/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 06:25:12,026 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 06:25:12,028 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 06:25:12,046 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 06:25:12,046 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 06:25:12,047 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 06:25:12,048 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 06:25:12,049 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 06:25:12,050 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 06:25:12,050 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 06:25:12,051 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 06:25:12,052 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 06:25:12,052 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 06:25:12,052 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 06:25:12,053 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 06:25:12,054 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 06:25:12,054 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 06:25:12,055 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 06:25:12,056 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 06:25:12,057 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 06:25:12,058 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 06:25:12,059 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 06:25:12,059 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 06:25:12,060 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 06:25:12,062 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 06:25:12,063 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 06:25:12,063 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 06:25:12,063 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 06:25:12,064 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 06:25:12,064 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 06:25:12,064 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 06:25:12,065 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 06:25:12,065 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 06:25:12,066 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 06:25:12,066 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 06:25:12,067 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 06:25:12,067 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 06:25:12,067 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 06:25:12,067 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 06:25:12,068 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 06:25:12,068 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 06:25:12,069 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-01 06:25:12,083 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 06:25:12,084 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 06:25:12,084 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 06:25:12,084 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 06:25:12,084 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 06:25:12,085 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 06:25:12,085 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 06:25:12,085 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 06:25:12,085 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 06:25:12,085 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 06:25:12,085 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 06:25:12,085 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 06:25:12,085 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 06:25:12,085 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 06:25:12,085 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 06:25:12,085 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 06:25:12,086 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 06:25:12,086 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 06:25:12,086 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 06:25:12,086 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 06:25:12,086 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 06:25:12,086 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 06:25:12,086 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 06:25:12,086 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 06:25:12,087 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 06:25:12,087 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 06:25:12,087 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 06:25:12,087 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 06:25:12,087 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 06:25:12,087 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 06:25:12,087 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 06:25:12,087 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 06:25:12,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 06:25:12,087 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 06:25:12,087 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 06:25:12,088 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 06:25:12,088 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 06:25:12,088 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 06:25:12,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 06:25:12,088 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 06:25:12,088 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 06:25:12,088 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-01 06:25:12,268 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 06:25:12,289 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 06:25:12,291 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 06:25:12,292 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 06:25:12,292 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 06:25:12,293 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c [2023-04-01 06:25:13,445 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 06:25:13,735 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 06:25:13,736 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c [2023-04-01 06:25:13,754 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2e6cc606/d90212eb0868414f9636a9ee0332f516/FLAGb38fb7a88 [2023-04-01 06:25:13,769 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2e6cc606/d90212eb0868414f9636a9ee0332f516 [2023-04-01 06:25:13,771 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 06:25:13,772 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 06:25:13,775 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 06:25:13,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 06:25:13,778 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 06:25:13,779 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 06:25:13" (1/1) ... [2023-04-01 06:25:13,780 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36358b3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:25:13, skipping insertion in model container [2023-04-01 06:25:13,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 06:25:13" (1/1) ... [2023-04-01 06:25:13,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 06:25:13,852 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 06:25:14,024 WARN L247 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_ctm.1.c[1868,1881] [2023-04-01 06:25:14,416 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 06:25:14,430 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 06:25:14,439 WARN L247 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_ctm.1.c[1868,1881] [2023-04-01 06:25:14,640 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 06:25:14,674 INFO L208 MainTranslator]: Completed translation [2023-04-01 06:25:14,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:25:14 WrapperNode [2023-04-01 06:25:14,675 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 06:25:14,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 06:25:14,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 06:25:14,676 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 06:25:14,684 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:25:14" (1/1) ... [2023-04-01 06:25:14,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:25:14" (1/1) ... [2023-04-01 06:25:14,743 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:25:14" (1/1) ... [2023-04-01 06:25:14,743 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:25:14" (1/1) ... [2023-04-01 06:25:14,897 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:25:14" (1/1) ... [2023-04-01 06:25:14,931 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:25:14" (1/1) ... [2023-04-01 06:25:14,949 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:25:14" (1/1) ... [2023-04-01 06:25:15,001 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:25:14" (1/1) ... [2023-04-01 06:25:15,030 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 06:25:15,031 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 06:25:15,031 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 06:25:15,032 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 06:25:15,032 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:25:14" (1/1) ... [2023-04-01 06:25:15,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 06:25:15,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 06:25:15,060 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) [2023-04-01 06:25:15,081 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 [2023-04-01 06:25:15,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 06:25:15,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 06:25:15,097 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 06:25:15,098 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-04-01 06:25:15,099 INFO L138 BoogieDeclarations]: Found implementation of procedure calibrate [2023-04-01 06:25:15,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2023-04-01 06:25:15,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2023-04-01 06:25:15,099 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2023-04-01 06:25:15,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_is_ENTER_button_pressed [2023-04-01 06:25:15,099 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2023-04-01 06:25:15,099 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-04-01 06:25:15,099 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-04-01 06:25:15,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_light [2023-04-01 06:25:15,099 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2023-04-01 06:25:15,099 INFO L138 BoogieDeclarations]: Found implementation of procedure transition [2023-04-01 06:25:15,099 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2023-04-01 06:25:15,099 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2023-04-01 06:25:15,100 INFO L138 BoogieDeclarations]: Found implementation of procedure Controller [2023-04-01 06:25:15,100 INFO L138 BoogieDeclarations]: Found implementation of procedure Reader [2023-04-01 06:25:15,100 INFO L138 BoogieDeclarations]: Found implementation of procedure Writer [2023-04-01 06:25:15,100 INFO L138 BoogieDeclarations]: Found implementation of procedure TapeMover [2023-04-01 06:25:15,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2023-04-01 06:25:15,100 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperController [2023-04-01 06:25:15,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2023-04-01 06:25:15,100 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperTapeMover [2023-04-01 06:25:15,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2023-04-01 06:25:15,100 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperReader [2023-04-01 06:25:15,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2023-04-01 06:25:15,100 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperWriter [2023-04-01 06:25:15,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2023-04-01 06:25:15,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2023-04-01 06:25:15,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-04-01 06:25:15,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-04-01 06:25:15,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-04-01 06:25:15,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2023-04-01 06:25:15,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_assert_i0 [2023-04-01 06:25:15,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2023-04-01 06:25:15,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2023-04-01 06:25:15,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2023-04-01 06:25:15,102 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 06:25:15,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2023-04-01 06:25:15,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2023-04-01 06:25:15,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2023-04-01 06:25:15,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2023-04-01 06:25:15,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2023-04-01 06:25:15,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2023-04-01 06:25:15,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2023-04-01 06:25:15,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2023-04-01 06:25:15,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2023-04-01 06:25:15,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2023-04-01 06:25:15,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2023-04-01 06:25:15,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_dir [2023-04-01 06:25:15,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_read [2023-04-01 06:25:15,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2023-04-01 06:25:15,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2023-04-01 06:25:15,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2023-04-01 06:25:15,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2023-04-01 06:25:15,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2023-04-01 06:25:15,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_job_count_Controller [2023-04-01 06:25:15,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_job_count_TapeMover [2023-04-01 06:25:15,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_job_count_Reader [2023-04-01 06:25:15,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_job_count_Writer [2023-04-01 06:25:15,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2023-04-01 06:25:15,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2023-04-01 06:25:15,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_speed [2023-04-01 06:25:15,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2023-04-01 06:25:15,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_speed [2023-04-01 06:25:15,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2023-04-01 06:25:15,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_speed [2023-04-01 06:25:15,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtcolorsensor_data_mode [2023-04-01 06:25:15,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtcolorsensor_mode [2023-04-01 06:25:15,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2023-04-01 06:25:15,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2023-04-01 06:25:15,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2023-04-01 06:25:15,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2023-04-01 06:25:15,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2023-04-01 06:25:15,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_threshold [2023-04-01 06:25:15,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2023-04-01 06:25:15,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2023-04-01 06:25:15,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2023-04-01 06:25:15,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_job_count_Controller [2023-04-01 06:25:15,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_job_count_TapeMover [2023-04-01 06:25:15,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_job_count_Reader [2023-04-01 06:25:15,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_job_count_Writer [2023-04-01 06:25:15,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2023-04-01 06:25:15,109 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 06:25:15,109 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 06:25:15,109 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 06:25:15,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 06:25:15,109 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2023-04-01 06:25:15,109 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_assert_i0 [2023-04-01 06:25:15,109 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2023-04-01 06:25:15,110 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-04-01 06:25:15,110 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-04-01 06:25:15,110 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-04-01 06:25:15,110 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2023-04-01 06:25:15,110 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-01 06:25:15,110 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 06:25:15,110 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-01 06:25:15,110 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-04-01 06:25:15,110 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cpu_lock [2023-04-01 06:25:15,110 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cpu_unlock [2023-04-01 06:25:15,110 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-01 06:25:15,110 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2023-04-01 06:25:15,110 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2023-04-01 06:25:15,110 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2023-04-01 06:25:15,111 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2023-04-01 06:25:15,111 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2023-04-01 06:25:15,111 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_speed [2023-04-01 06:25:15,111 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2023-04-01 06:25:15,111 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2023-04-01 06:25:15,111 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2023-04-01 06:25:15,111 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_speed [2023-04-01 06:25:15,111 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2023-04-01 06:25:15,111 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2023-04-01 06:25:15,112 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2023-04-01 06:25:15,112 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_speed [2023-04-01 06:25:15,113 INFO L130 BoogieDeclarations]: Found specification of procedure calibrate [2023-04-01 06:25:15,113 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2023-04-01 06:25:15,113 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtcolorsensor_data_mode [2023-04-01 06:25:15,113 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2023-04-01 06:25:15,114 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtcolorsensor_mode [2023-04-01 06:25:15,115 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2023-04-01 06:25:15,115 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2023-04-01 06:25:15,115 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2023-04-01 06:25:15,115 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_is_ENTER_button_pressed [2023-04-01 06:25:15,116 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2023-04-01 06:25:15,116 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-04-01 06:25:15,116 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-04-01 06:25:15,116 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_light [2023-04-01 06:25:15,116 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2023-04-01 06:25:15,116 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2023-04-01 06:25:15,116 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2023-04-01 06:25:15,116 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2023-04-01 06:25:15,116 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2023-04-01 06:25:15,119 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_dir [2023-04-01 06:25:15,119 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2023-04-01 06:25:15,119 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_read [2023-04-01 06:25:15,120 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2023-04-01 06:25:15,120 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2023-04-01 06:25:15,120 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2023-04-01 06:25:15,120 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2023-04-01 06:25:15,120 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_threshold [2023-04-01 06:25:15,120 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2023-04-01 06:25:15,120 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2023-04-01 06:25:15,120 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2023-04-01 06:25:15,120 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2023-04-01 06:25:15,120 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2023-04-01 06:25:15,120 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2023-04-01 06:25:15,120 INFO L130 BoogieDeclarations]: Found specification of procedure transition [2023-04-01 06:25:15,120 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-04-01 06:25:15,120 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2023-04-01 06:25:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure Controller [2023-04-01 06:25:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure Reader [2023-04-01 06:25:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure Writer [2023-04-01 06:25:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure TapeMover [2023-04-01 06:25:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_job_count_Controller [2023-04-01 06:25:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_job_count_Controller [2023-04-01 06:25:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2023-04-01 06:25:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperController [2023-04-01 06:25:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_job_count_TapeMover [2023-04-01 06:25:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_job_count_TapeMover [2023-04-01 06:25:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2023-04-01 06:25:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperTapeMover [2023-04-01 06:25:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_job_count_Reader [2023-04-01 06:25:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_job_count_Reader [2023-04-01 06:25:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2023-04-01 06:25:15,122 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperReader [2023-04-01 06:25:15,122 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_job_count_Writer [2023-04-01 06:25:15,122 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_job_count_Writer [2023-04-01 06:25:15,122 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2023-04-01 06:25:15,122 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperWriter [2023-04-01 06:25:15,122 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2023-04-01 06:25:15,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 06:25:15,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 06:25:15,122 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2023-04-01 06:25:15,122 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2023-04-01 06:25:15,122 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2023-04-01 06:25:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2023-04-01 06:25:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 06:25:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 06:25:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 06:25:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 06:25:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 06:25:15,565 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 06:25:15,567 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 06:25:31,413 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 06:25:35,231 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 06:25:35,233 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-04-01 06:25:35,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 06:25:35 BoogieIcfgContainer [2023-04-01 06:25:35,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 06:25:35,240 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 06:25:35,240 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 06:25:35,242 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 06:25:35,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 06:25:13" (1/3) ... [2023-04-01 06:25:35,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a0efb94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 06:25:35, skipping insertion in model container [2023-04-01 06:25:35,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:25:14" (2/3) ... [2023-04-01 06:25:35,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a0efb94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 06:25:35, skipping insertion in model container [2023-04-01 06:25:35,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 06:25:35" (3/3) ... [2023-04-01 06:25:35,244 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.1.c [2023-04-01 06:25:35,258 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 06:25:35,258 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 06:25:35,323 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 06:25:35,328 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;@271280b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 06:25:35,328 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 06:25:35,337 INFO L276 IsEmpty]: Start isEmpty. Operand has 1088 states, 663 states have (on average 1.3574660633484164) internal successors, (900), 691 states have internal predecessors, (900), 340 states have call successors, (340), 79 states have call predecessors, (340), 79 states have return successors, (340), 328 states have call predecessors, (340), 340 states have call successors, (340) [2023-04-01 06:25:35,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-04-01 06:25:35,345 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 06:25:35,346 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 06:25:35,347 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 06:25:35,351 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 06:25:35,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1643341577, now seen corresponding path program 1 times [2023-04-01 06:25:35,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 06:25:35,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889977338] [2023-04-01 06:25:35,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 06:25:35,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms