./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 5e519f3a 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_97043c08-2844-48a5-9e67-5064d46fdb3e/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97043c08-2844-48a5-9e67-5064d46fdb3e/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97043c08-2844-48a5-9e67-5064d46fdb3e/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97043c08-2844-48a5-9e67-5064d46fdb3e/bin/uautomizer-Dbtcem3rbc/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_97043c08-2844-48a5-9e67-5064d46fdb3e/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97043c08-2844-48a5-9e67-5064d46fdb3e/bin/uautomizer-Dbtcem3rbc --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-5e519f3 [2022-11-02 20:11:58,868 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:11:58,872 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:11:58,918 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:11:58,919 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:11:58,921 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:11:58,923 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:11:58,926 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:11:58,928 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:11:58,930 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:11:58,931 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:11:58,933 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:11:58,934 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:11:58,935 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:11:58,937 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:11:58,939 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:11:58,940 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:11:58,942 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:11:58,944 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:11:58,947 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:11:58,949 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:11:58,955 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:11:58,960 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:11:58,962 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:11:58,967 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:11:58,975 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:11:58,975 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:11:58,977 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:11:58,977 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:11:58,980 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:11:58,980 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:11:58,981 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:11:58,983 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:11:58,985 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:11:58,988 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:11:58,989 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:11:58,991 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:11:58,991 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:11:58,991 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:11:58,993 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:11:58,994 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:11:58,995 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97043c08-2844-48a5-9e67-5064d46fdb3e/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-02 20:11:59,049 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:11:59,051 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:11:59,052 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:11:59,053 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:11:59,054 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:11:59,055 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:11:59,056 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:11:59,056 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:11:59,056 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:11:59,057 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:11:59,058 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:11:59,059 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:11:59,059 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:11:59,059 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:11:59,059 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:11:59,060 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:11:59,060 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:11:59,060 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:11:59,061 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:11:59,061 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:11:59,061 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:11:59,062 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:11:59,062 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:11:59,062 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:11:59,063 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:11:59,063 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:11:59,065 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:11:59,065 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:11:59,066 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:11:59,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:11:59,066 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:11:59,067 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:11:59,067 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:11:59,068 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_97043c08-2844-48a5-9e67-5064d46fdb3e/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97043c08-2844-48a5-9e67-5064d46fdb3e/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1e7a931f8678a52ab26f5a1b74bb59e33ef4ed9c03430a4d28342e1a824b13d [2022-11-02 20:11:59,463 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:11:59,513 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:11:59,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:11:59,518 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:11:59,519 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:11:59,521 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97043c08-2844-48a5-9e67-5064d46fdb3e/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c [2022-11-02 20:11:59,623 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97043c08-2844-48a5-9e67-5064d46fdb3e/bin/uautomizer-Dbtcem3rbc/data/e188cb578/948c9d2e603f4a338a291fa43530a4cc/FLAGbc5711277 [2022-11-02 20:12:00,603 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:12:00,605 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97043c08-2844-48a5-9e67-5064d46fdb3e/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c [2022-11-02 20:12:00,641 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97043c08-2844-48a5-9e67-5064d46fdb3e/bin/uautomizer-Dbtcem3rbc/data/e188cb578/948c9d2e603f4a338a291fa43530a4cc/FLAGbc5711277 [2022-11-02 20:12:01,112 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97043c08-2844-48a5-9e67-5064d46fdb3e/bin/uautomizer-Dbtcem3rbc/data/e188cb578/948c9d2e603f4a338a291fa43530a4cc [2022-11-02 20:12:01,116 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:12:01,120 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:12:01,124 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:12:01,124 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:12:01,130 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:12:01,131 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:12:01" (1/1) ... [2022-11-02 20:12:01,133 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@398080b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:12:01, skipping insertion in model container [2022-11-02 20:12:01,133 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:12:01" (1/1) ... [2022-11-02 20:12:01,142 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:12:01,264 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:12:01,554 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_97043c08-2844-48a5-9e67-5064d46fdb3e/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c[1870,1883] [2022-11-02 20:12:02,457 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:12:02,508 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:12:02,530 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_97043c08-2844-48a5-9e67-5064d46fdb3e/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c[1870,1883] [2022-11-02 20:12:02,908 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:12:02,967 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:12:02,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:12:02 WrapperNode [2022-11-02 20:12:02,968 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:12:02,969 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:12:02,970 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:12:02,970 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:12:02,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:12:02" (1/1) ... [2022-11-02 20:12:03,127 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:12:02" (1/1) ... [2022-11-02 20:12:03,401 INFO L138 Inliner]: procedures = 99, calls = 2725, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 8221 [2022-11-02 20:12:03,402 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:12:03,403 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:12:03,403 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:12:03,403 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:12:03,415 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:12:02" (1/1) ... [2022-11-02 20:12:03,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:12:02" (1/1) ... [2022-11-02 20:12:03,467 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:12:02" (1/1) ... [2022-11-02 20:12:03,482 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:12:02" (1/1) ... [2022-11-02 20:12:03,755 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:12:02" (1/1) ... [2022-11-02 20:12:03,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:12:02" (1/1) ... [2022-11-02 20:12:03,844 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:12:02" (1/1) ... [2022-11-02 20:12:03,866 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:12:02" (1/1) ... [2022-11-02 20:12:03,912 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:12:03,913 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:12:03,915 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:12:03,915 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:12:03,916 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:12:02" (1/1) ... [2022-11-02 20:12:03,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:12:03,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97043c08-2844-48a5-9e67-5064d46fdb3e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:12:03,972 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97043c08-2844-48a5-9e67-5064d46fdb3e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:12:03,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97043c08-2844-48a5-9e67-5064d46fdb3e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:12:04,029 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-11-02 20:12:04,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-11-02 20:12:04,030 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-11-02 20:12:04,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-11-02 20:12:04,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:12:04,031 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-11-02 20:12:04,031 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-11-02 20:12:04,031 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-11-02 20:12:04,031 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-11-02 20:12:04,032 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-11-02 20:12:04,032 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-11-02 20:12:04,032 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-11-02 20:12:04,032 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-11-02 20:12:04,032 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-11-02 20:12:04,033 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-11-02 20:12:04,033 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-11-02 20:12:04,033 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-11-02 20:12:04,033 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-11-02 20:12:04,033 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-11-02 20:12:04,034 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-11-02 20:12:04,034 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-11-02 20:12:04,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:12:04,035 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-11-02 20:12:04,035 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-11-02 20:12:04,035 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-11-02 20:12:04,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-11-02 20:12:04,035 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-11-02 20:12:04,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-11-02 20:12:04,036 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-11-02 20:12:04,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-11-02 20:12:04,036 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-11-02 20:12:04,036 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-11-02 20:12:04,037 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-11-02 20:12:04,037 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-11-02 20:12:04,037 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-11-02 20:12:04,037 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-11-02 20:12:04,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:12:04,038 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-11-02 20:12:04,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-11-02 20:12:04,038 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-11-02 20:12:04,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-11-02 20:12:04,039 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-11-02 20:12:04,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-11-02 20:12:04,039 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-11-02 20:12:04,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-11-02 20:12:04,040 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-11-02 20:12:04,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-11-02 20:12:04,040 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-11-02 20:12:04,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-11-02 20:12:04,041 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-11-02 20:12:04,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-11-02 20:12:04,041 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-11-02 20:12:04,042 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-11-02 20:12:04,042 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-11-02 20:12:04,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-11-02 20:12:04,044 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-11-02 20:12:04,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-11-02 20:12:04,044 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-11-02 20:12:04,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-11-02 20:12:04,045 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-11-02 20:12:04,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-11-02 20:12:04,045 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-11-02 20:12:04,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-11-02 20:12:04,046 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-02 20:12:04,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-02 20:12:04,047 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-11-02 20:12:04,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-11-02 20:12:04,047 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-11-02 20:12:04,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-11-02 20:12:04,047 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-11-02 20:12:04,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-11-02 20:12:04,048 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-11-02 20:12:04,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-11-02 20:12:04,049 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-11-02 20:12:04,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-11-02 20:12:04,050 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-11-02 20:12:04,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-11-02 20:12:04,050 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-11-02 20:12:04,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-11-02 20:12:04,050 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-11-02 20:12:04,051 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-11-02 20:12:04,051 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2022-11-02 20:12:04,051 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2022-11-02 20:12:04,051 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-11-02 20:12:04,051 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-11-02 20:12:04,051 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-11-02 20:12:04,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-11-02 20:12:04,052 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-11-02 20:12:04,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-11-02 20:12:04,053 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2022-11-02 20:12:04,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2022-11-02 20:12:04,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:12:04,054 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-11-02 20:12:04,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-11-02 20:12:04,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:12:04,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:12:04,912 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:12:04,916 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:12:23,294 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:12:23,350 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:12:23,351 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-02 20:12:23,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:12:23 BoogieIcfgContainer [2022-11-02 20:12:23,358 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:12:23,364 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:12:23,364 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:12:23,368 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:12:23,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:12:01" (1/3) ... [2022-11-02 20:12:23,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dc41e9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:12:23, skipping insertion in model container [2022-11-02 20:12:23,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:12:02" (2/3) ... [2022-11-02 20:12:23,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dc41e9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:12:23, skipping insertion in model container [2022-11-02 20:12:23,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:12:23" (3/3) ... [2022-11-02 20:12:23,374 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.2-2.c [2022-11-02 20:12:23,402 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:12:23,403 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:12:23,559 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:12:23,575 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;@457c9eb2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:12:23,578 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:12:23,593 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) [2022-11-02 20:12:23,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-02 20:12:23,631 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:12:23,633 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] [2022-11-02 20:12:23,634 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:12:23,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:12:23,644 INFO L85 PathProgramCache]: Analyzing trace with hash -646402178, now seen corresponding path program 1 times [2022-11-02 20:12:23,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:12:23,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576037739] [2022-11-02 20:12:23,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:12:23,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms