./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M1-1.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_da7e3cec-1024-4866-8bd1-a49c449ae670/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da7e3cec-1024-4866-8bd1-a49c449ae670/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_da7e3cec-1024-4866-8bd1-a49c449ae670/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da7e3cec-1024-4866-8bd1-a49c449ae670/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M1-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da7e3cec-1024-4866-8bd1-a49c449ae670/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_da7e3cec-1024-4866-8bd1-a49c449ae670/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 bfe38d632dc9d05bd2dc6fdd28950c1547024966bcab88b0922592f6fd40a86e --- 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 19:31:34,003 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:31:34,005 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:31:34,035 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:31:34,035 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:31:34,036 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:31:34,044 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:31:34,047 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:31:34,052 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:31:34,061 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:31:34,063 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:31:34,065 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:31:34,065 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:31:34,068 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:31:34,071 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:31:34,074 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:31:34,075 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:31:34,076 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:31:34,078 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:31:34,086 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:31:34,088 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:31:34,089 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:31:34,092 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:31:34,092 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:31:34,101 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:31:34,101 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:31:34,101 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:31:34,103 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:31:34,104 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:31:34,105 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:31:34,106 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:31:34,107 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:31:34,108 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:31:34,109 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:31:34,112 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:31:34,113 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:31:34,113 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:31:34,114 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:31:34,114 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:31:34,115 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:31:34,115 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:31:34,117 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da7e3cec-1024-4866-8bd1-a49c449ae670/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 19:31:34,157 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:31:34,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:31:34,158 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:31:34,158 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:31:34,159 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:31:34,159 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:31:34,160 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:31:34,160 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:31:34,160 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:31:34,161 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:31:34,162 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:31:34,162 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:31:34,162 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:31:34,162 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:31:34,163 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:31:34,163 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:31:34,163 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:31:34,163 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:31:34,163 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:31:34,164 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:31:34,164 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:31:34,164 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:31:34,164 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:31:34,165 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:31:34,165 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:31:34,165 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:31:34,166 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:31:34,167 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:31:34,167 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:31:34,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:31:34,167 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:31:34,168 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:31:34,168 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:31:34,168 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_da7e3cec-1024-4866-8bd1-a49c449ae670/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da7e3cec-1024-4866-8bd1-a49c449ae670/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfe38d632dc9d05bd2dc6fdd28950c1547024966bcab88b0922592f6fd40a86e [2022-11-18 19:31:34,499 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:31:34,524 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:31:34,527 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:31:34,528 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:31:34,529 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:31:34,531 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da7e3cec-1024-4866-8bd1-a49c449ae670/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M1-1.c [2022-11-18 19:31:34,611 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da7e3cec-1024-4866-8bd1-a49c449ae670/bin/uautomizer-TMbwUNV5ro/data/2a3d51dc2/542eadeba0c8491d9916049bbc3bfa1d/FLAG5da6f5763 [2022-11-18 19:31:35,337 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:31:35,338 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da7e3cec-1024-4866-8bd1-a49c449ae670/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M1-1.c [2022-11-18 19:31:35,359 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da7e3cec-1024-4866-8bd1-a49c449ae670/bin/uautomizer-TMbwUNV5ro/data/2a3d51dc2/542eadeba0c8491d9916049bbc3bfa1d/FLAG5da6f5763 [2022-11-18 19:31:35,520 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da7e3cec-1024-4866-8bd1-a49c449ae670/bin/uautomizer-TMbwUNV5ro/data/2a3d51dc2/542eadeba0c8491d9916049bbc3bfa1d [2022-11-18 19:31:35,523 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:31:35,524 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:31:35,537 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:31:35,537 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:31:35,541 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:31:35,541 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:31:35" (1/1) ... [2022-11-18 19:31:35,542 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@356f7d79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:31:35, skipping insertion in model container [2022-11-18 19:31:35,543 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:31:35" (1/1) ... [2022-11-18 19:31:35,552 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:31:35,635 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:31:35,821 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_da7e3cec-1024-4866-8bd1-a49c449ae670/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M1-1.c[2020,2033] [2022-11-18 19:31:36,208 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:31:36,238 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:31:36,253 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_da7e3cec-1024-4866-8bd1-a49c449ae670/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M1-1.c[2020,2033] [2022-11-18 19:31:36,529 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:31:36,553 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:31:36,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:31:36 WrapperNode [2022-11-18 19:31:36,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:31:36,555 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:31:36,555 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:31:36,555 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:31:36,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:31:36" (1/1) ... [2022-11-18 19:31:36,647 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:31:36" (1/1) ... [2022-11-18 19:31:36,827 INFO L138 Inliner]: procedures = 62, calls = 1929, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 4123 [2022-11-18 19:31:36,828 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:31:36,829 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:31:36,829 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:31:36,829 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:31:36,839 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:31:36" (1/1) ... [2022-11-18 19:31:36,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:31:36" (1/1) ... [2022-11-18 19:31:36,859 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:31:36" (1/1) ... [2022-11-18 19:31:36,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:31:36" (1/1) ... [2022-11-18 19:31:36,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:31:36" (1/1) ... [2022-11-18 19:31:36,981 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:31:36" (1/1) ... [2022-11-18 19:31:37,001 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:31:36" (1/1) ... [2022-11-18 19:31:37,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:31:36" (1/1) ... [2022-11-18 19:31:37,048 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:31:37,050 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:31:37,051 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:31:37,051 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:31:37,053 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:31:36" (1/1) ... [2022-11-18 19:31:37,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:31:37,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da7e3cec-1024-4866-8bd1-a49c449ae670/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:31:37,089 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da7e3cec-1024-4866-8bd1-a49c449ae670/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:31:37,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da7e3cec-1024-4866-8bd1-a49c449ae670/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:31:37,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:31:37,137 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-11-18 19:31:37,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-11-18 19:31:37,137 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-11-18 19:31:37,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-11-18 19:31:37,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:31:37,137 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-11-18 19:31:37,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-11-18 19:31:37,137 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-11-18 19:31:37,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-11-18 19:31:37,138 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_observer_obstacle_flag [2022-11-18 19:31:37,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_observer_obstacle_flag [2022-11-18 19:31:37,138 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-11-18 19:31:37,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-11-18 19:31:37,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 19:31:37,138 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-11-18 19:31:37,138 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-11-18 19:31:37,139 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-11-18 19:31:37,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-11-18 19:31:37,139 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-11-18 19:31:37,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-11-18 19:31:37,139 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-11-18 19:31:37,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-11-18 19:31:37,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:31:37,205 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2022-11-18 19:31:37,205 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2022-11-18 19:31:37,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:31:37,206 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-11-18 19:31:37,206 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-11-18 19:31:37,206 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-11-18 19:31:37,206 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-11-18 19:31:37,206 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-11-18 19:31:37,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-11-18 19:31:37,206 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-18 19:31:37,206 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-18 19:31:37,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:31:37,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:31:37,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:31:37,207 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-11-18 19:31:37,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-11-18 19:31:37,207 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-11-18 19:31:37,207 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-11-18 19:31:37,207 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-11-18 19:31:37,208 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-11-18 19:31:37,806 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:31:37,808 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:31:45,506 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:31:45,520 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:31:45,521 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 19:31:45,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:31:45 BoogieIcfgContainer [2022-11-18 19:31:45,524 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:31:45,526 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:31:45,526 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:31:45,530 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:31:45,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:31:35" (1/3) ... [2022-11-18 19:31:45,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19f91fc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:31:45, skipping insertion in model container [2022-11-18 19:31:45,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:31:36" (2/3) ... [2022-11-18 19:31:45,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19f91fc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:31:45, skipping insertion in model container [2022-11-18 19:31:45,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:31:45" (3/3) ... [2022-11-18 19:31:45,537 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.2.M1-1.c [2022-11-18 19:31:45,557 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:31:45,557 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 19:31:45,719 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:31:45,728 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;@64fbd7d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:31:45,729 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 19:31:45,739 INFO L276 IsEmpty]: Start isEmpty. Operand has 1290 states, 815 states have (on average 1.2748466257668711) internal successors, (1039), 847 states have internal predecessors, (1039), 455 states have call successors, (455), 18 states have call predecessors, (455), 18 states have return successors, (455), 453 states have call predecessors, (455), 455 states have call successors, (455) [2022-11-18 19:31:45,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 879 [2022-11-18 19:31:45,832 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:31:45,834 INFO L195 NwaCegarLoop]: trace histogram [111, 111, 111, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:31:45,834 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:31:45,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:31:45,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1711506897, now seen corresponding path program 1 times [2022-11-18 19:31:45,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:31:45,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568520200] [2022-11-18 19:31:45,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:31:45,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms