./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M1-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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.1.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 0578c41b95f42d85ac77fb0006dcba936c74afd1d4a8fb3392e12544fff9b4d0 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 16:01:35,918 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 16:01:35,921 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 16:01:35,961 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 16:01:35,961 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 16:01:35,962 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 16:01:35,963 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 16:01:35,965 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 16:01:35,966 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 16:01:35,967 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 16:01:35,967 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 16:01:35,968 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 16:01:35,969 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 16:01:35,970 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 16:01:35,971 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 16:01:35,972 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 16:01:35,972 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 16:01:35,973 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 16:01:35,975 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 16:01:35,977 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 16:01:35,978 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 16:01:35,979 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 16:01:35,980 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 16:01:35,981 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 16:01:35,986 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 16:01:35,987 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 16:01:35,987 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 16:01:35,988 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 16:01:35,988 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 16:01:35,989 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 16:01:35,990 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 16:01:35,990 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 16:01:36,000 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 16:01:36,001 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 16:01:36,002 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 16:01:36,002 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 16:01:36,002 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 16:01:36,003 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 16:01:36,003 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 16:01:36,004 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 16:01:36,004 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 16:01:36,008 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 16:01:36,031 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 16:01:36,032 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 16:01:36,033 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 16:01:36,033 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 16:01:36,034 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 16:01:36,034 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 16:01:36,034 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 16:01:36,035 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 16:01:36,035 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 16:01:36,035 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 16:01:36,036 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 16:01:36,036 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 16:01:36,036 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 16:01:36,036 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 16:01:36,036 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 16:01:36,037 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 16:01:36,037 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 16:01:36,037 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 16:01:36,037 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 16:01:36,037 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 16:01:36,038 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 16:01:36,038 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 16:01:36,038 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 16:01:36,038 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 16:01:36,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 16:01:36,039 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 16:01:36,039 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 16:01:36,039 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 16:01:36,039 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 16:01:36,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 16:01:36,040 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 16:01:36,040 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 16:01:36,040 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 16:01:36,040 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 16:01:36,040 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0578c41b95f42d85ac77fb0006dcba936c74afd1d4a8fb3392e12544fff9b4d0 [2021-12-17 16:01:36,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 16:01:36,344 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 16:01:36,347 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 16:01:36,348 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 16:01:36,349 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 16:01:36,350 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M1-2.c [2021-12-17 16:01:36,435 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c82cc7255/a26a468177344815884af9c0ca8d5fd6/FLAGefb88271f [2021-12-17 16:01:36,980 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 16:01:36,980 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M1-2.c [2021-12-17 16:01:37,006 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c82cc7255/a26a468177344815884af9c0ca8d5fd6/FLAGefb88271f [2021-12-17 16:01:37,204 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c82cc7255/a26a468177344815884af9c0ca8d5fd6 [2021-12-17 16:01:37,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 16:01:37,209 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 16:01:37,210 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 16:01:37,211 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 16:01:37,215 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 16:01:37,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 04:01:37" (1/1) ... [2021-12-17 16:01:37,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19cd59f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:01:37, skipping insertion in model container [2021-12-17 16:01:37,216 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 04:01:37" (1/1) ... [2021-12-17 16:01:37,221 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 16:01:37,287 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 16:01:37,462 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.1.M1-2.c[1719,1732] [2021-12-17 16:01:37,836 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 16:01:37,859 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 16:01:37,876 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.1.M1-2.c[1719,1732] [2021-12-17 16:01:38,074 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 16:01:38,119 INFO L208 MainTranslator]: Completed translation [2021-12-17 16:01:38,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:01:38 WrapperNode [2021-12-17 16:01:38,120 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 16:01:38,122 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 16:01:38,122 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 16:01:38,122 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 16:01:38,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:01:38" (1/1) ... [2021-12-17 16:01:38,207 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:01:38" (1/1) ... [2021-12-17 16:01:38,408 INFO L137 Inliner]: procedures = 58, calls = 3129, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 5929 [2021-12-17 16:01:38,419 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 16:01:38,420 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 16:01:38,420 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 16:01:38,420 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 16:01:38,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:01:38" (1/1) ... [2021-12-17 16:01:38,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:01:38" (1/1) ... [2021-12-17 16:01:38,469 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:01:38" (1/1) ... [2021-12-17 16:01:38,471 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:01:38" (1/1) ... [2021-12-17 16:01:38,609 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:01:38" (1/1) ... [2021-12-17 16:01:38,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:01:38" (1/1) ... [2021-12-17 16:01:38,654 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:01:38" (1/1) ... [2021-12-17 16:01:38,682 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 16:01:38,685 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 16:01:38,686 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 16:01:38,686 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 16:01:38,687 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:01:38" (1/1) ... [2021-12-17 16:01:38,695 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 16:01:38,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 16:01:38,725 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) [2021-12-17 16:01:38,747 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 [2021-12-17 16:01:38,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 16:01:38,768 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2021-12-17 16:01:38,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2021-12-17 16:01:38,769 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-12-17 16:01:38,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-12-17 16:01:38,769 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2021-12-17 16:01:38,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2021-12-17 16:01:38,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-17 16:01:38,769 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-12-17 16:01:38,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-12-17 16:01:38,770 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-12-17 16:01:38,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-12-17 16:01:38,770 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2021-12-17 16:01:38,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2021-12-17 16:01:38,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-17 16:01:38,770 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-12-17 16:01:38,771 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-12-17 16:01:38,771 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2021-12-17 16:01:38,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2021-12-17 16:01:38,771 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2021-12-17 16:01:38,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2021-12-17 16:01:38,772 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2021-12-17 16:01:38,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2021-12-17 16:01:38,772 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2021-12-17 16:01:38,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2021-12-17 16:01:38,773 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2021-12-17 16:01:38,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2021-12-17 16:01:38,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-17 16:01:38,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-17 16:01:38,773 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-12-17 16:01:38,773 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-12-17 16:01:38,774 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2021-12-17 16:01:38,774 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2021-12-17 16:01:38,774 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2021-12-17 16:01:38,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2021-12-17 16:01:38,774 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2021-12-17 16:01:38,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2021-12-17 16:01:38,775 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-17 16:01:38,775 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-17 16:01:38,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 16:01:38,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 16:01:38,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 16:01:38,775 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2021-12-17 16:01:38,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2021-12-17 16:01:38,776 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-12-17 16:01:38,776 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-12-17 16:01:38,776 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2021-12-17 16:01:38,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2021-12-17 16:01:38,776 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2021-12-17 16:01:38,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2021-12-17 16:01:39,410 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 16:01:39,412 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 16:01:47,369 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 16:01:47,387 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 16:01:47,388 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-17 16:01:47,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 04:01:47 BoogieIcfgContainer [2021-12-17 16:01:47,393 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 16:01:47,395 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 16:01:47,395 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 16:01:47,398 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 16:01:47,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 04:01:37" (1/3) ... [2021-12-17 16:01:47,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bd02b2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 04:01:47, skipping insertion in model container [2021-12-17 16:01:47,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:01:38" (2/3) ... [2021-12-17 16:01:47,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bd02b2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 04:01:47, skipping insertion in model container [2021-12-17 16:01:47,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 04:01:47" (3/3) ... [2021-12-17 16:01:47,401 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_aso.1.M1-2.c [2021-12-17 16:01:47,406 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 16:01:47,407 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 16:01:47,458 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 16:01:47,464 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 [2021-12-17 16:01:47,465 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 16:01:47,525 INFO L276 IsEmpty]: Start isEmpty. Operand has 2333 states, 1372 states have (on average 1.1989795918367347) internal successors, (1645), 1377 states have internal predecessors, (1645), 938 states have call successors, (938), 21 states have call predecessors, (938), 21 states have return successors, (938), 936 states have call predecessors, (938), 938 states have call successors, (938) [2021-12-17 16:01:47,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1337 [2021-12-17 16:01:47,651 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 16:01:47,652 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] [2021-12-17 16:01:47,653 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 16:01:47,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 16:01:47,659 INFO L85 PathProgramCache]: Analyzing trace with hash -662020641, now seen corresponding path program 1 times [2021-12-17 16:01:47,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 16:01:47,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852972002] [2021-12-17 16:01:47,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 16:01:47,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms