/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/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/seq-mthreaded/rekh_ctm.1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 19:40:00,968 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 19:40:00,971 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 19:40:01,007 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 19:40:01,007 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 19:40:01,009 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 19:40:01,010 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 19:40:01,013 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 19:40:01,015 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 19:40:01,016 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 19:40:01,017 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 19:40:01,019 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 19:40:01,019 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 19:40:01,021 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 19:40:01,022 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 19:40:01,023 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 19:40:01,024 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 19:40:01,025 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 19:40:01,027 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 19:40:01,030 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 19:40:01,035 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 19:40:01,037 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 19:40:01,039 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 19:40:01,043 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 19:40:01,046 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 19:40:01,047 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 19:40:01,047 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 19:40:01,049 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 19:40:01,049 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 19:40:01,050 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 19:40:01,051 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 19:40:01,057 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 19:40:01,058 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 19:40:01,059 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 19:40:01,063 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 19:40:01,063 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 19:40:01,064 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 19:40:01,065 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 19:40:01,066 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 19:40:01,075 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 19:40:01,076 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 19:40:01,077 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-28 19:40:01,131 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 19:40:01,132 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 19:40:01,134 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 19:40:01,134 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 19:40:01,135 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 19:40:01,135 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 19:40:01,135 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 19:40:01,135 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 19:40:01,135 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 19:40:01,136 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 19:40:01,137 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 19:40:01,137 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 19:40:01,137 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 19:40:01,138 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 19:40:01,138 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 19:40:01,138 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 19:40:01,138 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 19:40:01,139 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 19:40:01,139 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 19:40:01,139 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 19:40:01,139 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 19:40:01,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 19:40:01,140 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 19:40:01,140 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 19:40:01,140 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 19:40:01,141 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 19:40:01,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 19:40:01,141 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 19:40:01,141 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 19:40:01,141 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 19:40:01,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 19:40:01,582 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 19:40:01,586 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 19:40:01,587 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 19:40:01,588 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 19:40:01,590 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/rekh_ctm.1.c [2020-10-28 19:40:01,671 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/db04c262a/97be163c7b6b4ad79453aa87f984172e/FLAG52dac44fa [2020-10-28 19:40:02,683 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 19:40:02,684 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/rekh_ctm.1.c [2020-10-28 19:40:02,710 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/db04c262a/97be163c7b6b4ad79453aa87f984172e/FLAG52dac44fa [2020-10-28 19:40:02,741 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/db04c262a/97be163c7b6b4ad79453aa87f984172e [2020-10-28 19:40:02,744 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 19:40:02,752 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 19:40:02,754 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 19:40:02,754 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 19:40:02,758 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 19:40:02,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 07:40:02" (1/1) ... [2020-10-28 19:40:02,763 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c526875 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:40:02, skipping insertion in model container [2020-10-28 19:40:02,763 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 07:40:02" (1/1) ... [2020-10-28 19:40:02,772 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 19:40:02,856 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 19:40:03,951 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 19:40:03,984 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 19:40:04,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 19:40:04,473 INFO L208 MainTranslator]: Completed translation [2020-10-28 19:40:04,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:40:04 WrapperNode [2020-10-28 19:40:04,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 19:40:04,477 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 19:40:04,477 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 19:40:04,477 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 19:40:04,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:40:04" (1/1) ... [2020-10-28 19:40:04,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:40:04" (1/1) ... [2020-10-28 19:40:04,588 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:40:04" (1/1) ... [2020-10-28 19:40:04,589 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:40:04" (1/1) ... [2020-10-28 19:40:04,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:40:04" (1/1) ... [2020-10-28 19:40:04,869 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:40:04" (1/1) ... [2020-10-28 19:40:04,907 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:40:04" (1/1) ... [2020-10-28 19:40:04,944 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 19:40:04,945 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 19:40:04,945 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 19:40:04,945 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 19:40:04,946 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:40:04" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 19:40:05,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 19:40:05,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 19:40:05,031 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 19:40:05,031 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-28 19:40:05,032 INFO L138 BoogieDeclarations]: Found implementation of procedure calibrate [2020-10-28 19:40:05,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2020-10-28 19:40:05,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2020-10-28 19:40:05,032 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2020-10-28 19:40:05,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_is_ENTER_button_pressed [2020-10-28 19:40:05,032 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2020-10-28 19:40:05,032 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2020-10-28 19:40:05,033 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2020-10-28 19:40:05,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_light [2020-10-28 19:40:05,033 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2020-10-28 19:40:05,033 INFO L138 BoogieDeclarations]: Found implementation of procedure transition [2020-10-28 19:40:05,033 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-28 19:40:05,033 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2020-10-28 19:40:05,034 INFO L138 BoogieDeclarations]: Found implementation of procedure Controller [2020-10-28 19:40:05,034 INFO L138 BoogieDeclarations]: Found implementation of procedure Reader [2020-10-28 19:40:05,034 INFO L138 BoogieDeclarations]: Found implementation of procedure Writer [2020-10-28 19:40:05,034 INFO L138 BoogieDeclarations]: Found implementation of procedure TapeMover [2020-10-28 19:40:05,034 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2020-10-28 19:40:05,034 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperController [2020-10-28 19:40:05,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2020-10-28 19:40:05,035 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperTapeMover [2020-10-28 19:40:05,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2020-10-28 19:40:05,035 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperReader [2020-10-28 19:40:05,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2020-10-28 19:40:05,035 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperWriter [2020-10-28 19:40:05,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2020-10-28 19:40:05,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2020-10-28 19:40:05,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2020-10-28 19:40:05,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2020-10-28 19:40:05,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2020-10-28 19:40:05,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2020-10-28 19:40:05,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_assert_i0 [2020-10-28 19:40:05,037 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2020-10-28 19:40:05,037 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2020-10-28 19:40:05,037 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2020-10-28 19:40:05,037 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 19:40:05,037 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2020-10-28 19:40:05,037 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2020-10-28 19:40:05,037 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2020-10-28 19:40:05,037 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2020-10-28 19:40:05,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2020-10-28 19:40:05,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2020-10-28 19:40:05,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2020-10-28 19:40:05,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2020-10-28 19:40:05,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2020-10-28 19:40:05,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2020-10-28 19:40:05,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2020-10-28 19:40:05,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_dir [2020-10-28 19:40:05,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_read [2020-10-28 19:40:05,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2020-10-28 19:40:05,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2020-10-28 19:40:05,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2020-10-28 19:40:05,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2020-10-28 19:40:05,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2020-10-28 19:40:05,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_job_count_Controller [2020-10-28 19:40:05,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_job_count_TapeMover [2020-10-28 19:40:05,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_job_count_Reader [2020-10-28 19:40:05,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_job_count_Writer [2020-10-28 19:40:05,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2020-10-28 19:40:05,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2020-10-28 19:40:05,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_speed [2020-10-28 19:40:05,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2020-10-28 19:40:05,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_speed [2020-10-28 19:40:05,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2020-10-28 19:40:05,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_speed [2020-10-28 19:40:05,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtcolorsensor_data_mode [2020-10-28 19:40:05,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtcolorsensor_mode [2020-10-28 19:40:05,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2020-10-28 19:40:05,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2020-10-28 19:40:05,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2020-10-28 19:40:05,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2020-10-28 19:40:05,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2020-10-28 19:40:05,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_threshold [2020-10-28 19:40:05,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2020-10-28 19:40:05,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2020-10-28 19:40:05,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2020-10-28 19:40:05,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_job_count_Controller [2020-10-28 19:40:05,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_job_count_TapeMover [2020-10-28 19:40:05,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_job_count_Reader [2020-10-28 19:40:05,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_job_count_Writer [2020-10-28 19:40:05,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2020-10-28 19:40:05,044 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 19:40:05,044 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 19:40:05,044 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 19:40:05,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 19:40:05,044 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2020-10-28 19:40:05,044 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_assert_i0 [2020-10-28 19:40:05,045 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2020-10-28 19:40:05,045 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2020-10-28 19:40:05,045 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2020-10-28 19:40:05,045 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2020-10-28 19:40:05,045 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2020-10-28 19:40:05,045 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-28 19:40:05,045 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 19:40:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-28 19:40:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-28 19:40:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cpu_lock [2020-10-28 19:40:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cpu_unlock [2020-10-28 19:40:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-28 19:40:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2020-10-28 19:40:05,046 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2020-10-28 19:40:05,047 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2020-10-28 19:40:05,047 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2020-10-28 19:40:05,047 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2020-10-28 19:40:05,047 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_speed [2020-10-28 19:40:05,047 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2020-10-28 19:40:05,047 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2020-10-28 19:40:05,047 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2020-10-28 19:40:05,048 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_speed [2020-10-28 19:40:05,048 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2020-10-28 19:40:05,048 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2020-10-28 19:40:05,048 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2020-10-28 19:40:05,048 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_speed [2020-10-28 19:40:05,048 INFO L130 BoogieDeclarations]: Found specification of procedure calibrate [2020-10-28 19:40:05,048 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2020-10-28 19:40:05,049 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtcolorsensor_data_mode [2020-10-28 19:40:05,049 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2020-10-28 19:40:05,049 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtcolorsensor_mode [2020-10-28 19:40:05,049 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2020-10-28 19:40:05,049 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2020-10-28 19:40:05,049 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2020-10-28 19:40:05,049 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_is_ENTER_button_pressed [2020-10-28 19:40:05,050 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2020-10-28 19:40:05,050 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2020-10-28 19:40:05,050 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2020-10-28 19:40:05,050 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_light [2020-10-28 19:40:05,050 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2020-10-28 19:40:05,050 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2020-10-28 19:40:05,050 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2020-10-28 19:40:05,051 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2020-10-28 19:40:05,051 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2020-10-28 19:40:05,051 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_dir [2020-10-28 19:40:05,051 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2020-10-28 19:40:05,051 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_read [2020-10-28 19:40:05,051 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2020-10-28 19:40:05,051 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2020-10-28 19:40:05,052 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2020-10-28 19:40:05,052 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2020-10-28 19:40:05,052 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_threshold [2020-10-28 19:40:05,052 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2020-10-28 19:40:05,052 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2020-10-28 19:40:05,052 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2020-10-28 19:40:05,052 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2020-10-28 19:40:05,053 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2020-10-28 19:40:05,053 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2020-10-28 19:40:05,053 INFO L130 BoogieDeclarations]: Found specification of procedure transition [2020-10-28 19:40:05,053 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-28 19:40:05,053 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2020-10-28 19:40:05,053 INFO L130 BoogieDeclarations]: Found specification of procedure Controller [2020-10-28 19:40:05,053 INFO L130 BoogieDeclarations]: Found specification of procedure Reader [2020-10-28 19:40:05,054 INFO L130 BoogieDeclarations]: Found specification of procedure Writer [2020-10-28 19:40:05,054 INFO L130 BoogieDeclarations]: Found specification of procedure TapeMover [2020-10-28 19:40:05,054 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_job_count_Controller [2020-10-28 19:40:05,054 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_job_count_Controller [2020-10-28 19:40:05,054 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2020-10-28 19:40:05,054 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperController [2020-10-28 19:40:05,054 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_job_count_TapeMover [2020-10-28 19:40:05,054 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_job_count_TapeMover [2020-10-28 19:40:05,055 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2020-10-28 19:40:05,055 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperTapeMover [2020-10-28 19:40:05,055 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_job_count_Reader [2020-10-28 19:40:05,055 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_job_count_Reader [2020-10-28 19:40:05,055 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2020-10-28 19:40:05,055 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperReader [2020-10-28 19:40:05,055 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_job_count_Writer [2020-10-28 19:40:05,056 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_job_count_Writer [2020-10-28 19:40:05,056 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2020-10-28 19:40:05,056 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperWriter [2020-10-28 19:40:05,056 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2020-10-28 19:40:05,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 19:40:05,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 19:40:05,056 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2020-10-28 19:40:05,056 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2020-10-28 19:40:05,057 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2020-10-28 19:40:05,057 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2020-10-28 19:40:05,057 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 19:40:05,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 19:40:05,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 19:40:05,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 19:40:05,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 19:40:26,216 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 19:40:26,216 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-28 19:40:26,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 07:40:26 BoogieIcfgContainer [2020-10-28 19:40:26,224 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 19:40:26,228 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 19:40:26,228 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 19:40:26,232 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 19:40:26,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 07:40:02" (1/3) ... [2020-10-28 19:40:26,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e36fa74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 07:40:26, skipping insertion in model container [2020-10-28 19:40:26,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 07:40:04" (2/3) ... [2020-10-28 19:40:26,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e36fa74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 07:40:26, skipping insertion in model container [2020-10-28 19:40:26,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 07:40:26" (3/3) ... [2020-10-28 19:40:26,236 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_ctm.1.c [2020-10-28 19:40:26,248 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 19:40:26,256 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 19:40:26,273 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 19:40:26,311 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 19:40:26,312 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 19:40:26,312 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 19:40:26,312 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 19:40:26,312 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 19:40:26,312 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 19:40:26,312 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 19:40:26,312 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 19:40:26,375 INFO L276 IsEmpty]: Start isEmpty. Operand 2592 states. [2020-10-28 19:40:26,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-28 19:40:26,395 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:40:26,396 INFO L422 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 19:40:26,396 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:40:26,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:40:26,403 INFO L82 PathProgramCache]: Analyzing trace with hash -313719166, now seen corresponding path program 1 times [2020-10-28 19:40:26,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:40:26,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1870707873] [2020-10-28 19:40:26,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:40:26,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:40:27,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:27,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:27,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:27,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:27,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:27,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:28,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:28,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:28,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:28,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:28,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:28,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:28,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:36,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:40:36,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-10-28 19:40:36,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-28 19:40:36,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9215 [2020-10-28 19:40:36,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:40:36,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:40:36,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:40:36,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-28 19:40:36,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:40:36,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 19:40:39,544 WARN L193 SmtUtils]: Spent 3.16 s on a formula simplification that was a NOOP. DAG size: 499 [2020-10-28 19:40:39,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 19:40:39,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:40:39,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:39,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:40:39,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:40:39,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:40:39,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-28 19:40:39,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:40:39,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:40:39,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:40:39,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:40:39,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:40:39,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:40:39,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-28 19:40:39,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:40:39,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:39,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:40:39,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:40:39,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:40:39,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 19:40:39,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:40:39,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:40:39,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:40:39,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:40:39,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:40:39,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:40:39,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 19:40:39,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:40:39,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:39,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:40:39,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 19:40:39,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:40:39,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 19:40:39,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:40:39,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:40:39,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:40:39,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:40:39,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:40:39,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:40:39,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-28 19:40:39,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:40:39,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:39,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:39,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:39,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:39,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:39,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:39,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:39,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:39,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:39,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:39,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:39,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:39,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:39,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:39,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:40,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:40,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:40,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:40,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:40,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:40,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:40,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:40,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:40,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:40,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:40,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:40,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:40,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:40,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:40,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:40,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:40,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:40,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:40,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:40,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:40,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:41,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:41,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:41,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:41,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:41,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:41,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:41,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:41,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:40:41,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 19:40:41,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 43 [2020-10-28 19:40:41,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1820 [2020-10-28 19:40:41,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:40:41,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:40:41,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:40:41,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-28 19:40:41,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:40:41,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:40:41,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-28 19:40:41,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:40:41,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:43,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:40:43,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 19:40:43,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:40:43,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1383 [2020-10-28 19:40:43,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:40:43,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:40:43,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:40:43,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 19:40:43,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:40:43,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:40:43,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-28 19:40:43,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:40:43,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:43,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:43,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:40:43,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-28 19:40:43,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 19:40:43,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-28 19:40:43,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:40:43,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:40:43,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:40:43,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-28 19:40:43,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:40:43,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 19:40:43,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 19:40:43,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:40:43,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:40:43,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 19:40:43,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 19:40:43,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 19:40:43,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 19:40:43,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 19:40:43,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 19:40:43,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 19:40:43,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 19:40:43,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 19:40:43,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 19:40:43,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 19:40:43,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1870707873] [2020-10-28 19:40:43,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 19:40:43,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 19:40:43,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005364359] [2020-10-28 19:40:43,349 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 19:40:43,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 19:40:43,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 19:40:43,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-28 19:40:43,374 INFO L87 Difference]: Start difference. First operand 2592 states. Second operand 6 states. [2020-10-28 19:40:46,693 WARN L193 SmtUtils]: Spent 3.25 s on a formula simplification that was a NOOP. DAG size: 502 [2020-10-28 19:42:38,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 19:42:38,410 INFO L93 Difference]: Finished difference Result 6026 states and 9917 transitions. [2020-10-28 19:42:38,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 19:42:38,413 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 164 [2020-10-28 19:42:38,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 19:42:38,482 INFO L225 Difference]: With dead ends: 6026 [2020-10-28 19:42:38,482 INFO L226 Difference]: Without dead ends: 3444 [2020-10-28 19:42:38,521 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-10-28 19:42:38,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3444 states. [2020-10-28 19:42:39,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3444 to 2561. [2020-10-28 19:42:39,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2561 states. [2020-10-28 19:42:39,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2561 states to 2561 states and 3144 transitions. [2020-10-28 19:42:39,238 INFO L78 Accepts]: Start accepts. Automaton has 2561 states and 3144 transitions. Word has length 164 [2020-10-28 19:42:39,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 19:42:39,238 INFO L481 AbstractCegarLoop]: Abstraction has 2561 states and 3144 transitions. [2020-10-28 19:42:39,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 19:42:39,239 INFO L276 IsEmpty]: Start isEmpty. Operand 2561 states and 3144 transitions. [2020-10-28 19:42:39,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-10-28 19:42:39,254 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 19:42:39,255 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 19:42:39,255 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 19:42:39,255 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 19:42:39,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 19:42:39,256 INFO L82 PathProgramCache]: Analyzing trace with hash 617811930, now seen corresponding path program 1 times [2020-10-28 19:42:39,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 19:42:39,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1916025009] [2020-10-28 19:42:39,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 19:42:39,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 19:42:39,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:42:39,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:42:40,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:42:40,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 19:43:15,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking...