./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekcba_ctm.1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f8449-2035-41d3-9fdd-2a2c28545fe4/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f8449-2035-41d3-9fdd-2a2c28545fe4/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f8449-2035-41d3-9fdd-2a2c28545fe4/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f8449-2035-41d3-9fdd-2a2c28545fe4/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekcba_ctm.1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f8449-2035-41d3-9fdd-2a2c28545fe4/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f8449-2035-41d3-9fdd-2a2c28545fe4/bin/uautomizer-TMbwUNV5ro --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 687a1636a89f1fab4c90438b5af97b62d434d4fc2275ba6796fa2a6782584d1d --- 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-8393723 [2022-11-18 20:07:46,951 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:07:46,953 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:07:46,984 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:07:46,985 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:07:46,986 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:07:46,987 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:07:46,989 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:07:46,991 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:07:46,992 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:07:46,993 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:07:46,994 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:07:46,995 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:07:46,996 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:07:46,997 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:07:46,998 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:07:46,999 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:07:47,000 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:07:47,002 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:07:47,004 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:07:47,006 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:07:47,007 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:07:47,008 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:07:47,009 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:07:47,013 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:07:47,014 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:07:47,014 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:07:47,015 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:07:47,015 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:07:47,017 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:07:47,017 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:07:47,018 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:07:47,019 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:07:47,020 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:07:47,021 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:07:47,021 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:07:47,022 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:07:47,022 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:07:47,022 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:07:47,023 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:07:47,024 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:07:47,025 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f8449-2035-41d3-9fdd-2a2c28545fe4/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 20:07:47,051 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:07:47,051 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:07:47,052 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:07:47,052 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:07:47,052 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:07:47,053 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:07:47,053 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:07:47,054 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:07:47,054 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:07:47,054 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:07:47,054 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:07:47,054 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:07:47,055 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:07:47,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:07:47,055 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:07:47,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:07:47,055 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:07:47,056 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:07:47,056 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:07:47,056 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:07:47,056 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:07:47,056 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:07:47,057 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:07:47,057 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:07:47,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:07:47,057 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:07:47,057 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:07:47,058 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:07:47,058 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:07:47,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:07:47,058 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:07:47,058 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:07:47,058 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:07:47,059 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_580f8449-2035-41d3-9fdd-2a2c28545fe4/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f8449-2035-41d3-9fdd-2a2c28545fe4/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 687a1636a89f1fab4c90438b5af97b62d434d4fc2275ba6796fa2a6782584d1d [2022-11-18 20:07:47,314 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:07:47,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:07:47,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:07:47,347 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:07:47,348 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:07:47,349 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f8449-2035-41d3-9fdd-2a2c28545fe4/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/seq-mthreaded/rekcba_ctm.1.c [2022-11-18 20:07:47,420 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f8449-2035-41d3-9fdd-2a2c28545fe4/bin/uautomizer-TMbwUNV5ro/data/d51f29d30/ddee7072484f47558c36ee66f9718514/FLAG4f2bfc386 [2022-11-18 20:07:48,222 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:07:48,223 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f8449-2035-41d3-9fdd-2a2c28545fe4/sv-benchmarks/c/seq-mthreaded/rekcba_ctm.1.c [2022-11-18 20:07:48,278 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f8449-2035-41d3-9fdd-2a2c28545fe4/bin/uautomizer-TMbwUNV5ro/data/d51f29d30/ddee7072484f47558c36ee66f9718514/FLAG4f2bfc386 [2022-11-18 20:07:48,751 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f8449-2035-41d3-9fdd-2a2c28545fe4/bin/uautomizer-TMbwUNV5ro/data/d51f29d30/ddee7072484f47558c36ee66f9718514 [2022-11-18 20:07:48,754 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:07:48,757 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:07:48,761 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:07:48,761 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:07:48,765 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:07:48,765 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:07:48" (1/1) ... [2022-11-18 20:07:48,766 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6df57225 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:48, skipping insertion in model container [2022-11-18 20:07:48,766 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:07:48" (1/1) ... [2022-11-18 20:07:48,775 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:07:48,916 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:07:49,201 WARN L234 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_580f8449-2035-41d3-9fdd-2a2c28545fe4/sv-benchmarks/c/seq-mthreaded/rekcba_ctm.1.c[2213,2226] [2022-11-18 20:07:50,135 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:07:50,155 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:07:50,173 WARN L234 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_580f8449-2035-41d3-9fdd-2a2c28545fe4/sv-benchmarks/c/seq-mthreaded/rekcba_ctm.1.c[2213,2226] [2022-11-18 20:07:50,693 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:07:50,745 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:07:50,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:50 WrapperNode [2022-11-18 20:07:50,745 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:07:50,747 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:07:50,748 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:07:50,748 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:07:50,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:50" (1/1) ... [2022-11-18 20:07:50,981 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:50" (1/1) ... [2022-11-18 20:07:51,647 INFO L138 Inliner]: procedures = 101, calls = 6646, calls flagged for inlining = 38, calls inlined = 38, statements flattened = 21149 [2022-11-18 20:07:51,648 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:07:51,649 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:07:51,649 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:07:51,649 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:07:51,659 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:50" (1/1) ... [2022-11-18 20:07:51,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:50" (1/1) ... [2022-11-18 20:07:51,875 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:50" (1/1) ... [2022-11-18 20:07:51,876 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:50" (1/1) ... [2022-11-18 20:07:52,441 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:50" (1/1) ... [2022-11-18 20:07:52,513 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:50" (1/1) ... [2022-11-18 20:07:52,567 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:50" (1/1) ... [2022-11-18 20:07:52,684 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:50" (1/1) ... [2022-11-18 20:07:52,835 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:07:52,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:07:52,838 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:07:52,838 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:07:52,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:50" (1/1) ... [2022-11-18 20:07:52,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:07:52,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f8449-2035-41d3-9fdd-2a2c28545fe4/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:07:52,873 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f8449-2035-41d3-9fdd-2a2c28545fe4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:07:52,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_580f8449-2035-41d3-9fdd-2a2c28545fe4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:07:52,929 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-11-18 20:07:52,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-11-18 20:07:52,929 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-11-18 20:07:52,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-11-18 20:07:52,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:07:52,929 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-11-18 20:07:52,930 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-11-18 20:07:52,930 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-11-18 20:07:52,930 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-11-18 20:07:52,930 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-11-18 20:07:52,930 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-11-18 20:07:52,930 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-11-18 20:07:52,930 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-11-18 20:07:52,930 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-11-18 20:07:52,931 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-11-18 20:07:52,931 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-11-18 20:07:52,931 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-11-18 20:07:52,931 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-11-18 20:07:52,931 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-11-18 20:07:52,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:07:52,931 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-11-18 20:07:52,932 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-11-18 20:07:52,932 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-11-18 20:07:52,932 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-11-18 20:07:52,932 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-11-18 20:07:52,932 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-11-18 20:07:52,932 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-11-18 20:07:52,932 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-11-18 20:07:52,932 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-11-18 20:07:52,933 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-11-18 20:07:52,933 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-11-18 20:07:52,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-11-18 20:07:52,933 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-11-18 20:07:52,933 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-11-18 20:07:52,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:07:52,933 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-11-18 20:07:52,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-11-18 20:07:52,934 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-11-18 20:07:52,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-11-18 20:07:52,934 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-11-18 20:07:52,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-11-18 20:07:52,934 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-11-18 20:07:52,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-11-18 20:07:52,935 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-11-18 20:07:52,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-11-18 20:07:52,935 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-11-18 20:07:52,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-11-18 20:07:52,935 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-11-18 20:07:52,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-11-18 20:07:52,935 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-11-18 20:07:52,936 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-11-18 20:07:52,936 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-11-18 20:07:52,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-11-18 20:07:52,936 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-11-18 20:07:52,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-11-18 20:07:52,938 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-11-18 20:07:52,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-11-18 20:07:52,939 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-11-18 20:07:52,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-11-18 20:07:52,939 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-11-18 20:07:52,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-11-18 20:07:52,939 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-18 20:07:52,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-18 20:07:52,940 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-11-18 20:07:52,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-11-18 20:07:52,940 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-11-18 20:07:52,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-11-18 20:07:52,940 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-11-18 20:07:52,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-11-18 20:07:52,940 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-11-18 20:07:52,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-11-18 20:07:52,941 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-11-18 20:07:52,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-11-18 20:07:52,941 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-11-18 20:07:52,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-11-18 20:07:52,941 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-11-18 20:07:52,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-11-18 20:07:52,942 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-11-18 20:07:52,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-11-18 20:07:52,942 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2022-11-18 20:07:52,943 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2022-11-18 20:07:52,943 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-11-18 20:07:52,943 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-11-18 20:07:52,943 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-11-18 20:07:52,943 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-11-18 20:07:52,943 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-11-18 20:07:52,943 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-11-18 20:07:52,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:07:52,944 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-11-18 20:07:52,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-11-18 20:07:52,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:07:52,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:07:54,083 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:07:54,087 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:11:53,189 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:11:53,226 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:11:53,226 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-18 20:11:53,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:11:53 BoogieIcfgContainer [2022-11-18 20:11:53,233 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:11:53,235 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:11:53,235 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:11:53,238 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:11:53,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:07:48" (1/3) ... [2022-11-18 20:11:53,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cac89e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:11:53, skipping insertion in model container [2022-11-18 20:11:53,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:50" (2/3) ... [2022-11-18 20:11:53,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cac89e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:11:53, skipping insertion in model container [2022-11-18 20:11:53,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:11:53" (3/3) ... [2022-11-18 20:11:53,242 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_ctm.1.c [2022-11-18 20:11:53,261 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:11:53,261 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:11:53,394 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:11:53,401 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;@7c2d30d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:11:53,401 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 20:11:53,424 INFO L276 IsEmpty]: Start isEmpty. Operand has 4820 states, 4432 states have (on average 1.5476083032490975) internal successors, (6859), 4456 states have internal predecessors, (6859), 343 states have call successors, (343), 43 states have call predecessors, (343), 43 states have return successors, (343), 333 states have call predecessors, (343), 343 states have call successors, (343) [2022-11-18 20:11:53,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1934 [2022-11-18 20:11:53,649 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:11:53,654 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:11:53,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:53,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1736524066, now seen corresponding path program 1 times [2022-11-18 20:11:53,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:53,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959924150] [2022-11-18 20:11:53,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:53,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms