/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product38.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-22 04:34:01,243 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 04:34:01,245 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 04:34:01,269 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 04:34:01,269 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 04:34:01,270 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 04:34:01,272 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 04:34:01,273 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 04:34:01,275 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 04:34:01,276 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 04:34:01,277 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 04:34:01,278 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 04:34:01,278 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 04:34:01,279 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 04:34:01,280 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 04:34:01,281 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 04:34:01,282 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 04:34:01,283 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 04:34:01,285 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 04:34:01,287 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 04:34:01,288 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 04:34:01,289 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 04:34:01,290 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 04:34:01,291 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 04:34:01,294 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 04:34:01,294 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 04:34:01,294 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 04:34:01,295 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 04:34:01,296 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 04:34:01,297 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 04:34:01,297 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 04:34:01,298 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 04:34:01,298 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 04:34:01,299 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 04:34:01,300 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 04:34:01,300 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 04:34:01,301 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 04:34:01,301 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 04:34:01,302 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 04:34:01,303 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 04:34:01,303 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 04:34:01,304 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-22 04:34:01,342 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 04:34:01,345 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 04:34:01,346 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 04:34:01,347 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 04:34:01,347 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 04:34:01,347 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 04:34:01,347 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 04:34:01,347 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 04:34:01,348 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 04:34:01,350 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 04:34:01,350 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 04:34:01,350 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 04:34:01,350 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 04:34:01,351 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 04:34:01,351 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 04:34:01,351 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 04:34:01,351 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 04:34:01,351 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 04:34:01,352 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 04:34:01,352 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 04:34:01,352 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 04:34:01,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 04:34:01,352 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 04:34:01,353 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 04:34:01,356 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 04:34:01,356 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 04:34:01,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 04:34:01,356 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 04:34:01,357 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 04:34:01,357 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-08-22 04:34:01,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 04:34:01,711 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 04:34:01,715 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 04:34:01,716 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 04:34:01,717 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 04:34:01,718 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product38.cil.c [2020-08-22 04:34:01,794 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/17aecc4eb/992404494575487699a61ead01941ef3/FLAGd99a9fcc5 [2020-08-22 04:34:02,294 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 04:34:02,295 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product38.cil.c [2020-08-22 04:34:02,308 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/17aecc4eb/992404494575487699a61ead01941ef3/FLAGd99a9fcc5 [2020-08-22 04:34:02,605 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/17aecc4eb/992404494575487699a61ead01941ef3 [2020-08-22 04:34:02,613 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 04:34:02,615 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 04:34:02,616 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 04:34:02,616 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 04:34:02,620 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 04:34:02,621 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:34:02" (1/1) ... [2020-08-22 04:34:02,624 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@366b14c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:34:02, skipping insertion in model container [2020-08-22 04:34:02,624 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:34:02" (1/1) ... [2020-08-22 04:34:02,631 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 04:34:02,674 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 04:34:03,033 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 04:34:03,139 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 04:34:03,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 04:34:03,257 INFO L208 MainTranslator]: Completed translation [2020-08-22 04:34:03,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:34:03 WrapperNode [2020-08-22 04:34:03,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 04:34:03,258 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 04:34:03,259 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 04:34:03,259 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 04:34:03,272 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:34:03" (1/1) ... [2020-08-22 04:34:03,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:34:03" (1/1) ... [2020-08-22 04:34:03,292 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:34:03" (1/1) ... [2020-08-22 04:34:03,293 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:34:03" (1/1) ... [2020-08-22 04:34:03,327 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:34:03" (1/1) ... [2020-08-22 04:34:03,338 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:34:03" (1/1) ... [2020-08-22 04:34:03,343 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:34:03" (1/1) ... [2020-08-22 04:34:03,352 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 04:34:03,352 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 04:34:03,352 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 04:34:03,353 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 04:34:03,353 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:34:03" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 04:34:03,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 04:34:03,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 04:34:03,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 04:34:03,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 04:34:03,423 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 04:34:03,423 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 04:34:03,424 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 04:34:03,424 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 04:34:03,424 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 04:34:03,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-08-22 04:34:03,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-08-22 04:34:03,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-08-22 04:34:03,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 04:34:03,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 04:34:03,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 04:34:03,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 04:34:03,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 04:34:03,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 04:34:03,427 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 04:34:03,427 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 04:34:03,428 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 04:34:03,428 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 04:34:03,428 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 04:34:03,428 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 04:34:03,429 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-22 04:34:03,431 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 04:34:03,431 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-22 04:34:03,431 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-08-22 04:34:03,431 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 04:34:03,432 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 04:34:03,432 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 04:34:03,432 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 04:34:03,433 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 04:34:03,433 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 04:34:03,433 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-22 04:34:03,433 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-22 04:34:03,433 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 04:34:03,433 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 04:34:03,434 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 04:34:03,434 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 04:34:03,434 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 04:34:03,434 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 04:34:03,434 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 04:34:03,434 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 04:34:03,435 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 04:34:03,435 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 04:34:03,435 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 04:34:03,435 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 04:34:03,435 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 04:34:03,435 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 04:34:03,435 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 04:34:03,436 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 04:34:03,436 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-08-22 04:34:03,436 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 04:34:03,436 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 04:34:03,437 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 04:34:03,437 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 04:34:03,437 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 04:34:03,438 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 04:34:03,438 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 04:34:03,438 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 04:34:03,438 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-08-22 04:34:03,438 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-08-22 04:34:03,438 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 04:34:03,439 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 04:34:03,439 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 04:34:03,439 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 04:34:03,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 04:34:03,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 04:34:03,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 04:34:03,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 04:34:03,440 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 04:34:03,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 04:34:03,441 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 04:34:03,441 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 04:34:03,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 04:34:03,442 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 04:34:03,442 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 04:34:03,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 04:34:03,443 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 04:34:03,443 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 04:34:03,443 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 04:34:03,444 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 04:34:03,444 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-22 04:34:03,444 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 04:34:03,444 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 04:34:03,445 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-22 04:34:03,445 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 04:34:03,445 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-22 04:34:03,445 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-22 04:34:03,445 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-08-22 04:34:03,445 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 04:34:03,445 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 04:34:03,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 04:34:03,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 04:34:03,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 04:34:04,587 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 04:34:04,587 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 04:34:04,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:34:04 BoogieIcfgContainer [2020-08-22 04:34:04,593 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 04:34:04,594 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 04:34:04,594 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 04:34:04,597 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 04:34:04,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 04:34:02" (1/3) ... [2020-08-22 04:34:04,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@293337e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:34:04, skipping insertion in model container [2020-08-22 04:34:04,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:34:03" (2/3) ... [2020-08-22 04:34:04,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@293337e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:34:04, skipping insertion in model container [2020-08-22 04:34:04,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:34:04" (3/3) ... [2020-08-22 04:34:04,601 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product38.cil.c [2020-08-22 04:34:04,611 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 04:34:04,619 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 04:34:04,633 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 04:34:04,657 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 04:34:04,658 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 04:34:04,658 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 04:34:04,658 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 04:34:04,658 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 04:34:04,659 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 04:34:04,659 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 04:34:04,659 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 04:34:04,681 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states. [2020-08-22 04:34:04,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-08-22 04:34:04,691 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:34:04,692 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 04:34:04,693 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:34:04,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:34:04,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1109188308, now seen corresponding path program 1 times [2020-08-22 04:34:04,705 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:34:04,705 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1759514584] [2020-08-22 04:34:04,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:34:04,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:05,332 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 04:34:05,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:05,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:05,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 04:34:05,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:05,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 04:34:05,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:05,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 04:34:05,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:05,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 04:34:05,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:05,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 04:34:05,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:05,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 04:34:05,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:05,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:05,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:05,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-22 04:34:05,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:05,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 04:34:05,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:05,491 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 04:34:05,492 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1759514584] [2020-08-22 04:34:05,494 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 04:34:05,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 04:34:05,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164744595] [2020-08-22 04:34:05,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 04:34:05,502 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:34:05,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 04:34:05,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-22 04:34:05,519 INFO L87 Difference]: Start difference. First operand 183 states. Second operand 4 states. [2020-08-22 04:34:06,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:34:06,595 INFO L93 Difference]: Finished difference Result 309 states and 395 transitions. [2020-08-22 04:34:06,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 04:34:06,598 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-08-22 04:34:06,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:34:06,612 INFO L225 Difference]: With dead ends: 309 [2020-08-22 04:34:06,613 INFO L226 Difference]: Without dead ends: 170 [2020-08-22 04:34:06,618 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-22 04:34:06,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-08-22 04:34:06,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 140. [2020-08-22 04:34:06,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-08-22 04:34:06,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 163 transitions. [2020-08-22 04:34:06,720 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 163 transitions. Word has length 59 [2020-08-22 04:34:06,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:34:06,720 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 163 transitions. [2020-08-22 04:34:06,720 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 04:34:06,721 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 163 transitions. [2020-08-22 04:34:06,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-08-22 04:34:06,726 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:34:06,726 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] [2020-08-22 04:34:06,727 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 04:34:06,727 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:34:06,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:34:06,727 INFO L82 PathProgramCache]: Analyzing trace with hash 813843432, now seen corresponding path program 1 times [2020-08-22 04:34:06,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:34:06,728 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2063976798] [2020-08-22 04:34:06,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:34:06,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:07,083 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 04:34:07,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:07,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:07,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 04:34:07,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:07,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 04:34:07,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:07,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 04:34:07,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:07,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 04:34:07,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:07,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 04:34:07,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:07,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 04:34:07,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:07,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:07,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:07,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-22 04:34:07,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:07,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-22 04:34:07,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:07,141 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 04:34:07,141 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2063976798] [2020-08-22 04:34:07,142 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 04:34:07,142 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 04:34:07,142 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627010299] [2020-08-22 04:34:07,144 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 04:34:07,144 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:34:07,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 04:34:07,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 04:34:07,145 INFO L87 Difference]: Start difference. First operand 140 states and 163 transitions. Second operand 5 states. [2020-08-22 04:34:07,624 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 04:34:08,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:34:08,507 INFO L93 Difference]: Finished difference Result 250 states and 303 transitions. [2020-08-22 04:34:08,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 04:34:08,508 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2020-08-22 04:34:08,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:34:08,511 INFO L225 Difference]: With dead ends: 250 [2020-08-22 04:34:08,512 INFO L226 Difference]: Without dead ends: 160 [2020-08-22 04:34:08,513 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-22 04:34:08,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-08-22 04:34:08,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 131. [2020-08-22 04:34:08,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-08-22 04:34:08,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 151 transitions. [2020-08-22 04:34:08,554 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 151 transitions. Word has length 60 [2020-08-22 04:34:08,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:34:08,555 INFO L479 AbstractCegarLoop]: Abstraction has 131 states and 151 transitions. [2020-08-22 04:34:08,555 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 04:34:08,555 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 151 transitions. [2020-08-22 04:34:08,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-08-22 04:34:08,557 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:34:08,558 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] [2020-08-22 04:34:08,558 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 04:34:08,558 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:34:08,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:34:08,559 INFO L82 PathProgramCache]: Analyzing trace with hash 605286682, now seen corresponding path program 1 times [2020-08-22 04:34:08,559 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:34:08,559 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1802886400] [2020-08-22 04:34:08,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:34:08,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:08,930 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 04:34:08,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:08,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:09,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 04:34:09,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:09,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 04:34:09,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:09,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 04:34:09,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:09,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 04:34:09,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:09,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 04:34:09,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:09,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 04:34:09,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:09,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:09,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:09,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 04:34:09,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:09,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-22 04:34:09,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:09,079 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 04:34:09,080 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1802886400] [2020-08-22 04:34:09,080 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 04:34:09,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 04:34:09,081 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998822669] [2020-08-22 04:34:09,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 04:34:09,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:34:09,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 04:34:09,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-22 04:34:09,083 INFO L87 Difference]: Start difference. First operand 131 states and 151 transitions. Second operand 9 states. [2020-08-22 04:34:09,446 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 04:34:09,780 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 04:34:10,018 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 04:34:10,264 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 04:34:11,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:34:11,541 INFO L93 Difference]: Finished difference Result 263 states and 322 transitions. [2020-08-22 04:34:11,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 04:34:11,544 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2020-08-22 04:34:11,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:34:11,547 INFO L225 Difference]: With dead ends: 263 [2020-08-22 04:34:11,547 INFO L226 Difference]: Without dead ends: 160 [2020-08-22 04:34:11,549 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-08-22 04:34:11,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-08-22 04:34:11,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 131. [2020-08-22 04:34:11,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-08-22 04:34:11,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 150 transitions. [2020-08-22 04:34:11,584 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 150 transitions. Word has length 65 [2020-08-22 04:34:11,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:34:11,585 INFO L479 AbstractCegarLoop]: Abstraction has 131 states and 150 transitions. [2020-08-22 04:34:11,585 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 04:34:11,585 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 150 transitions. [2020-08-22 04:34:11,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-08-22 04:34:11,587 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:34:11,587 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] [2020-08-22 04:34:11,588 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 04:34:11,588 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:34:11,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:34:11,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1239264208, now seen corresponding path program 1 times [2020-08-22 04:34:11,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:34:11,589 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1637491775] [2020-08-22 04:34:11,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:34:11,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:11,984 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 04:34:11,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:11,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:12,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 04:34:12,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:12,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 04:34:12,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:12,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 04:34:12,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:12,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 04:34:12,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:12,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 04:34:12,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:12,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 04:34:12,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:12,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:12,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:12,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-22 04:34:12,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:12,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:12,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:12,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:12,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:12,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-08-22 04:34:12,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:12,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-08-22 04:34:12,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:12,086 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 04:34:12,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1637491775] [2020-08-22 04:34:12,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 04:34:12,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 04:34:12,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259673445] [2020-08-22 04:34:12,088 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 04:34:12,088 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:34:12,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 04:34:12,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-22 04:34:12,089 INFO L87 Difference]: Start difference. First operand 131 states and 150 transitions. Second operand 7 states. [2020-08-22 04:34:12,510 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 04:34:13,928 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 04:34:14,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:34:14,503 INFO L93 Difference]: Finished difference Result 367 states and 456 transitions. [2020-08-22 04:34:14,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-22 04:34:14,504 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 78 [2020-08-22 04:34:14,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:34:14,509 INFO L225 Difference]: With dead ends: 367 [2020-08-22 04:34:14,509 INFO L226 Difference]: Without dead ends: 264 [2020-08-22 04:34:14,511 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-08-22 04:34:14,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2020-08-22 04:34:14,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 218. [2020-08-22 04:34:14,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-08-22 04:34:14,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 249 transitions. [2020-08-22 04:34:14,582 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 249 transitions. Word has length 78 [2020-08-22 04:34:14,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:34:14,582 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 249 transitions. [2020-08-22 04:34:14,582 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 04:34:14,583 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 249 transitions. [2020-08-22 04:34:14,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-08-22 04:34:14,585 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:34:14,586 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] [2020-08-22 04:34:14,586 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 04:34:14,586 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:34:14,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:34:14,587 INFO L82 PathProgramCache]: Analyzing trace with hash 462053503, now seen corresponding path program 1 times [2020-08-22 04:34:14,587 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:34:14,587 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1444822499] [2020-08-22 04:34:14,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:34:14,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:14,958 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 04:34:14,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:14,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:14,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 04:34:14,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:14,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 04:34:14,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:14,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 04:34:14,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:14,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 04:34:14,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:15,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 04:34:15,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:15,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 04:34:15,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:15,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:15,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:15,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-22 04:34:15,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:15,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:15,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:15,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:15,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:15,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:15,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:15,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 04:34:15,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:15,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-08-22 04:34:15,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:15,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 04:34:15,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:15,106 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-22 04:34:15,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1444822499] [2020-08-22 04:34:15,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 04:34:15,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 04:34:15,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861999919] [2020-08-22 04:34:15,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 04:34:15,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:34:15,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 04:34:15,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-22 04:34:15,109 INFO L87 Difference]: Start difference. First operand 218 states and 249 transitions. Second operand 9 states. [2020-08-22 04:34:15,475 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 04:34:16,194 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 04:34:16,879 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 04:34:17,208 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 04:34:17,713 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 04:34:17,987 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 04:34:18,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:34:18,563 INFO L93 Difference]: Finished difference Result 453 states and 550 transitions. [2020-08-22 04:34:18,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-22 04:34:18,564 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 92 [2020-08-22 04:34:18,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:34:18,568 INFO L225 Difference]: With dead ends: 453 [2020-08-22 04:34:18,568 INFO L226 Difference]: Without dead ends: 263 [2020-08-22 04:34:18,569 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-08-22 04:34:18,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2020-08-22 04:34:18,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 217. [2020-08-22 04:34:18,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-08-22 04:34:18,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 246 transitions. [2020-08-22 04:34:18,611 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 246 transitions. Word has length 92 [2020-08-22 04:34:18,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:34:18,611 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 246 transitions. [2020-08-22 04:34:18,612 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 04:34:18,612 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 246 transitions. [2020-08-22 04:34:18,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-08-22 04:34:18,613 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:34:18,613 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] [2020-08-22 04:34:18,614 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 04:34:18,614 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:34:18,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:34:18,614 INFO L82 PathProgramCache]: Analyzing trace with hash -440444759, now seen corresponding path program 1 times [2020-08-22 04:34:18,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:34:18,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1579954340] [2020-08-22 04:34:18,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:34:18,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:18,860 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 04:34:18,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:18,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:18,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 04:34:18,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:18,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 04:34:18,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:18,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 04:34:18,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:18,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 04:34:18,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:18,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 04:34:18,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:18,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 04:34:18,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:18,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:18,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:18,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-22 04:34:18,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:18,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:18,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:18,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:18,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:18,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:18,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:18,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 04:34:18,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:18,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-22 04:34:18,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:18,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 04:34:18,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:18,978 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 04:34:18,978 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1579954340] [2020-08-22 04:34:18,979 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 04:34:18,979 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 04:34:18,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984038745] [2020-08-22 04:34:18,981 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 04:34:18,981 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:34:18,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 04:34:18,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-22 04:34:18,982 INFO L87 Difference]: Start difference. First operand 217 states and 246 transitions. Second operand 9 states. [2020-08-22 04:34:20,015 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 04:34:20,244 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 04:34:20,489 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 04:34:20,716 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 04:34:21,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:34:21,421 INFO L93 Difference]: Finished difference Result 451 states and 544 transitions. [2020-08-22 04:34:21,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 04:34:21,424 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 93 [2020-08-22 04:34:21,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:34:21,427 INFO L225 Difference]: With dead ends: 451 [2020-08-22 04:34:21,427 INFO L226 Difference]: Without dead ends: 262 [2020-08-22 04:34:21,428 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-08-22 04:34:21,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-08-22 04:34:21,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 222. [2020-08-22 04:34:21,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2020-08-22 04:34:21,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 251 transitions. [2020-08-22 04:34:21,470 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 251 transitions. Word has length 93 [2020-08-22 04:34:21,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:34:21,471 INFO L479 AbstractCegarLoop]: Abstraction has 222 states and 251 transitions. [2020-08-22 04:34:21,471 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 04:34:21,471 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 251 transitions. [2020-08-22 04:34:21,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-08-22 04:34:21,472 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:34:21,472 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] [2020-08-22 04:34:21,473 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 04:34:21,473 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:34:21,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:34:21,473 INFO L82 PathProgramCache]: Analyzing trace with hash 261155115, now seen corresponding path program 1 times [2020-08-22 04:34:21,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:34:21,474 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [697663208] [2020-08-22 04:34:21,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:34:21,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:21,742 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 04:34:21,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:21,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:21,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 04:34:21,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:21,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 04:34:21,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:21,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 04:34:21,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:21,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 04:34:21,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:21,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 04:34:21,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:21,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 04:34:21,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:21,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:21,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:21,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-22 04:34:21,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:21,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:21,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:21,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:21,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:21,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:21,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:21,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 04:34:21,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:21,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-22 04:34:21,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:21,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 04:34:21,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:21,908 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 04:34:21,908 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [697663208] [2020-08-22 04:34:21,909 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 04:34:21,909 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-22 04:34:21,909 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205109450] [2020-08-22 04:34:21,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 04:34:21,911 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:34:21,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 04:34:21,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-08-22 04:34:21,917 INFO L87 Difference]: Start difference. First operand 222 states and 251 transitions. Second operand 11 states. [2020-08-22 04:34:22,494 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 04:34:22,727 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 04:34:22,953 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 04:34:23,692 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 04:34:23,939 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 04:34:24,174 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 04:34:24,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:34:24,995 INFO L93 Difference]: Finished difference Result 463 states and 564 transitions. [2020-08-22 04:34:24,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 04:34:24,997 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 93 [2020-08-22 04:34:24,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:34:25,000 INFO L225 Difference]: With dead ends: 463 [2020-08-22 04:34:25,000 INFO L226 Difference]: Without dead ends: 269 [2020-08-22 04:34:25,001 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-08-22 04:34:25,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2020-08-22 04:34:25,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 226. [2020-08-22 04:34:25,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-08-22 04:34:25,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 255 transitions. [2020-08-22 04:34:25,061 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 255 transitions. Word has length 93 [2020-08-22 04:34:25,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:34:25,061 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 255 transitions. [2020-08-22 04:34:25,061 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 04:34:25,062 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 255 transitions. [2020-08-22 04:34:25,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-08-22 04:34:25,063 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:34:25,063 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] [2020-08-22 04:34:25,063 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-22 04:34:25,064 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:34:25,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:34:25,064 INFO L82 PathProgramCache]: Analyzing trace with hash 1986636012, now seen corresponding path program 1 times [2020-08-22 04:34:25,064 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:34:25,064 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [65355394] [2020-08-22 04:34:25,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:34:25,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:25,373 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 04:34:25,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:25,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:25,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 04:34:25,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:25,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 04:34:25,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:25,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 04:34:25,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:25,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 04:34:25,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:25,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 04:34:25,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:25,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 04:34:25,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:25,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:25,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:25,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-22 04:34:25,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:25,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:25,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:25,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:25,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:25,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:25,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:25,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 04:34:25,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:25,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-22 04:34:25,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:25,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 04:34:25,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:25,566 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 04:34:25,567 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [65355394] [2020-08-22 04:34:25,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 04:34:25,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 04:34:25,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901136410] [2020-08-22 04:34:25,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 04:34:25,570 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:34:25,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 04:34:25,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-22 04:34:25,571 INFO L87 Difference]: Start difference. First operand 226 states and 255 transitions. Second operand 7 states. [2020-08-22 04:34:26,071 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 04:34:26,818 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 04:34:28,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:34:28,712 INFO L93 Difference]: Finished difference Result 645 states and 802 transitions. [2020-08-22 04:34:28,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-22 04:34:28,713 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 93 [2020-08-22 04:34:28,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:34:28,717 INFO L225 Difference]: With dead ends: 645 [2020-08-22 04:34:28,717 INFO L226 Difference]: Without dead ends: 447 [2020-08-22 04:34:28,718 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 37 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-08-22 04:34:28,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-08-22 04:34:28,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 405. [2020-08-22 04:34:28,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 405 states. [2020-08-22 04:34:28,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 471 transitions. [2020-08-22 04:34:28,781 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 471 transitions. Word has length 93 [2020-08-22 04:34:28,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:34:28,782 INFO L479 AbstractCegarLoop]: Abstraction has 405 states and 471 transitions. [2020-08-22 04:34:28,782 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 04:34:28,782 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 471 transitions. [2020-08-22 04:34:28,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-08-22 04:34:28,784 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:34:28,784 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] [2020-08-22 04:34:28,784 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-22 04:34:28,784 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:34:28,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:34:28,785 INFO L82 PathProgramCache]: Analyzing trace with hash -1429929390, now seen corresponding path program 1 times [2020-08-22 04:34:28,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:34:28,785 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2112700406] [2020-08-22 04:34:28,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:34:28,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:29,197 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 04:34:29,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:29,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:29,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 04:34:29,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:29,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 04:34:29,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:29,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 04:34:29,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:29,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 04:34:29,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:29,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 04:34:29,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:29,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 04:34:29,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:29,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-22 04:34:29,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:29,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:29,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:29,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-08-22 04:34:29,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:29,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:29,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:29,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:29,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:29,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:29,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:29,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 04:34:29,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:29,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-22 04:34:29,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:29,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-08-22 04:34:29,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:29,368 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 04:34:29,368 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2112700406] [2020-08-22 04:34:29,369 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 04:34:29,369 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-22 04:34:29,369 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840476994] [2020-08-22 04:34:29,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-22 04:34:29,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:34:29,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-22 04:34:29,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-08-22 04:34:29,371 INFO L87 Difference]: Start difference. First operand 405 states and 471 transitions. Second operand 12 states. [2020-08-22 04:34:29,834 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 04:34:30,488 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 04:34:31,459 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 04:34:31,752 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 04:34:32,009 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 04:34:32,288 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 04:34:32,563 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 04:34:33,689 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 04:34:33,964 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 04:34:34,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:34:34,616 INFO L93 Difference]: Finished difference Result 1123 states and 1390 transitions. [2020-08-22 04:34:34,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-08-22 04:34:34,617 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 97 [2020-08-22 04:34:34,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:34:34,629 INFO L225 Difference]: With dead ends: 1123 [2020-08-22 04:34:34,629 INFO L226 Difference]: Without dead ends: 820 [2020-08-22 04:34:34,631 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2020-08-22 04:34:34,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2020-08-22 04:34:34,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 698. [2020-08-22 04:34:34,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 698 states. [2020-08-22 04:34:34,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 804 transitions. [2020-08-22 04:34:34,779 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 804 transitions. Word has length 97 [2020-08-22 04:34:34,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:34:34,779 INFO L479 AbstractCegarLoop]: Abstraction has 698 states and 804 transitions. [2020-08-22 04:34:34,779 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-22 04:34:34,779 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 804 transitions. [2020-08-22 04:34:34,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-08-22 04:34:34,784 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:34:34,784 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 04:34:34,784 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-22 04:34:34,784 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:34:34,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:34:34,785 INFO L82 PathProgramCache]: Analyzing trace with hash 1557984819, now seen corresponding path program 1 times [2020-08-22 04:34:34,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:34:34,785 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1370167843] [2020-08-22 04:34:34,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:34:34,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:35,088 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 04:34:35,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:35,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:35,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 04:34:35,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:35,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 04:34:35,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:35,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 04:34:35,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:35,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 04:34:35,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:35,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 04:34:35,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:35,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 04:34:35,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:35,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-22 04:34:35,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:35,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:35,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:35,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:35,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:35,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:34:35,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:35,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:35,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:35,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:35,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:35,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:35,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:35,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 04:34:35,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:35,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 04:34:35,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:35,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:35,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:35,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-22 04:34:35,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:35,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:35,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:35,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-08-22 04:34:35,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:35,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-08-22 04:34:35,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:35,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:35,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:35,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:35,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:35,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 04:34:35,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:35,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:35,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:35,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-08-22 04:34:35,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:35,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-08-22 04:34:35,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:35,362 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 22 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-08-22 04:34:35,363 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1370167843] [2020-08-22 04:34:35,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 04:34:35,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-22 04:34:35,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820848091] [2020-08-22 04:34:35,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-22 04:34:35,364 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:34:35,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-22 04:34:35,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-08-22 04:34:35,365 INFO L87 Difference]: Start difference. First operand 698 states and 804 transitions. Second operand 16 states. [2020-08-22 04:34:36,337 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 04:34:36,673 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 04:34:36,966 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 04:34:37,222 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 04:34:37,875 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 04:34:38,143 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 04:34:38,870 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 04:34:39,223 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 04:34:40,079 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 04:34:40,357 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 04:34:40,645 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 04:34:40,955 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 04:34:41,497 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 04:34:41,905 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 04:34:42,247 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 04:34:42,811 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 04:34:43,074 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 04:34:43,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:34:43,572 INFO L93 Difference]: Finished difference Result 1539 states and 1827 transitions. [2020-08-22 04:34:43,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-08-22 04:34:43,573 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 157 [2020-08-22 04:34:43,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:34:43,580 INFO L225 Difference]: With dead ends: 1539 [2020-08-22 04:34:43,580 INFO L226 Difference]: Without dead ends: 939 [2020-08-22 04:34:43,584 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 618 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=568, Invalid=2084, Unknown=0, NotChecked=0, Total=2652 [2020-08-22 04:34:43,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2020-08-22 04:34:43,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 846. [2020-08-22 04:34:43,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 846 states. [2020-08-22 04:34:43,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 982 transitions. [2020-08-22 04:34:43,762 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 982 transitions. Word has length 157 [2020-08-22 04:34:43,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:34:43,763 INFO L479 AbstractCegarLoop]: Abstraction has 846 states and 982 transitions. [2020-08-22 04:34:43,763 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-22 04:34:43,763 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 982 transitions. [2020-08-22 04:34:43,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2020-08-22 04:34:43,770 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:34:43,770 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 04:34:43,770 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-22 04:34:43,771 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:34:43,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:34:43,771 INFO L82 PathProgramCache]: Analyzing trace with hash -2097362584, now seen corresponding path program 1 times [2020-08-22 04:34:43,771 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:34:43,772 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [365128308] [2020-08-22 04:34:43,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:34:43,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,064 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 04:34:44,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:44,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 04:34:44,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 04:34:44,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 04:34:44,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 04:34:44,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 04:34:44,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 04:34:44,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-22 04:34:44,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:44,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:44,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:34:44,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:44,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:44,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:44,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 04:34:44,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 04:34:44,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:44,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-08-22 04:34:44,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:44,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:44,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 04:34:44,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 04:34:44,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:44,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:44,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 04:34:44,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:44,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 04:34:44,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:44,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-08-22 04:34:44,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:44,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:44,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 04:34:44,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 04:34:44,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:44,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:44,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 04:34:44,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-22 04:34:44,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:44,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-08-22 04:34:44,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-08-22 04:34:44,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:44,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2020-08-22 04:34:44,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:44,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:44,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:44,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 04:34:44,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2020-08-22 04:34:44,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2020-08-22 04:34:44,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:44,562 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 84 proven. 29 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2020-08-22 04:34:44,563 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [365128308] [2020-08-22 04:34:44,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 04:34:44,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-08-22 04:34:44,564 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210327027] [2020-08-22 04:34:44,564 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-08-22 04:34:44,565 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:34:44,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-08-22 04:34:44,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2020-08-22 04:34:44,565 INFO L87 Difference]: Start difference. First operand 846 states and 982 transitions. Second operand 15 states. [2020-08-22 04:34:46,113 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 04:34:46,398 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 04:34:46,649 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 04:34:46,896 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 04:34:48,237 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 04:34:48,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:34:48,859 INFO L93 Difference]: Finished difference Result 2234 states and 2701 transitions. [2020-08-22 04:34:48,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-08-22 04:34:48,859 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 277 [2020-08-22 04:34:48,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:34:48,867 INFO L225 Difference]: With dead ends: 2234 [2020-08-22 04:34:48,868 INFO L226 Difference]: Without dead ends: 1321 [2020-08-22 04:34:48,871 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 98 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=230, Invalid=762, Unknown=0, NotChecked=0, Total=992 [2020-08-22 04:34:48,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1321 states. [2020-08-22 04:34:49,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1321 to 1119. [2020-08-22 04:34:49,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1119 states. [2020-08-22 04:34:49,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1119 states to 1119 states and 1329 transitions. [2020-08-22 04:34:49,065 INFO L78 Accepts]: Start accepts. Automaton has 1119 states and 1329 transitions. Word has length 277 [2020-08-22 04:34:49,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:34:49,066 INFO L479 AbstractCegarLoop]: Abstraction has 1119 states and 1329 transitions. [2020-08-22 04:34:49,066 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-08-22 04:34:49,066 INFO L276 IsEmpty]: Start isEmpty. Operand 1119 states and 1329 transitions. [2020-08-22 04:34:49,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2020-08-22 04:34:49,072 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:34:49,072 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 04:34:49,073 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-22 04:34:49,073 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:34:49,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:34:49,073 INFO L82 PathProgramCache]: Analyzing trace with hash -924921395, now seen corresponding path program 1 times [2020-08-22 04:34:49,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:34:49,074 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [482505857] [2020-08-22 04:34:49,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:34:49,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,359 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 04:34:49,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:49,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 04:34:49,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 04:34:49,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 04:34:49,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 04:34:49,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 04:34:49,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 04:34:49,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-22 04:34:49,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:49,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:49,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:34:49,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:49,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:49,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:49,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 04:34:49,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 04:34:49,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:49,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-08-22 04:34:49,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:49,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:49,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 04:34:49,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 04:34:49,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:49,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:49,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 04:34:49,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:49,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 04:34:49,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:49,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-22 04:34:49,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-08-22 04:34:49,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:49,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:49,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 04:34:49,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 04:34:49,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:49,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:49,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 04:34:49,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-22 04:34:49,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:49,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2020-08-22 04:34:49,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2020-08-22 04:34:49,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:49,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2020-08-22 04:34:49,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:49,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:49,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:49,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 04:34:49,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2020-08-22 04:34:49,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2020-08-22 04:34:49,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:49,720 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 91 proven. 36 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2020-08-22 04:34:49,721 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [482505857] [2020-08-22 04:34:49,721 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 04:34:49,721 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-22 04:34:49,721 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437810928] [2020-08-22 04:34:49,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-22 04:34:49,722 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:34:49,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-22 04:34:49,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2020-08-22 04:34:49,723 INFO L87 Difference]: Start difference. First operand 1119 states and 1329 transitions. Second operand 16 states. [2020-08-22 04:34:50,185 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 04:34:50,536 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 04:34:50,798 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 04:34:51,032 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 04:34:51,684 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 04:34:52,407 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 04:34:52,752 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 04:34:53,000 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 04:34:53,619 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 04:34:54,368 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 04:34:54,610 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 04:34:55,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:34:55,145 INFO L93 Difference]: Finished difference Result 2119 states and 2555 transitions. [2020-08-22 04:34:55,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-08-22 04:34:55,146 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 283 [2020-08-22 04:34:55,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:34:55,155 INFO L225 Difference]: With dead ends: 2119 [2020-08-22 04:34:55,155 INFO L226 Difference]: Without dead ends: 1121 [2020-08-22 04:34:55,159 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=297, Invalid=1185, Unknown=0, NotChecked=0, Total=1482 [2020-08-22 04:34:55,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1121 states. [2020-08-22 04:34:55,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1121 to 1071. [2020-08-22 04:34:55,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1071 states. [2020-08-22 04:34:55,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1255 transitions. [2020-08-22 04:34:55,453 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1255 transitions. Word has length 283 [2020-08-22 04:34:55,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:34:55,454 INFO L479 AbstractCegarLoop]: Abstraction has 1071 states and 1255 transitions. [2020-08-22 04:34:55,454 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-22 04:34:55,454 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1255 transitions. [2020-08-22 04:34:55,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2020-08-22 04:34:55,461 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:34:55,461 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 04:34:55,461 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-22 04:34:55,462 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:34:55,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:34:55,462 INFO L82 PathProgramCache]: Analyzing trace with hash -1544148796, now seen corresponding path program 1 times [2020-08-22 04:34:55,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:34:55,462 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [487902120] [2020-08-22 04:34:55,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:34:55,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,824 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 04:34:55,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:55,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 04:34:55,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 04:34:55,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 04:34:55,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 04:34:55,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 04:34:55,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 04:34:55,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-22 04:34:55,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:55,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:55,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:34:55,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:55,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:55,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:55,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 04:34:55,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 04:34:55,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:55,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-08-22 04:34:55,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:55,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:55,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 04:34:55,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 04:34:55,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:55,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:55,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 04:34:55,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:55,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 04:34:55,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:55,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-22 04:34:55,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-08-22 04:34:55,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:55,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:55,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 04:34:55,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:55,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 04:34:55,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:56,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:56,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:56,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:56,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:56,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 04:34:56,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:56,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-22 04:34:56,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:56,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:56,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:56,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-08-22 04:34:56,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:56,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:34:56,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:56,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2020-08-22 04:34:56,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:56,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:56,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:56,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 04:34:56,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:56,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:34:56,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:56,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 04:34:56,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:56,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2020-08-22 04:34:56,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:56,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2020-08-22 04:34:56,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:34:56,210 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 78 proven. 2 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2020-08-22 04:34:56,210 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [487902120] [2020-08-22 04:34:56,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 04:34:56,211 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-08-22 04:34:56,211 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82696897] [2020-08-22 04:34:56,213 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-08-22 04:34:56,213 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:34:56,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-08-22 04:34:56,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-08-22 04:34:56,214 INFO L87 Difference]: Start difference. First operand 1071 states and 1255 transitions. Second operand 14 states. [2020-08-22 04:34:56,891 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 04:34:57,688 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 04:35:00,029 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 04:35:00,304 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 04:35:00,572 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 04:35:00,830 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 04:35:01,137 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 192