/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.3-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 00:54:56,241 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 00:54:56,244 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 00:54:56,296 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 00:54:56,297 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 00:54:56,303 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 00:54:56,305 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 00:54:56,309 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 00:54:56,313 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 00:54:56,319 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 00:54:56,321 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 00:54:56,322 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 00:54:56,323 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 00:54:56,326 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 00:54:56,329 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 00:54:56,331 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 00:54:56,332 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 00:54:56,335 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 00:54:56,342 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 00:54:56,349 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 00:54:56,351 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 00:54:56,353 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 00:54:56,354 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 00:54:56,356 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 00:54:56,364 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 00:54:56,365 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 00:54:56,365 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 00:54:56,367 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 00:54:56,368 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 00:54:56,369 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-10-28 00:54:56,375 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 00:54:56,376 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 00:54:56,377 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 00:54:56,384 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 00:54:56,444 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 00:54:56,444 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 00:54:56,448 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 00:54:56,448 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 00:54:56,448 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 00:54:56,449 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 00:54:56,449 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 00:54:56,449 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 00:54:56,449 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 00:54:56,449 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 00:54:56,450 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 00:54:56,451 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 00:54:56,451 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 00:54:56,451 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 00:54:56,451 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 00:54:56,451 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 00:54:56,452 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 00:54:56,452 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 00:54:56,452 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 00:54:56,452 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 00:54:56,452 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 00:54:56,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 00:54:56,453 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 00:54:56,453 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 00:54:56,453 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 00:54:56,453 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 00:54:56,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 00:54:56,454 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 00:54:56,454 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 00:54:56,454 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-28 00:54:56,814 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 00:54:56,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 00:54:56,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 00:54:56,851 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 00:54:56,852 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 00:54:56,853 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/rekh_ctm.3-2.c [2020-10-28 00:54:56,937 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1d4dfba63/c6e85a2179f4424cb51cdb52eeeb4511/FLAG88fcda90a [2020-10-28 00:54:57,877 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 00:54:57,878 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/rekh_ctm.3-2.c [2020-10-28 00:54:57,928 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1d4dfba63/c6e85a2179f4424cb51cdb52eeeb4511/FLAG88fcda90a [2020-10-28 00:54:57,959 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1d4dfba63/c6e85a2179f4424cb51cdb52eeeb4511 [2020-10-28 00:54:57,963 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 00:54:57,973 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 00:54:57,979 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 00:54:57,979 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 00:54:57,983 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 00:54:57,984 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 12:54:57" (1/1) ... [2020-10-28 00:54:57,988 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@707fd674 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:54:57, skipping insertion in model container [2020-10-28 00:54:57,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 12:54:57" (1/1) ... [2020-10-28 00:54:57,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 00:54:58,095 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 00:54:59,029 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 00:54:59,059 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 00:54:59,444 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 00:54:59,682 INFO L208 MainTranslator]: Completed translation [2020-10-28 00:54:59,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:54:59 WrapperNode [2020-10-28 00:54:59,683 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 00:54:59,684 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 00:54:59,684 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 00:54:59,685 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 00:54:59,699 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:54:59" (1/1) ... [2020-10-28 00:54:59,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:54:59" (1/1) ... [2020-10-28 00:54:59,815 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:54:59" (1/1) ... [2020-10-28 00:54:59,816 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:54:59" (1/1) ... [2020-10-28 00:55:00,015 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:54:59" (1/1) ... [2020-10-28 00:55:00,057 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:54:59" (1/1) ... [2020-10-28 00:55:00,091 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:54:59" (1/1) ... [2020-10-28 00:55:00,128 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 00:55:00,130 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 00:55:00,130 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 00:55:00,130 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 00:55:00,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:54:59" (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 00:55:00,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 00:55:00,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 00:55:00,210 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 00:55:00,210 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-28 00:55:00,210 INFO L138 BoogieDeclarations]: Found implementation of procedure calibrate [2020-10-28 00:55:00,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2020-10-28 00:55:00,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2020-10-28 00:55:00,211 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2020-10-28 00:55:00,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_is_ENTER_button_pressed [2020-10-28 00:55:00,211 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2020-10-28 00:55:00,212 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2020-10-28 00:55:00,212 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2020-10-28 00:55:00,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_light [2020-10-28 00:55:00,213 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2020-10-28 00:55:00,213 INFO L138 BoogieDeclarations]: Found implementation of procedure transition [2020-10-28 00:55:00,214 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-28 00:55:00,214 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2020-10-28 00:55:00,214 INFO L138 BoogieDeclarations]: Found implementation of procedure Controller [2020-10-28 00:55:00,214 INFO L138 BoogieDeclarations]: Found implementation of procedure Reader [2020-10-28 00:55:00,215 INFO L138 BoogieDeclarations]: Found implementation of procedure Writer [2020-10-28 00:55:00,215 INFO L138 BoogieDeclarations]: Found implementation of procedure TapeMover [2020-10-28 00:55:00,215 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2020-10-28 00:55:00,215 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperController [2020-10-28 00:55:00,215 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2020-10-28 00:55:00,215 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperTapeMover [2020-10-28 00:55:00,216 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2020-10-28 00:55:00,216 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperReader [2020-10-28 00:55:00,216 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2020-10-28 00:55:00,216 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperWriter [2020-10-28 00:55:00,216 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2020-10-28 00:55:00,216 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2020-10-28 00:55:00,216 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2020-10-28 00:55:00,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2020-10-28 00:55:00,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2020-10-28 00:55:00,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2020-10-28 00:55:00,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_assert_i0 [2020-10-28 00:55:00,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2020-10-28 00:55:00,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2020-10-28 00:55:00,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2020-10-28 00:55:00,218 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 00:55:00,218 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2020-10-28 00:55:00,218 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2020-10-28 00:55:00,218 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2020-10-28 00:55:00,218 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2020-10-28 00:55:00,218 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2020-10-28 00:55:00,219 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2020-10-28 00:55:00,219 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2020-10-28 00:55:00,219 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2020-10-28 00:55:00,219 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2020-10-28 00:55:00,219 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2020-10-28 00:55:00,219 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2020-10-28 00:55:00,219 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_dir [2020-10-28 00:55:00,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_read [2020-10-28 00:55:00,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2020-10-28 00:55:00,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2020-10-28 00:55:00,221 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2020-10-28 00:55:00,221 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2020-10-28 00:55:00,221 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2020-10-28 00:55:00,221 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_job_count_Controller [2020-10-28 00:55:00,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_job_count_TapeMover [2020-10-28 00:55:00,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_job_count_Reader [2020-10-28 00:55:00,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_job_count_Writer [2020-10-28 00:55:00,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2020-10-28 00:55:00,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2020-10-28 00:55:00,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_speed [2020-10-28 00:55:00,223 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2020-10-28 00:55:00,223 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_speed [2020-10-28 00:55:00,223 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2020-10-28 00:55:00,223 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_speed [2020-10-28 00:55:00,223 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtcolorsensor_data_mode [2020-10-28 00:55:00,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtcolorsensor_mode [2020-10-28 00:55:00,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2020-10-28 00:55:00,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2020-10-28 00:55:00,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2020-10-28 00:55:00,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2020-10-28 00:55:00,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2020-10-28 00:55:00,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_threshold [2020-10-28 00:55:00,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2020-10-28 00:55:00,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2020-10-28 00:55:00,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2020-10-28 00:55:00,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_job_count_Controller [2020-10-28 00:55:00,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_job_count_TapeMover [2020-10-28 00:55:00,228 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_job_count_Reader [2020-10-28 00:55:00,228 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_job_count_Writer [2020-10-28 00:55:00,228 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2020-10-28 00:55:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 00:55:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 00:55:00,229 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 00:55:00,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 00:55:00,229 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2020-10-28 00:55:00,229 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_assert_i0 [2020-10-28 00:55:00,229 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2020-10-28 00:55:00,229 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2020-10-28 00:55:00,229 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2020-10-28 00:55:00,230 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2020-10-28 00:55:00,230 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2020-10-28 00:55:00,230 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-28 00:55:00,230 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 00:55:00,230 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-28 00:55:00,230 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-28 00:55:00,230 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cpu_lock [2020-10-28 00:55:00,231 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cpu_unlock [2020-10-28 00:55:00,231 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-28 00:55:00,231 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2020-10-28 00:55:00,231 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2020-10-28 00:55:00,231 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2020-10-28 00:55:00,231 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2020-10-28 00:55:00,231 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2020-10-28 00:55:00,232 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_speed [2020-10-28 00:55:00,232 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2020-10-28 00:55:00,232 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2020-10-28 00:55:00,232 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2020-10-28 00:55:00,233 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_speed [2020-10-28 00:55:00,233 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2020-10-28 00:55:00,234 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2020-10-28 00:55:00,234 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2020-10-28 00:55:00,234 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_speed [2020-10-28 00:55:00,235 INFO L130 BoogieDeclarations]: Found specification of procedure calibrate [2020-10-28 00:55:00,235 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2020-10-28 00:55:00,236 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtcolorsensor_data_mode [2020-10-28 00:55:00,236 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2020-10-28 00:55:00,236 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtcolorsensor_mode [2020-10-28 00:55:00,236 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2020-10-28 00:55:00,236 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2020-10-28 00:55:00,236 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2020-10-28 00:55:00,237 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_is_ENTER_button_pressed [2020-10-28 00:55:00,237 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2020-10-28 00:55:00,237 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2020-10-28 00:55:00,237 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2020-10-28 00:55:00,237 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_light [2020-10-28 00:55:00,238 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2020-10-28 00:55:00,239 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2020-10-28 00:55:00,241 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2020-10-28 00:55:00,242 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2020-10-28 00:55:00,242 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2020-10-28 00:55:00,242 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_dir [2020-10-28 00:55:00,242 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2020-10-28 00:55:00,243 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_read [2020-10-28 00:55:00,243 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2020-10-28 00:55:00,244 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2020-10-28 00:55:00,245 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2020-10-28 00:55:00,245 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2020-10-28 00:55:00,245 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_threshold [2020-10-28 00:55:00,245 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2020-10-28 00:55:00,246 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2020-10-28 00:55:00,246 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2020-10-28 00:55:00,246 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2020-10-28 00:55:00,246 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2020-10-28 00:55:00,246 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2020-10-28 00:55:00,246 INFO L130 BoogieDeclarations]: Found specification of procedure transition [2020-10-28 00:55:00,246 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-28 00:55:00,247 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2020-10-28 00:55:00,247 INFO L130 BoogieDeclarations]: Found specification of procedure Controller [2020-10-28 00:55:00,247 INFO L130 BoogieDeclarations]: Found specification of procedure Reader [2020-10-28 00:55:00,247 INFO L130 BoogieDeclarations]: Found specification of procedure Writer [2020-10-28 00:55:00,247 INFO L130 BoogieDeclarations]: Found specification of procedure TapeMover [2020-10-28 00:55:00,247 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_job_count_Controller [2020-10-28 00:55:00,247 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_job_count_Controller [2020-10-28 00:55:00,247 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2020-10-28 00:55:00,247 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperController [2020-10-28 00:55:00,248 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_job_count_TapeMover [2020-10-28 00:55:00,248 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_job_count_TapeMover [2020-10-28 00:55:00,248 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2020-10-28 00:55:00,248 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperTapeMover [2020-10-28 00:55:00,272 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_job_count_Reader [2020-10-28 00:55:00,272 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_job_count_Reader [2020-10-28 00:55:00,273 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2020-10-28 00:55:00,273 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperReader [2020-10-28 00:55:00,273 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_job_count_Writer [2020-10-28 00:55:00,273 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_job_count_Writer [2020-10-28 00:55:00,273 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2020-10-28 00:55:00,273 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperWriter [2020-10-28 00:55:00,273 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2020-10-28 00:55:00,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 00:55:00,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 00:55:00,274 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2020-10-28 00:55:00,274 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2020-10-28 00:55:00,274 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2020-10-28 00:55:00,274 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2020-10-28 00:55:00,274 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 00:55:00,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 00:55:00,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 00:55:00,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 00:55:00,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 00:55:21,527 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 00:55:21,528 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-28 00:55:21,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 12:55:21 BoogieIcfgContainer [2020-10-28 00:55:21,534 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 00:55:21,537 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 00:55:21,538 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 00:55:21,541 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 00:55:21,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 12:54:57" (1/3) ... [2020-10-28 00:55:21,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26e36280 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 12:55:21, skipping insertion in model container [2020-10-28 00:55:21,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:54:59" (2/3) ... [2020-10-28 00:55:21,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26e36280 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 12:55:21, skipping insertion in model container [2020-10-28 00:55:21,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 12:55:21" (3/3) ... [2020-10-28 00:55:21,545 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_ctm.3-2.c [2020-10-28 00:55:21,557 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 00:55:21,564 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 00:55:21,580 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 00:55:21,629 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 00:55:21,629 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 00:55:21,629 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 00:55:21,629 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 00:55:21,629 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 00:55:21,629 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 00:55:21,629 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 00:55:21,630 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 00:55:21,708 INFO L276 IsEmpty]: Start isEmpty. Operand 2593 states. [2020-10-28 00:55:21,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-28 00:55:21,739 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 00:55:21,740 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 00:55:21,740 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 00:55:21,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 00:55:21,749 INFO L82 PathProgramCache]: Analyzing trace with hash -1040695822, now seen corresponding path program 1 times [2020-10-28 00:55:21,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 00:55:21,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1380426098] [2020-10-28 00:55:21,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 00:55:22,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:55:22,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:22,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:22,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:22,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:22,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:23,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:23,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:23,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:23,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:23,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:23,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:23,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:23,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:29,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:55:29,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-10-28 00:55:29,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-28 00:55:29,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7185 [2020-10-28 00:55:29,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:55:29,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 00:55:29,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-28 00:55:29,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 00:55:29,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 00:55:31,325 WARN L193 SmtUtils]: Spent 1.65 s on a formula simplification that was a NOOP. DAG size: 499 [2020-10-28 00:55:31,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 00:55:31,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:55:31,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:31,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:55:31,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 00:55:31,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 00:55:31,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-28 00:55:31,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:55:31,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 00:55:31,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 00:55:31,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 00:55:31,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 00:55:31,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-28 00:55:31,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:55:31,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:31,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:55:31,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 00:55:31,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 00:55:31,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 00:55:31,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:55:31,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 00:55:31,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 00:55:31,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 00:55:31,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 00:55:31,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 00:55:31,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:55:31,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:31,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:55:31,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 00:55:31,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 00:55:31,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 00:55:31,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:55:31,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 00:55:31,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 00:55:31,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 00:55:31,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 00:55:31,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-28 00:55:31,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:55:31,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:31,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:31,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:31,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:31,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:31,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:31,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:31,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:31,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:31,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:31,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:31,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:31,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:31,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:31,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:31,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:31,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:31,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:31,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:31,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:32,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:32,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:32,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:32,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:32,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:32,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:32,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:32,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:32,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:32,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:32,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:32,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:32,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:32,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:32,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:32,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:33,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:33,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:33,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:33,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:33,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:33,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:33,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:33,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:33,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:55:33,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 00:55:33,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 44 [2020-10-28 00:55:33,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1978 [2020-10-28 00:55:33,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:55:33,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 00:55:33,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 111 [2020-10-28 00:55:33,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 00:55:33,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 00:55:33,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-28 00:55:33,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:55:33,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:34,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:55:34,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 00:55:34,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 00:55:34,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 852 [2020-10-28 00:55:34,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:55:34,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 00:55:34,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 00:55:34,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 00:55:34,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 00:55:34,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-28 00:55:34,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:55:34,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:34,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:34,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:55:34,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-28 00:55:34,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 00:55:34,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 00:55:34,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:55:34,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 00:55:34,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-28 00:55:34,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 00:55:34,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 00:55:34,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 00:55:34,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:55:34,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:55:34,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:55:34,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 00:55:34,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 00:55:34,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 00:55:34,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:55:34,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 00:55:34,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 00:55:34,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 00:55:34,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 00:55:34,729 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 00:55:34,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1380426098] [2020-10-28 00:55:34,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 00:55:34,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 00:55:34,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187540095] [2020-10-28 00:55:34,739 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 00:55:34,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 00:55:34,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 00:55:34,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-28 00:55:34,755 INFO L87 Difference]: Start difference. First operand 2593 states. Second operand 6 states. [2020-10-28 00:55:36,517 WARN L193 SmtUtils]: Spent 1.71 s on a formula simplification that was a NOOP. DAG size: 502 [2020-10-28 00:56:58,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 00:56:58,646 INFO L93 Difference]: Finished difference Result 6005 states and 9857 transitions. [2020-10-28 00:56:58,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 00:56:58,649 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 164 [2020-10-28 00:56:58,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 00:56:58,721 INFO L225 Difference]: With dead ends: 6005 [2020-10-28 00:56:58,721 INFO L226 Difference]: Without dead ends: 3422 [2020-10-28 00:56:58,766 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-10-28 00:56:58,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3422 states. [2020-10-28 00:56:59,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3422 to 2562. [2020-10-28 00:56:59,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2562 states. [2020-10-28 00:56:59,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2562 states to 2562 states and 3145 transitions. [2020-10-28 00:56:59,384 INFO L78 Accepts]: Start accepts. Automaton has 2562 states and 3145 transitions. Word has length 164 [2020-10-28 00:56:59,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 00:56:59,385 INFO L481 AbstractCegarLoop]: Abstraction has 2562 states and 3145 transitions. [2020-10-28 00:56:59,385 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 00:56:59,385 INFO L276 IsEmpty]: Start isEmpty. Operand 2562 states and 3145 transitions. [2020-10-28 00:56:59,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-10-28 00:56:59,394 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 00:56:59,395 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 00:56:59,395 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 00:56:59,395 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 00:56:59,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 00:56:59,396 INFO L82 PathProgramCache]: Analyzing trace with hash -1910384005, now seen corresponding path program 1 times [2020-10-28 00:56:59,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 00:56:59,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1348346259] [2020-10-28 00:56:59,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 00:56:59,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:56:59,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:57:00,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:57:00,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:57:00,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:57:28,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:57:44,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:57:44,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-28 00:57:44,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 00:57:44,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45061 [2020-10-28 00:57:44,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:57:44,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 00:57:44,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 170 [2020-10-28 00:57:44,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-28 00:57:44,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 00:57:46,402 WARN L193 SmtUtils]: Spent 1.64 s on a formula simplification that was a NOOP. DAG size: 499 [2020-10-28 00:57:46,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 00:57:46,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:57:46,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:57:46,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:57:46,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 00:57:46,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 00:57:46,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-28 00:57:46,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:57:46,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 00:57:46,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 00:57:46,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 00:57:46,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 00:57:46,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-28 00:57:46,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:57:46,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:57:46,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:57:46,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 00:57:46,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 00:57:46,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 00:57:46,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:57:46,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 00:57:46,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 00:57:46,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 00:57:46,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 00:57:46,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 00:57:46,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:57:46,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:57:46,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:57:46,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 00:57:46,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 00:57:46,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 00:57:46,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:57:46,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 00:57:46,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 00:57:46,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 00:57:46,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 00:57:46,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-28 00:57:46,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:57:46,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:57:47,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:57:49,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:57:52,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:57:52,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 00:57:52,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 00:57:52,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5916 [2020-10-28 00:57:52,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:57:52,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 00:57:52,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-28 00:57:52,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-28 00:57:52,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 00:57:53,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-28 00:57:53,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:57:53,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:57:54,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:57:54,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 00:57:54,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 00:57:54,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 954 [2020-10-28 00:57:54,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:57:54,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 00:57:54,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 00:57:54,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 00:57:54,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 00:57:54,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-28 00:57:54,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:57:54,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:57:54,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:57:54,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:57:54,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:57:54,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:57:54,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:57:59,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:57:59,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-28 00:57:59,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 00:57:59,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-28 00:57:59,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:57:59,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 00:57:59,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-10-28 00:57:59,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 00:57:59,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 00:57:59,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 00:57:59,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:57:59,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:57:59,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:57:59,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 00:57:59,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 00:57:59,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 00:57:59,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:57:59,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 00:57:59,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 00:57:59,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 00:57:59,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 00:57:59,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 00:57:59,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:57:59,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:57:59,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:57:59,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 00:57:59,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 00:57:59,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 00:57:59,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:57:59,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 00:57:59,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 00:57:59,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 00:57:59,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 00:57:59,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-28 00:57:59,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:57:59,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:57:59,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:57:59,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 00:57:59,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 00:57:59,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 00:57:59,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:57:59,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 00:57:59,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 00:57:59,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 00:57:59,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 00:57:59,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 00:57:59,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:57:59,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:57:59,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:57:59,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 00:57:59,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 00:57:59,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 00:57:59,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:57:59,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 00:57:59,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 00:57:59,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 00:57:59,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 00:57:59,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 00:57:59,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:57:59,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:57:59,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:57:59,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 00:57:59,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 00:57:59,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 00:57:59,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:57:59,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 00:57:59,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 00:57:59,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 00:57:59,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 00:57:59,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 00:57:59,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:57:59,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:57:59,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:57:59,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 00:57:59,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 00:57:59,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-28 00:57:59,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:57:59,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 00:57:59,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 00:57:59,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 00:57:59,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 00:57:59,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-28 00:57:59,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:57:59,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:57:59,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:57:59,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 00:57:59,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 00:57:59,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 00:57:59,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:57:59,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 00:57:59,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 00:57:59,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 00:57:59,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 00:57:59,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-28 00:57:59,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:57:59,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:57:59,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:57:59,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 00:57:59,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 00:57:59,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 00:57:59,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:57:59,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 00:57:59,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 00:57:59,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 00:57:59,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 00:57:59,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-28 00:57:59,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:57:59,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:57:59,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:57:59,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 00:57:59,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 00:57:59,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 00:57:59,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:57:59,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 00:57:59,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 00:57:59,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 00:57:59,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 00:58:00,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 00:58:00,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 00:58:00,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 00:58:00,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 00:58:00,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 00:58:00,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 00:58:00,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 00:58:00,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 00:58:00,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 00:58:00,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 00:58:00,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 00:58:00,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 00:58:00,274 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 00:58:00,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1348346259] [2020-10-28 00:58:00,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 00:58:00,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-28 00:58:00,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189743617] [2020-10-28 00:58:00,281 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-28 00:58:00,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 00:58:00,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-28 00:58:00,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2020-10-28 00:58:00,285 INFO L87 Difference]: Start difference. First operand 2562 states and 3145 transitions. Second operand 19 states. [2020-10-28 00:58:02,164 WARN L193 SmtUtils]: Spent 1.76 s on a formula simplification that was a NOOP. DAG size: 502 [2020-10-28 00:58:06,327 WARN L193 SmtUtils]: Spent 2.10 s on a formula simplification that was a NOOP. DAG size: 536 [2020-10-28 00:58:12,487 WARN L193 SmtUtils]: Spent 1.82 s on a formula simplification that was a NOOP. DAG size: 506 [2020-10-28 00:58:14,739 WARN L193 SmtUtils]: Spent 1.79 s on a formula simplification that was a NOOP. DAG size: 503