./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 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.2.M1-2.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 e0f65ddacc19e229149f7733305e27ede1d7c46ea04122324ae4c2ba294bcff0 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 13:35:41,922 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 13:35:41,936 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 13:35:41,983 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 13:35:41,983 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 13:35:41,984 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 13:35:41,985 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 13:35:41,986 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 13:35:41,988 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 13:35:41,988 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 13:35:41,989 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 13:35:41,990 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 13:35:41,990 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 13:35:41,991 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 13:35:41,992 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 13:35:41,993 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 13:35:41,994 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 13:35:41,994 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 13:35:41,996 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 13:35:41,997 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 13:35:41,998 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 13:35:42,003 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 13:35:42,004 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 13:35:42,004 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 13:35:42,006 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 13:35:42,013 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 13:35:42,013 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 13:35:42,014 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 13:35:42,015 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 13:35:42,015 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 13:35:42,016 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 13:35:42,016 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 13:35:42,017 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 13:35:42,017 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 13:35:42,021 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 13:35:42,021 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 13:35:42,022 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 13:35:42,022 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 13:35:42,022 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 13:35:42,024 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 13:35:42,025 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 13:35:42,027 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 13:35:42,056 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 13:35:42,057 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 13:35:42,057 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 13:35:42,057 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 13:35:42,058 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 13:35:42,058 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 13:35:42,058 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 13:35:42,058 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 13:35:42,059 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 13:35:42,059 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 13:35:42,059 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 13:35:42,059 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 13:35:42,059 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 13:35:42,059 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 13:35:42,060 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 13:35:42,060 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 13:35:42,060 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 13:35:42,060 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 13:35:42,060 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 13:35:42,060 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 13:35:42,060 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 13:35:42,061 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 13:35:42,061 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 13:35:42,061 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 13:35:42,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 13:35:42,061 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 13:35:42,061 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 13:35:42,062 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 13:35:42,062 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 13:35:42,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 13:35:42,062 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 13:35:42,062 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 13:35:42,062 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 13:35:42,062 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 13:35:42,063 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0f65ddacc19e229149f7733305e27ede1d7c46ea04122324ae4c2ba294bcff0 [2021-12-21 13:35:42,278 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 13:35:42,303 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 13:35:42,306 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 13:35:42,307 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 13:35:42,307 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 13:35:42,309 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-2.c [2021-12-21 13:35:42,362 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e77aa3a2/754772681858427c94077bd8a358be51/FLAG0b50d56cd [2021-12-21 13:35:42,831 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 13:35:42,832 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-2.c [2021-12-21 13:35:42,847 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e77aa3a2/754772681858427c94077bd8a358be51/FLAG0b50d56cd [2021-12-21 13:35:43,340 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e77aa3a2/754772681858427c94077bd8a358be51 [2021-12-21 13:35:43,343 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 13:35:43,344 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 13:35:43,358 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 13:35:43,358 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 13:35:43,361 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 13:35:43,361 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:35:43" (1/1) ... [2021-12-21 13:35:43,362 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1df6ef34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:43, skipping insertion in model container [2021-12-21 13:35:43,362 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:35:43" (1/1) ... [2021-12-21 13:35:43,367 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 13:35:43,421 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 13:35:43,671 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.2.M1-2.c[1974,1987] [2021-12-21 13:35:43,891 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 13:35:43,899 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 13:35:43,909 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.2.M1-2.c[1974,1987] [2021-12-21 13:35:44,082 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 13:35:44,100 INFO L208 MainTranslator]: Completed translation [2021-12-21 13:35:44,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:44 WrapperNode [2021-12-21 13:35:44,101 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 13:35:44,102 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 13:35:44,102 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 13:35:44,102 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 13:35:44,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:44" (1/1) ... [2021-12-21 13:35:44,169 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:44" (1/1) ... [2021-12-21 13:35:44,336 INFO L137 Inliner]: procedures = 61, calls = 3158, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 6014 [2021-12-21 13:35:44,337 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 13:35:44,338 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 13:35:44,338 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 13:35:44,338 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 13:35:44,345 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:44" (1/1) ... [2021-12-21 13:35:44,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:44" (1/1) ... [2021-12-21 13:35:44,380 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:44" (1/1) ... [2021-12-21 13:35:44,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:44" (1/1) ... [2021-12-21 13:35:44,510 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:44" (1/1) ... [2021-12-21 13:35:44,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:44" (1/1) ... [2021-12-21 13:35:44,624 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:44" (1/1) ... [2021-12-21 13:35:44,655 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 13:35:44,656 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 13:35:44,657 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 13:35:44,657 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 13:35:44,658 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:44" (1/1) ... [2021-12-21 13:35:44,665 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 13:35:44,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 13:35:44,701 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) [2021-12-21 13:35:44,737 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 [2021-12-21 13:35:44,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 13:35:44,751 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2021-12-21 13:35:44,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2021-12-21 13:35:44,751 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-12-21 13:35:44,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-12-21 13:35:44,751 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2021-12-21 13:35:44,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2021-12-21 13:35:44,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 13:35:44,752 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-12-21 13:35:44,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-12-21 13:35:44,752 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-12-21 13:35:44,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-12-21 13:35:44,752 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2021-12-21 13:35:44,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2021-12-21 13:35:44,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 13:35:44,753 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-12-21 13:35:44,753 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-12-21 13:35:44,753 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2021-12-21 13:35:44,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2021-12-21 13:35:44,753 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2021-12-21 13:35:44,753 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2021-12-21 13:35:44,753 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2021-12-21 13:35:44,754 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2021-12-21 13:35:44,754 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2021-12-21 13:35:44,754 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2021-12-21 13:35:44,754 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2021-12-21 13:35:44,754 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2021-12-21 13:35:44,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 13:35:44,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 13:35:44,755 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-12-21 13:35:44,755 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-12-21 13:35:44,755 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2021-12-21 13:35:44,755 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2021-12-21 13:35:44,755 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2021-12-21 13:35:44,756 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2021-12-21 13:35:44,756 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2021-12-21 13:35:44,756 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2021-12-21 13:35:44,756 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-21 13:35:44,756 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-21 13:35:44,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 13:35:44,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 13:35:44,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 13:35:44,757 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2021-12-21 13:35:44,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2021-12-21 13:35:44,757 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-12-21 13:35:44,757 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-12-21 13:35:44,757 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2021-12-21 13:35:44,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2021-12-21 13:35:44,758 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2021-12-21 13:35:44,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2021-12-21 13:35:45,200 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 13:35:45,201 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 13:35:52,980 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 13:35:52,994 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 13:35:52,994 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-21 13:35:52,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:35:52 BoogieIcfgContainer [2021-12-21 13:35:52,997 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 13:35:52,998 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 13:35:52,999 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 13:35:53,001 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 13:35:53,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 01:35:43" (1/3) ... [2021-12-21 13:35:53,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aa11d14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:35:53, skipping insertion in model container [2021-12-21 13:35:53,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:44" (2/3) ... [2021-12-21 13:35:53,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aa11d14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:35:53, skipping insertion in model container [2021-12-21 13:35:53,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:35:52" (3/3) ... [2021-12-21 13:35:53,003 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_aso.2.M1-2.c [2021-12-21 13:35:53,007 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 13:35:53,007 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 13:35:53,046 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 13:35:53,051 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 [2021-12-21 13:35:53,052 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 13:35:53,106 INFO L276 IsEmpty]: Start isEmpty. Operand has 2371 states, 1382 states have (on average 1.2011577424023154) internal successors, (1660), 1386 states have internal predecessors, (1660), 966 states have call successors, (966), 21 states have call predecessors, (966), 21 states have return successors, (966), 964 states have call predecessors, (966), 966 states have call successors, (966) [2021-12-21 13:35:53,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1337 [2021-12-21 13:35:53,167 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:35:53,169 INFO L514 BasicCegarLoop]: trace histogram [209, 209, 209, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 13:35:53,169 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:35:53,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:35:53,178 INFO L85 PathProgramCache]: Analyzing trace with hash -982308712, now seen corresponding path program 1 times [2021-12-21 13:35:53,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:35:53,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095750864] [2021-12-21 13:35:53,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:35:53,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms