./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8892a398-4421-4d21-8279-fb9e3e8c7b3f/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8892a398-4421-4d21-8279-fb9e3e8c7b3f/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8892a398-4421-4d21-8279-fb9e3e8c7b3f/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8892a398-4421-4d21-8279-fb9e3e8c7b3f/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8892a398-4421-4d21-8279-fb9e3e8c7b3f/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8892a398-4421-4d21-8279-fb9e3e8c7b3f/bin/uautomizer-J5u9QxTXDZ --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 a6fb157ae499b257dadbdfdc38e5d4454494023bad31f4939a5eb0b429ddb260 --- 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-dbf71c6-m [2022-10-17 10:22:42,292 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:22:42,295 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:22:42,343 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:22:42,344 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:22:42,348 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:22:42,351 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:22:42,357 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:22:42,362 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:22:42,368 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:22:42,369 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:22:42,372 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:22:42,372 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:22:42,375 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:22:42,377 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:22:42,379 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:22:42,380 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:22:42,381 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:22:42,383 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:22:42,391 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:22:42,392 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:22:42,394 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:22:42,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:22:42,399 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:22:42,409 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:22:42,410 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:22:42,410 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:22:42,412 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:22:42,413 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:22:42,414 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:22:42,414 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:22:42,415 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:22:42,417 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:22:42,419 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:22:42,420 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:22:42,420 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:22:42,421 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:22:42,421 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:22:42,421 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:22:42,422 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:22:42,423 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:22:42,424 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8892a398-4421-4d21-8279-fb9e3e8c7b3f/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 10:22:42,465 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:22:42,466 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:22:42,467 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:22:42,467 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:22:42,468 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:22:42,468 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:22:42,469 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:22:42,469 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:22:42,469 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:22:42,469 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:22:42,471 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:22:42,471 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:22:42,471 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:22:42,471 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:22:42,472 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:22:42,473 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:22:42,473 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:22:42,473 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:22:42,474 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:22:42,475 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:22:42,475 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:22:42,481 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:22:42,481 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:22:42,482 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:22:42,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:22:42,483 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:22:42,484 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:22:42,484 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:22:42,485 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:22:42,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:22:42,487 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:22:42,487 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:22:42,488 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:22:42,488 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_8892a398-4421-4d21-8279-fb9e3e8c7b3f/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8892a398-4421-4d21-8279-fb9e3e8c7b3f/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6fb157ae499b257dadbdfdc38e5d4454494023bad31f4939a5eb0b429ddb260 [2022-10-17 10:22:42,779 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:22:42,806 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:22:42,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:22:42,809 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:22:42,810 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:22:42,812 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8892a398-4421-4d21-8279-fb9e3e8c7b3f/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c [2022-10-17 10:22:42,870 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8892a398-4421-4d21-8279-fb9e3e8c7b3f/bin/uautomizer-J5u9QxTXDZ/data/b07356eb3/6df6380069b3468ab37c7b5a995c4801/FLAG234ec752d [2022-10-17 10:22:43,529 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:22:43,529 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8892a398-4421-4d21-8279-fb9e3e8c7b3f/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c [2022-10-17 10:22:43,562 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8892a398-4421-4d21-8279-fb9e3e8c7b3f/bin/uautomizer-J5u9QxTXDZ/data/b07356eb3/6df6380069b3468ab37c7b5a995c4801/FLAG234ec752d [2022-10-17 10:22:43,665 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8892a398-4421-4d21-8279-fb9e3e8c7b3f/bin/uautomizer-J5u9QxTXDZ/data/b07356eb3/6df6380069b3468ab37c7b5a995c4801 [2022-10-17 10:22:43,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:22:43,672 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:22:43,673 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:22:43,674 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:22:43,676 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:22:43,676 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:22:43" (1/1) ... [2022-10-17 10:22:43,677 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23039e1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:22:43, skipping insertion in model container [2022-10-17 10:22:43,677 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:22:43" (1/1) ... [2022-10-17 10:22:43,685 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:22:43,801 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:22:44,088 WARN L230 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_8892a398-4421-4d21-8279-fb9e3e8c7b3f/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c[1871,1884] [2022-10-17 10:22:44,728 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:22:44,746 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:22:44,759 WARN L230 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_8892a398-4421-4d21-8279-fb9e3e8c7b3f/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c[1871,1884] [2022-10-17 10:22:44,997 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:22:45,039 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:22:45,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:22:45 WrapperNode [2022-10-17 10:22:45,040 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:22:45,041 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:22:45,041 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:22:45,041 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:22:45,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:22:45" (1/1) ... [2022-10-17 10:22:45,115 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:22:45" (1/1) ... [2022-10-17 10:22:45,489 INFO L138 Inliner]: procedures = 99, calls = 2816, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8376 [2022-10-17 10:22:45,489 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:22:45,490 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:22:45,491 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:22:45,491 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:22:45,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:22:45" (1/1) ... [2022-10-17 10:22:45,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:22:45" (1/1) ... [2022-10-17 10:22:45,573 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:22:45" (1/1) ... [2022-10-17 10:22:45,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:22:45" (1/1) ... [2022-10-17 10:22:45,778 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:22:45" (1/1) ... [2022-10-17 10:22:45,864 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:22:45" (1/1) ... [2022-10-17 10:22:45,886 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:22:45" (1/1) ... [2022-10-17 10:22:45,909 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:22:45" (1/1) ... [2022-10-17 10:22:45,940 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:22:45,942 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:22:45,943 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:22:45,943 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:22:45,944 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:22:45" (1/1) ... [2022-10-17 10:22:45,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:22:45,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8892a398-4421-4d21-8279-fb9e3e8c7b3f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:22:45,982 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8892a398-4421-4d21-8279-fb9e3e8c7b3f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:22:45,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8892a398-4421-4d21-8279-fb9e3e8c7b3f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:22:46,022 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-10-17 10:22:46,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-10-17 10:22:46,023 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-10-17 10:22:46,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-10-17 10:22:46,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:22:46,023 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-10-17 10:22:46,024 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-10-17 10:22:46,024 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-10-17 10:22:46,024 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-10-17 10:22:46,024 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-10-17 10:22:46,024 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-10-17 10:22:46,024 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-10-17 10:22:46,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-10-17 10:22:46,025 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-10-17 10:22:46,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-10-17 10:22:46,025 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-10-17 10:22:46,025 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-10-17 10:22:46,025 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-10-17 10:22:46,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-10-17 10:22:46,026 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-10-17 10:22:46,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-10-17 10:22:46,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:22:46,026 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-10-17 10:22:46,026 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-10-17 10:22:46,027 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-10-17 10:22:46,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-10-17 10:22:46,027 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-10-17 10:22:46,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-10-17 10:22:46,027 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-10-17 10:22:46,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-10-17 10:22:46,028 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-10-17 10:22:46,028 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-10-17 10:22:46,028 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-10-17 10:22:46,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-10-17 10:22:46,029 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-10-17 10:22:46,029 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-10-17 10:22:46,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:22:46,029 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-10-17 10:22:46,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-10-17 10:22:46,029 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-10-17 10:22:46,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-10-17 10:22:46,030 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-10-17 10:22:46,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-10-17 10:22:46,030 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-10-17 10:22:46,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-10-17 10:22:46,031 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-10-17 10:22:46,031 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-10-17 10:22:46,031 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-10-17 10:22:46,031 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-10-17 10:22:46,031 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-10-17 10:22:46,032 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-10-17 10:22:46,032 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-10-17 10:22:46,038 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-10-17 10:22:46,039 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-10-17 10:22:46,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-10-17 10:22:46,040 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-10-17 10:22:46,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-10-17 10:22:46,041 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-10-17 10:22:46,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-10-17 10:22:46,041 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-10-17 10:22:46,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-10-17 10:22:46,042 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-10-17 10:22:46,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-10-17 10:22:46,042 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-10-17 10:22:46,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-10-17 10:22:46,042 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-10-17 10:22:46,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-10-17 10:22:46,043 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-10-17 10:22:46,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-10-17 10:22:46,043 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-10-17 10:22:46,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-10-17 10:22:46,043 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-10-17 10:22:46,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-10-17 10:22:46,044 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-10-17 10:22:46,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-10-17 10:22:46,044 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-10-17 10:22:46,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-10-17 10:22:46,045 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-10-17 10:22:46,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-10-17 10:22:46,045 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-10-17 10:22:46,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-10-17 10:22:46,046 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2022-10-17 10:22:46,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2022-10-17 10:22:46,046 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-10-17 10:22:46,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-10-17 10:22:46,046 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-10-17 10:22:46,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-10-17 10:22:46,047 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-10-17 10:22:46,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-10-17 10:22:46,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:22:46,048 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-10-17 10:22:46,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-10-17 10:22:46,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:22:46,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:22:46,791 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:22:46,795 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:23:06,506 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:23:06,547 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:23:06,547 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-17 10:23:06,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:23:06 BoogieIcfgContainer [2022-10-17 10:23:06,554 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:23:06,557 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:23:06,558 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:23:06,561 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:23:06,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:22:43" (1/3) ... [2022-10-17 10:23:06,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aba6f7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:23:06, skipping insertion in model container [2022-10-17 10:23:06,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:22:45" (2/3) ... [2022-10-17 10:23:06,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aba6f7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:23:06, skipping insertion in model container [2022-10-17 10:23:06,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:23:06" (3/3) ... [2022-10-17 10:23:06,565 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.3-2.c [2022-10-17 10:23:06,583 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:23:06,583 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:23:06,707 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:23:06,717 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;@f59da91, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:23:06,718 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:23:06,732 INFO L276 IsEmpty]: Start isEmpty. Operand has 2465 states, 2113 states have (on average 1.4803596781826787) internal successors, (3128), 2137 states have internal predecessors, (3128), 306 states have call successors, (306), 44 states have call predecessors, (306), 44 states have return successors, (306), 296 states have call predecessors, (306), 306 states have call successors, (306) [2022-10-17 10:23:06,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-10-17 10:23:06,775 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:23:06,776 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] [2022-10-17 10:23:06,777 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:23:06,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:23:06,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1381223433, now seen corresponding path program 1 times [2022-10-17 10:23:06,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:23:06,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883364070] [2022-10-17 10:23:06,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:23:06,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms