./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_516a4a7d-8fe1-4cf4-bd12-b4176a7c4db6/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516a4a7d-8fe1-4cf4-bd12-b4176a7c4db6/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516a4a7d-8fe1-4cf4-bd12-b4176a7c4db6/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516a4a7d-8fe1-4cf4-bd12-b4176a7c4db6/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516a4a7d-8fe1-4cf4-bd12-b4176a7c4db6/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516a4a7d-8fe1-4cf4-bd12-b4176a7c4db6/bin/uautomizer-ZsLfNo2U6R --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 f1e7a931f8678a52ab26f5a1b74bb59e33ef4ed9c03430a4d28342e1a824b13d --- 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-38b53e6 [2022-11-25 18:30:56,949 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:30:56,951 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:30:56,977 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:30:56,977 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:30:56,979 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:30:56,980 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:30:56,983 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:30:56,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:30:56,986 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:30:56,987 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:30:56,989 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:30:56,990 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:30:56,991 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:30:56,993 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:30:56,995 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:30:56,996 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:30:56,997 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:30:57,000 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:30:57,002 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:30:57,004 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:30:57,006 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:30:57,007 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:30:57,009 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:30:57,013 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:30:57,014 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:30:57,014 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:30:57,015 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:30:57,016 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:30:57,018 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:30:57,018 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:30:57,020 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:30:57,021 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:30:57,022 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:30:57,023 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:30:57,024 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:30:57,025 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:30:57,026 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:30:57,026 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:30:57,028 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:30:57,029 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:30:57,035 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516a4a7d-8fe1-4cf4-bd12-b4176a7c4db6/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 18:30:57,075 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:30:57,079 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:30:57,080 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:30:57,081 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:30:57,082 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:30:57,082 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:30:57,083 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:30:57,083 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:30:57,084 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:30:57,084 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:30:57,085 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:30:57,086 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:30:57,086 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:30:57,086 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:30:57,086 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:30:57,087 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:30:57,087 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:30:57,087 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:30:57,087 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:30:57,088 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:30:57,088 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:30:57,088 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:30:57,088 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:30:57,089 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:30:57,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:30:57,090 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:30:57,090 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:30:57,090 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:30:57,091 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:30:57,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:30:57,092 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:30:57,092 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:30:57,093 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:30:57,093 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:30:57,093 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_516a4a7d-8fe1-4cf4-bd12-b4176a7c4db6/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516a4a7d-8fe1-4cf4-bd12-b4176a7c4db6/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1e7a931f8678a52ab26f5a1b74bb59e33ef4ed9c03430a4d28342e1a824b13d [2022-11-25 18:30:57,443 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:30:57,480 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:30:57,483 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:30:57,485 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:30:57,485 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:30:57,487 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516a4a7d-8fe1-4cf4-bd12-b4176a7c4db6/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c [2022-11-25 18:31:01,035 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:31:01,488 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:31:01,488 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516a4a7d-8fe1-4cf4-bd12-b4176a7c4db6/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c [2022-11-25 18:31:01,519 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516a4a7d-8fe1-4cf4-bd12-b4176a7c4db6/bin/uautomizer-ZsLfNo2U6R/data/b2f9d674d/61912503b73642cc8cf2013bd8d5f4b0/FLAG615bacd99 [2022-11-25 18:31:01,538 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516a4a7d-8fe1-4cf4-bd12-b4176a7c4db6/bin/uautomizer-ZsLfNo2U6R/data/b2f9d674d/61912503b73642cc8cf2013bd8d5f4b0 [2022-11-25 18:31:01,541 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:31:01,543 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:31:01,545 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:31:01,545 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:31:01,551 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:31:01,552 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:31:01" (1/1) ... [2022-11-25 18:31:01,553 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2022c4c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:31:01, skipping insertion in model container [2022-11-25 18:31:01,554 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:31:01" (1/1) ... [2022-11-25 18:31:01,564 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:31:01,654 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:31:01,940 WARN L237 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_516a4a7d-8fe1-4cf4-bd12-b4176a7c4db6/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c[1870,1883] [2022-11-25 18:31:02,706 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:31:02,729 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:31:02,746 WARN L237 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_516a4a7d-8fe1-4cf4-bd12-b4176a7c4db6/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c[1870,1883] [2022-11-25 18:31:03,082 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:31:03,177 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:31:03,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:31:03 WrapperNode [2022-11-25 18:31:03,178 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:31:03,179 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:31:03,179 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:31:03,179 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:31:03,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:31:03" (1/1) ... [2022-11-25 18:31:03,288 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:31:03" (1/1) ... [2022-11-25 18:31:03,538 INFO L138 Inliner]: procedures = 99, calls = 2725, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 8221 [2022-11-25 18:31:03,538 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:31:03,539 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:31:03,539 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:31:03,539 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:31:03,549 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:31:03" (1/1) ... [2022-11-25 18:31:03,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:31:03" (1/1) ... [2022-11-25 18:31:03,618 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:31:03" (1/1) ... [2022-11-25 18:31:03,618 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:31:03" (1/1) ... [2022-11-25 18:31:03,868 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:31:03" (1/1) ... [2022-11-25 18:31:03,900 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:31:03" (1/1) ... [2022-11-25 18:31:03,939 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:31:03" (1/1) ... [2022-11-25 18:31:03,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:31:03" (1/1) ... [2022-11-25 18:31:03,995 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:31:03,996 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:31:03,996 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:31:03,997 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:31:03,997 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:31:03" (1/1) ... [2022-11-25 18:31:04,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:31:04,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516a4a7d-8fe1-4cf4-bd12-b4176a7c4db6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:31:04,037 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516a4a7d-8fe1-4cf4-bd12-b4176a7c4db6/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:31:04,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516a4a7d-8fe1-4cf4-bd12-b4176a7c4db6/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:31:04,169 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-11-25 18:31:04,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-11-25 18:31:04,170 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-11-25 18:31:04,171 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-11-25 18:31:04,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 18:31:04,172 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-11-25 18:31:04,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-11-25 18:31:04,172 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-11-25 18:31:04,172 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-11-25 18:31:04,173 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-11-25 18:31:04,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-11-25 18:31:04,173 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-11-25 18:31:04,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-11-25 18:31:04,173 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-11-25 18:31:04,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-11-25 18:31:04,174 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-11-25 18:31:04,174 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-11-25 18:31:04,174 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-11-25 18:31:04,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-11-25 18:31:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-11-25 18:31:04,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-11-25 18:31:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 18:31:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-11-25 18:31:04,176 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-11-25 18:31:04,176 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-11-25 18:31:04,176 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-11-25 18:31:04,176 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-11-25 18:31:04,176 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-11-25 18:31:04,177 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-11-25 18:31:04,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-11-25 18:31:04,178 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-11-25 18:31:04,178 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-11-25 18:31:04,179 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-11-25 18:31:04,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-11-25 18:31:04,180 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-11-25 18:31:04,180 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-11-25 18:31:04,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:31:04,181 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-11-25 18:31:04,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-11-25 18:31:04,181 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-11-25 18:31:04,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-11-25 18:31:04,182 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-11-25 18:31:04,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-11-25 18:31:04,182 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-11-25 18:31:04,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-11-25 18:31:04,183 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-11-25 18:31:04,183 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-11-25 18:31:04,183 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-11-25 18:31:04,183 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-11-25 18:31:04,183 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-11-25 18:31:04,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-11-25 18:31:04,184 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-11-25 18:31:04,184 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-11-25 18:31:04,185 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-11-25 18:31:04,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-11-25 18:31:04,186 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-11-25 18:31:04,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-11-25 18:31:04,186 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-11-25 18:31:04,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-11-25 18:31:04,186 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-11-25 18:31:04,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-11-25 18:31:04,187 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-11-25 18:31:04,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-11-25 18:31:04,187 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-25 18:31:04,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-25 18:31:04,188 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-11-25 18:31:04,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-11-25 18:31:04,188 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-11-25 18:31:04,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-11-25 18:31:04,188 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-11-25 18:31:04,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-11-25 18:31:04,189 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-11-25 18:31:04,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-11-25 18:31:04,189 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-11-25 18:31:04,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-11-25 18:31:04,190 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-11-25 18:31:04,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-11-25 18:31:04,190 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-11-25 18:31:04,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-11-25 18:31:04,191 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-11-25 18:31:04,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-11-25 18:31:04,192 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2022-11-25 18:31:04,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2022-11-25 18:31:04,192 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-11-25 18:31:04,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-11-25 18:31:04,193 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-11-25 18:31:04,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-11-25 18:31:04,194 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-11-25 18:31:04,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-11-25 18:31:04,194 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2022-11-25 18:31:04,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2022-11-25 18:31:04,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:31:04,195 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-11-25 18:31:04,195 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-11-25 18:31:04,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:31:04,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:31:04,980 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:31:04,986 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:31:22,455 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:31:22,480 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:31:22,481 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-25 18:31:22,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:31:22 BoogieIcfgContainer [2022-11-25 18:31:22,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:31:22,490 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:31:22,490 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:31:22,494 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:31:22,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:31:01" (1/3) ... [2022-11-25 18:31:22,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c6c9c2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:31:22, skipping insertion in model container [2022-11-25 18:31:22,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:31:03" (2/3) ... [2022-11-25 18:31:22,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c6c9c2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:31:22, skipping insertion in model container [2022-11-25 18:31:22,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:31:22" (3/3) ... [2022-11-25 18:31:22,498 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.2-2.c [2022-11-25 18:31:22,523 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:31:22,523 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 18:31:22,636 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:31:22,644 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;@331f4b01, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:31:22,645 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 18:31:22,659 INFO L276 IsEmpty]: Start isEmpty. Operand has 2460 states, 2109 states have (on average 1.4803224276908487) internal successors, (3122), 2133 states have internal predecessors, (3122), 304 states have call successors, (304), 45 states have call predecessors, (304), 45 states have return successors, (304), 294 states have call predecessors, (304), 304 states have call successors, (304) [2022-11-25 18:31:22,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-25 18:31:22,682 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:31:22,683 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] [2022-11-25 18:31:22,683 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:31:22,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:31:22,690 INFO L85 PathProgramCache]: Analyzing trace with hash -646402178, now seen corresponding path program 1 times [2022-11-25 18:31:22,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:31:22,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885870269] [2022-11-25 18:31:22,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:31:22,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms