./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 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_10e06bc2-2b9f-4bb4-acd4-d8c86b183be1/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10e06bc2-2b9f-4bb4-acd4-d8c86b183be1/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_10e06bc2-2b9f-4bb4-acd4-d8c86b183be1/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10e06bc2-2b9f-4bb4-acd4-d8c86b183be1/bin/uautomizer-ZsLfNo2U6R/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_10e06bc2-2b9f-4bb4-acd4-d8c86b183be1/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_10e06bc2-2b9f-4bb4-acd4-d8c86b183be1/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 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-38b53e6 [2022-11-25 16:45:38,886 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 16:45:38,890 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 16:45:38,918 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 16:45:38,919 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 16:45:38,920 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 16:45:38,922 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 16:45:38,924 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 16:45:38,926 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 16:45:38,929 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 16:45:38,933 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 16:45:38,935 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 16:45:38,935 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 16:45:38,937 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 16:45:38,938 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 16:45:38,939 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 16:45:38,941 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 16:45:38,942 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 16:45:38,944 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 16:45:38,946 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 16:45:38,948 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 16:45:38,951 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 16:45:38,952 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 16:45:38,955 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 16:45:38,962 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 16:45:38,971 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 16:45:38,971 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 16:45:38,973 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 16:45:38,975 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 16:45:38,976 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 16:45:38,979 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 16:45:38,981 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 16:45:38,982 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 16:45:38,984 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 16:45:38,986 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 16:45:38,986 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 16:45:38,987 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 16:45:38,987 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 16:45:38,988 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 16:45:38,989 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 16:45:38,990 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 16:45:38,991 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10e06bc2-2b9f-4bb4-acd4-d8c86b183be1/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 16:45:39,023 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 16:45:39,023 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 16:45:39,024 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 16:45:39,024 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 16:45:39,025 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 16:45:39,025 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 16:45:39,026 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 16:45:39,026 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 16:45:39,027 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 16:45:39,027 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 16:45:39,027 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 16:45:39,028 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 16:45:39,028 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 16:45:39,028 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 16:45:39,028 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 16:45:39,028 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 16:45:39,029 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 16:45:39,029 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 16:45:39,029 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 16:45:39,029 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 16:45:39,030 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 16:45:39,030 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 16:45:39,030 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 16:45:39,031 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 16:45:39,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:45:39,031 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 16:45:39,031 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 16:45:39,032 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 16:45:39,032 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 16:45:39,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 16:45:39,054 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 16:45:39,054 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 16:45:39,054 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 16:45:39,054 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 16:45:39,054 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_10e06bc2-2b9f-4bb4-acd4-d8c86b183be1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10e06bc2-2b9f-4bb4-acd4-d8c86b183be1/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6fb157ae499b257dadbdfdc38e5d4454494023bad31f4939a5eb0b429ddb260 [2022-11-25 16:45:39,443 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 16:45:39,489 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 16:45:39,493 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 16:45:39,494 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 16:45:39,495 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 16:45:39,496 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10e06bc2-2b9f-4bb4-acd4-d8c86b183be1/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c [2022-11-25 16:45:43,373 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 16:45:43,862 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 16:45:43,862 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10e06bc2-2b9f-4bb4-acd4-d8c86b183be1/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c [2022-11-25 16:45:43,891 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10e06bc2-2b9f-4bb4-acd4-d8c86b183be1/bin/uautomizer-ZsLfNo2U6R/data/fd92373d1/fcf199f47f6546c593a21596f2ca7b08/FLAG4c5891984 [2022-11-25 16:45:43,909 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10e06bc2-2b9f-4bb4-acd4-d8c86b183be1/bin/uautomizer-ZsLfNo2U6R/data/fd92373d1/fcf199f47f6546c593a21596f2ca7b08 [2022-11-25 16:45:43,912 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 16:45:43,914 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 16:45:43,916 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 16:45:43,916 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 16:45:43,921 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 16:45:43,922 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:45:43" (1/1) ... [2022-11-25 16:45:43,923 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2170d63a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:45:43, skipping insertion in model container [2022-11-25 16:45:43,924 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:45:43" (1/1) ... [2022-11-25 16:45:43,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 16:45:44,020 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 16:45:44,407 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_10e06bc2-2b9f-4bb4-acd4-d8c86b183be1/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c[1871,1884] [2022-11-25 16:45:45,043 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:45:45,067 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 16:45:45,084 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_10e06bc2-2b9f-4bb4-acd4-d8c86b183be1/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c[1871,1884] [2022-11-25 16:45:45,351 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:45:45,531 INFO L208 MainTranslator]: Completed translation [2022-11-25 16:45:45,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:45:45 WrapperNode [2022-11-25 16:45:45,532 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 16:45:45,534 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 16:45:45,534 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 16:45:45,534 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 16:45:45,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:45:45" (1/1) ... [2022-11-25 16:45:45,673 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:45:45" (1/1) ... [2022-11-25 16:45:45,958 INFO L138 Inliner]: procedures = 99, calls = 2816, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8376 [2022-11-25 16:45:45,958 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 16:45:45,959 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 16:45:45,959 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 16:45:45,959 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 16:45:45,979 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:45:45" (1/1) ... [2022-11-25 16:45:45,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:45:45" (1/1) ... [2022-11-25 16:45:46,046 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:45:45" (1/1) ... [2022-11-25 16:45:46,047 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:45:45" (1/1) ... [2022-11-25 16:45:46,309 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:45:45" (1/1) ... [2022-11-25 16:45:46,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:45:45" (1/1) ... [2022-11-25 16:45:46,373 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:45:45" (1/1) ... [2022-11-25 16:45:46,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:45:45" (1/1) ... [2022-11-25 16:45:46,522 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 16:45:46,525 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 16:45:46,525 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 16:45:46,525 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 16:45:46,527 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:45:45" (1/1) ... [2022-11-25 16:45:46,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:45:46,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10e06bc2-2b9f-4bb4-acd4-d8c86b183be1/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:45:46,569 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10e06bc2-2b9f-4bb4-acd4-d8c86b183be1/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 16:45:46,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10e06bc2-2b9f-4bb4-acd4-d8c86b183be1/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 16:45:46,637 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-11-25 16:45:46,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-11-25 16:45:46,638 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-11-25 16:45:46,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-11-25 16:45:46,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 16:45:46,639 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-11-25 16:45:46,639 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-11-25 16:45:46,639 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-11-25 16:45:46,640 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-11-25 16:45:46,640 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-11-25 16:45:46,640 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-11-25 16:45:46,640 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-11-25 16:45:46,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-11-25 16:45:46,641 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-11-25 16:45:46,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-11-25 16:45:46,641 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-11-25 16:45:46,642 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-11-25 16:45:46,642 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-11-25 16:45:46,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-11-25 16:45:46,642 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-11-25 16:45:46,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-11-25 16:45:46,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 16:45:46,643 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-11-25 16:45:46,643 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-11-25 16:45:46,644 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-11-25 16:45:46,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-11-25 16:45:46,644 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-11-25 16:45:46,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-11-25 16:45:46,645 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-11-25 16:45:46,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-11-25 16:45:46,646 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-11-25 16:45:46,647 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-11-25 16:45:46,647 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-11-25 16:45:46,648 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-11-25 16:45:46,648 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-11-25 16:45:46,648 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-11-25 16:45:46,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 16:45:46,649 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-11-25 16:45:46,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-11-25 16:45:46,650 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-11-25 16:45:46,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-11-25 16:45:46,650 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-11-25 16:45:46,651 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-11-25 16:45:46,651 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-11-25 16:45:46,651 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-11-25 16:45:46,651 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-11-25 16:45:46,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-11-25 16:45:46,652 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-11-25 16:45:46,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-11-25 16:45:46,652 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-11-25 16:45:46,653 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-11-25 16:45:46,653 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-11-25 16:45:46,653 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-11-25 16:45:46,654 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-11-25 16:45:46,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-11-25 16:45:46,655 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-11-25 16:45:46,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-11-25 16:45:46,655 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-11-25 16:45:46,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-11-25 16:45:46,657 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-11-25 16:45:46,657 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-11-25 16:45:46,657 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-11-25 16:45:46,657 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-11-25 16:45:46,658 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-25 16:45:46,658 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-25 16:45:46,658 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-11-25 16:45:46,658 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-11-25 16:45:46,659 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-11-25 16:45:46,659 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-11-25 16:45:46,659 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-11-25 16:45:46,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-11-25 16:45:46,660 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-11-25 16:45:46,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-11-25 16:45:46,660 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-11-25 16:45:46,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-11-25 16:45:46,661 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-11-25 16:45:46,662 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-11-25 16:45:46,662 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-11-25 16:45:46,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-11-25 16:45:46,663 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-11-25 16:45:46,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-11-25 16:45:46,664 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2022-11-25 16:45:46,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2022-11-25 16:45:46,665 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-11-25 16:45:46,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-11-25 16:45:46,665 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-11-25 16:45:46,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-11-25 16:45:46,667 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-11-25 16:45:46,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-11-25 16:45:46,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 16:45:46,667 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-11-25 16:45:46,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-11-25 16:45:46,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 16:45:46,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 16:45:47,461 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 16:45:47,464 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 16:46:09,866 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 16:46:09,891 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 16:46:09,891 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-25 16:46:09,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:46:09 BoogieIcfgContainer [2022-11-25 16:46:09,897 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 16:46:09,900 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 16:46:09,900 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 16:46:09,904 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 16:46:09,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 04:45:43" (1/3) ... [2022-11-25 16:46:09,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62012618 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:46:09, skipping insertion in model container [2022-11-25 16:46:09,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:45:45" (2/3) ... [2022-11-25 16:46:09,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62012618 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:46:09, skipping insertion in model container [2022-11-25 16:46:09,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:46:09" (3/3) ... [2022-11-25 16:46:09,908 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.3-2.c [2022-11-25 16:46:09,932 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 16:46:09,932 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 16:46:10,042 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 16:46:10,050 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;@5f62e3a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 16:46:10,051 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 16:46:10,066 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) [2022-11-25 16:46:10,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-25 16:46:10,088 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:46:10,089 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 16:46:10,090 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:46:10,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:46:10,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1381223433, now seen corresponding path program 1 times [2022-11-25 16:46:10,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:46:10,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108201265] [2022-11-25 16:46:10,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:46:10,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms