/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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 --traceabstraction.use.minimal.unsat.core.enumeration false -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-89f541c [2020-08-27 22:00:41,718 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-27 22:00:41,723 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-27 22:00:41,770 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-27 22:00:41,770 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-27 22:00:41,772 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-27 22:00:41,773 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-27 22:00:41,776 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-27 22:00:41,778 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-27 22:00:41,779 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-27 22:00:41,780 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-27 22:00:41,781 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-27 22:00:41,782 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-27 22:00:41,783 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-27 22:00:41,784 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-27 22:00:41,786 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-27 22:00:41,787 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-27 22:00:41,788 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-27 22:00:41,790 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-27 22:00:41,792 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-27 22:00:41,794 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-27 22:00:41,796 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-27 22:00:41,798 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-27 22:00:41,799 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-27 22:00:41,802 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-27 22:00:41,802 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-27 22:00:41,803 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-27 22:00:41,804 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-27 22:00:41,804 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-27 22:00:41,806 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-27 22:00:41,806 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-27 22:00:41,807 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-27 22:00:41,808 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-27 22:00:41,809 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-27 22:00:41,810 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-27 22:00:41,811 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-27 22:00:41,812 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-27 22:00:41,812 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-27 22:00:41,812 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-27 22:00:41,813 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-27 22:00:41,814 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-27 22:00:41,815 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 [2020-08-27 22:00:41,843 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-27 22:00:41,843 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-27 22:00:41,845 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-27 22:00:41,845 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-27 22:00:41,845 INFO L138 SettingsManager]: * Use SBE=true [2020-08-27 22:00:41,845 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-27 22:00:41,846 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-27 22:00:41,846 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-27 22:00:41,846 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-27 22:00:41,846 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-27 22:00:41,846 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-27 22:00:41,847 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-27 22:00:41,847 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-27 22:00:41,847 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-27 22:00:41,847 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-27 22:00:41,847 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-27 22:00:41,847 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-27 22:00:41,848 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-27 22:00:41,848 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-27 22:00:41,848 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-27 22:00:41,848 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-27 22:00:41,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-27 22:00:41,849 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-27 22:00:41,849 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-27 22:00:41,849 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-27 22:00:41,849 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-27 22:00:41,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-27 22:00:41,850 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-27 22:00:41,850 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-27 22:00:41,850 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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.traceabstraction: Use minimal unsat core enumeration -> false [2020-08-27 22:00:42,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-27 22:00:42,353 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-27 22:00:42,358 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-27 22:00:42,360 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-27 22:00:42,361 INFO L275 PluginConnector]: CDTParser initialized [2020-08-27 22:00:42,362 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2020-08-27 22:00:42,456 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/31c107260/f1eb385719444b5888257d4ec0cf4f37/FLAG75c615b80 [2020-08-27 22:00:43,068 INFO L306 CDTParser]: Found 1 translation units. [2020-08-27 22:00:43,069 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2020-08-27 22:00:43,087 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/31c107260/f1eb385719444b5888257d4ec0cf4f37/FLAG75c615b80 [2020-08-27 22:00:43,400 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/31c107260/f1eb385719444b5888257d4ec0cf4f37 [2020-08-27 22:00:43,416 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-27 22:00:43,418 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-27 22:00:43,419 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-27 22:00:43,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-27 22:00:43,424 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-27 22:00:43,425 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 10:00:43" (1/1) ... [2020-08-27 22:00:43,430 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4297b1f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:00:43, skipping insertion in model container [2020-08-27 22:00:43,430 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 10:00:43" (1/1) ... [2020-08-27 22:00:43,440 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-27 22:00:43,480 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-27 22:00:43,746 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-27 22:00:43,757 INFO L203 MainTranslator]: Completed pre-run [2020-08-27 22:00:43,806 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-27 22:00:43,929 INFO L208 MainTranslator]: Completed translation [2020-08-27 22:00:43,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:00:43 WrapperNode [2020-08-27 22:00:43,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-27 22:00:43,931 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-27 22:00:43,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-27 22:00:43,932 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-27 22:00:43,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:00:43" (1/1) ... [2020-08-27 22:00:43,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:00:43" (1/1) ... [2020-08-27 22:00:43,956 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:00:43" (1/1) ... [2020-08-27 22:00:43,956 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:00:43" (1/1) ... [2020-08-27 22:00:43,967 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:00:43" (1/1) ... [2020-08-27 22:00:43,979 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:00:43" (1/1) ... [2020-08-27 22:00:43,982 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:00:43" (1/1) ... [2020-08-27 22:00:43,986 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-27 22:00:43,986 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-27 22:00:43,986 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-27 22:00:43,987 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-27 22:00:43,988 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:00:43" (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 [2020-08-27 22:00:44,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-27 22:00:44,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-27 22:00:44,080 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-08-27 22:00:44,080 INFO L138 BoogieDeclarations]: Found implementation of procedure update_fifo_q [2020-08-27 22:00:44,081 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2020-08-27 22:00:44,081 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2020-08-27 22:00:44,081 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2020-08-27 22:00:44,081 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2020-08-27 22:00:44,081 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2020-08-27 22:00:44,082 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-08-27 22:00:44,082 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-08-27 22:00:44,083 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-08-27 22:00:44,083 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-08-27 22:00:44,083 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-08-27 22:00:44,083 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-08-27 22:00:44,084 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-08-27 22:00:44,085 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-08-27 22:00:44,085 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-08-27 22:00:44,085 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-08-27 22:00:44,086 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-08-27 22:00:44,087 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-08-27 22:00:44,087 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-27 22:00:44,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-27 22:00:44,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-27 22:00:44,087 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-08-27 22:00:44,088 INFO L130 BoogieDeclarations]: Found specification of procedure update_fifo_q [2020-08-27 22:00:44,088 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2020-08-27 22:00:44,090 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2020-08-27 22:00:44,090 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2020-08-27 22:00:44,090 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2020-08-27 22:00:44,090 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2020-08-27 22:00:44,090 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-08-27 22:00:44,091 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-08-27 22:00:44,091 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-08-27 22:00:44,091 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-08-27 22:00:44,092 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-08-27 22:00:44,092 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-08-27 22:00:44,092 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-08-27 22:00:44,092 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-08-27 22:00:44,092 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-08-27 22:00:44,092 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-08-27 22:00:44,092 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-08-27 22:00:44,093 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-08-27 22:00:44,093 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-27 22:00:44,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-27 22:00:44,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-27 22:00:44,657 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume 1 == ~q_free~0;~c_dr_st~0 := 2;~c_dr_pc~0 := 2;~a_t~0 := ~a~0; [2020-08-27 22:00:44,657 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !(1 == ~q_free~0); [2020-08-27 22:00:44,680 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-27 22:00:44,681 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-27 22:00:44,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 10:00:44 BoogieIcfgContainer [2020-08-27 22:00:44,688 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-27 22:00:44,690 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-27 22:00:44,690 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-27 22:00:44,694 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-27 22:00:44,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 10:00:43" (1/3) ... [2020-08-27 22:00:44,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c4a1cfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 10:00:44, skipping insertion in model container [2020-08-27 22:00:44,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:00:43" (2/3) ... [2020-08-27 22:00:44,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c4a1cfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 10:00:44, skipping insertion in model container [2020-08-27 22:00:44,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 10:00:44" (3/3) ... [2020-08-27 22:00:44,699 INFO L109 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil.c [2020-08-27 22:00:44,711 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-27 22:00:44,723 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-27 22:00:44,742 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-27 22:00:44,772 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-27 22:00:44,772 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-27 22:00:44,772 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-27 22:00:44,772 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-27 22:00:44,772 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-27 22:00:44,773 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-27 22:00:44,773 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-27 22:00:44,773 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-27 22:00:44,801 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states. [2020-08-27 22:00:44,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-08-27 22:00:44,815 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 22:00:44,817 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] [2020-08-27 22:00:44,818 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 22:00:44,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 22:00:44,826 INFO L82 PathProgramCache]: Analyzing trace with hash 1427944937, now seen corresponding path program 1 times [2020-08-27 22:00:44,836 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 22:00:44,837 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [790283261] [2020-08-27 22:00:44,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 22:00:45,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:45,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 22:00:45,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:45,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-27 22:00:45,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:45,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-27 22:00:45,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:45,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-27 22:00:45,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:45,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-27 22:00:45,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:45,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-27 22:00:45,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:45,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-27 22:00:45,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:45,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-27 22:00:45,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:45,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-27 22:00:45,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:45,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-27 22:00:45,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:45,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 22:00:45,607 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [790283261] [2020-08-27 22:00:45,609 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-27 22:00:45,610 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-27 22:00:45,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617269110] [2020-08-27 22:00:45,618 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-27 22:00:45,618 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 22:00:45,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-27 22:00:45,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-08-27 22:00:45,640 INFO L87 Difference]: Start difference. First operand 156 states. Second operand 10 states. [2020-08-27 22:00:50,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 22:00:50,213 INFO L93 Difference]: Finished difference Result 630 states and 1050 transitions. [2020-08-27 22:00:50,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-08-27 22:00:50,216 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 78 [2020-08-27 22:00:50,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 22:00:50,252 INFO L225 Difference]: With dead ends: 630 [2020-08-27 22:00:50,252 INFO L226 Difference]: Without dead ends: 476 [2020-08-27 22:00:50,260 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=186, Invalid=516, Unknown=0, NotChecked=0, Total=702 [2020-08-27 22:00:50,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2020-08-27 22:00:50,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 271. [2020-08-27 22:00:50,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-08-27 22:00:50,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 363 transitions. [2020-08-27 22:00:50,442 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 363 transitions. Word has length 78 [2020-08-27 22:00:50,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 22:00:50,443 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 363 transitions. [2020-08-27 22:00:50,443 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-27 22:00:50,444 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 363 transitions. [2020-08-27 22:00:50,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-08-27 22:00:50,465 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 22:00:50,465 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] [2020-08-27 22:00:50,469 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-27 22:00:50,469 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 22:00:50,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 22:00:50,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1440144215, now seen corresponding path program 1 times [2020-08-27 22:00:50,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 22:00:50,470 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [718377152] [2020-08-27 22:00:50,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 22:00:50,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:50,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 22:00:50,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:50,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-27 22:00:50,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:50,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-27 22:00:50,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:50,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-27 22:00:50,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:50,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-27 22:00:50,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:50,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-27 22:00:50,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:50,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-27 22:00:50,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:50,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-27 22:00:50,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:50,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-27 22:00:50,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:50,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-27 22:00:50,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:50,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 22:00:50,851 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [718377152] [2020-08-27 22:00:50,851 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-27 22:00:50,852 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-27 22:00:50,852 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643089339] [2020-08-27 22:00:50,854 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-27 22:00:50,855 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 22:00:50,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-27 22:00:50,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-27 22:00:50,855 INFO L87 Difference]: Start difference. First operand 271 states and 363 transitions. Second operand 10 states. [2020-08-27 22:00:55,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 22:00:55,935 INFO L93 Difference]: Finished difference Result 924 states and 1361 transitions. [2020-08-27 22:00:55,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-08-27 22:00:55,936 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 78 [2020-08-27 22:00:55,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 22:00:55,944 INFO L225 Difference]: With dead ends: 924 [2020-08-27 22:00:55,945 INFO L226 Difference]: Without dead ends: 680 [2020-08-27 22:00:55,961 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=222, Invalid=708, Unknown=0, NotChecked=0, Total=930 [2020-08-27 22:00:55,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2020-08-27 22:00:56,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 416. [2020-08-27 22:00:56,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 416 states. [2020-08-27 22:00:56,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 562 transitions. [2020-08-27 22:00:56,046 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 562 transitions. Word has length 78 [2020-08-27 22:00:56,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 22:00:56,047 INFO L479 AbstractCegarLoop]: Abstraction has 416 states and 562 transitions. [2020-08-27 22:00:56,047 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-27 22:00:56,047 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 562 transitions. [2020-08-27 22:00:56,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-08-27 22:00:56,062 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 22:00:56,063 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] [2020-08-27 22:00:56,063 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-27 22:00:56,063 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 22:00:56,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 22:00:56,064 INFO L82 PathProgramCache]: Analyzing trace with hash -53358805, now seen corresponding path program 1 times [2020-08-27 22:00:56,064 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 22:00:56,064 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1501415371] [2020-08-27 22:00:56,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 22:00:56,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:56,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 22:00:56,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:56,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-27 22:00:56,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:56,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-27 22:00:56,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:56,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-27 22:00:56,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:56,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-27 22:00:56,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:56,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-27 22:00:56,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:56,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-27 22:00:56,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:56,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-27 22:00:56,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:56,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-27 22:00:56,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:56,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-27 22:00:56,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:00:56,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 22:00:56,408 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1501415371] [2020-08-27 22:00:56,408 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-27 22:00:56,408 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-27 22:00:56,408 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491944404] [2020-08-27 22:00:56,409 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-27 22:00:56,409 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 22:00:56,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-27 22:00:56,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-08-27 22:00:56,410 INFO L87 Difference]: Start difference. First operand 416 states and 562 transitions. Second operand 10 states. [2020-08-27 22:01:03,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 22:01:03,710 INFO L93 Difference]: Finished difference Result 1984 states and 2933 transitions. [2020-08-27 22:01:03,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-08-27 22:01:03,711 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 78 [2020-08-27 22:01:03,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 22:01:03,722 INFO L225 Difference]: With dead ends: 1984 [2020-08-27 22:01:03,722 INFO L226 Difference]: Without dead ends: 1611 [2020-08-27 22:01:03,726 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=259, Invalid=931, Unknown=0, NotChecked=0, Total=1190 [2020-08-27 22:01:03,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1611 states. [2020-08-27 22:01:03,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1611 to 1175. [2020-08-27 22:01:03,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1175 states. [2020-08-27 22:01:03,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1175 states to 1175 states and 1572 transitions. [2020-08-27 22:01:03,890 INFO L78 Accepts]: Start accepts. Automaton has 1175 states and 1572 transitions. Word has length 78 [2020-08-27 22:01:03,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 22:01:03,894 INFO L479 AbstractCegarLoop]: Abstraction has 1175 states and 1572 transitions. [2020-08-27 22:01:03,894 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-27 22:01:03,894 INFO L276 IsEmpty]: Start isEmpty. Operand 1175 states and 1572 transitions. [2020-08-27 22:01:03,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-08-27 22:01:03,899 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 22:01:03,900 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] [2020-08-27 22:01:03,900 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-27 22:01:03,900 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 22:01:03,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 22:01:03,901 INFO L82 PathProgramCache]: Analyzing trace with hash -1828215755, now seen corresponding path program 1 times [2020-08-27 22:01:03,901 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 22:01:03,901 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1258797302] [2020-08-27 22:01:03,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 22:01:03,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:04,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 22:01:04,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:04,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-27 22:01:04,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:04,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-27 22:01:04,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:04,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-27 22:01:04,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:04,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-27 22:01:04,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:04,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-27 22:01:04,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:04,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-27 22:01:04,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:04,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-27 22:01:04,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:04,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-27 22:01:04,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:04,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-08-27 22:01:04,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:04,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 22:01:04,273 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1258797302] [2020-08-27 22:01:04,273 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-27 22:01:04,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-27 22:01:04,275 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599607987] [2020-08-27 22:01:04,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-27 22:01:04,278 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 22:01:04,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-27 22:01:04,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-08-27 22:01:04,278 INFO L87 Difference]: Start difference. First operand 1175 states and 1572 transitions. Second operand 11 states. [2020-08-27 22:01:07,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 22:01:07,347 INFO L93 Difference]: Finished difference Result 2733 states and 3855 transitions. [2020-08-27 22:01:07,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-27 22:01:07,348 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 79 [2020-08-27 22:01:07,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 22:01:07,362 INFO L225 Difference]: With dead ends: 2733 [2020-08-27 22:01:07,362 INFO L226 Difference]: Without dead ends: 1601 [2020-08-27 22:01:07,367 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2020-08-27 22:01:07,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2020-08-27 22:01:07,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 1195. [2020-08-27 22:01:07,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1195 states. [2020-08-27 22:01:07,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1195 states to 1195 states and 1587 transitions. [2020-08-27 22:01:07,486 INFO L78 Accepts]: Start accepts. Automaton has 1195 states and 1587 transitions. Word has length 79 [2020-08-27 22:01:07,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 22:01:07,487 INFO L479 AbstractCegarLoop]: Abstraction has 1195 states and 1587 transitions. [2020-08-27 22:01:07,487 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-27 22:01:07,488 INFO L276 IsEmpty]: Start isEmpty. Operand 1195 states and 1587 transitions. [2020-08-27 22:01:07,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-08-27 22:01:07,490 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 22:01:07,490 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] [2020-08-27 22:01:07,490 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-27 22:01:07,491 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 22:01:07,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 22:01:07,491 INFO L82 PathProgramCache]: Analyzing trace with hash -1580069261, now seen corresponding path program 1 times [2020-08-27 22:01:07,492 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 22:01:07,492 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1753206241] [2020-08-27 22:01:07,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 22:01:07,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:07,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 22:01:07,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:07,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-27 22:01:07,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:07,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-27 22:01:07,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:07,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-27 22:01:07,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:07,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-27 22:01:07,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:07,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-27 22:01:07,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:07,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-27 22:01:07,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:07,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-27 22:01:07,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:07,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-27 22:01:07,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:07,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-08-27 22:01:07,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 22:01:07,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 22:01:07,849 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1753206241] [2020-08-27 22:01:07,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-27 22:01:07,849 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-27 22:01:07,849 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343227579] [2020-08-27 22:01:07,850 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-27 22:01:07,850 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 22:01:07,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-27 22:01:07,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-08-27 22:01:07,852 INFO L87 Difference]: Start difference. First operand 1195 states and 1587 transitions. Second operand 10 states. [2020-08-27 22:01:13,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 22:01:13,133 INFO L93 Difference]: Finished difference Result 4057 states and 5875 transitions. [2020-08-27 22:01:13,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-08-27 22:01:13,134 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 79 [2020-08-27 22:01:13,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 22:01:13,136 INFO L225 Difference]: With dead ends: 4057 [2020-08-27 22:01:13,136 INFO L226 Difference]: Without dead ends: 0 [2020-08-27 22:01:13,150 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=168, Invalid=534, Unknown=0, NotChecked=0, Total=702 [2020-08-27 22:01:13,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-27 22:01:13,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-27 22:01:13,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-27 22:01:13,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-27 22:01:13,152 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 79 [2020-08-27 22:01:13,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 22:01:13,152 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-27 22:01:13,152 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-27 22:01:13,152 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-27 22:01:13,153 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-27 22:01:13,153 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-27 22:01:13,156 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-27 22:01:13,456 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 6 [2020-08-27 22:01:13,610 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 12 [2020-08-27 22:01:13,843 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 6 [2020-08-27 22:01:14,238 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 95 [2020-08-27 22:01:14,531 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 95 [2020-08-27 22:01:14,745 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 89 [2020-08-27 22:01:14,952 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 95 [2020-08-27 22:01:15,106 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 87 [2020-08-27 22:01:15,232 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2020-08-27 22:01:15,407 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2020-08-27 22:01:15,599 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 95 [2020-08-27 22:01:15,771 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 91 [2020-08-27 22:01:16,033 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 86 [2020-08-27 22:01:16,141 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2020-08-27 22:01:16,284 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 86 [2020-08-27 22:01:16,391 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 87 [2020-08-27 22:01:16,506 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2020-08-27 22:01:16,737 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 91 [2020-08-27 22:01:16,970 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 86 [2020-08-27 22:01:17,149 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 6 [2020-08-27 22:01:18,192 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2020-08-27 22:01:18,326 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 65 [2020-08-27 22:01:18,542 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2020-08-27 22:01:18,730 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 70 [2020-08-27 22:01:18,926 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2020-08-27 22:01:19,052 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2020-08-27 22:01:19,192 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2020-08-27 22:01:19,381 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2020-08-27 22:01:19,569 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2020-08-27 22:01:19,728 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 75 [2020-08-27 22:01:19,888 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 65 [2020-08-27 22:01:20,011 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2020-08-27 22:01:20,153 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 72 [2020-08-27 22:01:20,269 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 64 [2020-08-27 22:01:20,398 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2020-08-27 22:01:20,536 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 72 [2020-08-27 22:01:20,785 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 75 [2020-08-27 22:01:21,047 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2020-08-27 22:01:21,287 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 6 [2020-08-27 22:01:29,286 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2020-08-27 22:01:29,537 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2020-08-27 22:01:29,709 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2020-08-27 22:01:30,275 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2020-08-27 22:01:30,466 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2020-08-27 22:01:31,393 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2020-08-27 22:01:31,745 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2020-08-27 22:01:31,850 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2020-08-27 22:01:32,140 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2020-08-27 22:01:32,247 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2020-08-27 22:01:32,353 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2020-08-27 22:01:32,535 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2020-08-27 22:01:33,051 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 6 [2020-08-27 22:01:33,396 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 79 [2020-08-27 22:01:33,500 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 65 [2020-08-27 22:01:33,688 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 79 [2020-08-27 22:01:33,869 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 70 [2020-08-27 22:01:34,056 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 79 [2020-08-27 22:01:34,180 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2020-08-27 22:01:34,320 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 72 [2020-08-27 22:01:34,505 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 72 [2020-08-27 22:01:34,693 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 79 [2020-08-27 22:01:34,851 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 74 [2020-08-27 22:01:35,010 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 65 [2020-08-27 22:01:35,132 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2020-08-27 22:01:35,268 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71 [2020-08-27 22:01:35,383 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 64 [2020-08-27 22:01:35,506 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2020-08-27 22:01:35,643 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71 [2020-08-27 22:01:35,890 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 74 [2020-08-27 22:01:36,135 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2020-08-27 22:01:42,607 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 95 [2020-08-27 22:01:42,845 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 95 [2020-08-27 22:01:43,026 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 89 [2020-08-27 22:01:43,197 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 95 [2020-08-27 22:01:43,399 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2020-08-27 22:01:43,549 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2020-08-27 22:01:43,718 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 95 [2020-08-27 22:01:43,874 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 91 [2020-08-27 22:01:44,196 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2020-08-27 22:01:44,324 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 86 [2020-08-27 22:01:44,522 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2020-08-27 22:01:44,742 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 91