/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-eb0fd7c [2020-09-21 10:31:09,321 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 10:31:09,325 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 10:31:09,352 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 10:31:09,353 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 10:31:09,354 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 10:31:09,355 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 10:31:09,357 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 10:31:09,359 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 10:31:09,360 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 10:31:09,361 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 10:31:09,362 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 10:31:09,362 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 10:31:09,363 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 10:31:09,364 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 10:31:09,366 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 10:31:09,367 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 10:31:09,368 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 10:31:09,370 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 10:31:09,372 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 10:31:09,373 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 10:31:09,374 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 10:31:09,376 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 10:31:09,376 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 10:31:09,379 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 10:31:09,379 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 10:31:09,380 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 10:31:09,381 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 10:31:09,381 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 10:31:09,382 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 10:31:09,382 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 10:31:09,383 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 10:31:09,384 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 10:31:09,385 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 10:31:09,386 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 10:31:09,386 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 10:31:09,387 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 10:31:09,387 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 10:31:09,387 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 10:31:09,389 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 10:31:09,390 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 10:31:09,391 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 [2020-09-21 10:31:09,419 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 10:31:09,420 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 10:31:09,421 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 10:31:09,421 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 10:31:09,421 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 10:31:09,422 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 10:31:09,422 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 10:31:09,422 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 10:31:09,422 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 10:31:09,422 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 10:31:09,423 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 10:31:09,423 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 10:31:09,423 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 10:31:09,423 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 10:31:09,423 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 10:31:09,424 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 10:31:09,424 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 10:31:09,424 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 10:31:09,424 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 10:31:09,424 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 10:31:09,425 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 10:31:09,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 10:31:09,425 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 10:31:09,425 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 10:31:09,425 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 10:31:09,426 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 10:31:09,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 10:31:09,426 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 10:31:09,426 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 10:31:09,426 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 [2020-09-21 10:31:09,903 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 10:31:09,922 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 10:31:09,926 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 10:31:09,928 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 10:31:09,928 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 10:31:09,929 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2020-09-21 10:31:10,004 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aded70ee8/22766e95a7824fe389aed70a800768cc/FLAG510d72b8c [2020-09-21 10:31:10,556 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 10:31:10,557 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/pc_sfifo_3.cil.c [2020-09-21 10:31:10,574 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aded70ee8/22766e95a7824fe389aed70a800768cc/FLAG510d72b8c [2020-09-21 10:31:10,866 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aded70ee8/22766e95a7824fe389aed70a800768cc [2020-09-21 10:31:10,879 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 10:31:10,884 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 10:31:10,885 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 10:31:10,885 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 10:31:10,889 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 10:31:10,890 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 10:31:10" (1/1) ... [2020-09-21 10:31:10,895 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73d9e61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:31:10, skipping insertion in model container [2020-09-21 10:31:10,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 10:31:10" (1/1) ... [2020-09-21 10:31:10,904 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 10:31:10,946 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 10:31:11,216 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 10:31:11,227 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 10:31:11,273 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 10:31:11,389 INFO L208 MainTranslator]: Completed translation [2020-09-21 10:31:11,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:31:11 WrapperNode [2020-09-21 10:31:11,389 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 10:31:11,391 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 10:31:11,391 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 10:31:11,391 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 10:31:11,409 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:31:11" (1/1) ... [2020-09-21 10:31:11,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:31:11" (1/1) ... [2020-09-21 10:31:11,418 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:31:11" (1/1) ... [2020-09-21 10:31:11,419 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:31:11" (1/1) ... [2020-09-21 10:31:11,429 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:31:11" (1/1) ... [2020-09-21 10:31:11,441 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:31:11" (1/1) ... [2020-09-21 10:31:11,444 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:31:11" (1/1) ... [2020-09-21 10:31:11,447 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 10:31:11,448 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 10:31:11,448 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 10:31:11,449 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 10:31:11,450 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:31:11" (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 [2020-09-21 10:31:11,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 10:31:11,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 10:31:11,540 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-09-21 10:31:11,540 INFO L138 BoogieDeclarations]: Found implementation of procedure update_fifo_q [2020-09-21 10:31:11,540 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2020-09-21 10:31:11,540 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2020-09-21 10:31:11,541 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2020-09-21 10:31:11,542 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2020-09-21 10:31:11,542 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2020-09-21 10:31:11,542 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-09-21 10:31:11,542 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-09-21 10:31:11,543 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-09-21 10:31:11,543 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-09-21 10:31:11,543 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-09-21 10:31:11,543 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-09-21 10:31:11,544 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-09-21 10:31:11,544 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-09-21 10:31:11,544 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-09-21 10:31:11,544 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-09-21 10:31:11,544 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-09-21 10:31:11,545 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-09-21 10:31:11,545 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 10:31:11,545 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 10:31:11,545 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 10:31:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-09-21 10:31:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure update_fifo_q [2020-09-21 10:31:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2020-09-21 10:31:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2020-09-21 10:31:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2020-09-21 10:31:11,547 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2020-09-21 10:31:11,547 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2020-09-21 10:31:11,547 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-09-21 10:31:11,547 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-09-21 10:31:11,547 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-09-21 10:31:11,547 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-09-21 10:31:11,548 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-09-21 10:31:11,548 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-09-21 10:31:11,548 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-09-21 10:31:11,548 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-09-21 10:31:11,548 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-09-21 10:31:11,549 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-09-21 10:31:11,549 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-09-21 10:31:11,549 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-09-21 10:31:11,549 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 10:31:11,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 10:31:11,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 10:31:12,055 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; [2020-09-21 10:31:12,056 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !(1 == ~q_free~0); [2020-09-21 10:31:12,078 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 10:31:12,079 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-21 10:31:12,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 10:31:12 BoogieIcfgContainer [2020-09-21 10:31:12,085 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 10:31:12,087 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 10:31:12,087 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 10:31:12,093 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 10:31:12,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 10:31:10" (1/3) ... [2020-09-21 10:31:12,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e59522c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 10:31:12, skipping insertion in model container [2020-09-21 10:31:12,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:31:11" (2/3) ... [2020-09-21 10:31:12,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e59522c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 10:31:12, skipping insertion in model container [2020-09-21 10:31:12,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 10:31:12" (3/3) ... [2020-09-21 10:31:12,103 INFO L109 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil.c [2020-09-21 10:31:12,115 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 10:31:12,125 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 10:31:12,147 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 10:31:12,181 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 10:31:12,181 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 10:31:12,181 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 10:31:12,181 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 10:31:12,182 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 10:31:12,182 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 10:31:12,182 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 10:31:12,182 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 10:31:12,207 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states. [2020-09-21 10:31:12,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-09-21 10:31:12,219 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:31:12,220 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] [2020-09-21 10:31:12,220 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:31:12,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:31:12,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1427944937, now seen corresponding path program 1 times [2020-09-21 10:31:12,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:31:12,236 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1460652101] [2020-09-21 10:31:12,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:31:12,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:12,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:31:12,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:12,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:31:12,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:12,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:31:12,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:12,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 10:31:12,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:12,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-21 10:31:12,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:12,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-21 10:31:12,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:12,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:31:12,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:12,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 10:31:12,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:12,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-21 10:31:12,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:12,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-09-21 10:31:12,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:12,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:31:12,986 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1460652101] [2020-09-21 10:31:12,989 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:31:12,989 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-21 10:31:12,990 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005328944] [2020-09-21 10:31:12,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 10:31:12,999 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:31:13,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 10:31:13,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-09-21 10:31:13,022 INFO L87 Difference]: Start difference. First operand 156 states. Second operand 10 states. [2020-09-21 10:31:17,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:31:17,216 INFO L93 Difference]: Finished difference Result 630 states and 1050 transitions. [2020-09-21 10:31:17,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-21 10:31:17,218 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 78 [2020-09-21 10:31:17,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:31:17,243 INFO L225 Difference]: With dead ends: 630 [2020-09-21 10:31:17,244 INFO L226 Difference]: Without dead ends: 476 [2020-09-21 10:31:17,252 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=186, Invalid=516, Unknown=0, NotChecked=0, Total=702 [2020-09-21 10:31:17,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2020-09-21 10:31:17,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 271. [2020-09-21 10:31:17,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-09-21 10:31:17,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 363 transitions. [2020-09-21 10:31:17,425 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 363 transitions. Word has length 78 [2020-09-21 10:31:17,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:31:17,426 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 363 transitions. [2020-09-21 10:31:17,426 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 10:31:17,426 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 363 transitions. [2020-09-21 10:31:17,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-09-21 10:31:17,448 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:31:17,449 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] [2020-09-21 10:31:17,452 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 10:31:17,452 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:31:17,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:31:17,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1440144215, now seen corresponding path program 1 times [2020-09-21 10:31:17,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:31:17,454 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1674702215] [2020-09-21 10:31:17,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:31:17,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:17,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:31:17,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:17,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:31:17,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:17,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:31:17,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:17,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 10:31:17,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:17,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-21 10:31:17,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:17,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-21 10:31:17,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:17,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:31:17,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:17,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 10:31:17,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:17,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-21 10:31:17,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:17,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-09-21 10:31:17,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:17,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:31:17,791 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1674702215] [2020-09-21 10:31:17,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:31:17,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-21 10:31:17,791 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077727756] [2020-09-21 10:31:17,794 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 10:31:17,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:31:17,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 10:31:17,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-21 10:31:17,795 INFO L87 Difference]: Start difference. First operand 271 states and 363 transitions. Second operand 10 states. [2020-09-21 10:31:21,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:31:21,996 INFO L93 Difference]: Finished difference Result 924 states and 1361 transitions. [2020-09-21 10:31:21,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-21 10:31:21,997 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 78 [2020-09-21 10:31:21,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:31:22,005 INFO L225 Difference]: With dead ends: 924 [2020-09-21 10:31:22,005 INFO L226 Difference]: Without dead ends: 680 [2020-09-21 10:31:22,009 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=222, Invalid=708, Unknown=0, NotChecked=0, Total=930 [2020-09-21 10:31:22,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2020-09-21 10:31:22,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 416. [2020-09-21 10:31:22,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 416 states. [2020-09-21 10:31:22,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 562 transitions. [2020-09-21 10:31:22,121 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 562 transitions. Word has length 78 [2020-09-21 10:31:22,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:31:22,121 INFO L479 AbstractCegarLoop]: Abstraction has 416 states and 562 transitions. [2020-09-21 10:31:22,121 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 10:31:22,121 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 562 transitions. [2020-09-21 10:31:22,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-09-21 10:31:22,126 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:31:22,127 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] [2020-09-21 10:31:22,127 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 10:31:22,127 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:31:22,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:31:22,127 INFO L82 PathProgramCache]: Analyzing trace with hash -53358805, now seen corresponding path program 1 times [2020-09-21 10:31:22,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:31:22,128 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1078664665] [2020-09-21 10:31:22,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:31:22,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:22,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:31:22,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:22,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:31:22,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:22,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:31:22,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:22,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 10:31:22,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:22,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-21 10:31:22,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:22,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-21 10:31:22,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:22,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:31:22,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:22,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 10:31:22,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:22,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-21 10:31:22,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:22,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-09-21 10:31:22,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:22,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:31:22,382 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1078664665] [2020-09-21 10:31:22,382 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:31:22,382 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-21 10:31:22,382 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630786225] [2020-09-21 10:31:22,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 10:31:22,383 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:31:22,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 10:31:22,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-09-21 10:31:22,384 INFO L87 Difference]: Start difference. First operand 416 states and 562 transitions. Second operand 10 states. [2020-09-21 10:31:27,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:31:27,875 INFO L93 Difference]: Finished difference Result 1984 states and 2933 transitions. [2020-09-21 10:31:27,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-09-21 10:31:27,876 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 78 [2020-09-21 10:31:27,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:31:27,888 INFO L225 Difference]: With dead ends: 1984 [2020-09-21 10:31:27,888 INFO L226 Difference]: Without dead ends: 1611 [2020-09-21 10:31:27,891 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=259, Invalid=931, Unknown=0, NotChecked=0, Total=1190 [2020-09-21 10:31:27,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1611 states. [2020-09-21 10:31:28,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1611 to 1175. [2020-09-21 10:31:28,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1175 states. [2020-09-21 10:31:28,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1175 states to 1175 states and 1572 transitions. [2020-09-21 10:31:28,025 INFO L78 Accepts]: Start accepts. Automaton has 1175 states and 1572 transitions. Word has length 78 [2020-09-21 10:31:28,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:31:28,025 INFO L479 AbstractCegarLoop]: Abstraction has 1175 states and 1572 transitions. [2020-09-21 10:31:28,025 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 10:31:28,026 INFO L276 IsEmpty]: Start isEmpty. Operand 1175 states and 1572 transitions. [2020-09-21 10:31:28,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-21 10:31:28,029 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:31:28,030 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] [2020-09-21 10:31:28,030 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 10:31:28,030 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:31:28,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:31:28,031 INFO L82 PathProgramCache]: Analyzing trace with hash -1828215755, now seen corresponding path program 1 times [2020-09-21 10:31:28,031 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:31:28,031 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [358249725] [2020-09-21 10:31:28,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:31:28,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:28,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:31:28,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:28,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:31:28,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:28,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:31:28,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:28,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 10:31:28,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:28,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-21 10:31:28,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:28,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-21 10:31:28,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:28,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:31:28,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:28,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-21 10:31:28,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:28,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 10:31:28,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:28,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-21 10:31:28,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:28,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:31:28,342 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [358249725] [2020-09-21 10:31:28,343 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:31:28,343 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-21 10:31:28,344 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635482054] [2020-09-21 10:31:28,346 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-21 10:31:28,346 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:31:28,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-21 10:31:28,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-09-21 10:31:28,347 INFO L87 Difference]: Start difference. First operand 1175 states and 1572 transitions. Second operand 11 states. [2020-09-21 10:31:30,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:31:30,881 INFO L93 Difference]: Finished difference Result 2733 states and 3855 transitions. [2020-09-21 10:31:30,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-21 10:31:30,881 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 79 [2020-09-21 10:31:30,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:31:30,892 INFO L225 Difference]: With dead ends: 2733 [2020-09-21 10:31:30,893 INFO L226 Difference]: Without dead ends: 1601 [2020-09-21 10:31:30,897 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2020-09-21 10:31:30,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2020-09-21 10:31:31,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 1195. [2020-09-21 10:31:31,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1195 states. [2020-09-21 10:31:31,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1195 states to 1195 states and 1587 transitions. [2020-09-21 10:31:31,014 INFO L78 Accepts]: Start accepts. Automaton has 1195 states and 1587 transitions. Word has length 79 [2020-09-21 10:31:31,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:31:31,015 INFO L479 AbstractCegarLoop]: Abstraction has 1195 states and 1587 transitions. [2020-09-21 10:31:31,015 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-21 10:31:31,015 INFO L276 IsEmpty]: Start isEmpty. Operand 1195 states and 1587 transitions. [2020-09-21 10:31:31,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-21 10:31:31,017 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:31:31,017 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] [2020-09-21 10:31:31,017 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 10:31:31,018 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:31:31,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:31:31,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1580069261, now seen corresponding path program 1 times [2020-09-21 10:31:31,018 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:31:31,019 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1948527314] [2020-09-21 10:31:31,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:31:31,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:31,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:31:31,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:31,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:31:31,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:31,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:31:31,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:31,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 10:31:31,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:31,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-21 10:31:31,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:31,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-21 10:31:31,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:31,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:31:31,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:31,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-21 10:31:31,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:31,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 10:31:31,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:31,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-21 10:31:31,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:31:31,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:31:31,288 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1948527314] [2020-09-21 10:31:31,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:31:31,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-21 10:31:31,288 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827842000] [2020-09-21 10:31:31,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 10:31:31,289 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:31:31,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 10:31:31,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-09-21 10:31:31,290 INFO L87 Difference]: Start difference. First operand 1195 states and 1587 transitions. Second operand 10 states. [2020-09-21 10:31:35,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:31:35,314 INFO L93 Difference]: Finished difference Result 4057 states and 5875 transitions. [2020-09-21 10:31:35,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-21 10:31:35,315 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 79 [2020-09-21 10:31:35,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:31:35,317 INFO L225 Difference]: With dead ends: 4057 [2020-09-21 10:31:35,317 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 10:31:35,333 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=168, Invalid=534, Unknown=0, NotChecked=0, Total=702 [2020-09-21 10:31:35,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 10:31:35,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 10:31:35,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 10:31:35,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 10:31:35,334 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 79 [2020-09-21 10:31:35,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:31:35,335 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 10:31:35,335 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 10:31:35,335 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 10:31:35,335 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 10:31:35,335 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 10:31:35,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 10:31:35,620 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 6 [2020-09-21 10:31:35,770 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 12 [2020-09-21 10:31:36,044 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 6 [2020-09-21 10:31:36,150 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 28 [2020-09-21 10:31:36,255 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 59 [2020-09-21 10:31:36,506 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 95 [2020-09-21 10:31:36,807 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 95 [2020-09-21 10:31:37,030 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 89 [2020-09-21 10:31:37,234 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 95 [2020-09-21 10:31:37,347 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 87 [2020-09-21 10:31:37,466 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2020-09-21 10:31:37,639 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2020-09-21 10:31:37,838 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 95 [2020-09-21 10:31:38,033 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 91 [2020-09-21 10:31:38,319 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 86 [2020-09-21 10:31:38,452 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2020-09-21 10:31:38,609 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 86 [2020-09-21 10:31:38,720 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 87 [2020-09-21 10:31:38,861 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2020-09-21 10:31:39,115 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 91 [2020-09-21 10:31:39,376 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 86 [2020-09-21 10:31:39,578 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 6 [2020-09-21 10:31:40,669 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2020-09-21 10:31:40,776 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 65 [2020-09-21 10:31:40,965 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2020-09-21 10:31:41,150 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 70 [2020-09-21 10:31:41,342 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2020-09-21 10:31:41,469 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2020-09-21 10:31:41,609 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2020-09-21 10:31:41,796 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2020-09-21 10:31:41,984 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2020-09-21 10:31:42,146 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 75 [2020-09-21 10:31:42,318 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 65 [2020-09-21 10:31:42,444 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2020-09-21 10:31:42,591 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 72 [2020-09-21 10:31:42,707 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 64 [2020-09-21 10:31:42,833 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2020-09-21 10:31:42,970 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 72 [2020-09-21 10:31:43,217 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 75 [2020-09-21 10:31:43,497 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2020-09-21 10:31:43,737 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 6 [2020-09-21 10:31:51,678 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2020-09-21 10:31:51,928 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2020-09-21 10:31:52,099 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2020-09-21 10:31:52,661 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2020-09-21 10:31:52,852 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2020-09-21 10:31:53,784 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2020-09-21 10:31:54,135 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2020-09-21 10:31:54,242 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2020-09-21 10:31:54,344 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2020-09-21 10:31:54,548 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2020-09-21 10:31:54,651 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2020-09-21 10:31:54,756 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2020-09-21 10:31:54,938 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2020-09-21 10:31:55,451 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 6 [2020-09-21 10:31:55,778 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 79 [2020-09-21 10:31:55,883 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 65 [2020-09-21 10:31:56,072 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 79 [2020-09-21 10:31:56,253 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 70 [2020-09-21 10:31:56,440 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 79 [2020-09-21 10:31:56,564 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2020-09-21 10:31:56,703 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 72 [2020-09-21 10:31:56,889 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 72 [2020-09-21 10:31:57,075 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 79 [2020-09-21 10:31:57,232 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 74 [2020-09-21 10:31:57,390 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 65 [2020-09-21 10:31:57,511 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2020-09-21 10:31:57,646 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71 [2020-09-21 10:31:57,771 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 64 [2020-09-21 10:31:57,895 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2020-09-21 10:31:58,031 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71 [2020-09-21 10:31:58,278 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 74 [2020-09-21 10:31:58,521 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2020-09-21 10:32:04,943 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 95 [2020-09-21 10:32:05,180 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 95 [2020-09-21 10:32:05,359 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 89 [2020-09-21 10:32:05,527 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 95 [2020-09-21 10:32:05,727 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2020-09-21 10:32:05,875 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2020-09-21 10:32:06,044 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 95 [2020-09-21 10:32:06,200 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 91 [2020-09-21 10:32:06,519 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2020-09-21 10:32:06,648 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 86 [2020-09-21 10:32:06,846 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2020-09-21 10:32:07,065 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 91 [2020-09-21 10:32:12,421 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 95 [2020-09-21 10:32:12,656 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 95 [2020-09-21 10:32:12,837 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 89 [2020-09-21 10:32:13,009 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 95 [2020-09-21 10:32:13,208 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2020-09-21 10:32:13,356 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2020-09-21 10:32:13,539 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 95 [2020-09-21 10:32:13,694 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 91 [2020-09-21 10:32:14,012 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2020-09-21 10:32:14,140 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 86 [2020-09-21 10:32:14,340 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2020-09-21 10:32:14,561 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 91