./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_418a84a7-a814-45b3-b4cc-5aa8515dcebc/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418a84a7-a814-45b3-b4cc-5aa8515dcebc/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418a84a7-a814-45b3-b4cc-5aa8515dcebc/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418a84a7-a814-45b3-b4cc-5aa8515dcebc/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418a84a7-a814-45b3-b4cc-5aa8515dcebc/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418a84a7-a814-45b3-b4cc-5aa8515dcebc/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c3ec7c03a28dc415c6db5fadbfd8dcd491b1a493cd1bf88ef12d02131cd13437 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:15:32,772 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:15:32,775 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:15:32,822 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:15:32,823 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:15:32,827 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:15:32,830 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:15:32,833 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:15:32,836 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:15:32,842 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:15:32,844 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:15:32,847 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:15:32,847 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:15:32,850 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:15:32,852 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:15:32,855 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:15:32,857 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:15:32,858 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:15:32,860 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:15:32,868 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:15:32,870 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:15:32,872 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:15:32,875 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:15:32,877 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:15:32,887 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:15:32,887 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:15:32,888 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:15:32,890 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:15:32,891 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:15:32,892 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:15:32,892 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:15:32,894 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:15:32,896 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:15:32,897 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:15:32,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:15:32,900 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:15:32,901 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:15:32,902 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:15:32,902 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:15:32,903 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:15:32,904 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:15:32,905 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418a84a7-a814-45b3-b4cc-5aa8515dcebc/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 12:15:32,954 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:15:32,954 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:15:32,955 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:15:32,955 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:15:32,957 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:15:32,957 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:15:32,958 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:15:32,958 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:15:32,958 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:15:32,959 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:15:32,960 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:15:32,960 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:15:32,961 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:15:32,961 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:15:32,961 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:15:32,962 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:15:32,962 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:15:32,962 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:15:32,963 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:15:32,963 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:15:32,963 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:15:32,964 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:15:32,964 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:15:32,964 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:15:32,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:15:32,965 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:15:32,967 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:15:32,967 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:15:32,967 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:15:32,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:15:32,968 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:15:32,968 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:15:32,969 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:15:32,969 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_418a84a7-a814-45b3-b4cc-5aa8515dcebc/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418a84a7-a814-45b3-b4cc-5aa8515dcebc/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3ec7c03a28dc415c6db5fadbfd8dcd491b1a493cd1bf88ef12d02131cd13437 [2022-11-16 12:15:33,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:15:33,383 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:15:33,387 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:15:33,388 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:15:33,389 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:15:33,391 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418a84a7-a814-45b3-b4cc-5aa8515dcebc/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c [2022-11-16 12:15:33,472 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418a84a7-a814-45b3-b4cc-5aa8515dcebc/bin/uautomizer-tPACEb0tL8/data/37805cc2f/86a02e822f534522961ad3e18217fba5/FLAG6cb46fdf0 [2022-11-16 12:15:34,309 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:15:34,309 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418a84a7-a814-45b3-b4cc-5aa8515dcebc/sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c [2022-11-16 12:15:34,347 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418a84a7-a814-45b3-b4cc-5aa8515dcebc/bin/uautomizer-tPACEb0tL8/data/37805cc2f/86a02e822f534522961ad3e18217fba5/FLAG6cb46fdf0 [2022-11-16 12:15:34,411 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418a84a7-a814-45b3-b4cc-5aa8515dcebc/bin/uautomizer-tPACEb0tL8/data/37805cc2f/86a02e822f534522961ad3e18217fba5 [2022-11-16 12:15:34,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:15:34,416 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:15:34,419 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:15:34,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:15:34,423 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:15:34,424 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:15:34" (1/1) ... [2022-11-16 12:15:34,426 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cab43c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:34, skipping insertion in model container [2022-11-16 12:15:34,426 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:15:34" (1/1) ... [2022-11-16 12:15:34,434 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:15:34,550 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:15:34,832 WARN L229 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_418a84a7-a814-45b3-b4cc-5aa8515dcebc/sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c[1868,1881] [2022-11-16 12:15:35,450 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:15:35,487 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:15:35,500 WARN L229 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_418a84a7-a814-45b3-b4cc-5aa8515dcebc/sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c[1868,1881] [2022-11-16 12:15:35,805 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:15:35,869 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:15:35,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:35 WrapperNode [2022-11-16 12:15:35,870 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:15:35,872 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:15:35,872 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:15:35,872 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:15:35,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:35" (1/1) ... [2022-11-16 12:15:35,981 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:35" (1/1) ... [2022-11-16 12:15:36,225 INFO L138 Inliner]: procedures = 99, calls = 2727, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8247 [2022-11-16 12:15:36,252 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:15:36,253 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:15:36,253 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:15:36,253 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:15:36,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:35" (1/1) ... [2022-11-16 12:15:36,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:35" (1/1) ... [2022-11-16 12:15:36,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:35" (1/1) ... [2022-11-16 12:15:36,299 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:35" (1/1) ... [2022-11-16 12:15:36,487 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:35" (1/1) ... [2022-11-16 12:15:36,516 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:35" (1/1) ... [2022-11-16 12:15:36,535 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:35" (1/1) ... [2022-11-16 12:15:36,552 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:35" (1/1) ... [2022-11-16 12:15:36,600 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:15:36,601 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:15:36,602 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:15:36,602 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:15:36,603 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:35" (1/1) ... [2022-11-16 12:15:36,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:15:36,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418a84a7-a814-45b3-b4cc-5aa8515dcebc/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:15:36,637 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418a84a7-a814-45b3-b4cc-5aa8515dcebc/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:15:36,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418a84a7-a814-45b3-b4cc-5aa8515dcebc/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:15:36,691 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-11-16 12:15:36,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-11-16 12:15:36,692 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-11-16 12:15:36,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-11-16 12:15:36,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:15:36,692 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-11-16 12:15:36,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-11-16 12:15:36,693 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-11-16 12:15:36,693 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-11-16 12:15:36,693 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-11-16 12:15:36,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-11-16 12:15:36,694 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-11-16 12:15:36,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-11-16 12:15:36,694 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-11-16 12:15:36,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-11-16 12:15:36,695 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-11-16 12:15:36,695 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-11-16 12:15:36,695 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-11-16 12:15:36,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-11-16 12:15:36,695 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-11-16 12:15:36,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-11-16 12:15:36,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:15:36,696 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-11-16 12:15:36,696 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-11-16 12:15:36,696 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-11-16 12:15:36,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-11-16 12:15:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-11-16 12:15:36,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-11-16 12:15:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-11-16 12:15:36,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-11-16 12:15:36,698 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-11-16 12:15:36,698 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-11-16 12:15:36,698 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-11-16 12:15:36,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-11-16 12:15:36,698 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-11-16 12:15:36,699 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-11-16 12:15:36,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:15:36,700 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-11-16 12:15:36,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-11-16 12:15:36,700 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-11-16 12:15:36,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-11-16 12:15:36,701 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-11-16 12:15:36,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-11-16 12:15:36,701 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-11-16 12:15:36,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-11-16 12:15:36,702 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-11-16 12:15:36,702 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-11-16 12:15:36,702 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-11-16 12:15:36,702 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-11-16 12:15:36,702 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-11-16 12:15:36,703 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-11-16 12:15:36,703 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-11-16 12:15:36,704 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-11-16 12:15:36,704 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-11-16 12:15:36,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-11-16 12:15:36,706 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-11-16 12:15:36,706 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-11-16 12:15:36,707 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-11-16 12:15:36,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-11-16 12:15:36,707 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-11-16 12:15:36,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-11-16 12:15:36,708 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-11-16 12:15:36,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-11-16 12:15:36,708 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-16 12:15:36,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-16 12:15:36,709 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-11-16 12:15:36,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-11-16 12:15:36,709 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-11-16 12:15:36,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-11-16 12:15:36,709 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-11-16 12:15:36,710 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-11-16 12:15:36,711 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-11-16 12:15:36,711 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-11-16 12:15:36,711 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-11-16 12:15:36,711 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-11-16 12:15:36,711 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-11-16 12:15:36,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-11-16 12:15:36,712 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-11-16 12:15:36,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-11-16 12:15:36,712 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-11-16 12:15:36,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-11-16 12:15:36,713 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2022-11-16 12:15:36,713 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2022-11-16 12:15:36,713 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-11-16 12:15:36,713 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-11-16 12:15:36,713 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-11-16 12:15:36,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-11-16 12:15:36,714 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-11-16 12:15:36,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-11-16 12:15:36,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:15:36,715 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-11-16 12:15:36,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-11-16 12:15:36,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:15:36,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:15:37,506 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:15:37,514 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:15:54,323 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:15:54,353 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:15:54,353 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-16 12:15:54,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:15:54 BoogieIcfgContainer [2022-11-16 12:15:54,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:15:54,363 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:15:54,363 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:15:54,370 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:15:54,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:15:34" (1/3) ... [2022-11-16 12:15:54,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c768201 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:15:54, skipping insertion in model container [2022-11-16 12:15:54,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:15:35" (2/3) ... [2022-11-16 12:15:54,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c768201 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:15:54, skipping insertion in model container [2022-11-16 12:15:54,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:15:54" (3/3) ... [2022-11-16 12:15:54,379 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.1.c [2022-11-16 12:15:54,403 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:15:54,403 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:15:54,566 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:15:54,579 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;@4a713f05, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:15:54,580 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:15:54,596 INFO L276 IsEmpty]: Start isEmpty. Operand has 2464 states, 2113 states have (on average 1.480832938949361) internal successors, (3129), 2137 states have internal predecessors, (3129), 305 states have call successors, (305), 44 states have call predecessors, (305), 44 states have return successors, (305), 295 states have call predecessors, (305), 305 states have call successors, (305) [2022-11-16 12:15:54,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-16 12:15:54,639 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:15:54,640 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] [2022-11-16 12:15:54,641 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:15:54,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:15:54,651 INFO L85 PathProgramCache]: Analyzing trace with hash 463341211, now seen corresponding path program 1 times [2022-11-16 12:15:54,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:15:54,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437508672] [2022-11-16 12:15:54,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:15:54,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms