/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 true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product45.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-22 06:11:19,363 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 06:11:19,365 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 06:11:19,410 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 06:11:19,410 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 06:11:19,411 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 06:11:19,412 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 06:11:19,414 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 06:11:19,416 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 06:11:19,417 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 06:11:19,418 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 06:11:19,419 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 06:11:19,419 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 06:11:19,420 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 06:11:19,421 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 06:11:19,422 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 06:11:19,423 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 06:11:19,424 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 06:11:19,426 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 06:11:19,427 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 06:11:19,429 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 06:11:19,430 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 06:11:19,431 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 06:11:19,432 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 06:11:19,435 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 06:11:19,435 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 06:11:19,435 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 06:11:19,436 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 06:11:19,437 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 06:11:19,438 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 06:11:19,438 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 06:11:19,439 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 06:11:19,439 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 06:11:19,440 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 06:11:19,441 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 06:11:19,441 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 06:11:19,442 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 06:11:19,442 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 06:11:19,442 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 06:11:19,443 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 06:11:19,444 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 06:11:19,445 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 [2020-08-22 06:11:19,467 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 06:11:19,467 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 06:11:19,468 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 06:11:19,468 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 06:11:19,469 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 06:11:19,469 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 06:11:19,472 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 06:11:19,472 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 06:11:19,472 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 06:11:19,472 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 06:11:19,473 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 06:11:19,473 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 06:11:19,473 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 06:11:19,473 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 06:11:19,473 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 06:11:19,473 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 06:11:19,474 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 06:11:19,474 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 06:11:19,474 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 06:11:19,474 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 06:11:19,474 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 06:11:19,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 06:11:19,475 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 06:11:19,475 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 06:11:19,475 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 06:11:19,476 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 06:11:19,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 06:11:19,476 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 06:11:19,476 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 06:11:19,476 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 -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-08-22 06:11:19,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 06:11:19,759 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 06:11:19,763 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 06:11:19,764 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 06:11:19,765 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 06:11:19,765 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product45.cil.c [2020-08-22 06:11:19,829 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d079ea42c/6351cddd243a4391a56b8073d7882112/FLAGe7436e817 [2020-08-22 06:11:20,327 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 06:11:20,328 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product45.cil.c [2020-08-22 06:11:20,341 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d079ea42c/6351cddd243a4391a56b8073d7882112/FLAGe7436e817 [2020-08-22 06:11:20,700 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d079ea42c/6351cddd243a4391a56b8073d7882112 [2020-08-22 06:11:20,710 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 06:11:20,712 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 06:11:20,713 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 06:11:20,713 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 06:11:20,717 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 06:11:20,718 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:11:20" (1/1) ... [2020-08-22 06:11:20,720 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32c8b7f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:11:20, skipping insertion in model container [2020-08-22 06:11:20,721 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:11:20" (1/1) ... [2020-08-22 06:11:20,728 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 06:11:20,790 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 06:11:21,219 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 06:11:21,243 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 06:11:21,323 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 06:11:21,362 INFO L208 MainTranslator]: Completed translation [2020-08-22 06:11:21,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:11:21 WrapperNode [2020-08-22 06:11:21,363 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 06:11:21,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 06:11:21,364 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 06:11:21,364 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 06:11:21,375 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:11:21" (1/1) ... [2020-08-22 06:11:21,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:11:21" (1/1) ... [2020-08-22 06:11:21,394 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:11:21" (1/1) ... [2020-08-22 06:11:21,394 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:11:21" (1/1) ... [2020-08-22 06:11:21,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:11:21" (1/1) ... [2020-08-22 06:11:21,440 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:11:21" (1/1) ... [2020-08-22 06:11:21,445 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:11:21" (1/1) ... [2020-08-22 06:11:21,456 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 06:11:21,457 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 06:11:21,463 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 06:11:21,463 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 06:11:21,465 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:11:21" (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 [2020-08-22 06:11:21,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 06:11:21,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 06:11:21,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 06:11:21,556 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 06:11:21,556 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 06:11:21,556 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 06:11:21,556 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 06:11:21,556 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 06:11:21,557 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 06:11:21,557 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-22 06:11:21,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 06:11:21,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 06:11:21,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 06:11:21,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 06:11:21,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 06:11:21,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 06:11:21,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 06:11:21,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-08-22 06:11:21,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-08-22 06:11:21,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-08-22 06:11:21,560 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 06:11:21,560 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-22 06:11:21,560 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-08-22 06:11:21,560 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 06:11:21,560 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-08-22 06:11:21,561 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 06:11:21,562 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 06:11:21,562 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 06:11:21,562 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 06:11:21,562 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 06:11:21,562 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-22 06:11:21,563 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 06:11:21,563 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 06:11:21,563 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 06:11:21,563 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 06:11:21,564 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 06:11:21,564 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 06:11:21,564 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 06:11:21,564 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 06:11:21,564 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 06:11:21,564 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 06:11:21,564 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 06:11:21,565 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 06:11:21,565 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 06:11:21,566 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 06:11:21,566 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 06:11:21,566 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 06:11:21,567 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 06:11:21,567 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 06:11:21,567 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 06:11:21,567 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-22 06:11:21,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 06:11:21,567 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 06:11:21,568 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 06:11:21,568 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 06:11:21,568 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 06:11:21,568 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 06:11:21,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 06:11:21,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 06:11:21,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 06:11:21,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 06:11:21,569 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 06:11:21,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 06:11:21,569 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 06:11:21,569 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 06:11:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 06:11:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 06:11:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 06:11:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 06:11:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 06:11:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-08-22 06:11:21,571 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-08-22 06:11:21,572 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-08-22 06:11:21,572 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 06:11:21,573 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 06:11:21,573 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 06:11:21,573 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 06:11:21,573 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 06:11:21,573 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-22 06:11:21,573 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-22 06:11:21,574 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-08-22 06:11:21,574 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 06:11:21,574 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-08-22 06:11:21,574 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 06:11:21,574 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 06:11:21,574 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 06:11:21,574 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 06:11:21,574 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 06:11:21,574 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 06:11:21,574 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 06:11:21,575 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 06:11:21,575 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 06:11:21,575 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 06:11:21,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 06:11:21,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 06:11:21,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 06:11:22,641 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 06:11:22,641 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 06:11:22,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:11:22 BoogieIcfgContainer [2020-08-22 06:11:22,652 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 06:11:22,655 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 06:11:22,655 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 06:11:22,658 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 06:11:22,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 06:11:20" (1/3) ... [2020-08-22 06:11:22,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f060168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:11:22, skipping insertion in model container [2020-08-22 06:11:22,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:11:21" (2/3) ... [2020-08-22 06:11:22,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f060168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:11:22, skipping insertion in model container [2020-08-22 06:11:22,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:11:22" (3/3) ... [2020-08-22 06:11:22,663 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product45.cil.c [2020-08-22 06:11:22,674 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 06:11:22,684 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 06:11:22,697 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 06:11:22,720 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 06:11:22,720 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 06:11:22,720 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 06:11:22,721 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 06:11:22,721 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 06:11:22,722 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 06:11:22,722 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 06:11:22,723 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 06:11:22,752 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states. [2020-08-22 06:11:22,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-08-22 06:11:22,763 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:11:22,764 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 06:11:22,764 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:11:22,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:11:22,771 INFO L82 PathProgramCache]: Analyzing trace with hash -587014934, now seen corresponding path program 1 times [2020-08-22 06:11:22,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:11:22,781 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1751184233] [2020-08-22 06:11:22,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:11:23,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:23,434 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:11:23,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:23,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:23,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:11:23,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:23,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:11:23,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:23,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:23,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:23,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:11:23,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:23,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:11:23,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:23,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 06:11:23,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:23,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:23,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:23,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-22 06:11:23,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:23,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 06:11:23,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:23,594 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 06:11:23,595 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1751184233] [2020-08-22 06:11:23,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:11:23,598 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 06:11:23,599 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271224556] [2020-08-22 06:11:23,604 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 06:11:23,605 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:11:23,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 06:11:23,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-22 06:11:23,623 INFO L87 Difference]: Start difference. First operand 186 states. Second operand 4 states. [2020-08-22 06:11:24,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:11:24,746 INFO L93 Difference]: Finished difference Result 315 states and 403 transitions. [2020-08-22 06:11:24,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 06:11:24,748 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-08-22 06:11:24,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:11:24,764 INFO L225 Difference]: With dead ends: 315 [2020-08-22 06:11:24,764 INFO L226 Difference]: Without dead ends: 173 [2020-08-22 06:11:24,769 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-22 06:11:24,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2020-08-22 06:11:24,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 143. [2020-08-22 06:11:24,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-08-22 06:11:24,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 168 transitions. [2020-08-22 06:11:24,863 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 168 transitions. Word has length 59 [2020-08-22 06:11:24,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:11:24,863 INFO L479 AbstractCegarLoop]: Abstraction has 143 states and 168 transitions. [2020-08-22 06:11:24,864 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 06:11:24,864 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 168 transitions. [2020-08-22 06:11:24,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-08-22 06:11:24,868 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:11:24,868 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 06:11:24,868 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 06:11:24,868 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:11:24,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:11:24,869 INFO L82 PathProgramCache]: Analyzing trace with hash 272490530, now seen corresponding path program 1 times [2020-08-22 06:11:24,869 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:11:24,870 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1519504598] [2020-08-22 06:11:24,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:11:24,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:25,252 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:11:25,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:25,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:25,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:11:25,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:25,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:11:25,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:25,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:25,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:25,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:11:25,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:25,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:11:25,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:25,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 06:11:25,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:25,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:25,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:25,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-22 06:11:25,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:25,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-22 06:11:25,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:25,426 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 06:11:25,426 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1519504598] [2020-08-22 06:11:25,427 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:11:25,427 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 06:11:25,428 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259137531] [2020-08-22 06:11:25,431 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 06:11:25,431 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:11:25,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 06:11:25,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-22 06:11:25,433 INFO L87 Difference]: Start difference. First operand 143 states and 168 transitions. Second operand 9 states. [2020-08-22 06:11:25,846 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:11:26,189 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:11:26,426 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:11:26,669 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:11:27,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:11:27,999 INFO L93 Difference]: Finished difference Result 288 states and 358 transitions. [2020-08-22 06:11:28,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 06:11:28,002 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 64 [2020-08-22 06:11:28,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:11:28,008 INFO L225 Difference]: With dead ends: 288 [2020-08-22 06:11:28,009 INFO L226 Difference]: Without dead ends: 173 [2020-08-22 06:11:28,013 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-08-22 06:11:28,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2020-08-22 06:11:28,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 143. [2020-08-22 06:11:28,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-08-22 06:11:28,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 167 transitions. [2020-08-22 06:11:28,061 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 167 transitions. Word has length 64 [2020-08-22 06:11:28,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:11:28,062 INFO L479 AbstractCegarLoop]: Abstraction has 143 states and 167 transitions. [2020-08-22 06:11:28,062 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 06:11:28,062 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 167 transitions. [2020-08-22 06:11:28,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-08-22 06:11:28,065 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:11:28,065 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 06:11:28,065 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 06:11:28,065 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:11:28,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:11:28,066 INFO L82 PathProgramCache]: Analyzing trace with hash -1080536843, now seen corresponding path program 1 times [2020-08-22 06:11:28,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:11:28,066 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1545909688] [2020-08-22 06:11:28,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:11:28,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:28,351 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:11:28,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:28,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:28,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:11:28,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:28,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:11:28,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:28,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:28,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:28,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:11:28,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:28,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:11:28,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:28,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 06:11:28,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:28,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:28,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:28,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-22 06:11:28,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:28,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:11:28,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:28,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:11:28,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:28,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-22 06:11:28,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:28,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-22 06:11:28,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:28,487 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 06:11:28,488 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1545909688] [2020-08-22 06:11:28,488 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:11:28,488 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 06:11:28,488 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374424095] [2020-08-22 06:11:28,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 06:11:28,489 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:11:28,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 06:11:28,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-22 06:11:28,490 INFO L87 Difference]: Start difference. First operand 143 states and 167 transitions. Second operand 7 states. [2020-08-22 06:11:28,805 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:11:30,323 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:11:30,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:11:30,863 INFO L93 Difference]: Finished difference Result 433 states and 561 transitions. [2020-08-22 06:11:30,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-22 06:11:30,864 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 77 [2020-08-22 06:11:30,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:11:30,871 INFO L225 Difference]: With dead ends: 433 [2020-08-22 06:11:30,871 INFO L226 Difference]: Without dead ends: 318 [2020-08-22 06:11:30,873 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-08-22 06:11:30,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-08-22 06:11:30,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 257. [2020-08-22 06:11:30,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2020-08-22 06:11:30,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 306 transitions. [2020-08-22 06:11:30,928 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 306 transitions. Word has length 77 [2020-08-22 06:11:30,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:11:30,929 INFO L479 AbstractCegarLoop]: Abstraction has 257 states and 306 transitions. [2020-08-22 06:11:30,929 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 06:11:30,929 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 306 transitions. [2020-08-22 06:11:30,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-08-22 06:11:30,932 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:11:30,932 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 06:11:30,932 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 06:11:30,932 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:11:30,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:11:30,933 INFO L82 PathProgramCache]: Analyzing trace with hash -1912690952, now seen corresponding path program 1 times [2020-08-22 06:11:30,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:11:30,933 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [316381325] [2020-08-22 06:11:30,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:11:30,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:31,259 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:11:31,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:31,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:31,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:11:31,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:31,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:11:31,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:31,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:31,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:31,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:11:31,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:31,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:11:31,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:31,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 06:11:31,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:31,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:31,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:31,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-22 06:11:31,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:31,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:11:31,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:31,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:11:31,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:31,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:31,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:31,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 06:11:31,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:31,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-08-22 06:11:31,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:31,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-22 06:11:31,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:31,382 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-22 06:11:31,382 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [316381325] [2020-08-22 06:11:31,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:11:31,383 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 06:11:31,383 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898349352] [2020-08-22 06:11:31,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 06:11:31,384 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:11:31,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 06:11:31,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-22 06:11:31,385 INFO L87 Difference]: Start difference. First operand 257 states and 306 transitions. Second operand 9 states. [2020-08-22 06:11:31,723 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:11:32,346 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:11:33,342 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:11:33,627 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:11:34,032 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:11:34,269 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:11:34,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:11:34,820 INFO L93 Difference]: Finished difference Result 536 states and 678 transitions. [2020-08-22 06:11:34,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-22 06:11:34,821 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 91 [2020-08-22 06:11:34,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:11:34,824 INFO L225 Difference]: With dead ends: 536 [2020-08-22 06:11:34,825 INFO L226 Difference]: Without dead ends: 307 [2020-08-22 06:11:34,826 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-08-22 06:11:34,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-08-22 06:11:34,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 256. [2020-08-22 06:11:34,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2020-08-22 06:11:34,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 303 transitions. [2020-08-22 06:11:34,878 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 303 transitions. Word has length 91 [2020-08-22 06:11:34,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:11:34,879 INFO L479 AbstractCegarLoop]: Abstraction has 256 states and 303 transitions. [2020-08-22 06:11:34,879 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 06:11:34,879 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 303 transitions. [2020-08-22 06:11:34,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-08-22 06:11:34,881 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:11:34,882 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 06:11:34,882 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 06:11:34,882 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:11:34,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:11:34,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1692072858, now seen corresponding path program 1 times [2020-08-22 06:11:34,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:11:34,885 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1618524106] [2020-08-22 06:11:34,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:11:34,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:35,133 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:11:35,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:35,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:35,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:11:35,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:35,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:11:35,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:35,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:35,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:35,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:11:35,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:35,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:11:35,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:35,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 06:11:35,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:35,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:35,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:35,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-22 06:11:35,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:35,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:11:35,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:35,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:11:35,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:35,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:35,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:35,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 06:11:35,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:35,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:35,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:35,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:35,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:35,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:35,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:35,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-08-22 06:11:35,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:35,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-22 06:11:35,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:35,323 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 06:11:35,323 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1618524106] [2020-08-22 06:11:35,324 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:11:35,324 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 06:11:35,324 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474897664] [2020-08-22 06:11:35,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 06:11:35,325 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:11:35,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 06:11:35,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-08-22 06:11:35,326 INFO L87 Difference]: Start difference. First operand 256 states and 303 transitions. Second operand 10 states. [2020-08-22 06:11:35,893 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:11:36,520 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:11:36,752 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 06:11:37,007 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:11:37,251 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:11:38,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:11:38,067 INFO L93 Difference]: Finished difference Result 498 states and 618 transitions. [2020-08-22 06:11:38,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-22 06:11:38,072 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 103 [2020-08-22 06:11:38,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:11:38,075 INFO L225 Difference]: With dead ends: 498 [2020-08-22 06:11:38,077 INFO L226 Difference]: Without dead ends: 270 [2020-08-22 06:11:38,078 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2020-08-22 06:11:38,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-08-22 06:11:38,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 231. [2020-08-22 06:11:38,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-08-22 06:11:38,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 261 transitions. [2020-08-22 06:11:38,136 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 261 transitions. Word has length 103 [2020-08-22 06:11:38,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:11:38,137 INFO L479 AbstractCegarLoop]: Abstraction has 231 states and 261 transitions. [2020-08-22 06:11:38,137 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 06:11:38,137 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 261 transitions. [2020-08-22 06:11:38,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-08-22 06:11:38,138 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:11:38,139 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 06:11:38,139 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 06:11:38,139 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:11:38,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:11:38,140 INFO L82 PathProgramCache]: Analyzing trace with hash 304023506, now seen corresponding path program 1 times [2020-08-22 06:11:38,140 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:11:38,140 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [786174368] [2020-08-22 06:11:38,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:11:38,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:38,423 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:11:38,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:38,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:38,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:11:38,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:38,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:11:38,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:38,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:38,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:38,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:11:38,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:38,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:11:38,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:38,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 06:11:38,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:38,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:38,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:38,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-22 06:11:38,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:38,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:11:38,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:38,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:11:38,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:38,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:38,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:38,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 06:11:38,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:38,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:38,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:38,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:38,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:38,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:38,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:38,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-22 06:11:38,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:38,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-22 06:11:38,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:38,630 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 06:11:38,630 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [786174368] [2020-08-22 06:11:38,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:11:38,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-22 06:11:38,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114131147] [2020-08-22 06:11:38,633 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 06:11:38,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:11:38,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 06:11:38,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-08-22 06:11:38,635 INFO L87 Difference]: Start difference. First operand 231 states and 261 transitions. Second operand 11 states. [2020-08-22 06:11:39,145 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:11:39,383 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:11:39,603 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:11:40,245 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:11:40,502 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:11:40,732 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:11:41,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:11:41,593 INFO L93 Difference]: Finished difference Result 478 states and 578 transitions. [2020-08-22 06:11:41,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 06:11:41,595 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 107 [2020-08-22 06:11:41,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:11:41,597 INFO L225 Difference]: With dead ends: 478 [2020-08-22 06:11:41,597 INFO L226 Difference]: Without dead ends: 275 [2020-08-22 06:11:41,599 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-08-22 06:11:41,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2020-08-22 06:11:41,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 235. [2020-08-22 06:11:41,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-08-22 06:11:41,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 265 transitions. [2020-08-22 06:11:41,640 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 265 transitions. Word has length 107 [2020-08-22 06:11:41,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:11:41,641 INFO L479 AbstractCegarLoop]: Abstraction has 235 states and 265 transitions. [2020-08-22 06:11:41,641 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 06:11:41,641 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 265 transitions. [2020-08-22 06:11:41,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-08-22 06:11:41,642 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:11:41,643 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 06:11:41,643 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 06:11:41,643 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:11:41,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:11:41,643 INFO L82 PathProgramCache]: Analyzing trace with hash 63483377, now seen corresponding path program 1 times [2020-08-22 06:11:41,644 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:11:41,644 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [90126972] [2020-08-22 06:11:41,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:11:41,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:41,934 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:11:41,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:41,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:41,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:11:41,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:41,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:11:41,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:41,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:41,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:41,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:11:41,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:41,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:11:41,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:41,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 06:11:41,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:41,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:41,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:41,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-22 06:11:41,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:42,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:11:42,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:42,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:11:42,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:42,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:42,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:42,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 06:11:42,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:42,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:42,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:42,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:42,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:42,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:42,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:42,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-22 06:11:42,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:42,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-22 06:11:42,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:42,099 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 06:11:42,099 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [90126972] [2020-08-22 06:11:42,099 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:11:42,099 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 06:11:42,100 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126610791] [2020-08-22 06:11:42,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 06:11:42,100 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:11:42,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 06:11:42,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-22 06:11:42,101 INFO L87 Difference]: Start difference. First operand 235 states and 265 transitions. Second operand 7 states. [2020-08-22 06:11:42,595 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:11:43,081 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:11:44,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:11:44,777 INFO L93 Difference]: Finished difference Result 647 states and 802 transitions. [2020-08-22 06:11:44,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-22 06:11:44,778 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 107 [2020-08-22 06:11:44,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:11:44,781 INFO L225 Difference]: With dead ends: 647 [2020-08-22 06:11:44,781 INFO L226 Difference]: Without dead ends: 440 [2020-08-22 06:11:44,783 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 43 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-08-22 06:11:44,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2020-08-22 06:11:44,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 402. [2020-08-22 06:11:44,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-08-22 06:11:44,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 469 transitions. [2020-08-22 06:11:44,849 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 469 transitions. Word has length 107 [2020-08-22 06:11:44,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:11:44,849 INFO L479 AbstractCegarLoop]: Abstraction has 402 states and 469 transitions. [2020-08-22 06:11:44,849 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 06:11:44,849 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 469 transitions. [2020-08-22 06:11:44,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-08-22 06:11:44,851 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:11:44,851 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 06:11:44,851 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-22 06:11:44,851 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:11:44,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:11:44,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1148604343, now seen corresponding path program 1 times [2020-08-22 06:11:44,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:11:44,852 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [91112545] [2020-08-22 06:11:44,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:11:44,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:45,158 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:11:45,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:45,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:45,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:11:45,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:45,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:11:45,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:45,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:45,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:45,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:11:45,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:45,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:11:45,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:45,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 06:11:45,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:45,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-22 06:11:45,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:45,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:45,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:45,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-22 06:11:45,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:45,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:11:45,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:45,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:11:45,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:45,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:45,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:45,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 06:11:45,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:45,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:45,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:45,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:45,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:45,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:45,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:45,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-08-22 06:11:45,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:45,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-22 06:11:45,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:45,361 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 06:11:45,364 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [91112545] [2020-08-22 06:11:45,365 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:11:45,365 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-22 06:11:45,365 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760717423] [2020-08-22 06:11:45,366 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-22 06:11:45,367 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:11:45,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-22 06:11:45,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-08-22 06:11:45,367 INFO L87 Difference]: Start difference. First operand 402 states and 469 transitions. Second operand 12 states. [2020-08-22 06:11:45,793 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:11:46,493 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:11:47,476 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:11:47,800 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:11:48,083 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 06:11:48,371 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:11:48,652 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:11:49,908 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:11:50,201 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:11:50,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:11:50,847 INFO L93 Difference]: Finished difference Result 1110 states and 1376 transitions. [2020-08-22 06:11:50,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-08-22 06:11:50,854 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 111 [2020-08-22 06:11:50,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:11:50,860 INFO L225 Difference]: With dead ends: 1110 [2020-08-22 06:11:50,860 INFO L226 Difference]: Without dead ends: 806 [2020-08-22 06:11:50,863 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2020-08-22 06:11:50,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2020-08-22 06:11:51,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 696. [2020-08-22 06:11:51,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 696 states. [2020-08-22 06:11:51,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 804 transitions. [2020-08-22 06:11:51,031 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 804 transitions. Word has length 111 [2020-08-22 06:11:51,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:11:51,032 INFO L479 AbstractCegarLoop]: Abstraction has 696 states and 804 transitions. [2020-08-22 06:11:51,033 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-22 06:11:51,033 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 804 transitions. [2020-08-22 06:11:51,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-08-22 06:11:51,036 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:11:51,037 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 06:11:51,037 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-22 06:11:51,037 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:11:51,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:11:51,038 INFO L82 PathProgramCache]: Analyzing trace with hash 490171745, now seen corresponding path program 1 times [2020-08-22 06:11:51,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:11:51,038 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [5700439] [2020-08-22 06:11:51,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:11:51,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,330 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:11:51,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:51,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:11:51,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:11:51,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:51,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:11:51,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:11:51,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 06:11:51,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 06:11:51,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:51,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:51,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 06:11:51,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:11:51,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:11:51,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:51,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 06:11:51,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:51,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:51,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:11:51,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-22 06:11:51,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:51,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-08-22 06:11:51,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:11:51,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-08-22 06:11:51,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-08-22 06:11:51,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:11:51,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:11:51,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 06:11:51,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:11:51,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-08-22 06:11:51,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-08-22 06:11:51,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:11:51,757 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 21 proven. 8 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-08-22 06:11:51,758 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [5700439] [2020-08-22 06:11:51,758 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 06:11:51,758 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-22 06:11:51,759 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570028615] [2020-08-22 06:11:51,760 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-22 06:11:51,761 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:11:51,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-22 06:11:51,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-08-22 06:11:51,762 INFO L87 Difference]: Start difference. First operand 696 states and 804 transitions. Second operand 16 states. [2020-08-22 06:11:52,562 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 06:11:53,002 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-22 06:11:53,247 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-22 06:11:53,494 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-22 06:11:54,104 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-08-22 06:11:54,389 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 06:11:54,797 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-08-22 06:11:55,579 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-08-22 06:11:56,245 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:11:56,683 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-08-22 06:11:57,350 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-08-22 06:11:57,816 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-08-22 06:11:58,111 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 06:11:58,668 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:11:59,075 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-08-22 06:11:59,679 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 194 [2020-08-22 06:12:00,319 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 06:12:00,800 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 195 [2020-08-22 06:12:01,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:12:01,431 INFO L93 Difference]: Finished difference Result 1505 states and 1795 transitions. [2020-08-22 06:12:01,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-08-22 06:12:01,432 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 170 [2020-08-22 06:12:01,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:12:01,437 INFO L225 Difference]: With dead ends: 1505 [2020-08-22 06:12:01,438 INFO L226 Difference]: Without dead ends: 903 [2020-08-22 06:12:01,441 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 767 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=618, Invalid=2462, Unknown=0, NotChecked=0, Total=3080 [2020-08-22 06:12:01,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2020-08-22 06:12:01,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 824. [2020-08-22 06:12:01,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 824 states. [2020-08-22 06:12:01,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 962 transitions. [2020-08-22 06:12:01,602 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 962 transitions. Word has length 170 [2020-08-22 06:12:01,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:12:01,603 INFO L479 AbstractCegarLoop]: Abstraction has 824 states and 962 transitions. [2020-08-22 06:12:01,603 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-22 06:12:01,603 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 962 transitions. [2020-08-22 06:12:01,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2020-08-22 06:12:01,610 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:12:01,611 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 06:12:01,611 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-22 06:12:01,612 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:12:01,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:12:01,612 INFO L82 PathProgramCache]: Analyzing trace with hash -1064646135, now seen corresponding path program 1 times [2020-08-22 06:12:01,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:12:01,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [65826254] [2020-08-22 06:12:01,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:12:01,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:01,889 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:12:01,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:01,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:01,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:12:01,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:01,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:12:01,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:01,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:12:01,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:01,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:12:01,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:01,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:12:01,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:01,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 06:12:01,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:01,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 06:12:01,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:01,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:01,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:01,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:01,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:01,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 06:12:01,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:01,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:12:01,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:01,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:12:01,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:01,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:01,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:01,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 06:12:01,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:01,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:01,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:01,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:01,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:02,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:12:02,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:02,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-22 06:12:02,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:02,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:02,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:02,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-08-22 06:12:02,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:02,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:02,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:02,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:02,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:02,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:12:02,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:02,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 06:12:02,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:02,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:12:02,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:02,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:02,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:02,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 06:12:02,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:02,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:12:02,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:02,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 06:12:02,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:02,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:02,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:02,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-22 06:12:02,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:02,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:02,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:02,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:02,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:02,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:12:02,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:02,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 06:12:02,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:02,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:12:02,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:02,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:02,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:02,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 06:12:02,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:02,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-22 06:12:02,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:02,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:02,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:02,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-08-22 06:12:02,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:02,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:02,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:02,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2020-08-22 06:12:02,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:02,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:12:02,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:02,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:12:02,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:02,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:02,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:02,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 06:12:02,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:02,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:02,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:02,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:02,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:02,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:12:02,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:02,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2020-08-22 06:12:02,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:02,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2020-08-22 06:12:02,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:02,409 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 78 proven. 29 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2020-08-22 06:12:02,410 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [65826254] [2020-08-22 06:12:02,410 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 06:12:02,410 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-08-22 06:12:02,410 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512169973] [2020-08-22 06:12:02,411 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-08-22 06:12:02,411 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:12:02,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-08-22 06:12:02,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2020-08-22 06:12:02,412 INFO L87 Difference]: Start difference. First operand 824 states and 962 transitions. Second operand 15 states. [2020-08-22 06:12:03,772 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:12:04,095 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 06:12:04,352 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 06:12:04,630 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:12:06,010 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 06:12:07,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:12:07,090 INFO L93 Difference]: Finished difference Result 2172 states and 2641 transitions. [2020-08-22 06:12:07,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-08-22 06:12:07,096 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 299 [2020-08-22 06:12:07,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:12:07,104 INFO L225 Difference]: With dead ends: 2172 [2020-08-22 06:12:07,104 INFO L226 Difference]: Without dead ends: 1289 [2020-08-22 06:12:07,107 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 107 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=230, Invalid=762, Unknown=0, NotChecked=0, Total=992 [2020-08-22 06:12:07,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2020-08-22 06:12:07,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 1086. [2020-08-22 06:12:07,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1086 states. [2020-08-22 06:12:07,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 1299 transitions. [2020-08-22 06:12:07,326 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 1299 transitions. Word has length 299 [2020-08-22 06:12:07,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:12:07,327 INFO L479 AbstractCegarLoop]: Abstraction has 1086 states and 1299 transitions. [2020-08-22 06:12:07,327 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-08-22 06:12:07,327 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 1299 transitions. [2020-08-22 06:12:07,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2020-08-22 06:12:07,337 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:12:07,337 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 06:12:07,338 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-22 06:12:07,338 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:12:07,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:12:07,338 INFO L82 PathProgramCache]: Analyzing trace with hash -140233560, now seen corresponding path program 1 times [2020-08-22 06:12:07,338 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:12:07,343 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1663971306] [2020-08-22 06:12:07,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:12:07,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:07,687 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:12:07,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:07,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:07,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:12:07,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:07,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:12:07,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:07,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:12:07,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:07,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:12:07,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:07,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:12:07,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:07,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 06:12:07,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:07,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 06:12:07,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:07,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:07,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:07,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:07,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:07,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 06:12:07,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:07,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:12:07,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:07,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:12:07,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:07,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:07,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:07,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 06:12:07,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:07,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:07,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:07,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:07,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:07,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:12:07,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:07,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-22 06:12:07,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:07,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:07,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:07,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-08-22 06:12:07,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:07,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:07,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:07,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:07,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:07,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:12:07,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:07,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 06:12:07,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:07,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:12:07,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:07,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:07,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:07,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 06:12:07,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:07,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:12:07,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:07,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 06:12:07,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:07,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:07,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:07,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-22 06:12:07,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:07,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-08-22 06:12:07,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:07,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:07,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:07,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:07,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:07,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:12:07,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:07,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 06:12:07,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:07,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:12:08,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:08,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:08,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:08,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 06:12:08,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:08,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-22 06:12:08,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:08,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:08,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:08,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-08-22 06:12:08,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:08,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2020-08-22 06:12:08,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:08,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:08,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:08,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2020-08-22 06:12:08,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:08,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:12:08,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:08,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:12:08,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:08,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:08,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:08,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 06:12:08,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:08,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:08,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:08,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:08,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:08,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:12:08,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:08,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-08-22 06:12:08,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:08,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2020-08-22 06:12:08,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:08,249 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 86 proven. 38 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2020-08-22 06:12:08,250 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1663971306] [2020-08-22 06:12:08,250 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 06:12:08,250 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-22 06:12:08,250 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106229163] [2020-08-22 06:12:08,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-22 06:12:08,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:12:08,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-22 06:12:08,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2020-08-22 06:12:08,253 INFO L87 Difference]: Start difference. First operand 1086 states and 1299 transitions. Second operand 16 states. [2020-08-22 06:12:08,790 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:12:09,147 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 06:12:09,427 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 06:12:09,691 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 06:12:10,329 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:12:11,239 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:12:11,510 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:12:11,991 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:12:12,579 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:12:13,395 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:12:13,656 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:12:14,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:12:14,235 INFO L93 Difference]: Finished difference Result 2062 states and 2501 transitions. [2020-08-22 06:12:14,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-08-22 06:12:14,236 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 309 [2020-08-22 06:12:14,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:12:14,247 INFO L225 Difference]: With dead ends: 2062 [2020-08-22 06:12:14,247 INFO L226 Difference]: Without dead ends: 1089 [2020-08-22 06:12:14,251 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=297, Invalid=1185, Unknown=0, NotChecked=0, Total=1482 [2020-08-22 06:12:14,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2020-08-22 06:12:14,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 1046. [2020-08-22 06:12:14,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1046 states. [2020-08-22 06:12:14,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1046 states to 1046 states and 1233 transitions. [2020-08-22 06:12:14,442 INFO L78 Accepts]: Start accepts. Automaton has 1046 states and 1233 transitions. Word has length 309 [2020-08-22 06:12:14,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:12:14,442 INFO L479 AbstractCegarLoop]: Abstraction has 1046 states and 1233 transitions. [2020-08-22 06:12:14,442 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-22 06:12:14,442 INFO L276 IsEmpty]: Start isEmpty. Operand 1046 states and 1233 transitions. [2020-08-22 06:12:14,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2020-08-22 06:12:14,450 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:12:14,451 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 06:12:14,451 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-22 06:12:14,451 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:12:14,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:12:14,452 INFO L82 PathProgramCache]: Analyzing trace with hash 927464560, now seen corresponding path program 1 times [2020-08-22 06:12:14,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:12:14,452 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1293612561] [2020-08-22 06:12:14,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:12:14,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,803 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:12:14,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:14,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:12:14,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:12:14,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:12:14,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:12:14,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 06:12:14,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 06:12:14,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 06:12:14,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:14,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:14,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 06:12:14,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:12:14,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:12:14,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:14,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 06:12:14,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:14,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:14,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:12:14,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-22 06:12:14,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:14,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-08-22 06:12:14,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:14,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:14,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:12:14,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:14,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 06:12:14,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:15,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:12:15,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:15,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:15,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:15,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 06:12:15,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:15,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:12:15,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:15,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 06:12:15,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:15,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:15,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:15,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-22 06:12:15,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:15,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-08-22 06:12:15,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:15,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:15,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:15,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:15,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:15,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:12:15,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:15,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 06:12:15,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:15,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:12:15,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:15,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:15,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:15,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 06:12:15,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:15,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-22 06:12:15,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:15,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:15,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:15,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2020-08-22 06:12:15,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:15,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:12:15,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:15,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2020-08-22 06:12:15,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:15,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:12:15,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:15,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:12:15,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:15,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:15,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:15,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 06:12:15,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:15,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:15,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:15,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:12:15,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:15,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:12:15,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:15,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2020-08-22 06:12:15,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:15,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2020-08-22 06:12:15,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:12:15,402 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 78 proven. 21 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2020-08-22 06:12:15,403 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1293612561] [2020-08-22 06:12:15,403 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 06:12:15,403 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-22 06:12:15,404 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692995708] [2020-08-22 06:12:15,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-22 06:12:15,406 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:12:15,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-22 06:12:15,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2020-08-22 06:12:15,407 INFO L87 Difference]: Start difference. First operand 1046 states and 1233 transitions. Second operand 16 states. [2020-08-22 06:12:15,925 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:12:16,655 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:12:17,634 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:12:17,938 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:12:18,197 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 06:12:18,464 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 06:12:18,779 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 06:12:19,071 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 192