./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.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_53704d0a-613f-40bd-a219-4b3a0f722d66/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53704d0a-613f-40bd-a219-4b3a0f722d66/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_53704d0a-613f-40bd-a219-4b3a0f722d66/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53704d0a-613f-40bd-a219-4b3a0f722d66/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53704d0a-613f-40bd-a219-4b3a0f722d66/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_53704d0a-613f-40bd-a219-4b3a0f722d66/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 0c11dfbc24d8e2936a0720b93d6e580e096b076c7149ef4cbc8369f1ef818941 --- 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 11:04:21,375 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 11:04:21,379 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 11:04:21,432 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 11:04:21,433 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 11:04:21,435 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 11:04:21,437 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 11:04:21,439 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 11:04:21,441 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 11:04:21,443 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 11:04:21,444 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 11:04:21,446 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 11:04:21,447 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 11:04:21,448 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 11:04:21,450 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 11:04:21,451 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 11:04:21,453 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 11:04:21,454 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 11:04:21,456 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 11:04:21,466 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 11:04:21,470 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 11:04:21,472 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 11:04:21,474 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 11:04:21,476 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 11:04:21,489 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 11:04:21,493 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 11:04:21,494 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 11:04:21,495 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 11:04:21,497 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 11:04:21,499 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 11:04:21,499 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 11:04:21,501 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 11:04:21,503 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 11:04:21,505 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 11:04:21,507 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 11:04:21,507 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 11:04:21,508 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 11:04:21,509 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 11:04:21,509 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 11:04:21,510 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 11:04:21,511 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 11:04:21,512 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53704d0a-613f-40bd-a219-4b3a0f722d66/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 11:04:21,584 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 11:04:21,585 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 11:04:21,586 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 11:04:21,586 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 11:04:21,587 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 11:04:21,587 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 11:04:21,588 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 11:04:21,588 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 11:04:21,589 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 11:04:21,589 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 11:04:21,590 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 11:04:21,591 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 11:04:21,591 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 11:04:21,591 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 11:04:21,591 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 11:04:21,592 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 11:04:21,592 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 11:04:21,592 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 11:04:21,592 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 11:04:21,614 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 11:04:21,614 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 11:04:21,615 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 11:04:21,615 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 11:04:21,615 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 11:04:21,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 11:04:21,616 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 11:04:21,616 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 11:04:21,616 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 11:04:21,616 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 11:04:21,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 11:04:21,617 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 11:04:21,617 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 11:04:21,618 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 11:04:21,618 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_53704d0a-613f-40bd-a219-4b3a0f722d66/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53704d0a-613f-40bd-a219-4b3a0f722d66/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c11dfbc24d8e2936a0720b93d6e580e096b076c7149ef4cbc8369f1ef818941 [2022-10-17 11:04:21,904 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 11:04:21,946 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 11:04:21,951 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 11:04:21,952 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 11:04:21,953 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 11:04:21,955 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53704d0a-613f-40bd-a219-4b3a0f722d66/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c [2022-10-17 11:04:22,031 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53704d0a-613f-40bd-a219-4b3a0f722d66/bin/uautomizer-J5u9QxTXDZ/data/38ef3ac87/91aeaf0cd12d4c548c34d6b8a33d5828/FLAG71d8177c9 [2022-10-17 11:04:22,870 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 11:04:22,871 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53704d0a-613f-40bd-a219-4b3a0f722d66/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c [2022-10-17 11:04:22,923 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53704d0a-613f-40bd-a219-4b3a0f722d66/bin/uautomizer-J5u9QxTXDZ/data/38ef3ac87/91aeaf0cd12d4c548c34d6b8a33d5828/FLAG71d8177c9 [2022-10-17 11:04:23,389 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53704d0a-613f-40bd-a219-4b3a0f722d66/bin/uautomizer-J5u9QxTXDZ/data/38ef3ac87/91aeaf0cd12d4c548c34d6b8a33d5828 [2022-10-17 11:04:23,391 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 11:04:23,393 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 11:04:23,394 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 11:04:23,394 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 11:04:23,399 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 11:04:23,400 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:04:23" (1/1) ... [2022-10-17 11:04:23,401 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c9be53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:23, skipping insertion in model container [2022-10-17 11:04:23,401 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:04:23" (1/1) ... [2022-10-17 11:04:23,410 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 11:04:23,537 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 11:04:23,820 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_53704d0a-613f-40bd-a219-4b3a0f722d66/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c[1870,1883] [2022-10-17 11:04:24,627 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:04:24,649 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 11:04:24,666 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_53704d0a-613f-40bd-a219-4b3a0f722d66/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c[1870,1883] [2022-10-17 11:04:25,035 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:04:25,122 INFO L208 MainTranslator]: Completed translation [2022-10-17 11:04:25,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:25 WrapperNode [2022-10-17 11:04:25,123 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 11:04:25,124 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 11:04:25,124 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 11:04:25,124 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 11:04:25,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:25" (1/1) ... [2022-10-17 11:04:25,241 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:25" (1/1) ... [2022-10-17 11:04:25,515 INFO L138 Inliner]: procedures = 99, calls = 2816, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8376 [2022-10-17 11:04:25,516 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 11:04:25,517 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 11:04:25,517 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 11:04:25,518 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 11:04:25,529 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:25" (1/1) ... [2022-10-17 11:04:25,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:25" (1/1) ... [2022-10-17 11:04:25,648 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:25" (1/1) ... [2022-10-17 11:04:25,649 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:25" (1/1) ... [2022-10-17 11:04:25,918 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:25" (1/1) ... [2022-10-17 11:04:25,969 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:25" (1/1) ... [2022-10-17 11:04:25,989 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:25" (1/1) ... [2022-10-17 11:04:26,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:25" (1/1) ... [2022-10-17 11:04:26,046 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 11:04:26,047 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 11:04:26,048 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 11:04:26,048 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 11:04:26,049 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:25" (1/1) ... [2022-10-17 11:04:26,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 11:04:26,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53704d0a-613f-40bd-a219-4b3a0f722d66/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:04:26,083 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53704d0a-613f-40bd-a219-4b3a0f722d66/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 11:04:26,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53704d0a-613f-40bd-a219-4b3a0f722d66/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 11:04:26,142 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-10-17 11:04:26,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-10-17 11:04:26,143 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-10-17 11:04:26,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-10-17 11:04:26,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 11:04:26,143 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-10-17 11:04:26,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-10-17 11:04:26,144 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-10-17 11:04:26,144 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-10-17 11:04:26,144 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-10-17 11:04:26,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-10-17 11:04:26,144 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-10-17 11:04:26,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-10-17 11:04:26,145 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-10-17 11:04:26,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-10-17 11:04:26,145 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-10-17 11:04:26,145 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-10-17 11:04:26,146 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-10-17 11:04:26,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-10-17 11:04:26,146 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-10-17 11:04:26,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-10-17 11:04:26,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 11:04:26,147 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-10-17 11:04:26,147 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-10-17 11:04:26,147 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-10-17 11:04:26,147 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-10-17 11:04:26,148 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-10-17 11:04:26,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-10-17 11:04:26,148 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-10-17 11:04:26,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-10-17 11:04:26,148 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-10-17 11:04:26,149 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-10-17 11:04:26,149 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-10-17 11:04:26,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-10-17 11:04:26,149 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-10-17 11:04:26,149 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-10-17 11:04:26,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 11:04:26,150 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-10-17 11:04:26,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-10-17 11:04:26,150 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-10-17 11:04:26,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-10-17 11:04:26,151 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-10-17 11:04:26,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-10-17 11:04:26,151 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-10-17 11:04:26,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-10-17 11:04:26,152 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-10-17 11:04:26,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-10-17 11:04:26,152 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-10-17 11:04:26,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-10-17 11:04:26,152 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-10-17 11:04:26,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-10-17 11:04:26,153 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-10-17 11:04:26,153 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-10-17 11:04:26,153 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-10-17 11:04:26,154 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-10-17 11:04:26,154 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-10-17 11:04:26,154 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-10-17 11:04:26,154 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-10-17 11:04:26,154 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-10-17 11:04:26,155 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-10-17 11:04:26,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-10-17 11:04:26,155 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-10-17 11:04:26,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-10-17 11:04:26,156 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-10-17 11:04:26,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-10-17 11:04:26,156 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-10-17 11:04:26,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-10-17 11:04:26,156 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-10-17 11:04:26,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-10-17 11:04:26,157 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-10-17 11:04:26,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-10-17 11:04:26,157 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-10-17 11:04:26,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-10-17 11:04:26,158 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-10-17 11:04:26,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-10-17 11:04:26,158 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-10-17 11:04:26,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-10-17 11:04:26,159 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-10-17 11:04:26,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-10-17 11:04:26,159 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-10-17 11:04:26,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-10-17 11:04:26,159 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2022-10-17 11:04:26,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2022-10-17 11:04:26,160 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-10-17 11:04:26,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-10-17 11:04:26,160 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-10-17 11:04:26,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-10-17 11:04:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-10-17 11:04:26,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-10-17 11:04:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 11:04:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-10-17 11:04:26,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-10-17 11:04:26,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 11:04:26,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 11:04:26,852 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 11:04:26,859 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 11:04:48,555 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 11:04:48,598 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 11:04:48,598 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-17 11:04:48,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:04:48 BoogieIcfgContainer [2022-10-17 11:04:48,606 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 11:04:48,609 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 11:04:48,610 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 11:04:48,614 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 11:04:48,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 11:04:23" (1/3) ... [2022-10-17 11:04:48,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66c38d40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:04:48, skipping insertion in model container [2022-10-17 11:04:48,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:04:25" (2/3) ... [2022-10-17 11:04:48,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66c38d40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:04:48, skipping insertion in model container [2022-10-17 11:04:48,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:04:48" (3/3) ... [2022-10-17 11:04:48,618 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.3-1.c [2022-10-17 11:04:48,642 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 11:04:48,642 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 11:04:48,774 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 11:04:48,782 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;@1b0221d8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 11:04:48,783 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 11:04:48,814 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 11:04:48,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-10-17 11:04:48,868 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:04:48,869 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 11:04:48,879 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:04:48,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:48,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1381223433, now seen corresponding path program 1 times [2022-10-17 11:04:48,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:04:48,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9324311] [2022-10-17 11:04:48,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:04:48,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms