./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c 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_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 90b68e26a5af3ce5617cd52d8dc6ef78c48b8482383cda056e3d7235d8bf007f --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 06:52:44,048 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 06:52:44,050 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 06:52:44,081 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 06:52:44,082 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 06:52:44,082 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 06:52:44,083 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 06:52:44,085 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 06:52:44,086 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 06:52:44,087 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 06:52:44,087 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 06:52:44,088 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 06:52:44,088 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 06:52:44,089 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 06:52:44,090 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 06:52:44,091 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 06:52:44,091 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 06:52:44,092 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 06:52:44,093 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 06:52:44,094 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 06:52:44,096 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 06:52:44,096 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 06:52:44,097 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 06:52:44,098 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 06:52:44,099 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 06:52:44,101 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 06:52:44,101 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 06:52:44,101 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 06:52:44,102 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 06:52:44,102 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 06:52:44,103 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 06:52:44,103 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 06:52:44,104 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 06:52:44,104 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 06:52:44,105 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 06:52:44,106 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 06:52:44,106 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 06:52:44,106 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 06:52:44,106 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 06:52:44,107 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 06:52:44,107 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 06:52:44,109 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 06:52:44,111 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 06:52:44,133 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 06:52:44,134 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 06:52:44,134 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 06:52:44,134 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 06:52:44,135 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 06:52:44,135 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 06:52:44,136 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 06:52:44,136 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 06:52:44,136 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 06:52:44,137 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 06:52:44,137 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 06:52:44,137 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 06:52:44,137 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 06:52:44,137 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 06:52:44,137 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 06:52:44,138 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 06:52:44,138 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 06:52:44,138 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 06:52:44,138 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 06:52:44,139 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 06:52:44,139 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 06:52:44,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 06:52:44,140 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 06:52:44,140 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 06:52:44,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 06:52:44,140 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 06:52:44,140 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 06:52:44,141 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 06:52:44,141 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 06:52:44,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 06:52:44,141 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 06:52:44,141 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 06:52:44,141 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 06:52:44,142 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 90b68e26a5af3ce5617cd52d8dc6ef78c48b8482383cda056e3d7235d8bf007f [2022-07-12 06:52:44,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 06:52:44,375 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 06:52:44,378 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 06:52:44,379 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 06:52:44,379 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 06:52:44,380 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M1.c [2022-07-12 06:52:44,444 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9499b6e06/a2940909fea84a46943071cbb8685c65/FLAG60a0edcfa [2022-07-12 06:52:45,005 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 06:52:45,005 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M1.c [2022-07-12 06:52:45,030 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9499b6e06/a2940909fea84a46943071cbb8685c65/FLAG60a0edcfa [2022-07-12 06:52:45,249 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9499b6e06/a2940909fea84a46943071cbb8685c65 [2022-07-12 06:52:45,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 06:52:45,254 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 06:52:45,256 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 06:52:45,257 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 06:52:45,259 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 06:52:45,260 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 06:52:45" (1/1) ... [2022-07-12 06:52:45,262 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3db73a64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:52:45, skipping insertion in model container [2022-07-12 06:52:45,262 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 06:52:45" (1/1) ... [2022-07-12 06:52:45,267 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 06:52:45,332 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 06:52:45,515 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_aso.3.M1.c[1806,1819] [2022-07-12 06:52:45,979 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 06:52:45,991 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 06:52:46,003 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_aso.3.M1.c[1806,1819] [2022-07-12 06:52:46,218 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 06:52:46,237 INFO L208 MainTranslator]: Completed translation [2022-07-12 06:52:46,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:52:46 WrapperNode [2022-07-12 06:52:46,238 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 06:52:46,239 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 06:52:46,239 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 06:52:46,239 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 06:52:46,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:52:46" (1/1) ... [2022-07-12 06:52:46,352 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:52:46" (1/1) ... [2022-07-12 06:52:46,650 INFO L137 Inliner]: procedures = 70, calls = 5190, calls flagged for inlining = 25, calls inlined = 25, statements flattened = 9710 [2022-07-12 06:52:46,650 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 06:52:46,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 06:52:46,652 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 06:52:46,652 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 06:52:46,659 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:52:46" (1/1) ... [2022-07-12 06:52:46,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:52:46" (1/1) ... [2022-07-12 06:52:46,730 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:52:46" (1/1) ... [2022-07-12 06:52:46,731 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:52:46" (1/1) ... [2022-07-12 06:52:46,927 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:52:46" (1/1) ... [2022-07-12 06:52:46,949 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:52:46" (1/1) ... [2022-07-12 06:52:46,978 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:52:46" (1/1) ... [2022-07-12 06:52:47,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 06:52:47,023 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 06:52:47,024 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 06:52:47,024 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 06:52:47,025 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:52:46" (1/1) ... [2022-07-12 06:52:47,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 06:52:47,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 06:52:47,051 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) [2022-07-12 06:52:47,060 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 [2022-07-12 06:52:47,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 06:52:47,078 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-07-12 06:52:47,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-07-12 06:52:47,078 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-07-12 06:52:47,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-07-12 06:52:47,078 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-07-12 06:52:47,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-07-12 06:52:47,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 06:52:47,078 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-07-12 06:52:47,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-07-12 06:52:47,079 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-07-12 06:52:47,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-07-12 06:52:47,079 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-07-12 06:52:47,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-07-12 06:52:47,079 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-07-12 06:52:47,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-07-12 06:52:47,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 06:52:47,080 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-07-12 06:52:47,080 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-07-12 06:52:47,080 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_version [2022-07-12 06:52:47,080 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_version [2022-07-12 06:52:47,080 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-07-12 06:52:47,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-07-12 06:52:47,080 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-07-12 06:52:47,080 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-07-12 06:52:47,080 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-07-12 06:52:47,081 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-07-12 06:52:47,112 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-07-12 06:52:47,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-07-12 06:52:47,112 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_version [2022-07-12 06:52:47,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_version [2022-07-12 06:52:47,112 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-07-12 06:52:47,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-07-12 06:52:47,112 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-07-12 06:52:47,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-07-12 06:52:47,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 06:52:47,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 06:52:47,112 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-07-12 06:52:47,112 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-07-12 06:52:47,112 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-07-12 06:52:47,112 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-07-12 06:52:47,112 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-07-12 06:52:47,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-07-12 06:52:47,113 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-07-12 06:52:47,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-07-12 06:52:47,113 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 06:52:47,113 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 06:52:47,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 06:52:47,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 06:52:47,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 06:52:47,113 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-07-12 06:52:47,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-07-12 06:52:47,113 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-07-12 06:52:47,113 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-07-12 06:52:47,113 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-07-12 06:52:47,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-07-12 06:52:47,113 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-07-12 06:52:47,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-07-12 06:52:47,804 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 06:52:47,805 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 06:53:00,449 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 06:53:00,475 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 06:53:00,476 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-12 06:53:00,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:53:00 BoogieIcfgContainer [2022-07-12 06:53:00,482 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 06:53:00,485 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 06:53:00,486 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 06:53:00,488 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 06:53:00,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 06:52:45" (1/3) ... [2022-07-12 06:53:00,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b8541be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 06:53:00, skipping insertion in model container [2022-07-12 06:53:00,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:52:46" (2/3) ... [2022-07-12 06:53:00,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b8541be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 06:53:00, skipping insertion in model container [2022-07-12 06:53:00,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:53:00" (3/3) ... [2022-07-12 06:53:00,493 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_aso.3.M1.c [2022-07-12 06:53:00,553 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 06:53:00,554 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 06:53:00,664 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 06:53:00,671 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@2613d8d2, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@693ec5af [2022-07-12 06:53:00,671 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 06:53:00,684 INFO L276 IsEmpty]: Start isEmpty. Operand has 3583 states, 2047 states have (on average 1.1656082071323888) internal successors, (2386), 2052 states have internal predecessors, (2386), 1509 states have call successors, (1509), 25 states have call predecessors, (1509), 25 states have return successors, (1509), 1507 states have call predecessors, (1509), 1509 states have call successors, (1509) [2022-07-12 06:53:00,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1377 [2022-07-12 06:53:00,751 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:53:00,754 INFO L195 NwaCegarLoop]: trace histogram [210, 210, 210, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:53:00,755 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:53:00,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:53:00,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1031046555, now seen corresponding path program 1 times [2022-07-12 06:53:00,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:53:00,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597616919] [2022-07-12 06:53:00,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:53:00,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms