11-18 20:50:16,446 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:15" (1/1) ... [2022-11-18 20:50:16,485 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:50:16,487 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:50:16,488 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:50:16,488 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:50:16,489 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:15" (1/1) ... [2022-11-18 20:50:16,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:50:16,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5d4d35-bae6-4798-b544-a0c43b7ad501/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:50:16,584 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5d4d35-bae6-4798-b544-a0c43b7ad501/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:50:16,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5d4d35-bae6-4798-b544-a0c43b7ad501/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:50:16,622 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-11-18 20:50:16,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-11-18 20:50:16,623 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-11-18 20:50:16,623 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-11-18 20:50:16,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:50:16,623 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-11-18 20:50:16,623 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-11-18 20:50:16,623 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-11-18 20:50:16,623 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-11-18 20:50:16,624 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-11-18 20:50:16,624 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-11-18 20:50:16,624 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-11-18 20:50:16,624 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-11-18 20:50:16,624 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-11-18 20:50:16,624 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-11-18 20:50:16,624 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-11-18 20:50:16,624 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-11-18 20:50:16,625 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-11-18 20:50:16,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-11-18 20:50:16,626 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-11-18 20:50:16,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-11-18 20:50:16,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:50:16,627 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-11-18 20:50:16,627 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-11-18 20:50:16,627 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-11-18 20:50:16,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-11-18 20:50:16,627 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-11-18 20:50:16,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-11-18 20:50:16,628 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-11-18 20:50:16,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-11-18 20:50:16,628 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-11-18 20:50:16,628 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-11-18 20:50:16,628 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-11-18 20:50:16,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-11-18 20:50:16,628 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-11-18 20:50:16,629 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-11-18 20:50:16,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:50:16,629 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-11-18 20:50:16,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-11-18 20:50:16,629 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-11-18 20:50:16,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-11-18 20:50:16,629 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-11-18 20:50:16,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-11-18 20:50:16,630 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-11-18 20:50:16,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-11-18 20:50:16,630 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-11-18 20:50:16,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-11-18 20:50:16,630 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-11-18 20:50:16,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-11-18 20:50:16,631 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-11-18 20:50:16,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-11-18 20:50:16,631 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-11-18 20:50:16,632 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-11-18 20:50:16,632 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-11-18 20:50:16,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-11-18 20:50:16,634 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-11-18 20:50:16,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-11-18 20:50:16,634 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-11-18 20:50:16,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-11-18 20:50:16,635 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-11-18 20:50:16,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-11-18 20:50:16,636 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-11-18 20:50:16,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-11-18 20:50:16,636 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-18 20:50:16,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-18 20:50:16,636 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-11-18 20:50:16,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-11-18 20:50:16,636 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-11-18 20:50:16,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-11-18 20:50:16,637 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-11-18 20:50:16,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-11-18 20:50:16,637 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-11-18 20:50:16,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-11-18 20:50:16,638 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-11-18 20:50:16,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-11-18 20:50:16,638 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-11-18 20:50:16,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-11-18 20:50:16,639 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-11-18 20:50:16,639 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-11-18 20:50:16,639 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-11-18 20:50:16,639 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-11-18 20:50:16,639 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2022-11-18 20:50:16,639 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2022-11-18 20:50:16,639 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-11-18 20:50:16,639 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-11-18 20:50:16,640 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-11-18 20:50:16,640 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-11-18 20:50:16,640 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-11-18 20:50:16,640 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-11-18 20:50:16,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:50:16,640 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-11-18 20:50:16,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-11-18 20:50:16,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:50:16,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:50:17,365 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:50:17,369 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:50:40,868 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:50:40,896 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:50:40,897 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-18 20:50:40,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:50:40 BoogieIcfgContainer [2022-11-18 20:50:40,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:50:40,905 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:50:40,905 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:50:40,910 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:50:40,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:50:14" (1/3) ... [2022-11-18 20:50:40,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d2d5c41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:50:40, skipping insertion in model container [2022-11-18 20:50:40,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:15" (2/3) ... [2022-11-18 20:50:40,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d2d5c41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:50:40, skipping insertion in model container [2022-11-18 20:50:40,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:50:40" (3/3) ... [2022-11-18 20:50:40,913 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.4.c [2022-11-18 20:50:40,937 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:50:40,937 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:50:41,070 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:50:41,082 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;@2dedc67b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:50:41,082 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 20:50:41,097 INFO L276 IsEmpty]: Start isEmpty. Operand has 2469 states, 2115 states have (on average 1.4799054373522458) internal successors, (3130), 2139 states have internal predecessors, (3130), 308 states have call successors, (308), 44 states have call predecessors, (308), 44 states have return successors, (308), 298 states have call predecessors, (308), 308 states have call successors, (308) [2022-11-18 20:50:41,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-18 20:50:41,134 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:50:41,135 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 20:50:41,135 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:50:41,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:50:41,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1151272851, now seen corresponding path program 1 times [2022-11-18 20:50:41,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:50:41,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066144231] [2022-11-18 20:50:41,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:50:41,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms