/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-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 17:27:30,550 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 17:27:30,553 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 17:27:30,592 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 17:27:30,593 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 17:27:30,594 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 17:27:30,596 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 17:27:30,599 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 17:27:30,604 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 17:27:30,606 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 17:27:30,610 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 17:27:30,614 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 17:27:30,615 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 17:27:30,616 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 17:27:30,624 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 17:27:30,650 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 17:27:30,651 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 17:27:30,652 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 17:27:30,658 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 17:27:30,661 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 17:27:30,671 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 17:27:30,674 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 17:27:30,676 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 17:27:30,679 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 17:27:30,692 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 17:27:30,692 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 17:27:30,693 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 17:27:30,696 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 17:27:30,697 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 17:27:30,698 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 17:27:30,699 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 17:27:30,700 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 17:27:30,702 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 17:27:30,704 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 17:27:30,705 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 17:27:30,706 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 17:27:30,707 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 17:27:30,707 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 17:27:30,707 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 17:27:30,709 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 17:27:30,710 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 17:27:30,711 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-10-15 17:27:30,759 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 17:27:30,760 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 17:27:30,760 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 17:27:30,760 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 17:27:30,761 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 17:27:30,762 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 17:27:30,762 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 17:27:30,763 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 17:27:30,763 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 17:27:30,763 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 17:27:30,763 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 17:27:30,764 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 17:27:30,764 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 17:27:30,764 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 17:27:30,764 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 17:27:30,765 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 17:27:30,765 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 17:27:30,765 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 17:27:30,765 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 17:27:30,765 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 17:27:30,766 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 17:27:30,766 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 17:27:30,766 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 17:27:30,766 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 17:27:30,767 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 17:27:30,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:27:30,767 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 17:27:30,767 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 17:27:30,768 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 17:27:30,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 17:27:30,768 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 17:27:31,234 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 17:27:31,268 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 17:27:31,272 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 17:27:31,273 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 17:27:31,274 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 17:27:31,276 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-2.c [2022-10-15 17:27:31,363 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37a676501/f3e7fa735f7b4621be66ec9adf5f51cc/FLAGa928757be [2022-10-15 17:27:32,416 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 17:27:32,417 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-2.c [2022-10-15 17:27:32,465 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37a676501/f3e7fa735f7b4621be66ec9adf5f51cc/FLAGa928757be [2022-10-15 17:27:32,973 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37a676501/f3e7fa735f7b4621be66ec9adf5f51cc [2022-10-15 17:27:32,977 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 17:27:32,986 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 17:27:32,992 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 17:27:32,992 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 17:27:33,001 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 17:27:33,002 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:27:32" (1/1) ... [2022-10-15 17:27:33,004 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@616e0190 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:27:33, skipping insertion in model container [2022-10-15 17:27:33,005 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:27:32" (1/1) ... [2022-10-15 17:27:33,013 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 17:27:33,165 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 17:27:33,510 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-2.c[1807,1820] [2022-10-15 17:27:34,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:27:34,341 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 17:27:34,359 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-2.c[1807,1820] [2022-10-15 17:27:34,798 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:27:34,829 INFO L208 MainTranslator]: Completed translation [2022-10-15 17:27:34,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:27:34 WrapperNode [2022-10-15 17:27:34,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 17:27:34,831 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 17:27:34,831 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 17:27:34,831 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 17:27:34,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:27:34" (1/1) ... [2022-10-15 17:27:34,941 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:27:34" (1/1) ... [2022-10-15 17:27:35,464 INFO L138 Inliner]: procedures = 70, calls = 5237, calls flagged for inlining = 25, calls inlined = 25, statements flattened = 9803 [2022-10-15 17:27:35,465 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 17:27:35,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 17:27:35,466 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 17:27:35,466 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 17:27:35,478 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:27:34" (1/1) ... [2022-10-15 17:27:35,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:27:34" (1/1) ... [2022-10-15 17:27:35,620 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:27:34" (1/1) ... [2022-10-15 17:27:35,621 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:27:34" (1/1) ... [2022-10-15 17:27:35,951 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:27:34" (1/1) ... [2022-10-15 17:27:35,993 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:27:34" (1/1) ... [2022-10-15 17:27:36,040 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:27:34" (1/1) ... [2022-10-15 17:27:36,070 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:27:34" (1/1) ... [2022-10-15 17:27:36,139 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 17:27:36,141 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 17:27:36,141 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 17:27:36,142 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 17:27:36,143 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:27:34" (1/1) ... [2022-10-15 17:27:36,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:27:36,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:27:36,192 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) [2022-10-15 17:27:36,215 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 [2022-10-15 17:27:36,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 17:27:36,281 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_trans [2022-10-15 17:27:36,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_trans [2022-10-15 17:27:36,281 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-10-15 17:27:36,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-10-15 17:27:36,282 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-10-15 17:27:36,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-10-15 17:27:36,283 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-10-15 17:27:36,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-10-15 17:27:36,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 17:27:36,284 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-10-15 17:27:36,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-10-15 17:27:36,284 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-10-15 17:27:36,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-10-15 17:27:36,284 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-10-15 17:27:36,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-10-15 17:27:36,285 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-10-15 17:27:36,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-10-15 17:27:36,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 17:27:36,285 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-10-15 17:27:36,285 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-10-15 17:27:36,285 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-10-15 17:27:36,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-10-15 17:27:36,286 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-10-15 17:27:36,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-10-15 17:27:36,286 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-10-15 17:27:36,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-10-15 17:27:36,287 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-10-15 17:27:36,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-10-15 17:27:36,287 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-10-15 17:27:36,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-10-15 17:27:36,288 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-10-15 17:27:36,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-10-15 17:27:36,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 17:27:36,288 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-10-15 17:27:36,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-10-15 17:27:36,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 17:27:36,289 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-10-15 17:27:36,358 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-10-15 17:27:36,358 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-10-15 17:27:36,358 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-10-15 17:27:36,358 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-10-15 17:27:36,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-10-15 17:27:36,359 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-10-15 17:27:36,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-10-15 17:27:36,359 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-15 17:27:36,359 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-15 17:27:36,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 17:27:36,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 17:27:36,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 17:27:36,360 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-10-15 17:27:36,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-10-15 17:27:36,360 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-10-15 17:27:36,360 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-10-15 17:27:36,360 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-10-15 17:27:36,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-10-15 17:27:36,360 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-10-15 17:27:36,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-10-15 17:27:37,090 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 17:27:37,093 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 17:27:50,725 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 17:27:50,783 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 17:27:50,784 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-15 17:27:50,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:27:50 BoogieIcfgContainer [2022-10-15 17:27:50,803 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 17:27:50,806 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 17:27:50,806 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 17:27:50,811 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 17:27:50,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 05:27:32" (1/3) ... [2022-10-15 17:27:50,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77146d82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:27:50, skipping insertion in model container [2022-10-15 17:27:50,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:27:34" (2/3) ... [2022-10-15 17:27:50,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77146d82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:27:50, skipping insertion in model container [2022-10-15 17:27:50,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:27:50" (3/3) ... [2022-10-15 17:27:50,815 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_aso.2.M4-2.c [2022-10-15 17:27:50,842 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 17:27:50,844 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7324 error locations. [2022-10-15 17:27:51,109 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 17:27:51,123 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@3a0f0c55, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 17:27:51,123 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7324 error locations. [2022-10-15 17:27:51,168 INFO L276 IsEmpty]: Start isEmpty. Operand has 15067 states, 6209 states have (on average 2.233854082783057) internal successors, (13870), 13537 states have internal predecessors, (13870), 1508 states have call successors, (1508), 25 states have call predecessors, (1508), 25 states have return successors, (1508), 1506 states have call predecessors, (1508), 1508 states have call successors, (1508) [2022-10-15 17:27:51,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-10-15 17:27:51,177 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:27:51,178 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-10-15 17:27:51,179 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [__startrek_hyperperiodErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, __startrek_hyperperiodErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7322 more)] === [2022-10-15 17:27:51,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:27:51,186 INFO L85 PathProgramCache]: Analyzing trace with hash 16245547, now seen corresponding path program 1 times [2022-10-15 17:27:51,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:27:51,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911431835] [2022-10-15 17:27:51,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:27:51,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:27:51,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:27:51,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:27:51,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:27:51,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911431835] [2022-10-15 17:27:51,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911431835] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:27:51,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:27:51,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-10-15 17:27:51,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660673570] [2022-10-15 17:27:51,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:27:51,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:27:51,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:27:51,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:27:51,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:27:51,980 INFO L87 Difference]: Start difference. First operand has 15067 states, 6209 states have (on average 2.233854082783057) internal successors, (13870), 13537 states have internal predecessors, (13870), 1508 states have call successors, (1508), 25 states have call predecessors, (1508), 25 states have return successors, (1508), 1506 states have call predecessors, (1508), 1508 states have call successors, (1508) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:28:12,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:28:12,497 INFO L93 Difference]: Finished difference Result 29905 states and 33549 transitions. [2022-10-15 17:28:12,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:28:12,505 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-10-15 17:28:12,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:28:12,706 INFO L225 Difference]: With dead ends: 29905 [2022-10-15 17:28:12,706 INFO L226 Difference]: Without dead ends: 29901 [2022-10-15 17:28:12,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:28:12,714 INFO L413 NwaCegarLoop]: 20369 mSDtfsCounter, 16662 mSDsluCounter, 9383 mSDsCounter, 0 mSdLazyCounter, 14819 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16662 SdHoareTripleChecker+Valid, 29752 SdHoareTripleChecker+Invalid, 14977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 14819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.9s IncrementalHoareTripleChecker+Time [2022-10-15 17:28:12,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16662 Valid, 29752 Invalid, 14977 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [158 Valid, 14819 Invalid, 0 Unknown, 0 Unchecked, 18.9s Time] [2022-10-15 17:28:12,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29901 states. [2022-10-15 17:28:17,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29901 to 22722. [2022-10-15 17:28:17,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22722 states, 12343 states have (on average 2.221988171433201) internal successors, (27426), 19674 states have internal predecessors, (27426), 3006 states have call successors, (3006), 50 states have call predecessors, (3006), 50 states have return successors, (3034), 3000 states have call predecessors, (3034), 3006 states have call successors, (3034) [2022-10-15 17:28:17,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22722 states to 22722 states and 33466 transitions. [2022-10-15 17:28:17,449 INFO L78 Accepts]: Start accepts. Automaton has 22722 states and 33466 transitions. Word has length 3 [2022-10-15 17:28:17,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:28:17,451 INFO L495 AbstractCegarLoop]: Abstraction has 22722 states and 33466 transitions. [2022-10-15 17:28:17,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:28:17,454 INFO L276 IsEmpty]: Start isEmpty. Operand 22722 states and 33466 transitions. [2022-10-15 17:28:17,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-10-15 17:28:17,455 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:28:17,456 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-10-15 17:28:17,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 17:28:17,460 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [__startrek_hyperperiodErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, __startrek_hyperperiodErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7322 more)] === [2022-10-15 17:28:17,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:28:17,468 INFO L85 PathProgramCache]: Analyzing trace with hash 16245548, now seen corresponding path program 1 times [2022-10-15 17:28:17,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:28:17,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935157732] [2022-10-15 17:28:17,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:28:17,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:28:17,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:28:17,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:28:17,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:28:17,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935157732] [2022-10-15 17:28:17,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935157732] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:28:17,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:28:17,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-10-15 17:28:17,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391832250] [2022-10-15 17:28:17,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:28:17,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:28:17,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:28:17,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:28:17,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:28:17,778 INFO L87 Difference]: Start difference. First operand 22722 states and 33466 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)