/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=DEEPEST --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 00:53:32,014 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 00:53:32,017 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 00:53:32,078 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 00:53:32,079 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 00:53:32,086 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 00:53:32,090 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 00:53:32,096 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 00:53:32,100 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 00:53:32,108 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 00:53:32,110 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 00:53:32,111 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 00:53:32,112 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 00:53:32,116 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 00:53:32,118 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 00:53:32,121 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 00:53:32,123 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 00:53:32,126 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 00:53:32,145 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 00:53:32,150 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 00:53:32,155 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 00:53:32,160 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 00:53:32,161 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 00:53:32,166 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 00:53:32,173 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 00:53:32,173 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 00:53:32,174 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 00:53:32,178 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 00:53:32,179 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 00:53:32,180 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-10-28 00:53:32,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 00:53:32,202 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 00:53:32,203 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 00:53:32,205 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 00:53:32,241 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 00:53:32,241 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 00:53:32,243 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 00:53:32,244 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 00:53:32,244 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 00:53:32,244 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 00:53:32,244 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 00:53:32,245 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 00:53:32,245 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 00:53:32,245 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 00:53:32,245 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 00:53:32,246 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 00:53:32,246 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 00:53:32,246 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 00:53:32,246 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 00:53:32,247 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 00:53:32,247 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 00:53:32,247 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 00:53:32,247 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 00:53:32,248 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 00:53:32,248 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 00:53:32,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 00:53:32,248 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 00:53:32,249 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 00:53:32,249 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 00:53:32,249 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 00:53:32,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 00:53:32,250 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 00:53:32,250 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 00:53:32,250 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-28 00:53:32,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 00:53:32,757 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 00:53:32,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 00:53:32,762 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 00:53:32,763 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 00:53:32,764 INFO L432 ainManager$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 00:53:32,842 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e431c0008/2548807757eb405197ded929d5a7a3a9/FLAGf8a667839 [2020-10-28 00:53:33,780 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 00:53:33,782 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/rekh_ctm.1.c [2020-10-28 00:53:33,817 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e431c0008/2548807757eb405197ded929d5a7a3a9/FLAGf8a667839 [2020-10-28 00:53:34,320 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e431c0008/2548807757eb405197ded929d5a7a3a9 [2020-10-28 00:53:34,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 00:53:34,330 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 00:53:34,334 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 00:53:34,335 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 00:53:34,340 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 00:53:34,342 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 12:53:34" (1/1) ... [2020-10-28 00:53:34,345 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5495827d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:53:34, skipping insertion in model container [2020-10-28 00:53:34,346 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 12:53:34" (1/1) ... [2020-10-28 00:53:34,355 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 00:53:34,465 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 00:53:35,448 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 00:53:35,468 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 00:53:35,838 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 00:53:35,954 INFO L208 MainTranslator]: Completed translation [2020-10-28 00:53:35,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:53:35 WrapperNode [2020-10-28 00:53:35,955 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 00:53:35,956 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 00:53:35,957 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 00:53:35,957 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 00:53:35,972 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:53:35" (1/1) ... [2020-10-28 00:53:35,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:53:35" (1/1) ... [2020-10-28 00:53:36,074 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:53:35" (1/1) ... [2020-10-28 00:53:36,075 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:53:35" (1/1) ... [2020-10-28 00:53:36,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:53:35" (1/1) ... [2020-10-28 00:53:36,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:53:35" (1/1) ... [2020-10-28 00:53:36,412 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:53:35" (1/1) ... [2020-10-28 00:53:36,449 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 00:53:36,450 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 00:53:36,450 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 00:53:36,450 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 00:53:36,451 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:53:35" (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 00:53:36,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 00:53:36,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 00:53:36,531 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 00:53:36,531 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-28 00:53:36,531 INFO L138 BoogieDeclarations]: Found implementation of procedure calibrate [2020-10-28 00:53:36,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2020-10-28 00:53:36,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2020-10-28 00:53:36,532 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2020-10-28 00:53:36,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_is_ENTER_button_pressed [2020-10-28 00:53:36,532 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2020-10-28 00:53:36,532 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2020-10-28 00:53:36,532 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2020-10-28 00:53:36,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_light [2020-10-28 00:53:36,533 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2020-10-28 00:53:36,533 INFO L138 BoogieDeclarations]: Found implementation of procedure transition [2020-10-28 00:53:36,533 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-28 00:53:36,533 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2020-10-28 00:53:36,534 INFO L138 BoogieDeclarations]: Found implementation of procedure Controller [2020-10-28 00:53:36,534 INFO L138 BoogieDeclarations]: Found implementation of procedure Reader [2020-10-28 00:53:36,534 INFO L138 BoogieDeclarations]: Found implementation of procedure Writer [2020-10-28 00:53:36,534 INFO L138 BoogieDeclarations]: Found implementation of procedure TapeMover [2020-10-28 00:53:36,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2020-10-28 00:53:36,534 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperController [2020-10-28 00:53:36,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2020-10-28 00:53:36,535 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperTapeMover [2020-10-28 00:53:36,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2020-10-28 00:53:36,535 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperReader [2020-10-28 00:53:36,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2020-10-28 00:53:36,535 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperWriter [2020-10-28 00:53:36,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2020-10-28 00:53:36,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2020-10-28 00:53:36,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2020-10-28 00:53:36,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2020-10-28 00:53:36,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2020-10-28 00:53:36,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2020-10-28 00:53:36,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_assert_i0 [2020-10-28 00:53:36,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2020-10-28 00:53:36,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2020-10-28 00:53:36,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2020-10-28 00:53:36,537 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 00:53:36,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2020-10-28 00:53:36,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2020-10-28 00:53:36,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2020-10-28 00:53:36,538 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2020-10-28 00:53:36,538 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2020-10-28 00:53:36,538 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2020-10-28 00:53:36,538 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2020-10-28 00:53:36,538 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2020-10-28 00:53:36,538 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2020-10-28 00:53:36,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2020-10-28 00:53:36,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2020-10-28 00:53:36,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_dir [2020-10-28 00:53:36,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_read [2020-10-28 00:53:36,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2020-10-28 00:53:36,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2020-10-28 00:53:36,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2020-10-28 00:53:36,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2020-10-28 00:53:36,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2020-10-28 00:53:36,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_job_count_Controller [2020-10-28 00:53:36,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_job_count_TapeMover [2020-10-28 00:53:36,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_job_count_Reader [2020-10-28 00:53:36,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_job_count_Writer [2020-10-28 00:53:36,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2020-10-28 00:53:36,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2020-10-28 00:53:36,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_speed [2020-10-28 00:53:36,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2020-10-28 00:53:36,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_speed [2020-10-28 00:53:36,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2020-10-28 00:53:36,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_speed [2020-10-28 00:53:36,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtcolorsensor_data_mode [2020-10-28 00:53:36,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtcolorsensor_mode [2020-10-28 00:53:36,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2020-10-28 00:53:36,543 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2020-10-28 00:53:36,543 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2020-10-28 00:53:36,543 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2020-10-28 00:53:36,543 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2020-10-28 00:53:36,543 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_threshold [2020-10-28 00:53:36,543 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2020-10-28 00:53:36,544 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2020-10-28 00:53:36,544 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2020-10-28 00:53:36,544 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_job_count_Controller [2020-10-28 00:53:36,544 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_job_count_TapeMover [2020-10-28 00:53:36,544 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_job_count_Reader [2020-10-28 00:53:36,544 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_job_count_Writer [2020-10-28 00:53:36,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2020-10-28 00:53:36,545 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 00:53:36,545 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 00:53:36,545 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 00:53:36,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 00:53:36,545 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2020-10-28 00:53:36,546 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_assert_i0 [2020-10-28 00:53:36,546 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2020-10-28 00:53:36,546 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2020-10-28 00:53:36,546 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2020-10-28 00:53:36,546 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2020-10-28 00:53:36,546 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2020-10-28 00:53:36,547 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-28 00:53:36,547 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 00:53:36,547 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-28 00:53:36,547 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-28 00:53:36,547 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cpu_lock [2020-10-28 00:53:36,547 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cpu_unlock [2020-10-28 00:53:36,547 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-28 00:53:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2020-10-28 00:53:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2020-10-28 00:53:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2020-10-28 00:53:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2020-10-28 00:53:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2020-10-28 00:53:36,548 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_speed [2020-10-28 00:53:36,549 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2020-10-28 00:53:36,549 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2020-10-28 00:53:36,549 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2020-10-28 00:53:36,549 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_speed [2020-10-28 00:53:36,549 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2020-10-28 00:53:36,549 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2020-10-28 00:53:36,549 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2020-10-28 00:53:36,550 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_speed [2020-10-28 00:53:36,550 INFO L130 BoogieDeclarations]: Found specification of procedure calibrate [2020-10-28 00:53:36,550 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2020-10-28 00:53:36,550 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtcolorsensor_data_mode [2020-10-28 00:53:36,550 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2020-10-28 00:53:36,550 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtcolorsensor_mode [2020-10-28 00:53:36,551 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2020-10-28 00:53:36,551 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2020-10-28 00:53:36,551 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2020-10-28 00:53:36,551 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_is_ENTER_button_pressed [2020-10-28 00:53:36,551 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2020-10-28 00:53:36,551 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2020-10-28 00:53:36,552 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2020-10-28 00:53:36,552 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_light [2020-10-28 00:53:36,552 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2020-10-28 00:53:36,552 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2020-10-28 00:53:36,552 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2020-10-28 00:53:36,553 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2020-10-28 00:53:36,553 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2020-10-28 00:53:36,553 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_dir [2020-10-28 00:53:36,553 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2020-10-28 00:53:36,553 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_read [2020-10-28 00:53:36,553 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2020-10-28 00:53:36,554 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2020-10-28 00:53:36,554 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2020-10-28 00:53:36,554 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2020-10-28 00:53:36,554 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_threshold [2020-10-28 00:53:36,554 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2020-10-28 00:53:36,554 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2020-10-28 00:53:36,555 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2020-10-28 00:53:36,555 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2020-10-28 00:53:36,555 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2020-10-28 00:53:36,555 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2020-10-28 00:53:36,555 INFO L130 BoogieDeclarations]: Found specification of procedure transition [2020-10-28 00:53:36,555 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-28 00:53:36,556 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2020-10-28 00:53:36,556 INFO L130 BoogieDeclarations]: Found specification of procedure Controller [2020-10-28 00:53:36,556 INFO L130 BoogieDeclarations]: Found specification of procedure Reader [2020-10-28 00:53:36,556 INFO L130 BoogieDeclarations]: Found specification of procedure Writer [2020-10-28 00:53:36,556 INFO L130 BoogieDeclarations]: Found specification of procedure TapeMover [2020-10-28 00:53:36,556 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_job_count_Controller [2020-10-28 00:53:36,556 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_job_count_Controller [2020-10-28 00:53:36,557 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2020-10-28 00:53:36,557 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperController [2020-10-28 00:53:36,557 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_job_count_TapeMover [2020-10-28 00:53:36,557 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_job_count_TapeMover [2020-10-28 00:53:36,557 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2020-10-28 00:53:36,557 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperTapeMover [2020-10-28 00:53:36,557 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_job_count_Reader [2020-10-28 00:53:36,558 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_job_count_Reader [2020-10-28 00:53:36,558 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2020-10-28 00:53:36,558 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperReader [2020-10-28 00:53:36,558 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_job_count_Writer [2020-10-28 00:53:36,558 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_job_count_Writer [2020-10-28 00:53:36,558 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2020-10-28 00:53:36,559 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperWriter [2020-10-28 00:53:36,559 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2020-10-28 00:53:36,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 00:53:36,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 00:53:36,559 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2020-10-28 00:53:36,559 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2020-10-28 00:53:36,559 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2020-10-28 00:53:36,560 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2020-10-28 00:53:36,560 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 00:53:36,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 00:53:36,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 00:53:36,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 00:53:36,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 00:53:54,059 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 00:53:54,059 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-28 00:53:54,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 12:53:54 BoogieIcfgContainer [2020-10-28 00:53:54,066 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 00:53:54,068 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 00:53:54,068 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 00:53:54,072 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 00:53:54,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 12:53:34" (1/3) ... [2020-10-28 00:53:54,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@274729fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 12:53:54, skipping insertion in model container [2020-10-28 00:53:54,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:53:35" (2/3) ... [2020-10-28 00:53:54,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@274729fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 12:53:54, skipping insertion in model container [2020-10-28 00:53:54,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 12:53:54" (3/3) ... [2020-10-28 00:53:54,076 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_ctm.1.c [2020-10-28 00:53:54,090 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 00:53:54,098 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 00:53:54,112 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 00:53:54,153 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 00:53:54,153 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 00:53:54,153 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 00:53:54,153 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 00:53:54,153 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 00:53:54,154 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 00:53:54,154 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 00:53:54,154 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 00:53:54,217 INFO L276 IsEmpty]: Start isEmpty. Operand 2592 states. [2020-10-28 00:53:54,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-28 00:53:54,239 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 00:53:54,240 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 00:53:54,240 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 00:53:54,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 00:53:54,248 INFO L82 PathProgramCache]: Analyzing trace with hash -313719166, now seen corresponding path program 1 times [2020-10-28 00:53:54,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 00:53:54,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [728490367] [2020-10-28 00:53:54,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 00:53:54,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:53:55,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:53:55,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:53:55,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:53:55,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:53:55,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:53:55,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:53:56,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:53:56,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:53:56,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:53:56,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:53:56,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:53:56,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:53:56,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:04,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:54:04,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-10-28 00:54:04,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-28 00:54:04,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9815 [2020-10-28 00:54:04,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:54:04,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 00:54:04,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-28 00:54:04,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 00:54:04,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 00:54:06,458 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification that was a NOOP. DAG size: 499 [2020-10-28 00:54:06,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 00:54:06,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:54:06,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:06,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:54:06,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 00:54:06,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 00:54:06,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-10-28 00:54:06,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:54:06,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 00:54:06,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 00:54:06,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 00:54:06,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 00:54:06,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-28 00:54:06,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:54:06,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:06,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:54:06,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 00:54:06,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 00:54:06,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 00:54:06,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:54:06,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 00:54:06,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 00:54:06,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 00:54:06,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 00:54:06,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 00:54:06,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:54:06,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:06,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:54:06,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 00:54:06,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 00:54:06,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 00:54:06,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:54:06,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 00:54:06,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 00:54:06,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 00:54:06,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 00:54:06,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-28 00:54:06,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:54:06,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:06,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:06,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:06,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:06,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:06,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:06,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:06,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:06,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:06,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:07,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:07,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:07,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:07,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:07,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:07,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:07,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:07,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:07,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:07,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:07,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:07,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:07,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:07,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:07,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:07,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:07,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:07,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:07,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:07,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:08,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:08,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:08,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:08,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:08,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:08,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:08,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:08,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:08,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:08,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:08,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:08,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:08,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:08,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:54:08,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 00:54:08,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 43 [2020-10-28 00:54:08,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2102 [2020-10-28 00:54:08,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:54:08,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 00:54:08,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 111 [2020-10-28 00:54:08,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 00:54:08,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 00:54:09,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-28 00:54:09,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:54:09,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:10,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:54:10,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 00:54:10,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 00:54:10,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1037 [2020-10-28 00:54:10,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:54:10,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 00:54:10,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 00:54:10,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 00:54:10,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 00:54:10,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-28 00:54:10,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:54:10,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:10,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:10,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:54:10,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-28 00:54:10,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 00:54:10,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 00:54:10,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:54:10,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 00:54:10,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-28 00:54:10,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 00:54:10,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 00:54:10,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 00:54:10,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:54:10,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:54:10,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:54:10,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 00:54:10,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 00:54:10,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 00:54:10,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:54:10,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 00:54:10,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 00:54:10,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 00:54:10,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 00:54:10,380 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 00:54:10,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [728490367] [2020-10-28 00:54:10,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 00:54:10,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 00:54:10,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184910583] [2020-10-28 00:54:10,391 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 00:54:10,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 00:54:10,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 00:54:10,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-28 00:54:10,409 INFO L87 Difference]: Start difference. First operand 2592 states. Second operand 6 states. [2020-10-28 00:54:12,204 WARN L193 SmtUtils]: Spent 1.74 s on a formula simplification that was a NOOP. DAG size: 502 [2020-10-28 00:55:30,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 00:55:30,426 INFO L93 Difference]: Finished difference Result 6026 states and 9917 transitions. [2020-10-28 00:55:30,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 00:55:30,428 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 164 [2020-10-28 00:55:30,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 00:55:30,507 INFO L225 Difference]: With dead ends: 6026 [2020-10-28 00:55:30,508 INFO L226 Difference]: Without dead ends: 3444 [2020-10-28 00:55:30,556 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-10-28 00:55:30,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3444 states. [2020-10-28 00:55:31,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3444 to 2561. [2020-10-28 00:55:31,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2561 states. [2020-10-28 00:55:31,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2561 states to 2561 states and 3144 transitions. [2020-10-28 00:55:31,322 INFO L78 Accepts]: Start accepts. Automaton has 2561 states and 3144 transitions. Word has length 164 [2020-10-28 00:55:31,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 00:55:31,323 INFO L481 AbstractCegarLoop]: Abstraction has 2561 states and 3144 transitions. [2020-10-28 00:55:31,323 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 00:55:31,323 INFO L276 IsEmpty]: Start isEmpty. Operand 2561 states and 3144 transitions. [2020-10-28 00:55:31,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-10-28 00:55:31,336 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 00:55:31,337 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 00:55:31,337 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 00:55:31,337 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 00:55:31,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 00:55:31,338 INFO L82 PathProgramCache]: Analyzing trace with hash 617811930, now seen corresponding path program 1 times [2020-10-28 00:55:31,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 00:55:31,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2070347116] [2020-10-28 00:55:31,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 00:55:31,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:55:31,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:31,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:32,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:32,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:56:04,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:56:41,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:56:41,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-28 00:56:41,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 00:56:41,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69955 [2020-10-28 00:56:41,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:56:41,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 00:56:41,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 170 [2020-10-28 00:56:41,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-28 00:56:41,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 00:56:43,400 WARN L193 SmtUtils]: Spent 1.78 s on a formula simplification that was a NOOP. DAG size: 499 [2020-10-28 00:56:43,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 00:56:43,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:56:43,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:56:43,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:56:43,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 00:56:43,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 00:56:43,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-28 00:56:43,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:56:43,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 00:56:43,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 00:56:43,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 00:56:43,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 00:56:43,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-28 00:56:43,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:56:43,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:56:43,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:56:43,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 00:56:43,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 00:56:43,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 00:56:43,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:56:43,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 00:56:43,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 00:56:43,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 00:56:43,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 00:56:43,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 00:56:43,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:56:43,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:56:43,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:56:43,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 00:56:43,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 00:56:43,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 00:56:43,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:56:43,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 00:56:43,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 00:56:43,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 00:56:43,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 00:56:43,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-28 00:56:43,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:56:43,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:56:43,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:56:44,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:56:44,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:56:48,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:56:48,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 00:56:48,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 00:56:48,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5328 [2020-10-28 00:56:48,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:56:48,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 00:56:48,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-28 00:56:48,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-28 00:56:48,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 00:56:51,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-28 00:56:51,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:56:51,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:56:52,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:56:52,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 00:56:52,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 00:56:52,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 534 [2020-10-28 00:56:52,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:56:52,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 00:56:52,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 00:56:52,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 00:56:52,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 00:56:52,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-28 00:56:52,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:56:52,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:56:52,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:56:52,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:56:52,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:56:52,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:56:52,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:56:57,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:56:57,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-28 00:56:57,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 00:56:57,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-28 00:56:57,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:56:57,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 00:56:57,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-10-28 00:56:57,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 00:56:57,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 00:56:57,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 00:56:57,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:56:57,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:56:57,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:56:57,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 00:56:57,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 00:56:57,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 00:56:57,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:56:57,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 00:56:57,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 00:56:57,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 00:56:57,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 00:56:57,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 00:56:57,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:56:57,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:56:57,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:56:57,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 00:56:57,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 00:56:57,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 00:56:57,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:56:57,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 00:56:57,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 00:56:57,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 00:56:57,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 00:56:57,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-28 00:56:57,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:56:57,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:56:57,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:56:57,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 00:56:57,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 00:56:57,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 00:56:57,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:56:57,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 00:56:57,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 00:56:57,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 00:56:57,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 00:56:57,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 00:56:57,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:56:57,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:56:57,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:56:57,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 00:56:57,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 00:56:57,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 00:56:57,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:56:57,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 00:56:57,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 00:56:57,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 00:56:57,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 00:56:57,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 00:56:57,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:56:57,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:56:57,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:56:57,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 00:56:57,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 00:56:57,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 00:56:57,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:56:57,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 00:56:57,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 00:56:57,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 00:56:57,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 00:56:57,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 00:56:57,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:56:57,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:56:57,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:56:57,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 00:56:57,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 00:56:57,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 00:56:57,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:56:57,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 00:56:57,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 00:56:57,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 00:56:57,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 00:56:57,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-28 00:56:57,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:56:57,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:56:57,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:56:57,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 00:56:57,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 00:56:57,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 00:56:57,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:56:57,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 00:56:57,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 00:56:57,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 00:56:57,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 00:56:57,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-28 00:56:57,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:56:57,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:56:57,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:56:57,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 00:56:57,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 00:56:57,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 00:56:57,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:56:57,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 00:56:57,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 00:56:57,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 00:56:57,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 00:56:57,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-28 00:56:57,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:56:57,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:56:57,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:56:57,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 00:56:57,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 00:56:57,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 00:56:57,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:56:57,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 00:56:57,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 00:56:57,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 00:56:57,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 00:56:58,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 00:56:58,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:56:58,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:56:58,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:56:58,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 00:56:58,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 00:56:58,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 00:56:58,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:56:58,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 00:56:58,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 00:56:58,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 00:56:58,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 00:56:58,401 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 00:56:58,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2070347116] [2020-10-28 00:56:58,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 00:56:58,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-28 00:56:58,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149581313] [2020-10-28 00:56:58,407 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-28 00:56:58,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 00:56:58,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-28 00:56:58,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=264, Unknown=1, NotChecked=0, Total=306 [2020-10-28 00:56:58,410 INFO L87 Difference]: Start difference. First operand 2561 states and 3144 transitions. Second operand 18 states. [2020-10-28 00:57:00,306 WARN L193 SmtUtils]: Spent 1.80 s on a formula simplification that was a NOOP. DAG size: 502 [2020-10-28 00:57:08,652 WARN L193 SmtUtils]: Spent 2.20 s on a formula simplification that was a NOOP. DAG size: 537 [2020-10-28 00:57:14,810 WARN L193 SmtUtils]: Spent 1.88 s on a formula simplification that was a NOOP. DAG size: 503