/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded/rekcba_aso.4.M1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 15:30:58,650 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 15:30:58,654 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 15:30:58,690 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 15:30:58,690 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 15:30:58,692 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 15:30:58,707 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 15:30:58,709 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 15:30:58,711 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 15:30:58,714 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 15:30:58,715 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 15:30:58,717 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 15:30:58,717 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 15:30:58,720 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 15:30:58,723 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 15:30:58,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 15:30:58,728 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 15:30:58,733 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 15:30:58,738 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 15:30:58,742 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 15:30:58,748 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 15:30:58,750 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 15:30:58,751 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 15:30:58,755 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 15:30:58,768 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 15:30:58,769 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 15:30:58,769 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 15:30:58,773 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 15:30:58,773 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 15:30:58,774 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 15:30:58,776 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 15:30:58,777 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 15:30:58,778 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 15:30:58,779 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 15:30:58,780 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 15:30:58,780 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 15:30:58,782 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 15:30:58,783 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 15:30:58,783 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 15:30:58,784 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 15:30:58,785 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 15:30:58,786 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 15:30:58,845 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 15:30:58,845 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 15:30:58,846 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 15:30:58,846 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 15:30:58,848 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 15:30:58,849 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 15:30:58,851 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 15:30:58,852 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 15:30:58,852 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 15:30:58,852 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 15:30:58,853 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 15:30:58,854 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 15:30:58,854 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 15:30:58,854 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 15:30:58,854 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 15:30:58,854 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 15:30:58,854 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 15:30:58,855 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 15:30:58,855 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 15:30:58,855 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 15:30:58,855 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 15:30:58,855 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 15:30:58,856 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 15:30:58,856 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 15:30:58,856 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 15:30:58,856 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 15:30:58,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 15:30:58,857 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 15:30:58,857 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 15:30:58,857 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 15:30:58,857 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 15:30:58,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 15:30:58,858 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 15:30:58,858 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 15:30:59,266 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 15:30:59,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 15:30:59,298 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 15:30:59,300 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 15:30:59,300 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 15:30:59,302 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_aso.4.M1.c [2022-10-16 15:30:59,391 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cfd24405/143c1e8630cf4249af529941ffa6d7f8/FLAG7a46034e2 [2022-10-16 15:31:00,312 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 15:31:00,313 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_aso.4.M1.c [2022-10-16 15:31:00,338 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cfd24405/143c1e8630cf4249af529941ffa6d7f8/FLAG7a46034e2 [2022-10-16 15:31:00,412 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cfd24405/143c1e8630cf4249af529941ffa6d7f8 [2022-10-16 15:31:00,416 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 15:31:00,422 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 15:31:00,425 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 15:31:00,426 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 15:31:00,431 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 15:31:00,432 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:31:00" (1/1) ... [2022-10-16 15:31:00,433 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61f335dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:31:00, skipping insertion in model container [2022-10-16 15:31:00,433 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:31:00" (1/1) ... [2022-10-16 15:31:00,442 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 15:31:00,515 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 15:31:00,721 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_aso.4.M1.c[2061,2074] [2022-10-16 15:31:01,394 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 15:31:01,428 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 15:31:01,459 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_aso.4.M1.c[2061,2074] [2022-10-16 15:31:01,715 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 15:31:01,750 INFO L208 MainTranslator]: Completed translation [2022-10-16 15:31:01,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:31:01 WrapperNode [2022-10-16 15:31:01,751 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 15:31:01,752 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 15:31:01,753 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 15:31:01,753 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 15:31:01,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:31:01" (1/1) ... [2022-10-16 15:31:01,839 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:31:01" (1/1) ... [2022-10-16 15:31:02,162 INFO L138 Inliner]: procedures = 72, calls = 2680, calls flagged for inlining = 29, calls inlined = 29, statements flattened = 5721 [2022-10-16 15:31:02,163 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 15:31:02,166 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 15:31:02,166 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 15:31:02,166 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 15:31:02,178 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:31:01" (1/1) ... [2022-10-16 15:31:02,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:31:01" (1/1) ... [2022-10-16 15:31:02,258 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:31:01" (1/1) ... [2022-10-16 15:31:02,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:31:01" (1/1) ... [2022-10-16 15:31:02,477 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:31:01" (1/1) ... [2022-10-16 15:31:02,500 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:31:01" (1/1) ... [2022-10-16 15:31:02,532 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:31:01" (1/1) ... [2022-10-16 15:31:02,553 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:31:01" (1/1) ... [2022-10-16 15:31:02,602 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 15:31:02,603 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 15:31:02,603 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 15:31:02,604 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 15:31:02,605 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:31:01" (1/1) ... [2022-10-16 15:31:02,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 15:31:02,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:31:02,646 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) [2022-10-16 15:31:02,662 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 [2022-10-16 15:31:02,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 15:31:02,732 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-10-16 15:31:02,733 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-10-16 15:31:02,733 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-10-16 15:31:02,734 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-10-16 15:31:02,734 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-10-16 15:31:02,734 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-10-16 15:31:02,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 15:31:02,736 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-10-16 15:31:02,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-10-16 15:31:02,737 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-10-16 15:31:02,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-10-16 15:31:02,737 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-10-16 15:31:02,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-10-16 15:31:02,737 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-10-16 15:31:02,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-10-16 15:31:02,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 15:31:02,738 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-10-16 15:31:02,738 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-10-16 15:31:02,738 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-10-16 15:31:02,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-10-16 15:31:02,739 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-10-16 15:31:02,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-10-16 15:31:02,739 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-10-16 15:31:02,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-10-16 15:31:02,771 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-10-16 15:31:02,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-10-16 15:31:02,772 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-10-16 15:31:02,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-10-16 15:31:02,772 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-10-16 15:31:02,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-10-16 15:31:02,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 15:31:02,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 15:31:02,773 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-10-16 15:31:02,773 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-10-16 15:31:02,773 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-10-16 15:31:02,773 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-10-16 15:31:02,773 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-10-16 15:31:02,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-10-16 15:31:02,773 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-10-16 15:31:02,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-10-16 15:31:02,774 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-16 15:31:02,774 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-16 15:31:02,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 15:31:02,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 15:31:02,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 15:31:02,775 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-10-16 15:31:02,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-10-16 15:31:02,775 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-10-16 15:31:02,776 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-10-16 15:31:02,776 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-10-16 15:31:02,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-10-16 15:31:02,777 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-10-16 15:31:02,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-10-16 15:31:03,377 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 15:31:03,380 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 15:31:15,551 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 15:31:15,578 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 15:31:15,580 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 15:31:15,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:31:15 BoogieIcfgContainer [2022-10-16 15:31:15,588 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 15:31:15,592 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 15:31:15,592 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 15:31:15,597 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 15:31:15,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:31:00" (1/3) ... [2022-10-16 15:31:15,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eae7947 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:31:15, skipping insertion in model container [2022-10-16 15:31:15,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:31:01" (2/3) ... [2022-10-16 15:31:15,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eae7947 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:31:15, skipping insertion in model container [2022-10-16 15:31:15,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:31:15" (3/3) ... [2022-10-16 15:31:15,602 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_aso.4.M1.c [2022-10-16 15:31:15,630 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 15:31:15,630 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 64 error locations. [2022-10-16 15:31:15,770 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 15:31:15,780 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4008e36b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 15:31:15,780 INFO L358 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2022-10-16 15:31:15,795 INFO L276 IsEmpty]: Start isEmpty. Operand has 1764 states, 1081 states have (on average 1.299722479185939) internal successors, (1405), 1175 states have internal predecessors, (1405), 595 states have call successors, (595), 23 states have call predecessors, (595), 23 states have return successors, (595), 593 states have call predecessors, (595), 595 states have call successors, (595) [2022-10-16 15:31:15,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-10-16 15:31:15,808 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:31:15,809 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:31:15,809 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__startrek_entry_pt_OSEK_Task_ts1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, __startrek_entry_pt_OSEK_Task_ts1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2022-10-16 15:31:15,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:31:15,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1042389356, now seen corresponding path program 1 times [2022-10-16 15:31:15,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:31:15,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946094783] [2022-10-16 15:31:15,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:31:15,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:31:16,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:31:16,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 15:31:16,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:31:16,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 15:31:16,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:31:16,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 15:31:16,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:31:16,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 15:31:16,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:31:16,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 15:31:16,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:31:16,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 15:31:16,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:31:16,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 15:31:16,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:31:16,727 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-10-16 15:31:16,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:31:16,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946094783] [2022-10-16 15:31:16,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946094783] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 15:31:16,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 15:31:16,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 15:31:16,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141823853] [2022-10-16 15:31:16,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 15:31:16,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 15:31:16,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 15:31:16,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 15:31:16,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 15:31:16,796 INFO L87 Difference]: Start difference. First operand has 1764 states, 1081 states have (on average 1.299722479185939) internal successors, (1405), 1175 states have internal predecessors, (1405), 595 states have call successors, (595), 23 states have call predecessors, (595), 23 states have return successors, (595), 593 states have call predecessors, (595), 595 states have call successors, (595) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-16 15:31:17,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:31:17,109 INFO L93 Difference]: Finished difference Result 3473 states and 5751 transitions. [2022-10-16 15:31:17,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 15:31:17,116 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) Word has length 47 [2022-10-16 15:31:17,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:31:17,173 INFO L225 Difference]: With dead ends: 3473 [2022-10-16 15:31:17,173 INFO L226 Difference]: Without dead ends: 1228 [2022-10-16 15:31:17,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 15:31:17,218 INFO L413 NwaCegarLoop]: 2542 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2542 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 15:31:17,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2542 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 15:31:17,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1228 states. [2022-10-16 15:31:17,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1228 to 1228. [2022-10-16 15:31:17,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1228 states, 833 states have (on average 1.3229291716686675) internal successors, (1102), 876 states have internal predecessors, (1102), 359 states have call successors, (359), 22 states have call predecessors, (359), 22 states have return successors, (358), 356 states have call predecessors, (358), 358 states have call successors, (358) [2022-10-16 15:31:17,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1228 states to 1228 states and 1819 transitions. [2022-10-16 15:31:17,633 INFO L78 Accepts]: Start accepts. Automaton has 1228 states and 1819 transitions. Word has length 47 [2022-10-16 15:31:17,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:31:17,633 INFO L495 AbstractCegarLoop]: Abstraction has 1228 states and 1819 transitions. [2022-10-16 15:31:17,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-16 15:31:17,634 INFO L276 IsEmpty]: Start isEmpty. Operand 1228 states and 1819 transitions. [2022-10-16 15:31:17,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2022-10-16 15:31:17,673 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:31:17,674 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:31:17,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 15:31:17,675 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __startrek_entry_pt_OSEK_Task_ts3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__startrek_entry_pt_OSEK_Task_ts1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, __startrek_entry_pt_OSEK_Task_ts1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 62 more)] === [2022-10-16 15:31:17,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:31:17,678 INFO L85 PathProgramCache]: Analyzing trace with hash -417690806, now seen corresponding path program 1 times [2022-10-16 15:31:17,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:31:17,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187551776] [2022-10-16 15:31:17,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:31:17,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms