/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.2.M1-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 22:00:45,486 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 22:00:45,490 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 22:00:45,553 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 22:00:45,554 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 22:00:45,559 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 22:00:45,564 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 22:00:45,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 22:00:45,582 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 22:00:45,588 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 22:00:45,589 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 22:00:45,592 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 22:00:45,593 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 22:00:45,596 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 22:00:45,598 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 22:00:45,612 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 22:00:45,613 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 22:00:45,615 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 22:00:45,617 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 22:00:45,619 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 22:00:45,621 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 22:00:45,623 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 22:00:45,624 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 22:00:45,625 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 22:00:45,629 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 22:00:45,630 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 22:00:45,630 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 22:00:45,631 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 22:00:45,632 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 22:00:45,633 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 22:00:45,634 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 22:00:45,635 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 22:00:45,636 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 22:00:45,637 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 22:00:45,638 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 22:00:45,638 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 22:00:45,639 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 22:00:45,640 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 22:00:45,640 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 22:00:45,641 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 22:00:45,642 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 22:00:45,644 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 [2022-10-15 22:00:45,673 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 22:00:45,674 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 22:00:45,674 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 22:00:45,674 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 22:00:45,675 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 22:00:45,675 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 22:00:45,676 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 22:00:45,676 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 22:00:45,677 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 22:00:45,677 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 22:00:45,677 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 22:00:45,677 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 22:00:45,678 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 22:00:45,680 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 22:00:45,680 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 22:00:45,680 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 22:00:45,680 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 22:00:45,680 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 22:00:45,681 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 22:00:45,681 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 22:00:45,681 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 22:00:45,681 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 22:00:45,681 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 22:00:45,681 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 22:00:45,682 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 22:00:45,682 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 22:00:45,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 22:00:45,682 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 22:00:45,683 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 22:00:45,683 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 22:00:45,683 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 22:00:45,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 22:00:45,683 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 22:00:45,684 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 22:00:46,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 22:00:46,131 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 22:00:46,134 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 22:00:46,136 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 22:00:46,136 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 22:00:46,139 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M1-1.c [2022-10-15 22:00:46,222 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcaea28e1/00f0b2f7e2634d9d93f0f5388b208379/FLAGef3eb4f3b [2022-10-15 22:00:47,151 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 22:00:47,152 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_aso.2.M1-1.c [2022-10-15 22:00:47,207 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcaea28e1/00f0b2f7e2634d9d93f0f5388b208379/FLAGef3eb4f3b [2022-10-15 22:00:47,292 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcaea28e1/00f0b2f7e2634d9d93f0f5388b208379 [2022-10-15 22:00:47,295 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 22:00:47,310 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 22:00:47,313 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 22:00:47,313 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 22:00:47,319 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 22:00:47,320 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:00:47" (1/1) ... [2022-10-15 22:00:47,321 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74affda0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:00:47, skipping insertion in model container [2022-10-15 22:00:47,321 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:00:47" (1/1) ... [2022-10-15 22:00:47,331 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 22:00:47,411 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 22:00:47,627 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.2.M1-1.c[2062,2075] [2022-10-15 22:00:48,226 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 22:00:48,267 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 22:00:48,294 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.2.M1-1.c[2062,2075] [2022-10-15 22:00:48,612 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 22:00:48,663 INFO L208 MainTranslator]: Completed translation [2022-10-15 22:00:48,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:00:48 WrapperNode [2022-10-15 22:00:48,668 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 22:00:48,670 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 22:00:48,670 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 22:00:48,670 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 22:00:48,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:00:48" (1/1) ... [2022-10-15 22:00:48,816 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:00:48" (1/1) ... [2022-10-15 22:00:49,179 INFO L138 Inliner]: procedures = 72, calls = 2681, calls flagged for inlining = 28, calls inlined = 28, statements flattened = 5695 [2022-10-15 22:00:49,180 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 22:00:49,181 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 22:00:49,181 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 22:00:49,182 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 22:00:49,194 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:00:48" (1/1) ... [2022-10-15 22:00:49,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:00:48" (1/1) ... [2022-10-15 22:00:49,296 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:00:48" (1/1) ... [2022-10-15 22:00:49,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:00:48" (1/1) ... [2022-10-15 22:00:49,505 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:00:48" (1/1) ... [2022-10-15 22:00:49,557 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:00:48" (1/1) ... [2022-10-15 22:00:49,598 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:00:48" (1/1) ... [2022-10-15 22:00:49,676 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:00:48" (1/1) ... [2022-10-15 22:00:49,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 22:00:49,731 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 22:00:49,732 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 22:00:49,732 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 22:00:49,734 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:00:48" (1/1) ... [2022-10-15 22:00:49,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 22:00:49,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:00:49,793 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 22:00:49,816 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 22:00:49,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 22:00:49,882 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_trans [2022-10-15 22:00:49,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_trans [2022-10-15 22:00:49,882 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-10-15 22:00:49,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-10-15 22:00:49,882 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-10-15 22:00:49,883 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-10-15 22:00:49,883 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-10-15 22:00:49,884 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-10-15 22:00:49,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 22:00:49,884 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-10-15 22:00:49,884 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-10-15 22:00:49,884 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-10-15 22:00:49,884 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-10-15 22:00:49,885 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-10-15 22:00:49,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-10-15 22:00:49,885 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-10-15 22:00:49,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-10-15 22:00:49,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 22:00:49,887 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-10-15 22:00:49,887 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-10-15 22:00:49,887 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-10-15 22:00:49,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-10-15 22:00:49,888 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-10-15 22:00:49,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-10-15 22:00:49,888 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-10-15 22:00:49,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-10-15 22:00:49,888 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-10-15 22:00:49,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-10-15 22:00:49,889 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-10-15 22:00:49,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-10-15 22:00:49,889 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-10-15 22:00:49,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-10-15 22:00:49,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 22:00:49,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 22:00:49,890 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-10-15 22:00:49,890 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-10-15 22:00:49,890 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-10-15 22:00:49,890 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-10-15 22:00:49,891 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-10-15 22:00:49,891 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-10-15 22:00:49,891 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-10-15 22:00:49,891 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-10-15 22:00:49,891 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-15 22:00:49,891 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-15 22:00:49,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 22:00:49,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 22:00:49,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 22:00:49,892 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-10-15 22:00:49,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-10-15 22:00:49,893 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-10-15 22:00:49,894 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-10-15 22:00:49,894 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-10-15 22:00:49,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-10-15 22:00:49,895 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-10-15 22:00:49,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-10-15 22:00:50,588 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 22:00:50,591 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 22:01:08,452 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 22:01:08,476 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 22:01:08,476 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-15 22:01:08,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:01:08 BoogieIcfgContainer [2022-10-15 22:01:08,485 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 22:01:08,489 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 22:01:08,489 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 22:01:08,493 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 22:01:08,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 10:00:47" (1/3) ... [2022-10-15 22:01:08,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67b4ab78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:01:08, skipping insertion in model container [2022-10-15 22:01:08,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:00:48" (2/3) ... [2022-10-15 22:01:08,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67b4ab78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:01:08, skipping insertion in model container [2022-10-15 22:01:08,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:01:08" (3/3) ... [2022-10-15 22:01:08,498 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_aso.2.M1-1.c [2022-10-15 22:01:08,526 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 22:01:08,527 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 64 error locations. [2022-10-15 22:01:08,666 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 22:01:08,676 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;@297b38d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 22:01:08,676 INFO L358 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2022-10-15 22:01:08,691 INFO L276 IsEmpty]: Start isEmpty. Operand has 1767 states, 1081 states have (on average 1.299722479185939) internal successors, (1405), 1176 states have internal predecessors, (1405), 597 states have call successors, (597), 24 states have call predecessors, (597), 24 states have return successors, (597), 595 states have call predecessors, (597), 597 states have call successors, (597) [2022-10-15 22:01:08,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-10-15 22:01:08,702 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:01:08,703 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] [2022-10-15 22:01:08,704 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)] === [2022-10-15 22:01:08,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:01:08,711 INFO L85 PathProgramCache]: Analyzing trace with hash 960654877, now seen corresponding path program 1 times [2022-10-15 22:01:08,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:01:08,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893929362] [2022-10-15 22:01:08,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:01:08,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:01:09,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:01:09,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-15 22:01:09,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:01:09,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 22:01:09,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:01:09,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 22:01:09,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:01:09,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-15 22:01:09,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:01:09,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-15 22:01:09,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:01:09,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-15 22:01:09,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:01:09,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-15 22:01:09,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:01:09,773 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-10-15 22:01:09,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:01:09,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893929362] [2022-10-15 22:01:09,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893929362] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:01:09,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:01:09,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 22:01:09,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631840351] [2022-10-15 22:01:09,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:01:09,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-15 22:01:09,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:01:09,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-15 22:01:09,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-15 22:01:09,847 INFO L87 Difference]: Start difference. First operand has 1767 states, 1081 states have (on average 1.299722479185939) internal successors, (1405), 1176 states have internal predecessors, (1405), 597 states have call successors, (597), 24 states have call predecessors, (597), 24 states have return successors, (597), 595 states have call predecessors, (597), 597 states have call successors, (597) 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) [2022-10-15 22:01:10,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:01:10,191 INFO L93 Difference]: Finished difference Result 3479 states and 5761 transitions. [2022-10-15 22:01:10,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-15 22:01:10,198 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 [2022-10-15 22:01:10,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:01:10,252 INFO L225 Difference]: With dead ends: 3479 [2022-10-15 22:01:10,253 INFO L226 Difference]: Without dead ends: 1231 [2022-10-15 22:01:10,290 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 [2022-10-15 22:01:10,299 INFO L413 NwaCegarLoop]: 2546 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, 2546 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 [2022-10-15 22:01:10,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2546 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 22:01:10,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1231 states. [2022-10-15 22:01:10,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1231 to 1231. [2022-10-15 22:01:10,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1231 states, 833 states have (on average 1.3229291716686675) internal successors, (1102), 877 states have internal predecessors, (1102), 361 states have call successors, (361), 23 states have call predecessors, (361), 23 states have return successors, (360), 358 states have call predecessors, (360), 360 states have call successors, (360) [2022-10-15 22:01:10,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1231 states to 1231 states and 1823 transitions. [2022-10-15 22:01:10,722 INFO L78 Accepts]: Start accepts. Automaton has 1231 states and 1823 transitions. Word has length 47 [2022-10-15 22:01:10,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:01:10,723 INFO L495 AbstractCegarLoop]: Abstraction has 1231 states and 1823 transitions. [2022-10-15 22:01:10,723 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) [2022-10-15 22:01:10,724 INFO L276 IsEmpty]: Start isEmpty. Operand 1231 states and 1823 transitions. [2022-10-15 22:01:10,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2022-10-15 22:01:10,746 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:01:10,747 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] [2022-10-15 22:01:10,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 22:01:10,748 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)] === [2022-10-15 22:01:10,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:01:10,749 INFO L85 PathProgramCache]: Analyzing trace with hash -782390474, now seen corresponding path program 1 times [2022-10-15 22:01:10,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:01:10,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239764387] [2022-10-15 22:01:10,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:01:10,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms