./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 e04fb08f 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_42fb96f0-df0e-487e-9ccd-7610d268d165/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42fb96f0-df0e-487e-9ccd-7610d268d165/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_42fb96f0-df0e-487e-9ccd-7610d268d165/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42fb96f0-df0e-487e-9ccd-7610d268d165/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42fb96f0-df0e-487e-9ccd-7610d268d165/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_42fb96f0-df0e-487e-9ccd-7610d268d165/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 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-e04fb08 [2022-11-16 11:32:03,544 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:32:03,546 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:32:03,567 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:32:03,568 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:32:03,569 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:32:03,570 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:32:03,572 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:32:03,574 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:32:03,575 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:32:03,576 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:32:03,577 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:32:03,578 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:32:03,579 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:32:03,580 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:32:03,581 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:32:03,582 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:32:03,583 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:32:03,585 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:32:03,587 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:32:03,589 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:32:03,590 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:32:03,592 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:32:03,593 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:32:03,596 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:32:03,597 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:32:03,597 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:32:03,599 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:32:03,599 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:32:03,600 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:32:03,601 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:32:03,602 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:32:03,603 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:32:03,604 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:32:03,605 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:32:03,606 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:32:03,606 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:32:03,607 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:32:03,607 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:32:03,608 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:32:03,609 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:32:03,615 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42fb96f0-df0e-487e-9ccd-7610d268d165/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 11:32:03,663 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:32:03,663 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:32:03,664 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:32:03,664 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:32:03,665 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:32:03,665 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:32:03,666 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:32:03,666 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:32:03,666 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:32:03,666 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:32:03,667 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:32:03,667 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:32:03,667 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:32:03,667 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:32:03,668 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:32:03,668 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:32:03,668 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:32:03,668 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:32:03,669 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:32:03,669 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:32:03,669 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:32:03,669 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:32:03,670 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:32:03,670 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:32:03,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:32:03,670 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:32:03,671 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:32:03,671 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:32:03,671 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:32:03,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:32:03,672 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:32:03,672 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:32:03,672 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:32:03,672 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_42fb96f0-df0e-487e-9ccd-7610d268d165/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42fb96f0-df0e-487e-9ccd-7610d268d165/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 436e6e57c04bd43264564f478c3aa92ec3799e6c36d71ae9bac6692f2873338f [2022-11-16 11:32:03,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:32:04,004 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:32:04,008 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:32:04,009 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:32:04,010 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:32:04,011 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42fb96f0-df0e-487e-9ccd-7610d268d165/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c [2022-11-16 11:32:04,095 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42fb96f0-df0e-487e-9ccd-7610d268d165/bin/uautomizer-tPACEb0tL8/data/77004fa47/ea997fc47b784992b76e34877240a155/FLAGd638b70d2 [2022-11-16 11:32:04,903 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:32:04,911 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42fb96f0-df0e-487e-9ccd-7610d268d165/sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c [2022-11-16 11:32:04,949 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42fb96f0-df0e-487e-9ccd-7610d268d165/bin/uautomizer-tPACEb0tL8/data/77004fa47/ea997fc47b784992b76e34877240a155/FLAGd638b70d2 [2022-11-16 11:32:05,000 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42fb96f0-df0e-487e-9ccd-7610d268d165/bin/uautomizer-tPACEb0tL8/data/77004fa47/ea997fc47b784992b76e34877240a155 [2022-11-16 11:32:05,005 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:32:05,007 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:32:05,011 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:32:05,011 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:32:05,015 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:32:05,016 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:32:05" (1/1) ... [2022-11-16 11:32:05,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@519a9a4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:32:05, skipping insertion in model container [2022-11-16 11:32:05,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:32:05" (1/1) ... [2022-11-16 11:32:05,025 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:32:05,134 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:32:05,358 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_42fb96f0-df0e-487e-9ccd-7610d268d165/sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c[1868,1881] [2022-11-16 11:32:05,929 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:32:05,959 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:32:05,976 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_42fb96f0-df0e-487e-9ccd-7610d268d165/sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c[1868,1881] [2022-11-16 11:32:06,317 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:32:06,370 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:32:06,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:32:06 WrapperNode [2022-11-16 11:32:06,371 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:32:06,372 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:32:06,373 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:32:06,373 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:32:06,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:32:06" (1/1) ... [2022-11-16 11:32:06,454 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:32:06" (1/1) ... [2022-11-16 11:32:06,715 INFO L138 Inliner]: procedures = 99, calls = 2906, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8512 [2022-11-16 11:32:06,716 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:32:06,717 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:32:06,717 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:32:06,717 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:32:06,748 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:32:06" (1/1) ... [2022-11-16 11:32:06,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:32:06" (1/1) ... [2022-11-16 11:32:06,805 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:32:06" (1/1) ... [2022-11-16 11:32:06,806 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:32:06" (1/1) ... [2022-11-16 11:32:06,956 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:32:06" (1/1) ... [2022-11-16 11:32:06,994 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:32:06" (1/1) ... [2022-11-16 11:32:07,024 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:32:06" (1/1) ... [2022-11-16 11:32:07,101 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:32:06" (1/1) ... [2022-11-16 11:32:07,152 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:32:07,153 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:32:07,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:32:07,154 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:32:07,156 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:32:06" (1/1) ... [2022-11-16 11:32:07,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:32:07,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42fb96f0-df0e-487e-9ccd-7610d268d165/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:32:07,187 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42fb96f0-df0e-487e-9ccd-7610d268d165/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:32:07,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42fb96f0-df0e-487e-9ccd-7610d268d165/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:32:07,247 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-11-16 11:32:07,247 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-11-16 11:32:07,247 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-11-16 11:32:07,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-11-16 11:32:07,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:32:07,248 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-11-16 11:32:07,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-11-16 11:32:07,248 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-11-16 11:32:07,248 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-11-16 11:32:07,249 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-11-16 11:32:07,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-11-16 11:32:07,249 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-11-16 11:32:07,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-11-16 11:32:07,249 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-11-16 11:32:07,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-11-16 11:32:07,250 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-11-16 11:32:07,250 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-11-16 11:32:07,250 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-11-16 11:32:07,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-11-16 11:32:07,250 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-11-16 11:32:07,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-11-16 11:32:07,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:32:07,251 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-11-16 11:32:07,251 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-11-16 11:32:07,251 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-11-16 11:32:07,251 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-11-16 11:32:07,251 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-11-16 11:32:07,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-11-16 11:32:07,252 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-11-16 11:32:07,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-11-16 11:32:07,252 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-11-16 11:32:07,252 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-11-16 11:32:07,252 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-11-16 11:32:07,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-11-16 11:32:07,253 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-11-16 11:32:07,253 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-11-16 11:32:07,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:32:07,254 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-11-16 11:32:07,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-11-16 11:32:07,254 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-11-16 11:32:07,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-11-16 11:32:07,254 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-11-16 11:32:07,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-11-16 11:32:07,255 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-11-16 11:32:07,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-11-16 11:32:07,255 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-11-16 11:32:07,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-11-16 11:32:07,255 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-11-16 11:32:07,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-11-16 11:32:07,256 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-11-16 11:32:07,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-11-16 11:32:07,256 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-11-16 11:32:07,257 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-11-16 11:32:07,257 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-11-16 11:32:07,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-11-16 11:32:07,258 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-11-16 11:32:07,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-11-16 11:32:07,259 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-11-16 11:32:07,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-11-16 11:32:07,259 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-11-16 11:32:07,260 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-11-16 11:32:07,260 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-11-16 11:32:07,260 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-11-16 11:32:07,260 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-16 11:32:07,260 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-16 11:32:07,260 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-11-16 11:32:07,260 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-11-16 11:32:07,261 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-11-16 11:32:07,261 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-11-16 11:32:07,261 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-11-16 11:32:07,261 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-11-16 11:32:07,262 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-11-16 11:32:07,262 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-11-16 11:32:07,262 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-11-16 11:32:07,262 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-11-16 11:32:07,263 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-11-16 11:32:07,263 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-11-16 11:32:07,263 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-11-16 11:32:07,263 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-11-16 11:32:07,263 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-11-16 11:32:07,263 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-11-16 11:32:07,263 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2022-11-16 11:32:07,264 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2022-11-16 11:32:07,264 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-11-16 11:32:07,264 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-11-16 11:32:07,264 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-11-16 11:32:07,264 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-11-16 11:32:07,264 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-11-16 11:32:07,265 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-11-16 11:32:07,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:32:07,265 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-11-16 11:32:07,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-11-16 11:32:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:32:07,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:32:07,950 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:32:07,954 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:32:32,568 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:32:32,605 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:32:32,605 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-16 11:32:32,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:32:32 BoogieIcfgContainer [2022-11-16 11:32:32,611 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:32:32,615 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:32:32,615 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:32:32,622 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:32:32,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:32:05" (1/3) ... [2022-11-16 11:32:32,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b9da5b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:32:32, skipping insertion in model container [2022-11-16 11:32:32,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:32:06" (2/3) ... [2022-11-16 11:32:32,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b9da5b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:32:32, skipping insertion in model container [2022-11-16 11:32:32,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:32:32" (3/3) ... [2022-11-16 11:32:32,628 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.4.c [2022-11-16 11:32:32,651 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:32:32,651 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:32:32,777 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:32:32,786 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;@419c6bf2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:32:32,787 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 11:32:32,803 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) [2022-11-16 11:32:32,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-16 11:32:32,839 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:32:32,840 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 11:32:32,841 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:32:32,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:32:32,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1151272851, now seen corresponding path program 1 times [2022-11-16 11:32:32,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:32:32,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415132735] [2022-11-16 11:32:32,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:32:32,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms