/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/rekh_nxt.2.M4-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 15:40:17,506 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 15:40:17,510 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 15:40:17,565 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 15:40:17,565 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 15:40:17,569 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 15:40:17,595 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 15:40:17,604 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 15:40:17,607 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 15:40:17,613 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 15:40:17,614 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 15:40:17,617 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 15:40:17,617 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 15:40:17,620 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 15:40:17,622 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 15:40:17,627 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 15:40:17,629 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 15:40:17,630 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 15:40:17,633 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 15:40:17,642 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 15:40:17,644 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 15:40:17,645 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 15:40:17,648 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 15:40:17,649 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 15:40:17,658 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 15:40:17,659 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 15:40:17,659 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 15:40:17,661 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 15:40:17,662 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 15:40:17,663 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 15:40:17,663 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 15:40:17,664 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 15:40:17,666 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 15:40:17,666 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 15:40:17,668 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 15:40:17,668 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 15:40:17,669 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 15:40:17,669 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 15:40:17,669 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 15:40:17,671 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 15:40:17,671 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 15:40:17,676 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 15:40:17,729 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 15:40:17,729 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 15:40:17,730 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 15:40:17,730 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 15:40:17,731 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 15:40:17,732 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 15:40:17,734 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 15:40:17,735 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 15:40:17,735 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 15:40:17,735 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 15:40:17,736 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 15:40:17,736 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 15:40:17,737 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 15:40:17,737 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 15:40:17,737 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 15:40:17,737 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 15:40:17,737 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 15:40:17,738 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 15:40:17,738 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 15:40:17,738 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 15:40:17,738 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 15:40:17,739 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 15:40:17,739 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 15:40:17,739 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 15:40:17,739 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 15:40:17,739 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 15:40:17,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 15:40:17,740 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 15:40:17,740 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 15:40:17,740 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 15:40:17,741 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 15:40:17,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 15:40:17,741 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 15:40:17,741 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 15:40:18,149 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 15:40:18,172 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 15:40:18,175 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 15:40:18,176 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 15:40:18,177 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 15:40:18,178 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_nxt.2.M4-1.c [2022-10-16 15:40:18,266 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8770b1d8/f91ec56263a84cad88c55df1831afffe/FLAG54811f621 [2022-10-16 15:40:19,014 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 15:40:19,016 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_nxt.2.M4-1.c [2022-10-16 15:40:19,049 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8770b1d8/f91ec56263a84cad88c55df1831afffe/FLAG54811f621 [2022-10-16 15:40:19,277 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8770b1d8/f91ec56263a84cad88c55df1831afffe [2022-10-16 15:40:19,280 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 15:40:19,287 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 15:40:19,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 15:40:19,292 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 15:40:19,296 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 15:40:19,297 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:40:19" (1/1) ... [2022-10-16 15:40:19,298 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ef51e32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:40:19, skipping insertion in model container [2022-10-16 15:40:19,299 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:40:19" (1/1) ... [2022-10-16 15:40:19,307 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 15:40:19,401 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 15:40:19,659 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_nxt.2.M4-1.c[1682,1695] [2022-10-16 15:40:20,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 15:40:20,181 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 15:40:20,212 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_nxt.2.M4-1.c[1682,1695] [2022-10-16 15:40:20,451 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 15:40:20,478 INFO L208 MainTranslator]: Completed translation [2022-10-16 15:40:20,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:40:20 WrapperNode [2022-10-16 15:40:20,479 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 15:40:20,480 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 15:40:20,480 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 15:40:20,480 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 15:40:20,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:40:20" (1/1) ... [2022-10-16 15:40:20,584 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:40:20" (1/1) ... [2022-10-16 15:40:20,812 INFO L138 Inliner]: procedures = 56, calls = 2072, calls flagged for inlining = 21, calls inlined = 21, statements flattened = 4044 [2022-10-16 15:40:20,813 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 15:40:20,814 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 15:40:20,814 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 15:40:20,814 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 15:40:20,825 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:40:20" (1/1) ... [2022-10-16 15:40:20,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:40:20" (1/1) ... [2022-10-16 15:40:20,864 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:40:20" (1/1) ... [2022-10-16 15:40:20,865 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:40:20" (1/1) ... [2022-10-16 15:40:21,000 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:40:20" (1/1) ... [2022-10-16 15:40:21,017 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:40:20" (1/1) ... [2022-10-16 15:40:21,034 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:40:20" (1/1) ... [2022-10-16 15:40:21,053 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:40:20" (1/1) ... [2022-10-16 15:40:21,145 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 15:40:21,149 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 15:40:21,150 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 15:40:21,150 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 15:40:21,151 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:40:20" (1/1) ... [2022-10-16 15:40:21,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 15:40:21,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:40:21,198 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 15:40:21,215 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 [2022-10-16 15:40:21,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 15:40:21,267 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-10-16 15:40:21,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-10-16 15:40:21,267 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-10-16 15:40:21,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-10-16 15:40:21,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 15:40:21,267 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-10-16 15:40:21,269 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-10-16 15:40:21,269 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-10-16 15:40:21,270 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-10-16 15:40:21,270 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-10-16 15:40:21,270 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-10-16 15:40:21,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 15:40:21,270 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-10-16 15:40:21,270 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-10-16 15:40:21,270 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-10-16 15:40:21,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-10-16 15:40:21,271 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-10-16 15:40:21,271 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-10-16 15:40:21,271 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-10-16 15:40:21,271 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-10-16 15:40:21,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 15:40:21,271 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-10-16 15:40:21,271 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-10-16 15:40:21,272 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2022-10-16 15:40:21,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2022-10-16 15:40:21,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 15:40:21,272 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-10-16 15:40:21,272 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-10-16 15:40:21,272 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-10-16 15:40:21,272 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-10-16 15:40:21,272 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-16 15:40:21,273 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-16 15:40:21,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 15:40:21,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 15:40:21,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 15:40:21,273 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-10-16 15:40:21,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-10-16 15:40:21,274 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-10-16 15:40:21,274 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-10-16 15:40:21,274 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-10-16 15:40:21,274 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-10-16 15:40:21,812 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 15:40:21,814 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 15:40:30,227 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 15:40:30,255 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 15:40:30,256 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 15:40:30,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:40:30 BoogieIcfgContainer [2022-10-16 15:40:30,261 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 15:40:30,265 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 15:40:30,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 15:40:30,269 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 15:40:30,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:40:19" (1/3) ... [2022-10-16 15:40:30,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a75a8aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:40:30, skipping insertion in model container [2022-10-16 15:40:30,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:40:20" (2/3) ... [2022-10-16 15:40:30,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a75a8aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:40:30, skipping insertion in model container [2022-10-16 15:40:30,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:40:30" (3/3) ... [2022-10-16 15:40:30,274 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_nxt.2.M4-1.c [2022-10-16 15:40:30,296 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 15:40:30,297 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-10-16 15:40:30,419 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 15:40:30,428 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;@149d4554, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 15:40:30,429 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-10-16 15:40:30,441 INFO L276 IsEmpty]: Start isEmpty. Operand has 1684 states, 1014 states have (on average 1.2337278106508875) internal successors, (1251), 1030 states have internal predecessors, (1251), 640 states have call successors, (640), 17 states have call predecessors, (640), 17 states have return successors, (640), 638 states have call predecessors, (640), 640 states have call successors, (640) [2022-10-16 15:40:30,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1291 [2022-10-16 15:40:30,557 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:40:30,560 INFO L195 NwaCegarLoop]: trace histogram [208, 208, 208, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:30,560 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __startrek_entry_pt_OSEK_Task_ts1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__startrek_entry_pt_OSEK_Task_ts1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, __startrek_entry_pt_OSEK_Task_ts1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-10-16 15:40:30,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:40:30,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1029758828, now seen corresponding path program 1 times [2022-10-16 15:40:30,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:40:30,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807128853] [2022-10-16 15:40:30,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:40:30,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms