./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0c11dfbc24d8e2936a0720b93d6e580e096b076c7149ef4cbc8369f1ef818941 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 11:57:33,883 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 11:57:33,884 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 11:57:33,956 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 11:57:33,956 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 11:57:33,960 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 11:57:33,962 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 11:57:33,967 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 11:57:33,968 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 11:57:33,968 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 11:57:33,969 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 11:57:33,970 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 11:57:33,970 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 11:57:33,971 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 11:57:33,972 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 11:57:33,973 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 11:57:33,974 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 11:57:33,974 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 11:57:33,976 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 11:57:33,977 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 11:57:33,979 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 11:57:33,980 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 11:57:33,981 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 11:57:33,982 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 11:57:33,989 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 11:57:33,997 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 11:57:33,998 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 11:57:33,999 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 11:57:33,999 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 11:57:34,000 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 11:57:34,000 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 11:57:34,001 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 11:57:34,002 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 11:57:34,003 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 11:57:34,004 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 11:57:34,005 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 11:57:34,006 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 11:57:34,007 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 11:57:34,007 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 11:57:34,008 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 11:57:34,008 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 11:57:34,009 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-22 11:57:34,044 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 11:57:34,048 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 11:57:34,048 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 11:57:34,048 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 11:57:34,049 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 11:57:34,049 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 11:57:34,050 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 11:57:34,050 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 11:57:34,050 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 11:57:34,051 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 11:57:34,051 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 11:57:34,052 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 11:57:34,052 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 11:57:34,052 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 11:57:34,052 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 11:57:34,052 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 11:57:34,052 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 11:57:34,053 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 11:57:34,053 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 11:57:34,053 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 11:57:34,053 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 11:57:34,053 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 11:57:34,054 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 11:57:34,054 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 11:57:34,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 11:57:34,054 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 11:57:34,054 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 11:57:34,056 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 11:57:34,056 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 11:57:34,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 11:57:34,056 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 11:57:34,056 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 11:57:34,057 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 11:57:34,057 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 11:57:34,057 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c11dfbc24d8e2936a0720b93d6e580e096b076c7149ef4cbc8369f1ef818941 [2021-12-22 11:57:34,266 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 11:57:34,283 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 11:57:34,285 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 11:57:34,286 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 11:57:34,287 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 11:57:34,288 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c [2021-12-22 11:57:34,353 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d131290d7/f80fabd4df7b4f3daa7eb2b6c545445a/FLAGab6bd4682 [2021-12-22 11:57:34,936 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 11:57:34,937 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c [2021-12-22 11:57:34,955 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d131290d7/f80fabd4df7b4f3daa7eb2b6c545445a/FLAGab6bd4682 [2021-12-22 11:57:35,321 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d131290d7/f80fabd4df7b4f3daa7eb2b6c545445a [2021-12-22 11:57:35,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 11:57:35,324 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 11:57:35,325 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 11:57:35,325 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 11:57:35,327 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 11:57:35,327 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:57:35" (1/1) ... [2021-12-22 11:57:35,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e4bfc95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:57:35, skipping insertion in model container [2021-12-22 11:57:35,329 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:57:35" (1/1) ... [2021-12-22 11:57:35,333 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 11:57:35,392 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 11:57:35,565 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c[1870,1883] [2021-12-22 11:57:36,018 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 11:57:36,037 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 11:57:36,056 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c[1870,1883] [2021-12-22 11:57:36,318 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 11:57:36,357 INFO L208 MainTranslator]: Completed translation [2021-12-22 11:57:36,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:57:36 WrapperNode [2021-12-22 11:57:36,358 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 11:57:36,359 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 11:57:36,360 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 11:57:36,360 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 11:57:36,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:57:36" (1/1) ... [2021-12-22 11:57:36,457 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:57:36" (1/1) ... [2021-12-22 11:57:36,722 INFO L137 Inliner]: procedures = 99, calls = 2816, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8376 [2021-12-22 11:57:36,722 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 11:57:36,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 11:57:36,724 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 11:57:36,724 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 11:57:36,731 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:57:36" (1/1) ... [2021-12-22 11:57:36,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:57:36" (1/1) ... [2021-12-22 11:57:36,779 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:57:36" (1/1) ... [2021-12-22 11:57:36,780 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:57:36" (1/1) ... [2021-12-22 11:57:36,974 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:57:36" (1/1) ... [2021-12-22 11:57:36,999 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:57:36" (1/1) ... [2021-12-22 11:57:37,024 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:57:36" (1/1) ... [2021-12-22 11:57:37,055 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 11:57:37,057 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 11:57:37,057 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 11:57:37,057 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 11:57:37,058 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:57:36" (1/1) ... [2021-12-22 11:57:37,065 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 11:57:37,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:57:37,088 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-22 11:57:37,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-22 11:57:37,127 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2021-12-22 11:57:37,127 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2021-12-22 11:57:37,128 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2021-12-22 11:57:37,128 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2021-12-22 11:57:37,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 11:57:37,128 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2021-12-22 11:57:37,128 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2021-12-22 11:57:37,128 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-12-22 11:57:37,129 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-12-22 11:57:37,129 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2021-12-22 11:57:37,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2021-12-22 11:57:37,129 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2021-12-22 11:57:37,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2021-12-22 11:57:37,129 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2021-12-22 11:57:37,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2021-12-22 11:57:37,129 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2021-12-22 11:57:37,130 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2021-12-22 11:57:37,130 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2021-12-22 11:57:37,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2021-12-22 11:57:37,130 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2021-12-22 11:57:37,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2021-12-22 11:57:37,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 11:57:37,130 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-12-22 11:57:37,131 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-12-22 11:57:37,131 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2021-12-22 11:57:37,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2021-12-22 11:57:37,131 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2021-12-22 11:57:37,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2021-12-22 11:57:37,131 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2021-12-22 11:57:37,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2021-12-22 11:57:37,132 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2021-12-22 11:57:37,132 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2021-12-22 11:57:37,132 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2021-12-22 11:57:37,132 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2021-12-22 11:57:37,132 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-12-22 11:57:37,132 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-12-22 11:57:37,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 11:57:37,133 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-12-22 11:57:37,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-12-22 11:57:37,133 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2021-12-22 11:57:37,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2021-12-22 11:57:37,133 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2021-12-22 11:57:37,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2021-12-22 11:57:37,134 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2021-12-22 11:57:37,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2021-12-22 11:57:37,134 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-12-22 11:57:37,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-12-22 11:57:37,134 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2021-12-22 11:57:37,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2021-12-22 11:57:37,134 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-12-22 11:57:37,135 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-12-22 11:57:37,135 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2021-12-22 11:57:37,135 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2021-12-22 11:57:37,136 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2021-12-22 11:57:37,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2021-12-22 11:57:37,137 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2021-12-22 11:57:37,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2021-12-22 11:57:37,137 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2021-12-22 11:57:37,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2021-12-22 11:57:37,138 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2021-12-22 11:57:37,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2021-12-22 11:57:37,138 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2021-12-22 11:57:37,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2021-12-22 11:57:37,138 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2021-12-22 11:57:37,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2021-12-22 11:57:37,139 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2021-12-22 11:57:37,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2021-12-22 11:57:37,139 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2021-12-22 11:57:37,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2021-12-22 11:57:37,139 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2021-12-22 11:57:37,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2021-12-22 11:57:37,139 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2021-12-22 11:57:37,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2021-12-22 11:57:37,140 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2021-12-22 11:57:37,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2021-12-22 11:57:37,141 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2021-12-22 11:57:37,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2021-12-22 11:57:37,141 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2021-12-22 11:57:37,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2021-12-22 11:57:37,141 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2021-12-22 11:57:37,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2021-12-22 11:57:37,141 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2021-12-22 11:57:37,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2021-12-22 11:57:37,142 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2021-12-22 11:57:37,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2021-12-22 11:57:37,142 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2021-12-22 11:57:37,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2021-12-22 11:57:37,142 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2021-12-22 11:57:37,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2021-12-22 11:57:37,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 11:57:37,143 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2021-12-22 11:57:37,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2021-12-22 11:57:37,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 11:57:37,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 11:57:37,745 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 11:57:37,747 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 11:57:53,693 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 11:57:53,723 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 11:57:53,723 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-22 11:57:53,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:57:53 BoogieIcfgContainer [2021-12-22 11:57:53,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 11:57:53,728 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 11:57:53,728 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 11:57:53,731 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 11:57:53,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:57:35" (1/3) ... [2021-12-22 11:57:53,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4721320a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:57:53, skipping insertion in model container [2021-12-22 11:57:53,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:57:36" (2/3) ... [2021-12-22 11:57:53,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4721320a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:57:53, skipping insertion in model container [2021-12-22 11:57:53,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:57:53" (3/3) ... [2021-12-22 11:57:53,734 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_ctm.3-1.c [2021-12-22 11:57:53,738 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 11:57:53,739 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 11:57:53,798 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 11:57:53,803 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-22 11:57:53,803 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 11:57:53,913 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) [2021-12-22 11:57:53,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-12-22 11:57:53,939 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:57:53,940 INFO L514 BasicCegarLoop]: 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] [2021-12-22 11:57:53,941 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:57:53,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:57:53,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1381223433, now seen corresponding path program 1 times [2021-12-22 11:57:53,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:57:53,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785506775] [2021-12-22 11:57:53,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:57:53,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms