./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekcba_aso.3.M1.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/rekcba_aso.3.M1.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 ab9f0c8bf8702d6b09918533becccbdb970411e8ea985342c84585cb962ca4e1 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 11:54:59,011 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 11:54:59,019 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 11:54:59,067 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 11:54:59,067 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 11:54:59,068 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 11:54:59,069 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 11:54:59,071 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 11:54:59,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 11:54:59,073 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 11:54:59,074 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 11:54:59,075 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 11:54:59,076 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 11:54:59,077 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 11:54:59,078 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 11:54:59,079 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 11:54:59,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 11:54:59,083 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 11:54:59,085 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 11:54:59,091 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 11:54:59,093 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 11:54:59,098 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 11:54:59,099 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 11:54:59,100 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 11:54:59,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 11:54:59,102 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 11:54:59,103 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 11:54:59,103 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 11:54:59,104 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 11:54:59,105 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 11:54:59,106 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 11:54:59,107 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 11:54:59,108 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 11:54:59,108 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 11:54:59,109 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 11:54:59,112 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 11:54:59,113 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 11:54:59,113 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 11:54:59,114 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 11:54:59,114 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 11:54:59,115 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 11:54:59,116 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-22 11:54:59,148 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 11:54:59,149 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 11:54:59,149 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 11:54:59,149 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 11:54:59,150 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 11:54:59,150 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 11:54:59,151 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 11:54:59,151 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 11:54:59,151 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 11:54:59,151 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 11:54:59,151 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 11:54:59,152 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 11:54:59,152 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 11:54:59,152 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 11:54:59,152 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 11:54:59,152 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 11:54:59,153 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 11:54:59,153 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 11:54:59,153 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 11:54:59,153 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 11:54:59,153 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 11:54:59,154 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 11:54:59,154 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 11:54:59,154 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 11:54:59,154 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 11:54:59,154 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 11:54:59,155 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 11:54:59,155 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 11:54:59,155 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 11:54:59,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 11:54:59,156 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 11:54:59,156 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 11:54:59,156 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 11:54:59,156 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 11:54:59,156 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab9f0c8bf8702d6b09918533becccbdb970411e8ea985342c84585cb962ca4e1 [2021-12-22 11:54:59,362 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 11:54:59,382 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 11:54:59,384 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 11:54:59,385 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 11:54:59,386 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 11:54:59,387 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_aso.3.M1.c [2021-12-22 11:54:59,437 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f8dc658e/d86ad77b531e4bcc9bbee26b734f7fbc/FLAG0b32daeb2 [2021-12-22 11:54:59,977 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 11:54:59,978 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_aso.3.M1.c [2021-12-22 11:55:00,003 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f8dc658e/d86ad77b531e4bcc9bbee26b734f7fbc/FLAG0b32daeb2 [2021-12-22 11:55:00,463 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f8dc658e/d86ad77b531e4bcc9bbee26b734f7fbc [2021-12-22 11:55:00,467 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 11:55:00,468 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 11:55:00,471 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 11:55:00,471 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 11:55:00,474 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 11:55:00,474 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:55:00" (1/1) ... [2021-12-22 11:55:00,475 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77ffd604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:55:00, skipping insertion in model container [2021-12-22 11:55:00,476 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:55:00" (1/1) ... [2021-12-22 11:55:00,481 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 11:55:00,543 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 11:55:00,694 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.3.M1.c[2061,2074] [2021-12-22 11:55:01,056 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 11:55:01,090 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 11:55:01,107 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.3.M1.c[2061,2074] [2021-12-22 11:55:01,324 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 11:55:01,348 INFO L208 MainTranslator]: Completed translation [2021-12-22 11:55:01,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:55:01 WrapperNode [2021-12-22 11:55:01,349 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 11:55:01,350 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 11:55:01,350 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 11:55:01,350 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 11:55:01,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:55:01" (1/1) ... [2021-12-22 11:55:01,415 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:55:01" (1/1) ... [2021-12-22 11:55:01,558 INFO L137 Inliner]: procedures = 72, calls = 2683, calls flagged for inlining = 27, calls inlined = 27, statements flattened = 5614 [2021-12-22 11:55:01,558 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 11:55:01,559 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 11:55:01,559 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 11:55:01,559 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 11:55:01,566 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:55:01" (1/1) ... [2021-12-22 11:55:01,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:55:01" (1/1) ... [2021-12-22 11:55:01,611 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:55:01" (1/1) ... [2021-12-22 11:55:01,612 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:55:01" (1/1) ... [2021-12-22 11:55:01,746 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:55:01" (1/1) ... [2021-12-22 11:55:01,769 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:55:01" (1/1) ... [2021-12-22 11:55:01,787 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:55:01" (1/1) ... [2021-12-22 11:55:01,810 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 11:55:01,811 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 11:55:01,812 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 11:55:01,812 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 11:55:01,813 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:55:01" (1/1) ... [2021-12-22 11:55:01,819 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 11:55:01,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:55:01,844 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 11:55:01,866 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 11:55:01,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 11:55:01,880 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2021-12-22 11:55:01,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2021-12-22 11:55:01,881 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-12-22 11:55:01,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-12-22 11:55:01,881 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2021-12-22 11:55:01,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2021-12-22 11:55:01,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 11:55:01,881 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-12-22 11:55:01,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-12-22 11:55:01,881 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-12-22 11:55:01,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-12-22 11:55:01,882 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2021-12-22 11:55:01,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2021-12-22 11:55:01,882 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2021-12-22 11:55:01,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2021-12-22 11:55:01,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 11:55:01,882 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-12-22 11:55:01,882 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-12-22 11:55:01,882 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_version [2021-12-22 11:55:01,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_version [2021-12-22 11:55:01,883 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2021-12-22 11:55:01,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2021-12-22 11:55:01,883 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2021-12-22 11:55:01,883 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2021-12-22 11:55:01,883 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2021-12-22 11:55:01,883 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2021-12-22 11:55:01,883 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2021-12-22 11:55:01,883 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2021-12-22 11:55:01,883 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_version [2021-12-22 11:55:01,883 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_version [2021-12-22 11:55:01,884 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2021-12-22 11:55:01,884 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2021-12-22 11:55:01,884 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2021-12-22 11:55:01,884 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2021-12-22 11:55:01,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 11:55:01,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 11:55:01,884 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-12-22 11:55:01,884 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-12-22 11:55:01,884 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2021-12-22 11:55:01,884 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2021-12-22 11:55:01,885 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2021-12-22 11:55:01,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2021-12-22 11:55:01,885 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2021-12-22 11:55:01,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2021-12-22 11:55:01,885 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-22 11:55:01,885 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-22 11:55:01,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 11:55:01,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 11:55:01,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 11:55:01,886 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2021-12-22 11:55:01,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2021-12-22 11:55:01,886 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-12-22 11:55:01,887 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-12-22 11:55:01,887 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2021-12-22 11:55:01,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2021-12-22 11:55:01,888 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2021-12-22 11:55:01,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2021-12-22 11:55:02,433 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 11:55:02,435 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 11:55:11,140 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 11:55:11,162 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 11:55:11,163 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-22 11:55:11,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:55:11 BoogieIcfgContainer [2021-12-22 11:55:11,167 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 11:55:11,168 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 11:55:11,169 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 11:55:11,171 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 11:55:11,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:55:00" (1/3) ... [2021-12-22 11:55:11,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@335046c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:55:11, skipping insertion in model container [2021-12-22 11:55:11,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:55:01" (2/3) ... [2021-12-22 11:55:11,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@335046c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:55:11, skipping insertion in model container [2021-12-22 11:55:11,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:55:11" (3/3) ... [2021-12-22 11:55:11,176 INFO L111 eAbstractionObserver]: Analyzing ICFG rekcba_aso.3.M1.c [2021-12-22 11:55:11,181 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 11:55:11,182 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 11:55:11,238 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 11:55:11,250 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 11:55:11,251 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 11:55:11,310 INFO L276 IsEmpty]: Start isEmpty. Operand has 1650 states, 1023 states have (on average 1.2561094819159335) internal successors, (1285), 1055 states have internal predecessors, (1285), 600 states have call successors, (600), 25 states have call predecessors, (600), 25 states have return successors, (600), 598 states have call predecessors, (600), 600 states have call successors, (600) [2021-12-22 11:55:11,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1659 [2021-12-22 11:55:11,458 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:55:11,460 INFO L514 BasicCegarLoop]: trace histogram [241, 241, 241, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:55:11,460 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:55:11,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:55:11,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1503460362, now seen corresponding path program 1 times [2021-12-22 11:55:11,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:55:11,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709014439] [2021-12-22 11:55:11,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:55:11,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms