/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=SMALLEST --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_spec1_product46.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 15:29:57,096 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 15:29:57,099 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 15:29:57,140 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 15:29:57,140 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 15:29:57,148 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 15:29:57,151 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 15:29:57,154 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 15:29:57,156 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 15:29:57,159 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 15:29:57,160 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 15:29:57,161 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 15:29:57,161 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 15:29:57,164 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 15:29:57,167 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 15:29:57,168 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 15:29:57,169 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 15:29:57,170 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 15:29:57,172 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 15:29:57,180 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 15:29:57,183 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 15:29:57,184 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 15:29:57,185 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 15:29:57,185 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 15:29:57,197 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 15:29:57,197 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 15:29:57,197 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 15:29:57,198 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 15:29:57,198 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 15:29:57,202 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 15:29:57,202 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 15:29:57,203 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 15:29:57,204 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 15:29:57,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 15:29:57,207 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 15:29:57,208 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 15:29:57,208 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 15:29:57,208 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 15:29:57,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 15:29:57,211 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 15:29:57,212 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 15:29:57,215 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 [2020-08-21 15:29:57,256 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 15:29:57,256 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 15:29:57,257 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 15:29:57,258 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 15:29:57,258 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 15:29:57,258 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 15:29:57,258 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 15:29:57,258 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 15:29:57,259 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 15:29:57,259 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 15:29:57,259 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 15:29:57,260 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 15:29:57,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 15:29:57,260 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 15:29:57,260 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 15:29:57,260 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 15:29:57,261 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 15:29:57,262 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 15:29:57,262 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 15:29:57,262 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 15:29:57,263 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 15:29:57,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 15:29:57,263 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 15:29:57,263 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 15:29:57,263 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 15:29:57,264 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 15:29:57,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 15:29:57,264 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 15:29:57,264 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 15:29:57,264 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=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-08-21 15:29:57,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 15:29:57,558 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 15:29:57,563 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 15:29:57,564 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 15:29:57,565 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 15:29:57,565 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product46.cil.c [2020-08-21 15:29:57,636 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fc89fd4b0/f5c5ce2acba449af9511da08ee5fe56c/FLAG06504837d [2020-08-21 15:29:58,113 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 15:29:58,114 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product46.cil.c [2020-08-21 15:29:58,127 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fc89fd4b0/f5c5ce2acba449af9511da08ee5fe56c/FLAG06504837d [2020-08-21 15:29:58,497 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fc89fd4b0/f5c5ce2acba449af9511da08ee5fe56c [2020-08-21 15:29:58,505 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 15:29:58,506 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 15:29:58,507 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 15:29:58,507 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 15:29:58,511 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 15:29:58,512 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 03:29:58" (1/1) ... [2020-08-21 15:29:58,514 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bb94b18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 03:29:58, skipping insertion in model container [2020-08-21 15:29:58,515 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 03:29:58" (1/1) ... [2020-08-21 15:29:58,522 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 15:29:58,574 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 15:29:59,016 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 15:29:59,038 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 15:29:59,156 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 15:29:59,192 INFO L208 MainTranslator]: Completed translation [2020-08-21 15:29:59,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 03:29:59 WrapperNode [2020-08-21 15:29:59,193 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 15:29:59,194 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 15:29:59,194 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 15:29:59,194 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 15:29:59,207 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 03:29:59" (1/1) ... [2020-08-21 15:29:59,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 03:29:59" (1/1) ... [2020-08-21 15:29:59,226 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 03:29:59" (1/1) ... [2020-08-21 15:29:59,227 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 03:29:59" (1/1) ... [2020-08-21 15:29:59,258 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 03:29:59" (1/1) ... [2020-08-21 15:29:59,272 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 03:29:59" (1/1) ... [2020-08-21 15:29:59,279 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 03:29:59" (1/1) ... [2020-08-21 15:29:59,292 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 15:29:59,293 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 15:29:59,293 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 15:29:59,293 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 15:29:59,294 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 03:29:59" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 15:29:59,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 15:29:59,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 15:29:59,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-21 15:29:59,362 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-21 15:29:59,363 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-21 15:29:59,363 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-21 15:29:59,363 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-08-21 15:29:59,363 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-21 15:29:59,363 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-08-21 15:29:59,363 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-21 15:29:59,364 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-21 15:29:59,364 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-21 15:29:59,364 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-21 15:29:59,364 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-21 15:29:59,364 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-21 15:29:59,364 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-21 15:29:59,365 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-21 15:29:59,365 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-21 15:29:59,365 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-21 15:29:59,365 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-21 15:29:59,365 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 15:29:59,365 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-21 15:29:59,366 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-21 15:29:59,366 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-21 15:29:59,366 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-21 15:29:59,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-21 15:29:59,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-08-21 15:29:59,366 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-21 15:29:59,367 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-21 15:29:59,367 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-21 15:29:59,367 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-21 15:29:59,367 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-21 15:29:59,367 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-21 15:29:59,367 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-21 15:29:59,367 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-21 15:29:59,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-21 15:29:59,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-21 15:29:59,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-21 15:29:59,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-21 15:29:59,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-21 15:29:59,368 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 15:29:59,368 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 15:29:59,369 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-21 15:29:59,369 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-21 15:29:59,369 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-21 15:29:59,369 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-21 15:29:59,369 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-21 15:29:59,369 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-21 15:29:59,369 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-21 15:29:59,370 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-21 15:29:59,370 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-21 15:29:59,370 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-21 15:29:59,370 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-21 15:29:59,370 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-21 15:29:59,370 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-21 15:29:59,371 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-21 15:29:59,371 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-21 15:29:59,371 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-08-21 15:29:59,371 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-21 15:29:59,371 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-21 15:29:59,371 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-21 15:29:59,371 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-08-21 15:29:59,372 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-21 15:29:59,372 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-08-21 15:29:59,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-21 15:29:59,372 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-21 15:29:59,372 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-21 15:29:59,372 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-21 15:29:59,372 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-21 15:29:59,373 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-21 15:29:59,373 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-21 15:29:59,373 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 15:29:59,373 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-21 15:29:59,373 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-21 15:29:59,373 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-21 15:29:59,373 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-21 15:29:59,374 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-21 15:29:59,374 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-21 15:29:59,374 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-21 15:29:59,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-21 15:29:59,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-21 15:29:59,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 15:29:59,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-21 15:29:59,375 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-21 15:29:59,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 15:29:59,375 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-21 15:29:59,375 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-21 15:29:59,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 15:29:59,375 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-21 15:29:59,376 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-21 15:29:59,376 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-21 15:29:59,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 15:29:59,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-21 15:29:59,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 15:30:00,333 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 15:30:00,333 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-21 15:30:00,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 03:30:00 BoogieIcfgContainer [2020-08-21 15:30:00,339 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 15:30:00,340 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 15:30:00,340 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 15:30:00,343 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 15:30:00,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 03:29:58" (1/3) ... [2020-08-21 15:30:00,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61f34c9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 03:30:00, skipping insertion in model container [2020-08-21 15:30:00,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 03:29:59" (2/3) ... [2020-08-21 15:30:00,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61f34c9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 03:30:00, skipping insertion in model container [2020-08-21 15:30:00,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 03:30:00" (3/3) ... [2020-08-21 15:30:00,347 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product46.cil.c [2020-08-21 15:30:00,356 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 15:30:00,364 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 15:30:00,377 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 15:30:00,401 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 15:30:00,402 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 15:30:00,402 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 15:30:00,402 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 15:30:00,402 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 15:30:00,402 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 15:30:00,402 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 15:30:00,403 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 15:30:00,424 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states. [2020-08-21 15:30:00,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-08-21 15:30:00,434 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:30:00,435 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 15:30:00,436 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:30:00,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:30:00,442 INFO L82 PathProgramCache]: Analyzing trace with hash 1417441614, now seen corresponding path program 1 times [2020-08-21 15:30:00,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:30:00,451 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1787348217] [2020-08-21 15:30:00,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:30:00,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:01,108 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-21 15:30:01,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:30:01,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:01,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 15:30:01,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:01,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 15:30:01,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:01,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 15:30:01,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:01,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 15:30:01,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:01,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 15:30:01,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:01,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-21 15:30:01,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:01,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 15:30:01,224 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1787348217] [2020-08-21 15:30:01,226 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 15:30:01,226 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-21 15:30:01,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753172606] [2020-08-21 15:30:01,236 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-21 15:30:01,236 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:30:01,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-21 15:30:01,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-21 15:30:01,253 INFO L87 Difference]: Start difference. First operand 177 states. Second operand 3 states. [2020-08-21 15:30:02,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 15:30:02,394 INFO L93 Difference]: Finished difference Result 312 states and 408 transitions. [2020-08-21 15:30:02,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-21 15:30:02,396 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-08-21 15:30:02,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 15:30:02,411 INFO L225 Difference]: With dead ends: 312 [2020-08-21 15:30:02,411 INFO L226 Difference]: Without dead ends: 169 [2020-08-21 15:30:02,416 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-21 15:30:02,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-08-21 15:30:02,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 134. [2020-08-21 15:30:02,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-08-21 15:30:02,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 158 transitions. [2020-08-21 15:30:02,524 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 158 transitions. Word has length 46 [2020-08-21 15:30:02,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 15:30:02,525 INFO L479 AbstractCegarLoop]: Abstraction has 134 states and 158 transitions. [2020-08-21 15:30:02,525 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-21 15:30:02,525 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 158 transitions. [2020-08-21 15:30:02,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-08-21 15:30:02,536 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:30:02,536 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 15:30:02,537 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 15:30:02,537 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:30:02,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:30:02,564 INFO L82 PathProgramCache]: Analyzing trace with hash -1689810546, now seen corresponding path program 1 times [2020-08-21 15:30:02,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:30:02,565 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1675242249] [2020-08-21 15:30:02,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:30:02,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:02,931 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-21 15:30:02,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:30:02,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:02,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 15:30:02,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:02,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 15:30:02,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:02,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 15:30:02,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:02,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 15:30:02,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:02,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-21 15:30:02,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:02,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-21 15:30:02,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:02,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 15:30:02,971 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1675242249] [2020-08-21 15:30:02,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 15:30:02,972 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 15:30:02,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205536135] [2020-08-21 15:30:02,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-21 15:30:02,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:30:02,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-21 15:30:02,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-21 15:30:02,975 INFO L87 Difference]: Start difference. First operand 134 states and 158 transitions. Second operand 4 states. [2020-08-21 15:30:03,420 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 15:30:04,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 15:30:04,351 INFO L93 Difference]: Finished difference Result 241 states and 295 transitions. [2020-08-21 15:30:04,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 15:30:04,352 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-08-21 15:30:04,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 15:30:04,355 INFO L225 Difference]: With dead ends: 241 [2020-08-21 15:30:04,355 INFO L226 Difference]: Without dead ends: 153 [2020-08-21 15:30:04,357 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-21 15:30:04,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-08-21 15:30:04,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 125. [2020-08-21 15:30:04,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-08-21 15:30:04,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 146 transitions. [2020-08-21 15:30:04,395 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 146 transitions. Word has length 47 [2020-08-21 15:30:04,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 15:30:04,395 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 146 transitions. [2020-08-21 15:30:04,396 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-21 15:30:04,396 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 146 transitions. [2020-08-21 15:30:04,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-08-21 15:30:04,397 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:30:04,398 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 15:30:04,398 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 15:30:04,398 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:30:04,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:30:04,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1011180464, now seen corresponding path program 1 times [2020-08-21 15:30:04,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:30:04,399 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1423895569] [2020-08-21 15:30:04,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:30:04,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:04,734 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-21 15:30:04,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:30:04,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:04,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 15:30:04,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:04,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 15:30:04,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:04,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 15:30:04,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:04,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 15:30:04,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:04,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-21 15:30:04,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:04,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-21 15:30:04,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:04,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 15:30:04,831 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1423895569] [2020-08-21 15:30:04,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 15:30:04,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-21 15:30:04,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486265157] [2020-08-21 15:30:04,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 15:30:04,832 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:30:04,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 15:30:04,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-21 15:30:04,833 INFO L87 Difference]: Start difference. First operand 125 states and 146 transitions. Second operand 8 states. [2020-08-21 15:30:05,222 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-21 15:30:05,566 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 15:30:05,813 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 15:30:06,040 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 15:30:07,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 15:30:07,231 INFO L93 Difference]: Finished difference Result 254 states and 313 transitions. [2020-08-21 15:30:07,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 15:30:07,232 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2020-08-21 15:30:07,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 15:30:07,235 INFO L225 Difference]: With dead ends: 254 [2020-08-21 15:30:07,235 INFO L226 Difference]: Without dead ends: 153 [2020-08-21 15:30:07,237 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-21 15:30:07,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-08-21 15:30:07,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 125. [2020-08-21 15:30:07,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-08-21 15:30:07,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 145 transitions. [2020-08-21 15:30:07,275 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 145 transitions. Word has length 52 [2020-08-21 15:30:07,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 15:30:07,276 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 145 transitions. [2020-08-21 15:30:07,276 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 15:30:07,276 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 145 transitions. [2020-08-21 15:30:07,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-08-21 15:30:07,278 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:30:07,278 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 15:30:07,278 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 15:30:07,279 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:30:07,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:30:07,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1017334303, now seen corresponding path program 1 times [2020-08-21 15:30:07,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:30:07,280 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1156708017] [2020-08-21 15:30:07,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:30:07,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:07,633 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-21 15:30:07,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:30:07,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:07,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 15:30:07,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:07,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 15:30:07,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:07,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 15:30:07,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:07,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 15:30:07,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:07,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-21 15:30:07,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:07,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 15:30:07,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:07,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 15:30:07,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:07,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-21 15:30:07,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:07,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-08-21 15:30:07,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:07,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 15:30:07,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1156708017] [2020-08-21 15:30:07,723 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 15:30:07,723 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 15:30:07,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360636200] [2020-08-21 15:30:07,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 15:30:07,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:30:07,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 15:30:07,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-21 15:30:07,726 INFO L87 Difference]: Start difference. First operand 125 states and 145 transitions. Second operand 6 states. [2020-08-21 15:30:08,075 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-21 15:30:09,168 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 15:30:09,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 15:30:09,853 INFO L93 Difference]: Finished difference Result 356 states and 440 transitions. [2020-08-21 15:30:09,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 15:30:09,859 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2020-08-21 15:30:09,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 15:30:09,862 INFO L225 Difference]: With dead ends: 356 [2020-08-21 15:30:09,862 INFO L226 Difference]: Without dead ends: 255 [2020-08-21 15:30:09,864 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-08-21 15:30:09,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2020-08-21 15:30:09,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 212. [2020-08-21 15:30:09,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-08-21 15:30:09,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 241 transitions. [2020-08-21 15:30:09,924 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 241 transitions. Word has length 65 [2020-08-21 15:30:09,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 15:30:09,924 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 241 transitions. [2020-08-21 15:30:09,925 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 15:30:09,925 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 241 transitions. [2020-08-21 15:30:09,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-08-21 15:30:09,926 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:30:09,926 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 15:30:09,927 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 15:30:09,927 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:30:09,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:30:09,927 INFO L82 PathProgramCache]: Analyzing trace with hash 1244154125, now seen corresponding path program 1 times [2020-08-21 15:30:09,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:30:09,928 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [238867111] [2020-08-21 15:30:09,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:30:09,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:10,218 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-21 15:30:10,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:30:10,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:10,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 15:30:10,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:10,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 15:30:10,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:10,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 15:30:10,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:10,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 15:30:10,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:10,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-21 15:30:10,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:10,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 15:30:10,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:10,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 15:30:10,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:10,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 15:30:10,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:10,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 15:30:10,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:10,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-21 15:30:10,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:10,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-21 15:30:10,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:10,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 15:30:10,318 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [238867111] [2020-08-21 15:30:10,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 15:30:10,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-21 15:30:10,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112514717] [2020-08-21 15:30:10,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 15:30:10,321 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:30:10,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 15:30:10,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-21 15:30:10,323 INFO L87 Difference]: Start difference. First operand 212 states and 241 transitions. Second operand 8 states. [2020-08-21 15:30:10,733 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-21 15:30:11,671 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 15:30:11,973 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-21 15:30:12,459 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 15:30:12,676 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 15:30:12,963 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 15:30:13,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 15:30:13,824 INFO L93 Difference]: Finished difference Result 634 states and 779 transitions. [2020-08-21 15:30:13,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-21 15:30:13,825 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2020-08-21 15:30:13,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 15:30:13,830 INFO L225 Difference]: With dead ends: 634 [2020-08-21 15:30:13,830 INFO L226 Difference]: Without dead ends: 446 [2020-08-21 15:30:13,832 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-08-21 15:30:13,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2020-08-21 15:30:13,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 379. [2020-08-21 15:30:13,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2020-08-21 15:30:13,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 432 transitions. [2020-08-21 15:30:13,907 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 432 transitions. Word has length 79 [2020-08-21 15:30:13,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 15:30:13,907 INFO L479 AbstractCegarLoop]: Abstraction has 379 states and 432 transitions. [2020-08-21 15:30:13,907 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 15:30:13,907 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 432 transitions. [2020-08-21 15:30:13,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-08-21 15:30:13,909 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:30:13,909 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 15:30:13,910 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 15:30:13,910 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:30:13,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:30:13,910 INFO L82 PathProgramCache]: Analyzing trace with hash -1996569391, now seen corresponding path program 1 times [2020-08-21 15:30:13,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:30:13,911 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1621409912] [2020-08-21 15:30:13,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:30:13,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:14,189 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-21 15:30:14,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:30:14,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:14,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 15:30:14,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:14,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 15:30:14,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:14,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 15:30:14,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:14,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 15:30:14,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:14,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-21 15:30:14,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:14,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-21 15:30:14,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:14,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 15:30:14,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:14,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 15:30:14,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:14,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 15:30:14,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:14,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 15:30:14,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:14,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-08-21 15:30:14,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:14,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-08-21 15:30:14,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:14,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 15:30:14,322 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1621409912] [2020-08-21 15:30:14,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 15:30:14,323 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-21 15:30:14,324 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374883870] [2020-08-21 15:30:14,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 15:30:14,324 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:30:14,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 15:30:14,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-21 15:30:14,325 INFO L87 Difference]: Start difference. First operand 379 states and 432 transitions. Second operand 9 states. [2020-08-21 15:30:14,676 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-21 15:30:15,752 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-21 15:30:16,039 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 15:30:16,920 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 15:30:17,165 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 15:30:17,382 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 15:30:17,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 15:30:17,705 INFO L93 Difference]: Finished difference Result 488 states and 612 transitions. [2020-08-21 15:30:17,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-21 15:30:17,713 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2020-08-21 15:30:17,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 15:30:17,717 INFO L225 Difference]: With dead ends: 488 [2020-08-21 15:30:17,717 INFO L226 Difference]: Without dead ends: 485 [2020-08-21 15:30:17,718 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-08-21 15:30:17,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2020-08-21 15:30:17,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 379. [2020-08-21 15:30:17,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2020-08-21 15:30:17,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 431 transitions. [2020-08-21 15:30:17,787 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 431 transitions. Word has length 83 [2020-08-21 15:30:17,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 15:30:17,788 INFO L479 AbstractCegarLoop]: Abstraction has 379 states and 431 transitions. [2020-08-21 15:30:17,788 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 15:30:17,788 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 431 transitions. [2020-08-21 15:30:17,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-08-21 15:30:17,790 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:30:17,790 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] [2020-08-21 15:30:17,790 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-21 15:30:17,790 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:30:17,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:30:17,791 INFO L82 PathProgramCache]: Analyzing trace with hash -1098775200, now seen corresponding path program 1 times [2020-08-21 15:30:17,791 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:30:17,791 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1266524136] [2020-08-21 15:30:17,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:30:17,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:18,017 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-21 15:30:18,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:30:18,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:18,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 15:30:18,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:18,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 15:30:18,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:18,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 15:30:18,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:18,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 15:30:18,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:18,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-21 15:30:18,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:18,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-21 15:30:18,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:18,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 15:30:18,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:18,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 15:30:18,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:18,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 15:30:18,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:18,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 15:30:18,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:18,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 15:30:18,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:18,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 15:30:18,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:18,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 15:30:18,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:18,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-08-21 15:30:18,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:18,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-21 15:30:18,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:18,161 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-21 15:30:18,161 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1266524136] [2020-08-21 15:30:18,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 15:30:18,162 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-21 15:30:18,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83299592] [2020-08-21 15:30:18,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 15:30:18,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:30:18,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 15:30:18,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-21 15:30:18,163 INFO L87 Difference]: Start difference. First operand 379 states and 431 transitions. Second operand 9 states. [2020-08-21 15:30:19,189 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 15:30:19,420 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 15:30:19,693 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 15:30:19,927 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 15:30:20,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 15:30:20,956 INFO L93 Difference]: Finished difference Result 848 states and 1052 transitions. [2020-08-21 15:30:20,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 15:30:20,956 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 99 [2020-08-21 15:30:20,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 15:30:20,961 INFO L225 Difference]: With dead ends: 848 [2020-08-21 15:30:20,961 INFO L226 Difference]: Without dead ends: 493 [2020-08-21 15:30:20,963 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-08-21 15:30:20,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2020-08-21 15:30:21,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 389. [2020-08-21 15:30:21,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 389 states. [2020-08-21 15:30:21,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 441 transitions. [2020-08-21 15:30:21,053 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 441 transitions. Word has length 99 [2020-08-21 15:30:21,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 15:30:21,053 INFO L479 AbstractCegarLoop]: Abstraction has 389 states and 441 transitions. [2020-08-21 15:30:21,053 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 15:30:21,054 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 441 transitions. [2020-08-21 15:30:21,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-08-21 15:30:21,055 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:30:21,055 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] [2020-08-21 15:30:21,056 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-21 15:30:21,056 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:30:21,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:30:21,056 INFO L82 PathProgramCache]: Analyzing trace with hash -205288862, now seen corresponding path program 1 times [2020-08-21 15:30:21,057 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:30:21,057 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [423680099] [2020-08-21 15:30:21,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:30:21,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:21,342 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-21 15:30:21,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:30:21,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:21,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 15:30:21,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:21,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 15:30:21,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:21,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 15:30:21,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:21,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 15:30:21,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:21,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-21 15:30:21,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:21,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-21 15:30:21,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:21,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 15:30:21,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:21,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 15:30:21,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:21,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 15:30:21,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:21,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 15:30:21,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:21,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 15:30:21,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:21,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 15:30:21,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:21,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 15:30:21,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:21,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-08-21 15:30:21,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:21,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-21 15:30:21,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:21,474 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-21 15:30:21,475 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [423680099] [2020-08-21 15:30:21,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 15:30:21,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-21 15:30:21,475 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642305091] [2020-08-21 15:30:21,476 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-21 15:30:21,476 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:30:21,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-21 15:30:21,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-08-21 15:30:21,477 INFO L87 Difference]: Start difference. First operand 389 states and 441 transitions. Second operand 11 states. [2020-08-21 15:30:21,932 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 15:30:22,157 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 15:30:22,372 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 15:30:22,965 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 15:30:23,208 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 15:30:23,449 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 15:30:24,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 15:30:24,572 INFO L93 Difference]: Finished difference Result 868 states and 1074 transitions. [2020-08-21 15:30:24,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-21 15:30:24,579 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 99 [2020-08-21 15:30:24,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 15:30:24,584 INFO L225 Difference]: With dead ends: 868 [2020-08-21 15:30:24,584 INFO L226 Difference]: Without dead ends: 503 [2020-08-21 15:30:24,586 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-08-21 15:30:24,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2020-08-21 15:30:24,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 397. [2020-08-21 15:30:24,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2020-08-21 15:30:24,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 449 transitions. [2020-08-21 15:30:24,684 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 449 transitions. Word has length 99 [2020-08-21 15:30:24,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 15:30:24,684 INFO L479 AbstractCegarLoop]: Abstraction has 397 states and 449 transitions. [2020-08-21 15:30:24,684 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-21 15:30:24,684 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 449 transitions. [2020-08-21 15:30:24,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-08-21 15:30:24,690 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:30:24,690 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] [2020-08-21 15:30:24,691 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-21 15:30:24,691 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:30:24,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:30:24,691 INFO L82 PathProgramCache]: Analyzing trace with hash -213048221, now seen corresponding path program 1 times [2020-08-21 15:30:24,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:30:24,692 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [271987334] [2020-08-21 15:30:24,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:30:24,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:24,939 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-21 15:30:24,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:30:24,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:24,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 15:30:24,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:24,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 15:30:24,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:24,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 15:30:24,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:24,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 15:30:24,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:24,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-21 15:30:24,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:24,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-21 15:30:24,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:25,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 15:30:25,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:25,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 15:30:25,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:25,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 15:30:25,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:25,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 15:30:25,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:25,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 15:30:25,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:25,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 15:30:25,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:25,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 15:30:25,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:25,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-08-21 15:30:25,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:25,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-21 15:30:25,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:25,099 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-21 15:30:25,100 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [271987334] [2020-08-21 15:30:25,100 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 15:30:25,100 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-21 15:30:25,100 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912498508] [2020-08-21 15:30:25,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 15:30:25,101 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:30:25,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 15:30:25,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-21 15:30:25,102 INFO L87 Difference]: Start difference. First operand 397 states and 449 transitions. Second operand 7 states. [2020-08-21 15:30:25,650 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-21 15:30:26,166 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-21 15:30:28,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 15:30:28,295 INFO L93 Difference]: Finished difference Result 1210 states and 1548 transitions. [2020-08-21 15:30:28,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-21 15:30:28,296 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 99 [2020-08-21 15:30:28,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 15:30:28,302 INFO L225 Difference]: With dead ends: 1210 [2020-08-21 15:30:28,302 INFO L226 Difference]: Without dead ends: 837 [2020-08-21 15:30:28,303 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 39 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-08-21 15:30:28,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2020-08-21 15:30:28,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 717. [2020-08-21 15:30:28,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 717 states. [2020-08-21 15:30:28,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 843 transitions. [2020-08-21 15:30:28,442 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 843 transitions. Word has length 99 [2020-08-21 15:30:28,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 15:30:28,444 INFO L479 AbstractCegarLoop]: Abstraction has 717 states and 843 transitions. [2020-08-21 15:30:28,444 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 15:30:28,444 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 843 transitions. [2020-08-21 15:30:28,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-08-21 15:30:28,447 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:30:28,447 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] [2020-08-21 15:30:28,447 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-21 15:30:28,447 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:30:28,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:30:28,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1140072279, now seen corresponding path program 1 times [2020-08-21 15:30:28,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:30:28,448 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1657347012] [2020-08-21 15:30:28,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:30:28,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:28,714 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-21 15:30:28,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:30:28,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:28,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 15:30:28,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:28,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 15:30:28,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:28,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 15:30:28,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:28,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 15:30:28,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:28,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-21 15:30:28,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:28,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-21 15:30:28,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:28,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-21 15:30:28,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:28,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 15:30:28,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:28,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 15:30:28,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:28,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 15:30:28,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:28,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 15:30:28,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:28,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 15:30:28,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:29,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 15:30:29,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:29,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 15:30:29,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:29,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-21 15:30:29,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:29,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-08-21 15:30:29,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:29,078 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-21 15:30:29,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1657347012] [2020-08-21 15:30:29,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 15:30:29,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-08-21 15:30:29,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418775569] [2020-08-21 15:30:29,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-08-21 15:30:29,080 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:30:29,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-08-21 15:30:29,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2020-08-21 15:30:29,081 INFO L87 Difference]: Start difference. First operand 717 states and 843 transitions. Second operand 17 states. [2020-08-21 15:30:30,041 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-21 15:30:30,358 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 15:30:30,600 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 15:30:30,829 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 15:30:31,425 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-21 15:30:32,396 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 15:30:32,712 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 15:30:32,954 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 15:30:33,213 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 15:30:33,495 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 15:30:33,759 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 15:30:34,278 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-08-21 15:30:34,806 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-08-21 15:30:36,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 15:30:36,907 INFO L93 Difference]: Finished difference Result 1499 states and 1843 transitions. [2020-08-21 15:30:36,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-08-21 15:30:36,907 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 103 [2020-08-21 15:30:36,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 15:30:36,913 INFO L225 Difference]: With dead ends: 1499 [2020-08-21 15:30:36,914 INFO L226 Difference]: Without dead ends: 806 [2020-08-21 15:30:36,917 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 374 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=342, Invalid=1380, Unknown=0, NotChecked=0, Total=1722 [2020-08-21 15:30:36,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2020-08-21 15:30:37,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 689. [2020-08-21 15:30:37,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 689 states. [2020-08-21 15:30:37,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 797 transitions. [2020-08-21 15:30:37,048 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 797 transitions. Word has length 103 [2020-08-21 15:30:37,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 15:30:37,049 INFO L479 AbstractCegarLoop]: Abstraction has 689 states and 797 transitions. [2020-08-21 15:30:37,049 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-08-21 15:30:37,049 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 797 transitions. [2020-08-21 15:30:37,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-08-21 15:30:37,051 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 15:30:37,054 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1] [2020-08-21 15:30:37,054 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-21 15:30:37,055 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 15:30:37,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 15:30:37,055 INFO L82 PathProgramCache]: Analyzing trace with hash 1934361844, now seen corresponding path program 1 times [2020-08-21 15:30:37,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 15:30:37,055 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1494999893] [2020-08-21 15:30:37,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 15:30:37,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:37,347 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-21 15:30:37,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 15:30:37,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:37,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 15:30:37,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:37,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 15:30:37,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:37,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 15:30:37,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:37,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 15:30:37,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:37,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-21 15:30:37,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:37,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 15:30:37,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:37,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 15:30:37,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:37,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 15:30:37,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:37,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 15:30:37,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:37,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 15:30:37,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:37,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 15:30:37,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:37,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 15:30:37,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:37,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 15:30:37,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:37,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 15:30:37,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:37,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-21 15:30:37,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:37,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 15:30:37,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:37,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-08-21 15:30:37,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:37,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-08-21 15:30:37,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:37,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-08-21 15:30:37,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:37,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 15:30:37,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:37,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 15:30:37,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:37,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-21 15:30:37,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:37,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 15:30:37,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:37,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-08-21 15:30:37,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:37,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-08-21 15:30:37,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 15:30:37,626 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-08-21 15:30:37,629 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1494999893] [2020-08-21 15:30:37,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 15:30:37,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-08-21 15:30:37,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159379637] [2020-08-21 15:30:37,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-08-21 15:30:37,630 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 15:30:37,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-08-21 15:30:37,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2020-08-21 15:30:37,631 INFO L87 Difference]: Start difference. First operand 689 states and 797 transitions. Second operand 18 states. [2020-08-21 15:30:38,403 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-21 15:30:38,717 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 15:30:38,966 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 15:30:39,199 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 15:30:39,811 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-21 15:30:40,815 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 15:30:41,111 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 15:30:41,361 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 15:30:41,617 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 15:30:41,915 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 15:30:42,163 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 15:30:43,215 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 15:30:43,444 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 15:30:43,703 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 15:30:43,934 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 15:30:44,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 15:30:44,720 INFO L93 Difference]: Finished difference Result 1274 states and 1566 transitions. [2020-08-21 15:30:44,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-08-21 15:30:44,721 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 155 [2020-08-21 15:30:44,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 15:30:44,722 INFO L225 Difference]: With dead ends: 1274 [2020-08-21 15:30:44,722 INFO L226 Difference]: Without dead ends: 0 [2020-08-21 15:30:44,728 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 467 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=378, Invalid=1692, Unknown=0, NotChecked=0, Total=2070 [2020-08-21 15:30:44,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-21 15:30:44,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-21 15:30:44,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-21 15:30:44,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-21 15:30:44,729 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 155 [2020-08-21 15:30:44,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 15:30:44,729 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-21 15:30:44,729 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-08-21 15:30:44,729 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-21 15:30:44,729 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-21 15:30:44,730 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-21 15:30:44,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-21 15:30:45,765 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 200 [2020-08-21 15:30:45,888 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 198 [2020-08-21 15:30:47,294 WARN L193 SmtUtils]: Spent 640.00 ms on a formula simplification. DAG size of input: 297 DAG size of output: 262 [2020-08-21 15:30:48,539 WARN L193 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 299 DAG size of output: 263 [2020-08-21 15:30:50,147 WARN L193 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 299 DAG size of output: 263 [2020-08-21 15:30:51,048 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 297 DAG size of output: 262 [2020-08-21 15:30:51,551 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 297 DAG size of output: 262 [2020-08-21 15:30:51,742 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 18 [2020-08-21 15:30:52,230 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 16 [2020-08-21 15:30:52,733 WARN L193 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 24 [2020-08-21 15:30:52,900 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 1 [2020-08-21 15:30:53,073 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 24 [2020-08-21 15:30:53,248 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 1 [2020-08-21 15:30:53,809 WARN L193 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 24 [2020-08-21 15:30:54,684 WARN L193 SmtUtils]: Spent 861.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 23 [2020-08-21 15:30:55,158 WARN L193 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 19 [2020-08-21 15:30:56,471 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 200 DAG size of output: 27 [2020-08-21 15:30:56,619 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 1 [2020-08-21 15:30:56,782 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 24 [2020-08-21 15:30:57,241 WARN L193 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 15