/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=5 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product61.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 06:35:12,384 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 06:35:12,388 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 06:35:12,430 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 06:35:12,430 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 06:35:12,443 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 06:35:12,445 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 06:35:12,448 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 06:35:12,450 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 06:35:12,452 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 06:35:12,455 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 06:35:12,457 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 06:35:12,458 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 06:35:12,461 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 06:35:12,462 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 06:35:12,464 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 06:35:12,466 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 06:35:12,468 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 06:35:12,470 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 06:35:12,476 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 06:35:12,479 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 06:35:12,480 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 06:35:12,480 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 06:35:12,481 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 06:35:12,483 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 06:35:12,483 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 06:35:12,484 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 06:35:12,484 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 06:35:12,485 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 06:35:12,486 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 06:35:12,486 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 06:35:12,487 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 06:35:12,487 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 06:35:12,488 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 06:35:12,489 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 06:35:12,489 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 06:35:12,490 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 06:35:12,490 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 06:35:12,490 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 06:35:12,491 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 06:35:12,492 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 06:35:12,493 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 [2020-08-19 06:35:12,514 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 06:35:12,515 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 06:35:12,516 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 06:35:12,516 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 06:35:12,516 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 06:35:12,517 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 06:35:12,517 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 06:35:12,517 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 06:35:12,517 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 06:35:12,517 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 06:35:12,517 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 06:35:12,518 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 06:35:12,518 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 06:35:12,518 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 06:35:12,518 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 06:35:12,518 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 06:35:12,519 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 06:35:12,519 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 06:35:12,519 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 06:35:12,519 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 06:35:12,519 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 06:35:12,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 06:35:12,520 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 06:35:12,520 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 06:35:12,520 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 06:35:12,520 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 06:35:12,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 06:35:12,521 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 06:35:12,521 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 06:35:12,521 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=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5; [2020-08-19 06:35:12,817 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 06:35:12,838 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 06:35:12,844 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 06:35:12,845 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 06:35:12,847 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 06:35:12,847 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product61.cil.c [2020-08-19 06:35:12,926 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/caac0e8f6/43a70ae45680450ebec796fee8888fde/FLAG6910d2d46 [2020-08-19 06:35:13,437 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 06:35:13,437 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product61.cil.c [2020-08-19 06:35:13,450 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/caac0e8f6/43a70ae45680450ebec796fee8888fde/FLAG6910d2d46 [2020-08-19 06:35:13,749 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/caac0e8f6/43a70ae45680450ebec796fee8888fde [2020-08-19 06:35:13,758 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 06:35:13,759 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 06:35:13,760 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 06:35:13,761 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 06:35:13,764 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 06:35:13,765 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 06:35:13" (1/1) ... [2020-08-19 06:35:13,767 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56344ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:35:13, skipping insertion in model container [2020-08-19 06:35:13,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 06:35:13" (1/1) ... [2020-08-19 06:35:13,775 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 06:35:13,815 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 06:35:14,184 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 06:35:14,319 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 06:35:14,400 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 06:35:14,437 INFO L208 MainTranslator]: Completed translation [2020-08-19 06:35:14,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:35:14 WrapperNode [2020-08-19 06:35:14,437 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 06:35:14,438 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 06:35:14,438 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 06:35:14,439 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 06:35:14,452 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:35:14" (1/1) ... [2020-08-19 06:35:14,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:35:14" (1/1) ... [2020-08-19 06:35:14,473 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:35:14" (1/1) ... [2020-08-19 06:35:14,473 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:35:14" (1/1) ... [2020-08-19 06:35:14,511 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:35:14" (1/1) ... [2020-08-19 06:35:14,525 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:35:14" (1/1) ... [2020-08-19 06:35:14,531 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:35:14" (1/1) ... [2020-08-19 06:35:14,552 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 06:35:14,555 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 06:35:14,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 06:35:14,556 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 06:35:14,557 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:35:14" (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 [2020-08-19 06:35:14,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 06:35:14,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 06:35:14,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-19 06:35:14,639 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-19 06:35:14,639 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-19 06:35:14,640 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-19 06:35:14,640 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-19 06:35:14,641 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-19 06:35:14,641 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-19 06:35:14,642 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-19 06:35:14,642 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-19 06:35:14,642 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-19 06:35:14,642 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-19 06:35:14,643 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-19 06:35:14,643 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-19 06:35:14,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-19 06:35:14,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-08-19 06:35:14,644 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-19 06:35:14,644 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-19 06:35:14,644 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-19 06:35:14,644 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-19 06:35:14,645 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 06:35:14,645 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-19 06:35:14,645 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-19 06:35:14,645 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-08-19 06:35:14,646 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-08-19 06:35:14,646 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-19 06:35:14,646 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-08-19 06:35:14,647 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-19 06:35:14,647 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-19 06:35:14,647 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-19 06:35:14,647 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-19 06:35:14,647 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-19 06:35:14,647 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-19 06:35:14,648 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-19 06:35:14,648 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-19 06:35:14,648 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-19 06:35:14,648 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-19 06:35:14,648 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-19 06:35:14,648 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-19 06:35:14,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-19 06:35:14,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-19 06:35:14,649 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 06:35:14,649 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 06:35:14,649 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-19 06:35:14,650 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-19 06:35:14,650 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-19 06:35:14,650 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-19 06:35:14,650 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-19 06:35:14,650 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-19 06:35:14,650 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-19 06:35:14,651 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-19 06:35:14,651 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-19 06:35:14,651 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-19 06:35:14,652 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-19 06:35:14,652 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-19 06:35:14,652 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-19 06:35:14,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 06:35:14,653 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-19 06:35:14,653 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-19 06:35:14,653 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-08-19 06:35:14,653 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-19 06:35:14,653 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-19 06:35:14,653 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-19 06:35:14,654 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-19 06:35:14,654 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-19 06:35:14,654 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-19 06:35:14,654 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-19 06:35:14,654 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 06:35:14,654 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-19 06:35:14,654 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-19 06:35:14,655 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-19 06:35:14,655 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-19 06:35:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-19 06:35:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-08-19 06:35:14,656 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-19 06:35:14,657 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-08-19 06:35:14,658 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-19 06:35:14,658 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-08-19 06:35:14,658 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-19 06:35:14,658 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-19 06:35:14,658 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-19 06:35:14,659 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-19 06:35:14,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-19 06:35:14,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-19 06:35:14,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 06:35:14,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-19 06:35:14,660 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-19 06:35:14,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 06:35:14,660 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-19 06:35:14,660 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-19 06:35:14,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 06:35:14,661 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-19 06:35:14,661 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-19 06:35:14,661 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-19 06:35:14,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 06:35:14,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-19 06:35:14,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 06:35:15,924 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 06:35:15,925 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-19 06:35:15,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 06:35:15 BoogieIcfgContainer [2020-08-19 06:35:15,930 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 06:35:15,931 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 06:35:15,932 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 06:35:15,935 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 06:35:15,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 06:35:13" (1/3) ... [2020-08-19 06:35:15,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@710dab23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 06:35:15, skipping insertion in model container [2020-08-19 06:35:15,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:35:14" (2/3) ... [2020-08-19 06:35:15,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@710dab23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 06:35:15, skipping insertion in model container [2020-08-19 06:35:15,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 06:35:15" (3/3) ... [2020-08-19 06:35:15,939 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product61.cil.c [2020-08-19 06:35:15,949 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 06:35:15,957 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 06:35:15,971 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 06:35:15,997 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 06:35:15,997 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 06:35:15,997 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 06:35:15,998 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 06:35:15,998 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 06:35:15,998 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 06:35:15,998 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 06:35:15,998 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 06:35:16,021 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states. [2020-08-19 06:35:16,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-08-19 06:35:16,032 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:35:16,033 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 06:35:16,033 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:35:16,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:35:16,040 INFO L82 PathProgramCache]: Analyzing trace with hash 1301923028, now seen corresponding path program 1 times [2020-08-19 06:35:16,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:35:16,047 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2052778425] [2020-08-19 06:35:16,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:35:16,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:16,658 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 06:35:16,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:35:16,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:16,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:35:16,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:16,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 06:35:16,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:16,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:35:16,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:16,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 06:35:16,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:16,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 06:35:16,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:16,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 06:35:16,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:16,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 06:35:16,810 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2052778425] [2020-08-19 06:35:16,812 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 06:35:16,813 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-19 06:35:16,814 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508247584] [2020-08-19 06:35:16,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-19 06:35:16,819 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:35:16,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-19 06:35:16,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-19 06:35:16,837 INFO L87 Difference]: Start difference. First operand 193 states. Second operand 3 states. [2020-08-19 06:35:18,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:35:18,104 INFO L93 Difference]: Finished difference Result 345 states and 451 transitions. [2020-08-19 06:35:18,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-19 06:35:18,106 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-08-19 06:35:18,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:35:18,121 INFO L225 Difference]: With dead ends: 345 [2020-08-19 06:35:18,121 INFO L226 Difference]: Without dead ends: 186 [2020-08-19 06:35:18,126 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-19 06:35:18,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2020-08-19 06:35:18,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 150. [2020-08-19 06:35:18,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-08-19 06:35:18,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 179 transitions. [2020-08-19 06:35:18,253 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 179 transitions. Word has length 46 [2020-08-19 06:35:18,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:35:18,253 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 179 transitions. [2020-08-19 06:35:18,254 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-19 06:35:18,254 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 179 transitions. [2020-08-19 06:35:18,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-08-19 06:35:18,257 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:35:18,257 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 06:35:18,258 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 06:35:18,258 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:35:18,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:35:18,259 INFO L82 PathProgramCache]: Analyzing trace with hash -216566915, now seen corresponding path program 1 times [2020-08-19 06:35:18,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:35:18,259 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1202734486] [2020-08-19 06:35:18,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:35:18,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:18,592 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 06:35:18,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:35:18,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:18,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:35:18,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:18,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 06:35:18,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:18,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:35:18,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:18,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 06:35:18,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:18,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-19 06:35:18,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:18,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-19 06:35:18,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:18,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 06:35:18,678 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1202734486] [2020-08-19 06:35:18,678 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 06:35:18,678 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-19 06:35:18,679 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618793864] [2020-08-19 06:35:18,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-19 06:35:18,681 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:35:18,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-19 06:35:18,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-19 06:35:18,681 INFO L87 Difference]: Start difference. First operand 150 states and 179 transitions. Second operand 4 states. [2020-08-19 06:35:19,153 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 06:35:20,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:35:20,152 INFO L93 Difference]: Finished difference Result 278 states and 342 transitions. [2020-08-19 06:35:20,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-19 06:35:20,153 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-08-19 06:35:20,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:35:20,156 INFO L225 Difference]: With dead ends: 278 [2020-08-19 06:35:20,156 INFO L226 Difference]: Without dead ends: 170 [2020-08-19 06:35:20,158 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-19 06:35:20,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-08-19 06:35:20,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 141. [2020-08-19 06:35:20,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-08-19 06:35:20,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 167 transitions. [2020-08-19 06:35:20,200 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 167 transitions. Word has length 47 [2020-08-19 06:35:20,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:35:20,200 INFO L479 AbstractCegarLoop]: Abstraction has 141 states and 167 transitions. [2020-08-19 06:35:20,200 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-19 06:35:20,200 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 167 transitions. [2020-08-19 06:35:20,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-08-19 06:35:20,203 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:35:20,203 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 06:35:20,203 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 06:35:20,203 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:35:20,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:35:20,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1163721234, now seen corresponding path program 1 times [2020-08-19 06:35:20,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:35:20,204 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [841781121] [2020-08-19 06:35:20,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:35:20,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:20,497 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 06:35:20,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:35:20,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:20,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:35:20,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:20,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 06:35:20,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:20,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:35:20,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:20,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 06:35:20,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:20,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 06:35:20,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:20,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-19 06:35:20,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:20,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 06:35:20,600 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [841781121] [2020-08-19 06:35:20,600 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 06:35:20,600 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-19 06:35:20,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043992182] [2020-08-19 06:35:20,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-19 06:35:20,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:35:20,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-19 06:35:20,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-19 06:35:20,602 INFO L87 Difference]: Start difference. First operand 141 states and 167 transitions. Second operand 8 states. [2020-08-19 06:35:21,070 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 06:35:21,360 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 06:35:21,618 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 06:35:21,862 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 06:35:23,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:35:23,208 INFO L93 Difference]: Finished difference Result 287 states and 356 transitions. [2020-08-19 06:35:23,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-19 06:35:23,214 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-08-19 06:35:23,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:35:23,217 INFO L225 Difference]: With dead ends: 287 [2020-08-19 06:35:23,217 INFO L226 Difference]: Without dead ends: 170 [2020-08-19 06:35:23,218 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-19 06:35:23,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-08-19 06:35:23,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 141. [2020-08-19 06:35:23,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-08-19 06:35:23,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 166 transitions. [2020-08-19 06:35:23,259 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 166 transitions. Word has length 51 [2020-08-19 06:35:23,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:35:23,259 INFO L479 AbstractCegarLoop]: Abstraction has 141 states and 166 transitions. [2020-08-19 06:35:23,259 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-19 06:35:23,259 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 166 transitions. [2020-08-19 06:35:23,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-08-19 06:35:23,262 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:35:23,262 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 06:35:23,263 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 06:35:23,263 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:35:23,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:35:23,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1315506319, now seen corresponding path program 1 times [2020-08-19 06:35:23,264 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:35:23,264 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1468090036] [2020-08-19 06:35:23,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:35:23,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:23,557 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 06:35:23,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:35:23,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:23,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:35:23,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:23,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 06:35:23,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:23,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:35:23,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:23,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 06:35:23,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:23,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-08-19 06:35:23,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:23,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:35:23,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:23,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:35:23,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:23,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:35:23,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:23,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-19 06:35:23,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:23,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-19 06:35:23,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:23,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 06:35:23,641 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1468090036] [2020-08-19 06:35:23,641 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 06:35:23,641 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-19 06:35:23,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732798858] [2020-08-19 06:35:23,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 06:35:23,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:35:23,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 06:35:23,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-19 06:35:23,643 INFO L87 Difference]: Start difference. First operand 141 states and 166 transitions. Second operand 6 states. [2020-08-19 06:35:23,971 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 06:35:25,085 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 06:35:25,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:35:25,832 INFO L93 Difference]: Finished difference Result 390 states and 484 transitions. [2020-08-19 06:35:25,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-19 06:35:25,833 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 69 [2020-08-19 06:35:25,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:35:25,838 INFO L225 Difference]: With dead ends: 390 [2020-08-19 06:35:25,838 INFO L226 Difference]: Without dead ends: 273 [2020-08-19 06:35:25,839 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-08-19 06:35:25,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2020-08-19 06:35:25,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 232. [2020-08-19 06:35:25,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-08-19 06:35:25,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 264 transitions. [2020-08-19 06:35:25,892 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 264 transitions. Word has length 69 [2020-08-19 06:35:25,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:35:25,893 INFO L479 AbstractCegarLoop]: Abstraction has 232 states and 264 transitions. [2020-08-19 06:35:25,893 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 06:35:25,893 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 264 transitions. [2020-08-19 06:35:25,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-08-19 06:35:25,898 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:35:25,898 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 06:35:25,898 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 06:35:25,898 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:35:25,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:35:25,899 INFO L82 PathProgramCache]: Analyzing trace with hash -921409892, now seen corresponding path program 1 times [2020-08-19 06:35:25,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:35:25,899 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2117277940] [2020-08-19 06:35:25,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:35:25,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:26,179 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 06:35:26,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:35:26,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:26,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:35:26,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:26,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 06:35:26,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:26,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:35:26,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:26,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 06:35:26,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:26,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-08-19 06:35:26,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:26,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:35:26,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:26,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:35:26,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:26,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:35:26,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:26,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:35:26,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:26,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 06:35:26,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:26,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-08-19 06:35:26,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:26,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-08-19 06:35:26,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:26,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 06:35:26,296 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2117277940] [2020-08-19 06:35:26,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 06:35:26,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-19 06:35:26,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474797892] [2020-08-19 06:35:26,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-19 06:35:26,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:35:26,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-19 06:35:26,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-19 06:35:26,298 INFO L87 Difference]: Start difference. First operand 232 states and 264 transitions. Second operand 8 states. [2020-08-19 06:35:26,805 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 06:35:27,769 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 06:35:28,135 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 06:35:28,734 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 06:35:28,954 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 06:35:29,205 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 06:35:30,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:35:30,337 INFO L93 Difference]: Finished difference Result 691 states and 842 transitions. [2020-08-19 06:35:30,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-19 06:35:30,338 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 83 [2020-08-19 06:35:30,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:35:30,342 INFO L225 Difference]: With dead ends: 691 [2020-08-19 06:35:30,342 INFO L226 Difference]: Without dead ends: 483 [2020-08-19 06:35:30,343 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-08-19 06:35:30,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-08-19 06:35:30,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 419. [2020-08-19 06:35:30,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2020-08-19 06:35:30,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 478 transitions. [2020-08-19 06:35:30,425 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 478 transitions. Word has length 83 [2020-08-19 06:35:30,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:35:30,426 INFO L479 AbstractCegarLoop]: Abstraction has 419 states and 478 transitions. [2020-08-19 06:35:30,426 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-19 06:35:30,426 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 478 transitions. [2020-08-19 06:35:30,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-08-19 06:35:30,428 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:35:30,428 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 06:35:30,428 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-19 06:35:30,428 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:35:30,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:35:30,429 INFO L82 PathProgramCache]: Analyzing trace with hash 592685792, now seen corresponding path program 1 times [2020-08-19 06:35:30,429 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:35:30,429 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1857046414] [2020-08-19 06:35:30,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:35:30,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:30,741 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 06:35:30,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:35:30,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:30,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:35:30,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:30,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 06:35:30,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:30,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:35:30,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:30,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 06:35:30,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:30,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-19 06:35:30,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:30,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-19 06:35:30,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:30,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:35:30,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:30,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:35:30,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:30,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:35:30,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:30,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:35:30,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:30,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 06:35:30,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:30,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-19 06:35:30,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:30,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-08-19 06:35:30,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:30,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 06:35:30,843 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1857046414] [2020-08-19 06:35:30,844 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 06:35:30,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 06:35:30,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671775900] [2020-08-19 06:35:30,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 06:35:30,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:35:30,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 06:35:30,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-19 06:35:30,845 INFO L87 Difference]: Start difference. First operand 419 states and 478 transitions. Second operand 9 states. [2020-08-19 06:35:31,341 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 06:35:32,505 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 06:35:32,774 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 06:35:33,791 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 06:35:34,081 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 06:35:34,313 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 06:35:34,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:35:34,622 INFO L93 Difference]: Finished difference Result 522 states and 646 transitions. [2020-08-19 06:35:34,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-19 06:35:34,622 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 87 [2020-08-19 06:35:34,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:35:34,627 INFO L225 Difference]: With dead ends: 522 [2020-08-19 06:35:34,627 INFO L226 Difference]: Without dead ends: 519 [2020-08-19 06:35:34,628 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-08-19 06:35:34,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2020-08-19 06:35:34,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 419. [2020-08-19 06:35:34,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2020-08-19 06:35:34,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 477 transitions. [2020-08-19 06:35:34,712 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 477 transitions. Word has length 87 [2020-08-19 06:35:34,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:35:34,713 INFO L479 AbstractCegarLoop]: Abstraction has 419 states and 477 transitions. [2020-08-19 06:35:34,713 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 06:35:34,713 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 477 transitions. [2020-08-19 06:35:34,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-08-19 06:35:34,715 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:35:34,716 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 06:35:34,716 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-19 06:35:34,716 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:35:34,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:35:34,717 INFO L82 PathProgramCache]: Analyzing trace with hash -88143431, now seen corresponding path program 1 times [2020-08-19 06:35:34,717 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:35:34,717 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1554771081] [2020-08-19 06:35:34,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:35:34,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:34,964 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 06:35:34,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:35:34,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:35,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:35:35,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:35,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 06:35:35,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:35,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:35:35,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:35,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 06:35:35,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:35,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-19 06:35:35,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:35,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-19 06:35:35,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:35,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:35:35,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:35,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:35:35,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:35,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:35:35,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:35,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:35:35,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:35,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 06:35:35,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:35,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:35:35,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:35,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:35:35,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:35,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:35:35,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:35,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-19 06:35:35,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:35,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-08-19 06:35:35,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:35,117 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 06:35:35,117 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1554771081] [2020-08-19 06:35:35,118 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 06:35:35,118 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 06:35:35,118 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559347185] [2020-08-19 06:35:35,118 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 06:35:35,119 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:35:35,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 06:35:35,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-19 06:35:35,119 INFO L87 Difference]: Start difference. First operand 419 states and 477 transitions. Second operand 9 states. [2020-08-19 06:35:36,006 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 06:35:36,255 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 06:35:36,504 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 06:35:36,745 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 06:35:37,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:35:37,960 INFO L93 Difference]: Finished difference Result 922 states and 1136 transitions. [2020-08-19 06:35:37,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-19 06:35:37,961 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 103 [2020-08-19 06:35:37,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:35:37,965 INFO L225 Difference]: With dead ends: 922 [2020-08-19 06:35:37,965 INFO L226 Difference]: Without dead ends: 527 [2020-08-19 06:35:37,967 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-08-19 06:35:37,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2020-08-19 06:35:38,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 429. [2020-08-19 06:35:38,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2020-08-19 06:35:38,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 487 transitions. [2020-08-19 06:35:38,062 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 487 transitions. Word has length 103 [2020-08-19 06:35:38,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:35:38,063 INFO L479 AbstractCegarLoop]: Abstraction has 429 states and 487 transitions. [2020-08-19 06:35:38,063 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 06:35:38,063 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 487 transitions. [2020-08-19 06:35:38,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-08-19 06:35:38,067 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:35:38,067 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 06:35:38,067 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-19 06:35:38,068 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:35:38,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:35:38,068 INFO L82 PathProgramCache]: Analyzing trace with hash -441231813, now seen corresponding path program 1 times [2020-08-19 06:35:38,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:35:38,069 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [274122818] [2020-08-19 06:35:38,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:35:38,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:38,405 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 06:35:38,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:35:38,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:38,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:35:38,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:38,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 06:35:38,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:38,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:35:38,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:38,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 06:35:38,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:38,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-19 06:35:38,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:38,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-19 06:35:38,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:38,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:35:38,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:38,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:35:38,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:38,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:35:38,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:38,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:35:38,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:38,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 06:35:38,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:38,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:35:38,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:38,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:35:38,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:38,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:35:38,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:38,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-19 06:35:38,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:38,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-08-19 06:35:38,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:38,649 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 06:35:38,650 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [274122818] [2020-08-19 06:35:38,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 06:35:38,652 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-19 06:35:38,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878560306] [2020-08-19 06:35:38,654 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-19 06:35:38,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:35:38,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-19 06:35:38,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-08-19 06:35:38,655 INFO L87 Difference]: Start difference. First operand 429 states and 487 transitions. Second operand 11 states. [2020-08-19 06:35:39,784 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 06:35:40,035 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 06:35:40,270 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 06:35:40,878 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 06:35:41,148 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 06:35:41,400 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 06:35:42,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:35:42,792 INFO L93 Difference]: Finished difference Result 942 states and 1158 transitions. [2020-08-19 06:35:42,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-19 06:35:42,792 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 103 [2020-08-19 06:35:42,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:35:42,796 INFO L225 Difference]: With dead ends: 942 [2020-08-19 06:35:42,796 INFO L226 Difference]: Without dead ends: 537 [2020-08-19 06:35:42,798 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-08-19 06:35:42,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2020-08-19 06:35:42,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 437. [2020-08-19 06:35:42,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2020-08-19 06:35:42,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 495 transitions. [2020-08-19 06:35:42,876 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 495 transitions. Word has length 103 [2020-08-19 06:35:42,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:35:42,876 INFO L479 AbstractCegarLoop]: Abstraction has 437 states and 495 transitions. [2020-08-19 06:35:42,876 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-19 06:35:42,876 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 495 transitions. [2020-08-19 06:35:42,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-08-19 06:35:42,878 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:35:42,878 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 06:35:42,879 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-19 06:35:42,879 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:35:42,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:35:42,879 INFO L82 PathProgramCache]: Analyzing trace with hash 691958780, now seen corresponding path program 1 times [2020-08-19 06:35:42,879 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:35:42,880 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [162063888] [2020-08-19 06:35:42,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:35:42,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:43,125 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 06:35:43,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:35:43,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:43,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:35:43,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:43,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 06:35:43,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:43,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:35:43,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:43,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 06:35:43,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:43,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-19 06:35:43,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:43,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-19 06:35:43,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:43,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:35:43,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:43,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:35:43,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:43,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:35:43,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:43,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:35:43,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:43,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 06:35:43,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:43,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:35:43,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:43,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:35:43,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:43,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:35:43,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:43,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-19 06:35:43,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:43,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-08-19 06:35:43,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:43,396 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 06:35:43,397 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [162063888] [2020-08-19 06:35:43,397 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 06:35:43,397 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-19 06:35:43,398 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440394763] [2020-08-19 06:35:43,398 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-19 06:35:43,399 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:35:43,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-19 06:35:43,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-19 06:35:43,400 INFO L87 Difference]: Start difference. First operand 437 states and 495 transitions. Second operand 7 states. [2020-08-19 06:35:43,985 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 06:35:44,631 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 06:35:46,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:35:46,901 INFO L93 Difference]: Finished difference Result 1265 states and 1606 transitions. [2020-08-19 06:35:46,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-19 06:35:46,902 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 103 [2020-08-19 06:35:46,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:35:46,909 INFO L225 Difference]: With dead ends: 1265 [2020-08-19 06:35:46,909 INFO L226 Difference]: Without dead ends: 852 [2020-08-19 06:35:46,911 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 41 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-08-19 06:35:46,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2020-08-19 06:35:47,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 753. [2020-08-19 06:35:47,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 753 states. [2020-08-19 06:35:47,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 889 transitions. [2020-08-19 06:35:47,070 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 889 transitions. Word has length 103 [2020-08-19 06:35:47,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:35:47,072 INFO L479 AbstractCegarLoop]: Abstraction has 753 states and 889 transitions. [2020-08-19 06:35:47,072 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-19 06:35:47,072 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 889 transitions. [2020-08-19 06:35:47,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-08-19 06:35:47,074 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:35:47,074 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 06:35:47,075 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-19 06:35:47,075 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:35:47,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:35:47,075 INFO L82 PathProgramCache]: Analyzing trace with hash -867723262, now seen corresponding path program 1 times [2020-08-19 06:35:47,076 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:35:47,076 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2065810182] [2020-08-19 06:35:47,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:35:47,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:47,364 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 06:35:47,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:35:47,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:47,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:35:47,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:47,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 06:35:47,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:47,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:35:47,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:47,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 06:35:47,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:47,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-19 06:35:47,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:47,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-19 06:35:47,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:47,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-19 06:35:47,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:47,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:35:47,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:47,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:35:47,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:47,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:35:47,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:47,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:35:47,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:47,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 06:35:47,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:47,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:35:47,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:47,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:35:47,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:47,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:35:47,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:47,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-08-19 06:35:47,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:47,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-19 06:35:47,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:47,837 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-19 06:35:47,837 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2065810182] [2020-08-19 06:35:47,838 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 06:35:47,838 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-08-19 06:35:47,838 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112340680] [2020-08-19 06:35:47,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-08-19 06:35:47,839 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:35:47,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-08-19 06:35:47,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2020-08-19 06:35:47,840 INFO L87 Difference]: Start difference. First operand 753 states and 889 transitions. Second operand 17 states. [2020-08-19 06:35:48,476 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 06:35:48,804 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 06:35:49,065 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 06:35:49,306 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 06:35:49,883 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 06:35:50,880 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 06:35:51,229 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 06:35:51,507 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 06:35:51,787 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 06:35:52,146 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 06:35:52,423 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 06:35:52,946 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 188 [2020-08-19 06:35:53,516 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 188 [2020-08-19 06:35:55,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:35:55,988 INFO L93 Difference]: Finished difference Result 1548 states and 1897 transitions. [2020-08-19 06:35:55,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-08-19 06:35:55,988 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 107 [2020-08-19 06:35:55,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:35:55,994 INFO L225 Difference]: With dead ends: 1548 [2020-08-19 06:35:55,994 INFO L226 Difference]: Without dead ends: 819 [2020-08-19 06:35:55,997 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 43 SyntacticMatches, 3 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=304, Invalid=1256, Unknown=0, NotChecked=0, Total=1560 [2020-08-19 06:35:55,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2020-08-19 06:35:56,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 723. [2020-08-19 06:35:56,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 723 states. [2020-08-19 06:35:56,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 840 transitions. [2020-08-19 06:35:56,125 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 840 transitions. Word has length 107 [2020-08-19 06:35:56,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:35:56,125 INFO L479 AbstractCegarLoop]: Abstraction has 723 states and 840 transitions. [2020-08-19 06:35:56,125 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-08-19 06:35:56,125 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 840 transitions. [2020-08-19 06:35:56,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-08-19 06:35:56,128 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:35:56,129 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 06:35:56,129 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-19 06:35:56,130 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:35:56,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:35:56,130 INFO L82 PathProgramCache]: Analyzing trace with hash -1713415852, now seen corresponding path program 1 times [2020-08-19 06:35:56,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:35:56,131 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1637536411] [2020-08-19 06:35:56,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:35:56,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:56,466 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 06:35:56,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:35:56,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:56,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:35:56,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:56,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 06:35:56,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:56,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:35:56,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:56,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 06:35:56,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:56,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-19 06:35:56,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:56,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-19 06:35:56,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:56,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:35:56,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:56,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:35:56,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:56,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:35:56,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:56,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:35:56,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:56,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:35:56,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:56,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 06:35:56,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:56,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:35:56,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:56,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:35:56,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:56,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:35:56,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:56,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-19 06:35:56,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:56,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:35:56,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:56,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-19 06:35:56,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:56,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-08-19 06:35:56,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:56,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-19 06:35:56,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:56,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:35:56,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:56,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:35:56,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:56,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 06:35:56,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:56,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:35:56,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:56,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:35:56,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:56,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 06:35:56,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:56,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:35:56,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:56,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-08-19 06:35:56,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:56,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-08-19 06:35:56,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:35:56,810 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-08-19 06:35:56,811 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1637536411] [2020-08-19 06:35:56,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 06:35:56,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-08-19 06:35:56,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500448143] [2020-08-19 06:35:56,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-08-19 06:35:56,812 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:35:56,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-08-19 06:35:56,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2020-08-19 06:35:56,813 INFO L87 Difference]: Start difference. First operand 723 states and 840 transitions. Second operand 18 states. [2020-08-19 06:35:57,361 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 06:35:57,698 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 06:35:57,949 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 06:35:58,195 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 06:35:58,809 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 06:35:59,780 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 06:36:00,092 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 06:36:00,354 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 06:36:00,609 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 06:36:00,934 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 06:36:01,201 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 06:36:02,329 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 06:36:02,584 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 06:36:02,870 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 06:36:03,145 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 06:36:04,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:36:04,147 INFO L93 Difference]: Finished difference Result 1309 states and 1611 transitions. [2020-08-19 06:36:04,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-08-19 06:36:04,153 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 176 [2020-08-19 06:36:04,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:36:04,154 INFO L225 Difference]: With dead ends: 1309 [2020-08-19 06:36:04,154 INFO L226 Difference]: Without dead ends: 0 [2020-08-19 06:36:04,160 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=347, Invalid=1633, Unknown=0, NotChecked=0, Total=1980 [2020-08-19 06:36:04,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-19 06:36:04,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-19 06:36:04,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-19 06:36:04,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-19 06:36:04,161 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 176 [2020-08-19 06:36:04,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:36:04,161 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-19 06:36:04,161 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-08-19 06:36:04,162 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-19 06:36:04,162 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-19 06:36:04,162 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-19 06:36:04,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-19 06:36:04,856 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 198 [2020-08-19 06:36:05,234 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 198 [2020-08-19 06:36:06,547 WARN L193 SmtUtils]: Spent 845.00 ms on a formula simplification. DAG size of input: 294 DAG size of output: 240 [2020-08-19 06:36:08,336 WARN L193 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 294 DAG size of output: 240 [2020-08-19 06:36:09,541 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 296 DAG size of output: 243 [2020-08-19 06:36:10,029 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 294 DAG size of output: 240 [2020-08-19 06:36:11,165 WARN L193 SmtUtils]: Spent 812.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 16 [2020-08-19 06:36:11,332 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 1 [2020-08-19 06:36:11,506 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 22 [2020-08-19 06:36:11,709 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 19 [2020-08-19 06:36:11,876 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 1 [2020-08-19 06:36:12,096 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 22