/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/rekh_nxt.2.M4-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 01:23:26,868 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 01:23:26,870 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 01:23:26,926 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 01:23:26,926 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 01:23:26,930 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 01:23:26,933 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 01:23:26,943 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 01:23:26,945 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 01:23:26,946 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 01:23:26,947 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 01:23:26,947 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 01:23:26,948 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 01:23:26,949 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 01:23:26,949 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 01:23:26,950 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 01:23:26,951 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 01:23:26,952 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 01:23:26,953 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 01:23:26,954 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 01:23:26,959 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 01:23:26,966 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 01:23:26,969 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 01:23:26,971 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 01:23:26,980 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 01:23:26,980 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 01:23:26,980 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 01:23:26,982 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 01:23:26,983 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 01:23:26,983 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 01:23:26,984 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 01:23:26,985 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 01:23:26,986 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 01:23:26,987 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 01:23:26,988 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 01:23:26,988 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 01:23:26,989 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 01:23:26,989 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 01:23:26,989 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 01:23:26,990 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 01:23:26,990 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 01:23:26,991 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf [2022-01-10 01:23:27,027 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 01:23:27,027 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 01:23:27,027 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 01:23:27,027 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 01:23:27,028 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 01:23:27,028 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 01:23:27,029 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 01:23:27,029 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 01:23:27,029 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 01:23:27,029 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 01:23:27,029 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 01:23:27,029 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 01:23:27,029 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 01:23:27,029 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 01:23:27,030 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 01:23:27,030 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 01:23:27,030 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 01:23:27,030 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 01:23:27,030 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 01:23:27,030 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 01:23:27,030 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 01:23:27,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 01:23:27,031 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 01:23:27,031 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 01:23:27,033 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 01:23:27,033 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 01:23:27,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 01:23:27,033 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 01:23:27,034 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 01:23:27,034 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 01:23:27,034 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 01:23:27,233 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 01:23:27,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 01:23:27,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 01:23:27,255 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 01:23:27,263 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 01:23:27,266 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/rekh_nxt.2.M4-2.c [2022-01-10 01:23:27,336 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acf56378b/9e9ac22ca69d40bbbfa654580e4e0b88/FLAGd4bdf360f [2022-01-10 01:23:27,867 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 01:23:27,867 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/rekh_nxt.2.M4-2.c [2022-01-10 01:23:27,894 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acf56378b/9e9ac22ca69d40bbbfa654580e4e0b88/FLAGd4bdf360f [2022-01-10 01:23:28,348 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acf56378b/9e9ac22ca69d40bbbfa654580e4e0b88 [2022-01-10 01:23:28,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 01:23:28,353 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 01:23:28,356 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 01:23:28,356 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 01:23:28,359 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 01:23:28,360 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:23:28" (1/1) ... [2022-01-10 01:23:28,362 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e68f023 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:23:28, skipping insertion in model container [2022-01-10 01:23:28,362 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:23:28" (1/1) ... [2022-01-10 01:23:28,386 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 01:23:28,446 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 01:23:28,612 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/rekh_nxt.2.M4-2.c[1765,1778] [2022-01-10 01:23:28,973 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 01:23:28,987 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 01:23:28,999 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/rekh_nxt.2.M4-2.c[1765,1778] [2022-01-10 01:23:29,222 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 01:23:29,262 INFO L208 MainTranslator]: Completed translation [2022-01-10 01:23:29,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:23:29 WrapperNode [2022-01-10 01:23:29,264 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 01:23:29,265 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 01:23:29,266 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 01:23:29,266 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 01:23:29,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:23:29" (1/1) ... [2022-01-10 01:23:29,334 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:23:29" (1/1) ... [2022-01-10 01:23:29,535 INFO L137 Inliner]: procedures = 60, calls = 2813, calls flagged for inlining = 21, calls inlined = 21, statements flattened = 5074 [2022-01-10 01:23:29,535 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 01:23:29,536 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 01:23:29,536 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 01:23:29,536 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 01:23:29,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:23:29" (1/1) ... [2022-01-10 01:23:29,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:23:29" (1/1) ... [2022-01-10 01:23:29,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:23:29" (1/1) ... [2022-01-10 01:23:29,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:23:29" (1/1) ... [2022-01-10 01:23:29,669 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:23:29" (1/1) ... [2022-01-10 01:23:29,694 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:23:29" (1/1) ... [2022-01-10 01:23:29,713 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:23:29" (1/1) ... [2022-01-10 01:23:29,742 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 01:23:29,744 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 01:23:29,744 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 01:23:29,744 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 01:23:29,746 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:23:29" (1/1) ... [2022-01-10 01:23:29,752 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 01:23:29,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 01:23:29,778 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) [2022-01-10 01:23:29,843 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 [2022-01-10 01:23:29,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 01:23:29,871 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-01-10 01:23:29,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-01-10 01:23:29,871 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-01-10 01:23:29,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-01-10 01:23:29,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-10 01:23:29,871 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-01-10 01:23:29,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-01-10 01:23:29,872 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-01-10 01:23:29,872 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-01-10 01:23:29,872 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_observer_obstacle_flag [2022-01-10 01:23:29,872 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_observer_obstacle_flag [2022-01-10 01:23:29,872 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-01-10 01:23:29,872 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-01-10 01:23:29,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-10 01:23:29,872 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-01-10 01:23:29,872 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-01-10 01:23:29,872 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-01-10 01:23:29,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-01-10 01:23:29,873 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-01-10 01:23:29,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-01-10 01:23:29,873 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-01-10 01:23:29,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-01-10 01:23:29,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-10 01:23:29,873 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-01-10 01:23:29,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-01-10 01:23:29,873 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2022-01-10 01:23:29,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2022-01-10 01:23:29,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-10 01:23:29,873 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-01-10 01:23:29,874 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-01-10 01:23:29,874 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-01-10 01:23:29,874 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-01-10 01:23:29,874 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-01-10 01:23:29,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-01-10 01:23:29,874 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-01-10 01:23:29,874 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-01-10 01:23:29,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-10 01:23:29,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 01:23:29,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 01:23:29,874 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-01-10 01:23:29,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-01-10 01:23:29,875 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-01-10 01:23:29,875 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-01-10 01:23:29,875 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-01-10 01:23:29,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-01-10 01:23:30,389 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 01:23:30,391 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 01:23:37,896 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 01:23:37,912 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 01:23:37,912 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 01:23:37,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:23:37 BoogieIcfgContainer [2022-01-10 01:23:37,915 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 01:23:37,917 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 01:23:37,917 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 01:23:37,920 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 01:23:37,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 01:23:28" (1/3) ... [2022-01-10 01:23:37,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e2742fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:23:37, skipping insertion in model container [2022-01-10 01:23:37,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:23:29" (2/3) ... [2022-01-10 01:23:37,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e2742fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:23:37, skipping insertion in model container [2022-01-10 01:23:37,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:23:37" (3/3) ... [2022-01-10 01:23:37,923 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_nxt.2.M4-2.c [2022-01-10 01:23:37,928 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 01:23:37,928 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 01:23:37,978 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 01:23:37,984 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 [2022-01-10 01:23:37,984 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 01:23:38,046 INFO L276 IsEmpty]: Start isEmpty. Operand has 1944 states, 1149 states have (on average 1.2027850304612706) internal successors, (1382), 1154 states have internal predecessors, (1382), 774 states have call successors, (774), 19 states have call predecessors, (774), 19 states have return successors, (774), 772 states have call predecessors, (774), 774 states have call successors, (774) [2022-01-10 01:23:38,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1311 [2022-01-10 01:23:38,108 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:23:38,110 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] [2022-01-10 01:23:38,110 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 01:23:38,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:23:38,115 INFO L85 PathProgramCache]: Analyzing trace with hash 502494177, now seen corresponding path program 1 times [2022-01-10 01:23:38,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:23:38,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632634717] [2022-01-10 01:23:38,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:23:38,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms