./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M4-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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/rekcba_aso.2.M4-1.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 2d62eb188ec8009366dfdca221ff91e65711c28198c7f8ea6438b1bcf863cd3f --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 18:30:01,680 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 18:30:01,706 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 18:30:01,724 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 18:30:01,725 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 18:30:01,725 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 18:30:01,726 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 18:30:01,727 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 18:30:01,729 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 18:30:01,729 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 18:30:01,730 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 18:30:01,731 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 18:30:01,731 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 18:30:01,732 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 18:30:01,732 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 18:30:01,733 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 18:30:01,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 18:30:01,734 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 18:30:01,736 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 18:30:01,737 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 18:30:01,738 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 18:30:01,739 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 18:30:01,740 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 18:30:01,740 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 18:30:01,741 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 18:30:01,743 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 18:30:01,743 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 18:30:01,743 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 18:30:01,744 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 18:30:01,744 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 18:30:01,745 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 18:30:01,745 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 18:30:01,746 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 18:30:01,746 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 18:30:01,747 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 18:30:01,747 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 18:30:01,747 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 18:30:01,748 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 18:30:01,748 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 18:30:01,748 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 18:30:01,749 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 18:30:01,752 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 18:30:01,753 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 18:30:01,771 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 18:30:01,771 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 18:30:01,771 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 18:30:01,771 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 18:30:01,772 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 18:30:01,772 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 18:30:01,772 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 18:30:01,773 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 18:30:01,773 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 18:30:01,773 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 18:30:01,773 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 18:30:01,773 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 18:30:01,773 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 18:30:01,774 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 18:30:01,774 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 18:30:01,774 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 18:30:01,774 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 18:30:01,774 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 18:30:01,774 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 18:30:01,774 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 18:30:01,775 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 18:30:01,775 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 18:30:01,775 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 18:30:01,775 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 18:30:01,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 18:30:01,775 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 18:30:01,776 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 18:30:01,776 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 18:30:01,776 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 18:30:01,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 18:30:01,776 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 18:30:01,776 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 18:30:01,776 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 18:30:01,777 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d62eb188ec8009366dfdca221ff91e65711c28198c7f8ea6438b1bcf863cd3f [2022-07-13 18:30:01,921 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 18:30:01,936 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 18:30:01,938 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 18:30:01,939 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 18:30:01,939 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 18:30:01,940 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M4-1.c [2022-07-13 18:30:02,019 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9fa8eee3/07722410f9f349ef8df892722a6df044/FLAGc88f07850 [2022-07-13 18:30:02,579 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 18:30:02,580 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M4-1.c [2022-07-13 18:30:02,610 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9fa8eee3/07722410f9f349ef8df892722a6df044/FLAGc88f07850 [2022-07-13 18:30:02,747 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9fa8eee3/07722410f9f349ef8df892722a6df044 [2022-07-13 18:30:02,749 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 18:30:02,750 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 18:30:02,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 18:30:02,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 18:30:02,762 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 18:30:02,762 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:30:02" (1/1) ... [2022-07-13 18:30:02,763 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c5d8cc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:30:02, skipping insertion in model container [2022-07-13 18:30:02,763 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:30:02" (1/1) ... [2022-07-13 18:30:02,768 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 18:30:02,880 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 18:30:03,111 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/rekcba_aso.2.M4-1.c[2836,2849] [2022-07-13 18:30:03,776 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 18:30:03,800 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 18:30:03,824 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/rekcba_aso.2.M4-1.c[2836,2849] [2022-07-13 18:30:04,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 18:30:04,377 INFO L208 MainTranslator]: Completed translation [2022-07-13 18:30:04,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:30:04 WrapperNode [2022-07-13 18:30:04,378 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 18:30:04,379 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 18:30:04,379 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 18:30:04,379 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 18:30:04,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:30:04" (1/1) ... [2022-07-13 18:30:04,815 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:30:04" (1/1) ... [2022-07-13 18:30:05,649 INFO L137 Inliner]: procedures = 63, calls = 19673, calls flagged for inlining = 22, calls inlined = 22, statements flattened = 42427 [2022-07-13 18:30:05,650 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 18:30:05,651 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 18:30:05,651 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 18:30:05,652 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 18:30:05,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:30:04" (1/1) ... [2022-07-13 18:30:05,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:30:04" (1/1) ... [2022-07-13 18:30:06,068 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:30:04" (1/1) ... [2022-07-13 18:30:06,084 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:30:04" (1/1) ... [2022-07-13 18:30:06,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:30:04" (1/1) ... [2022-07-13 18:30:06,913 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:30:04" (1/1) ... [2022-07-13 18:30:07,008 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:30:04" (1/1) ... [2022-07-13 18:30:07,159 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 18:30:07,160 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 18:30:07,161 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 18:30:07,161 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 18:30:07,162 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:30:04" (1/1) ... [2022-07-13 18:30:07,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 18:30:07,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 18:30:07,186 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) [2022-07-13 18:30:07,203 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 [2022-07-13 18:30:07,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 18:30:07,229 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-07-13 18:30:07,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-07-13 18:30:07,229 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-07-13 18:30:07,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-07-13 18:30:07,229 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-07-13 18:30:07,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-07-13 18:30:07,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 18:30:07,230 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-07-13 18:30:07,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-07-13 18:30:07,230 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-07-13 18:30:07,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-07-13 18:30:07,230 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-07-13 18:30:07,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-07-13 18:30:07,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 18:30:07,230 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-07-13 18:30:07,230 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-07-13 18:30:07,231 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-07-13 18:30:07,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-07-13 18:30:07,231 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-07-13 18:30:07,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-07-13 18:30:07,231 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-07-13 18:30:07,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-07-13 18:30:07,231 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-07-13 18:30:07,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-07-13 18:30:07,232 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-07-13 18:30:07,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-07-13 18:30:07,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 18:30:07,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 18:30:07,232 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-07-13 18:30:07,232 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-07-13 18:30:07,232 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-07-13 18:30:07,232 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-07-13 18:30:07,232 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-07-13 18:30:07,233 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-07-13 18:30:07,233 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-07-13 18:30:07,233 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-07-13 18:30:07,233 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-13 18:30:07,233 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-13 18:30:07,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 18:30:07,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 18:30:07,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 18:30:07,233 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-07-13 18:30:07,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-07-13 18:30:07,234 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-07-13 18:30:07,234 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-07-13 18:30:07,234 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-07-13 18:30:07,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-07-13 18:30:07,234 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-07-13 18:30:07,235 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-07-13 18:30:08,815 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 18:30:08,816 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 18:31:18,426 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 18:31:18,458 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 18:31:18,459 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-13 18:31:18,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:31:18 BoogieIcfgContainer [2022-07-13 18:31:18,471 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 18:31:18,474 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 18:31:18,474 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 18:31:18,477 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 18:31:18,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 06:30:02" (1/3) ... [2022-07-13 18:31:18,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12cac028 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:31:18, skipping insertion in model container [2022-07-13 18:31:18,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:30:04" (2/3) ... [2022-07-13 18:31:18,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12cac028 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:31:18, skipping insertion in model container [2022-07-13 18:31:18,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:31:18" (3/3) ... [2022-07-13 18:31:18,481 INFO L111 eAbstractionObserver]: Analyzing ICFG rekcba_aso.2.M4-1.c [2022-07-13 18:31:18,491 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 18:31:18,492 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 18:31:18,680 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 18:31:18,684 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@49d03661, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@700d478 [2022-07-13 18:31:18,685 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 18:31:18,715 INFO L276 IsEmpty]: Start isEmpty. Operand has 12868 states, 8328 states have (on average 1.3061959654178674) internal successors, (10878), 8440 states have internal predecessors, (10878), 4517 states have call successors, (4517), 21 states have call predecessors, (4517), 21 states have return successors, (4517), 4515 states have call predecessors, (4517), 4517 states have call successors, (4517) [2022-07-13 18:31:19,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5901 [2022-07-13 18:31:19,367 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:31:19,371 INFO L195 NwaCegarLoop]: trace histogram [551, 551, 551, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:31:19,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:31:19,381 INFO L85 PathProgramCache]: Analyzing trace with hash 70935065, now seen corresponding path program 1 times [2022-07-13 18:31:19,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:31:19,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126426648] [2022-07-13 18:31:19,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:31:19,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms