/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product47.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-22 06:02:51,395 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 06:02:51,397 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 06:02:51,421 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 06:02:51,423 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 06:02:51,431 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 06:02:51,433 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 06:02:51,435 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 06:02:51,437 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 06:02:51,438 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 06:02:51,439 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 06:02:51,441 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 06:02:51,441 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 06:02:51,442 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 06:02:51,445 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 06:02:51,447 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 06:02:51,448 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 06:02:51,450 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 06:02:51,452 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 06:02:51,457 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 06:02:51,459 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 06:02:51,460 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 06:02:51,462 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 06:02:51,463 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 06:02:51,473 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 06:02:51,473 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 06:02:51,473 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 06:02:51,475 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 06:02:51,476 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 06:02:51,477 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 06:02:51,479 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 06:02:51,479 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 06:02:51,480 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 06:02:51,481 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 06:02:51,482 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 06:02:51,482 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 06:02:51,483 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 06:02:51,483 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 06:02:51,483 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 06:02:51,484 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 06:02:51,486 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 06:02:51,487 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-22 06:02:51,528 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 06:02:51,529 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 06:02:51,530 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 06:02:51,530 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 06:02:51,530 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 06:02:51,531 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 06:02:51,531 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 06:02:51,531 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 06:02:51,531 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 06:02:51,531 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 06:02:51,532 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 06:02:51,532 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 06:02:51,532 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 06:02:51,532 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 06:02:51,532 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 06:02:51,532 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 06:02:51,533 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 06:02:51,533 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 06:02:51,533 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 06:02:51,533 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 06:02:51,533 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 06:02:51,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 06:02:51,534 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 06:02:51,534 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 06:02:51,534 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 06:02:51,535 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 06:02:51,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 06:02:51,535 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 06:02:51,535 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 06:02:51,535 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-08-22 06:02:51,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 06:02:51,855 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 06:02:51,860 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 06:02:51,861 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 06:02:51,864 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 06:02:51,864 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product47.cil.c [2020-08-22 06:02:51,923 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c09e7bc52/029417f17cbe4865a3e9f22df726ceb7/FLAG92a6c5691 [2020-08-22 06:02:52,391 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 06:02:52,392 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product47.cil.c [2020-08-22 06:02:52,406 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c09e7bc52/029417f17cbe4865a3e9f22df726ceb7/FLAG92a6c5691 [2020-08-22 06:02:52,690 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c09e7bc52/029417f17cbe4865a3e9f22df726ceb7 [2020-08-22 06:02:52,700 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 06:02:52,702 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 06:02:52,703 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 06:02:52,703 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 06:02:52,706 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 06:02:52,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:02:52" (1/1) ... [2020-08-22 06:02:52,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@110f8717 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:02:52, skipping insertion in model container [2020-08-22 06:02:52,710 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:02:52" (1/1) ... [2020-08-22 06:02:52,718 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 06:02:52,779 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 06:02:53,192 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 06:02:53,206 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 06:02:53,372 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 06:02:53,415 INFO L208 MainTranslator]: Completed translation [2020-08-22 06:02:53,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:02:53 WrapperNode [2020-08-22 06:02:53,416 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 06:02:53,417 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 06:02:53,417 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 06:02:53,417 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 06:02:53,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:02:53" (1/1) ... [2020-08-22 06:02:53,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:02:53" (1/1) ... [2020-08-22 06:02:53,445 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:02:53" (1/1) ... [2020-08-22 06:02:53,446 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:02:53" (1/1) ... [2020-08-22 06:02:53,478 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:02:53" (1/1) ... [2020-08-22 06:02:53,488 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:02:53" (1/1) ... [2020-08-22 06:02:53,493 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:02:53" (1/1) ... [2020-08-22 06:02:53,500 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 06:02:53,501 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 06:02:53,501 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 06:02:53,501 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 06:02:53,502 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:02:53" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 06:02:53,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 06:02:53,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 06:02:53,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 06:02:53,564 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-08-22 06:02:53,564 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 06:02:53,564 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 06:02:53,565 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 06:02:53,565 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 06:02:53,565 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 06:02:53,565 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 06:02:53,565 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 06:02:53,565 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 06:02:53,566 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 06:02:53,566 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 06:02:53,566 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 06:02:53,566 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-22 06:02:53,566 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 06:02:53,566 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-22 06:02:53,567 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-08-22 06:02:53,567 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 06:02:53,567 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-08-22 06:02:53,567 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 06:02:53,567 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 06:02:53,567 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 06:02:53,568 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 06:02:53,568 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 06:02:53,568 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-22 06:02:53,568 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-22 06:02:53,568 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 06:02:53,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 06:02:53,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 06:02:53,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 06:02:53,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 06:02:53,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 06:02:53,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 06:02:53,569 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 06:02:53,569 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 06:02:53,570 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 06:02:53,570 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 06:02:53,570 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 06:02:53,570 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 06:02:53,570 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 06:02:53,570 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 06:02:53,571 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 06:02:53,571 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 06:02:53,571 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 06:02:53,571 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-08-22 06:02:53,571 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 06:02:53,571 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 06:02:53,572 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 06:02:53,572 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 06:02:53,572 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 06:02:53,572 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 06:02:53,572 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 06:02:53,572 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 06:02:53,573 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 06:02:53,573 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-22 06:02:53,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 06:02:53,573 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 06:02:53,573 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 06:02:53,573 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 06:02:53,573 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 06:02:53,574 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-22 06:02:53,574 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 06:02:53,574 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-22 06:02:53,574 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-22 06:02:53,574 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-08-22 06:02:53,574 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 06:02:53,574 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-08-22 06:02:53,575 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 06:02:53,575 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 06:02:53,575 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 06:02:53,575 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 06:02:53,575 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 06:02:53,575 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 06:02:53,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 06:02:53,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 06:02:53,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 06:02:53,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 06:02:53,576 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 06:02:53,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 06:02:53,577 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 06:02:53,577 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 06:02:53,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 06:02:53,577 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 06:02:53,577 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 06:02:53,577 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 06:02:53,577 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 06:02:53,578 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 06:02:53,578 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 06:02:53,578 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 06:02:53,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 06:02:53,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 06:02:53,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 06:02:54,503 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 06:02:54,503 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 06:02:54,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:02:54 BoogieIcfgContainer [2020-08-22 06:02:54,508 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 06:02:54,510 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 06:02:54,510 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 06:02:54,513 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 06:02:54,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 06:02:52" (1/3) ... [2020-08-22 06:02:54,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e59dabf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:02:54, skipping insertion in model container [2020-08-22 06:02:54,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:02:53" (2/3) ... [2020-08-22 06:02:54,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e59dabf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:02:54, skipping insertion in model container [2020-08-22 06:02:54,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:02:54" (3/3) ... [2020-08-22 06:02:54,516 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product47.cil.c [2020-08-22 06:02:54,526 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 06:02:54,534 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 06:02:54,548 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 06:02:54,573 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 06:02:54,574 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 06:02:54,574 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 06:02:54,574 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 06:02:54,574 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 06:02:54,575 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 06:02:54,575 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 06:02:54,575 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 06:02:54,596 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states. [2020-08-22 06:02:54,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-08-22 06:02:54,606 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:02:54,607 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] [2020-08-22 06:02:54,607 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:02:54,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:02:54,613 INFO L82 PathProgramCache]: Analyzing trace with hash -1070296044, now seen corresponding path program 1 times [2020-08-22 06:02:54,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:02:54,622 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [630635373] [2020-08-22 06:02:54,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:02:54,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:02:55,227 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 06:02:55,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:02:55,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:02:55,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:02:55,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:02:55,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:02:55,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:02:55,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:02:55,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:02:55,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:02:55,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:02:55,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 06:02:55,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:02:55,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 06:02:55,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:02:55,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 06:02:55,350 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [630635373] [2020-08-22 06:02:55,351 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:02:55,352 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 06:02:55,353 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93832793] [2020-08-22 06:02:55,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 06:02:55,359 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:02:55,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 06:02:55,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 06:02:55,376 INFO L87 Difference]: Start difference. First operand 179 states. Second operand 3 states. [2020-08-22 06:02:56,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:02:56,491 INFO L93 Difference]: Finished difference Result 317 states and 417 transitions. [2020-08-22 06:02:56,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 06:02:56,494 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-08-22 06:02:56,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:02:56,509 INFO L225 Difference]: With dead ends: 317 [2020-08-22 06:02:56,509 INFO L226 Difference]: Without dead ends: 172 [2020-08-22 06:02:56,514 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 [2020-08-22 06:02:56,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-08-22 06:02:56,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 136. [2020-08-22 06:02:56,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-08-22 06:02:56,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 162 transitions. [2020-08-22 06:02:56,642 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 162 transitions. Word has length 46 [2020-08-22 06:02:56,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:02:56,643 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 162 transitions. [2020-08-22 06:02:56,643 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 06:02:56,643 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 162 transitions. [2020-08-22 06:02:56,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-08-22 06:02:56,647 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:02:56,647 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] [2020-08-22 06:02:56,647 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 06:02:56,648 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:02:56,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:02:56,648 INFO L82 PathProgramCache]: Analyzing trace with hash 689119196, now seen corresponding path program 1 times [2020-08-22 06:02:56,648 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:02:56,649 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [363140566] [2020-08-22 06:02:56,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:02:56,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:02:56,950 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 06:02:56,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:02:56,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:02:56,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:02:56,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:02:56,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:02:56,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:02:56,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:02:56,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:02:56,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:02:56,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:02:56,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 06:02:56,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:02:56,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-22 06:02:56,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:02:56,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 06:02:56,989 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [363140566] [2020-08-22 06:02:56,989 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:02:56,989 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 06:02:56,990 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634039610] [2020-08-22 06:02:56,991 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 06:02:56,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:02:56,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 06:02:56,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 06:02:56,992 INFO L87 Difference]: Start difference. First operand 136 states and 162 transitions. Second operand 4 states. [2020-08-22 06:02:57,367 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:02:58,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:02:58,257 INFO L93 Difference]: Finished difference Result 244 states and 300 transitions. [2020-08-22 06:02:58,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 06:02:58,258 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-08-22 06:02:58,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:02:58,264 INFO L225 Difference]: With dead ends: 244 [2020-08-22 06:02:58,264 INFO L226 Difference]: Without dead ends: 156 [2020-08-22 06:02:58,266 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 [2020-08-22 06:02:58,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-08-22 06:02:58,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 127. [2020-08-22 06:02:58,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-08-22 06:02:58,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 150 transitions. [2020-08-22 06:02:58,312 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 150 transitions. Word has length 47 [2020-08-22 06:02:58,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:02:58,312 INFO L479 AbstractCegarLoop]: Abstraction has 127 states and 150 transitions. [2020-08-22 06:02:58,312 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 06:02:58,313 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 150 transitions. [2020-08-22 06:02:58,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-08-22 06:02:58,315 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:02:58,315 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] [2020-08-22 06:02:58,315 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 06:02:58,315 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:02:58,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:02:58,316 INFO L82 PathProgramCache]: Analyzing trace with hash -1659347680, now seen corresponding path program 1 times [2020-08-22 06:02:58,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:02:58,316 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2053340615] [2020-08-22 06:02:58,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:02:58,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:02:58,649 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 06:02:58,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:02:58,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:02:58,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:02:58,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:02:58,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:02:58,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:02:58,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:02:58,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:02:58,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:02:58,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:02:58,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 06:02:58,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:02:58,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-22 06:02:58,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:02:58,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 06:02:58,772 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2053340615] [2020-08-22 06:02:58,773 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:02:58,773 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 06:02:58,773 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656713917] [2020-08-22 06:02:58,774 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 06:02:58,774 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:02:58,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 06:02:58,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-22 06:02:58,775 INFO L87 Difference]: Start difference. First operand 127 states and 150 transitions. Second operand 8 states. [2020-08-22 06:02:59,106 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 06:02:59,421 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 06:02:59,645 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 06:02:59,863 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 06:03:00,576 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:03:02,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:03:02,329 INFO L93 Difference]: Finished difference Result 437 states and 546 transitions. [2020-08-22 06:03:02,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 06:03:02,330 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-08-22 06:03:02,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:03:02,336 INFO L225 Difference]: With dead ends: 437 [2020-08-22 06:03:02,336 INFO L226 Difference]: Without dead ends: 334 [2020-08-22 06:03:02,337 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-08-22 06:03:02,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2020-08-22 06:03:02,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 272. [2020-08-22 06:03:02,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-08-22 06:03:02,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 332 transitions. [2020-08-22 06:03:02,411 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 332 transitions. Word has length 51 [2020-08-22 06:03:02,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:03:02,411 INFO L479 AbstractCegarLoop]: Abstraction has 272 states and 332 transitions. [2020-08-22 06:03:02,411 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 06:03:02,412 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 332 transitions. [2020-08-22 06:03:02,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-08-22 06:03:02,414 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:03:02,414 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] [2020-08-22 06:03:02,415 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 06:03:02,415 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:03:02,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:03:02,415 INFO L82 PathProgramCache]: Analyzing trace with hash -2103406603, now seen corresponding path program 1 times [2020-08-22 06:03:02,416 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:03:02,416 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [306437153] [2020-08-22 06:03:02,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:03:02,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:02,728 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 06:03:02,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:03:02,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:02,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:03:02,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:02,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:03:02,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:02,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:03:02,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:02,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:03:02,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:02,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 06:03:02,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:02,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-22 06:03:02,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:02,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-22 06:03:02,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:02,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 06:03:02,840 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [306437153] [2020-08-22 06:03:02,840 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:03:02,840 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 06:03:02,840 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124404988] [2020-08-22 06:03:02,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 06:03:02,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:03:02,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 06:03:02,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-22 06:03:02,842 INFO L87 Difference]: Start difference. First operand 272 states and 332 transitions. Second operand 8 states. [2020-08-22 06:03:03,200 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 06:03:04,056 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 06:03:04,402 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 06:03:04,717 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 06:03:05,017 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 06:03:05,409 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:03:06,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:03:06,378 INFO L93 Difference]: Finished difference Result 882 states and 1149 transitions. [2020-08-22 06:03:06,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 06:03:06,379 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2020-08-22 06:03:06,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:03:06,386 INFO L225 Difference]: With dead ends: 882 [2020-08-22 06:03:06,386 INFO L226 Difference]: Without dead ends: 634 [2020-08-22 06:03:06,388 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-08-22 06:03:06,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2020-08-22 06:03:06,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 499. [2020-08-22 06:03:06,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 499 states. [2020-08-22 06:03:06,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 614 transitions. [2020-08-22 06:03:06,510 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 614 transitions. Word has length 57 [2020-08-22 06:03:06,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:03:06,510 INFO L479 AbstractCegarLoop]: Abstraction has 499 states and 614 transitions. [2020-08-22 06:03:06,511 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 06:03:06,511 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 614 transitions. [2020-08-22 06:03:06,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-08-22 06:03:06,515 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:03:06,515 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] [2020-08-22 06:03:06,515 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 06:03:06,515 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:03:06,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:03:06,516 INFO L82 PathProgramCache]: Analyzing trace with hash -1216252231, now seen corresponding path program 1 times [2020-08-22 06:03:06,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:03:06,516 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [335339464] [2020-08-22 06:03:06,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:03:06,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:06,779 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 06:03:06,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:03:06,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:06,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:03:06,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:06,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:03:06,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:06,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:03:06,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:06,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:03:06,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:06,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-22 06:03:06,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:06,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 06:03:06,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:06,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-22 06:03:06,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:06,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-22 06:03:06,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:06,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 06:03:06,871 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [335339464] [2020-08-22 06:03:06,871 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:03:06,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 06:03:06,872 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511969205] [2020-08-22 06:03:06,872 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 06:03:06,872 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:03:06,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 06:03:06,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-22 06:03:06,873 INFO L87 Difference]: Start difference. First operand 499 states and 614 transitions. Second operand 9 states. [2020-08-22 06:03:07,226 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 06:03:08,106 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 06:03:08,356 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 06:03:08,601 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 06:03:09,271 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 06:03:09,515 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:03:10,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:03:10,448 INFO L93 Difference]: Finished difference Result 1415 states and 1900 transitions. [2020-08-22 06:03:10,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-22 06:03:10,448 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 61 [2020-08-22 06:03:10,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:03:10,454 INFO L225 Difference]: With dead ends: 1415 [2020-08-22 06:03:10,454 INFO L226 Difference]: Without dead ends: 940 [2020-08-22 06:03:10,457 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-08-22 06:03:10,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2020-08-22 06:03:10,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 759. [2020-08-22 06:03:10,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 759 states. [2020-08-22 06:03:10,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 759 states to 759 states and 935 transitions. [2020-08-22 06:03:10,660 INFO L78 Accepts]: Start accepts. Automaton has 759 states and 935 transitions. Word has length 61 [2020-08-22 06:03:10,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:03:10,660 INFO L479 AbstractCegarLoop]: Abstraction has 759 states and 935 transitions. [2020-08-22 06:03:10,660 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 06:03:10,661 INFO L276 IsEmpty]: Start isEmpty. Operand 759 states and 935 transitions. [2020-08-22 06:03:10,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-08-22 06:03:10,664 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:03:10,664 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] [2020-08-22 06:03:10,665 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 06:03:10,665 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:03:10,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:03:10,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1403376364, now seen corresponding path program 1 times [2020-08-22 06:03:10,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:03:10,666 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [384475992] [2020-08-22 06:03:10,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:03:10,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:10,919 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 06:03:10,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:03:10,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:10,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:03:10,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:10,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:03:10,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:10,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:03:10,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:10,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:03:10,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:10,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-22 06:03:10,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:10,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-22 06:03:10,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:10,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:03:10,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:10,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:03:10,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:11,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:03:11,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:11,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 06:03:11,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:11,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:03:11,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:11,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:03:11,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:11,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:03:11,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:11,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 06:03:11,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:11,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 06:03:11,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:11,054 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 06:03:11,054 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [384475992] [2020-08-22 06:03:11,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:03:11,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 06:03:11,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690300270] [2020-08-22 06:03:11,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 06:03:11,056 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:03:11,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 06:03:11,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-22 06:03:11,057 INFO L87 Difference]: Start difference. First operand 759 states and 935 transitions. Second operand 9 states. [2020-08-22 06:03:11,441 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 06:03:12,342 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:03:12,571 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:03:12,831 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:03:13,064 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:03:14,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:03:14,827 INFO L93 Difference]: Finished difference Result 2506 states and 3515 transitions. [2020-08-22 06:03:14,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-22 06:03:14,827 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 98 [2020-08-22 06:03:14,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:03:14,844 INFO L225 Difference]: With dead ends: 2506 [2020-08-22 06:03:14,844 INFO L226 Difference]: Without dead ends: 1771 [2020-08-22 06:03:14,849 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2020-08-22 06:03:14,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1771 states. [2020-08-22 06:03:15,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1771 to 1371. [2020-08-22 06:03:15,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1371 states. [2020-08-22 06:03:15,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1371 states to 1371 states and 1674 transitions. [2020-08-22 06:03:15,177 INFO L78 Accepts]: Start accepts. Automaton has 1371 states and 1674 transitions. Word has length 98 [2020-08-22 06:03:15,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:03:15,178 INFO L479 AbstractCegarLoop]: Abstraction has 1371 states and 1674 transitions. [2020-08-22 06:03:15,178 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 06:03:15,178 INFO L276 IsEmpty]: Start isEmpty. Operand 1371 states and 1674 transitions. [2020-08-22 06:03:15,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-08-22 06:03:15,186 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:03:15,186 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] [2020-08-22 06:03:15,186 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 06:03:15,187 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:03:15,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:03:15,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1411135723, now seen corresponding path program 1 times [2020-08-22 06:03:15,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:03:15,188 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [393831688] [2020-08-22 06:03:15,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:03:15,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:15,413 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 06:03:15,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:03:15,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:15,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:03:15,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:15,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:03:15,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:15,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:03:15,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:15,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:03:15,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:15,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-22 06:03:15,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:15,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-22 06:03:15,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:15,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:03:15,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:15,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:03:15,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:15,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:03:15,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:15,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 06:03:15,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:15,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:03:15,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:15,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:03:15,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:15,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:03:15,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:15,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 06:03:15,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:15,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 06:03:15,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:15,548 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 06:03:15,552 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [393831688] [2020-08-22 06:03:15,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:03:15,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 06:03:15,553 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026336004] [2020-08-22 06:03:15,554 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 06:03:15,554 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:03:15,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 06:03:15,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-22 06:03:15,554 INFO L87 Difference]: Start difference. First operand 1371 states and 1674 transitions. Second operand 9 states. [2020-08-22 06:03:16,500 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:03:16,726 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:03:16,973 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:03:17,222 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:03:18,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:03:18,615 INFO L93 Difference]: Finished difference Result 3134 states and 4213 transitions. [2020-08-22 06:03:18,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 06:03:18,616 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 98 [2020-08-22 06:03:18,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:03:18,633 INFO L225 Difference]: With dead ends: 3134 [2020-08-22 06:03:18,633 INFO L226 Difference]: Without dead ends: 1787 [2020-08-22 06:03:18,641 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-08-22 06:03:18,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1787 states. [2020-08-22 06:03:19,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1787 to 1411. [2020-08-22 06:03:19,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1411 states. [2020-08-22 06:03:19,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1411 states to 1411 states and 1714 transitions. [2020-08-22 06:03:19,039 INFO L78 Accepts]: Start accepts. Automaton has 1411 states and 1714 transitions. Word has length 98 [2020-08-22 06:03:19,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:03:19,040 INFO L479 AbstractCegarLoop]: Abstraction has 1411 states and 1714 transitions. [2020-08-22 06:03:19,040 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 06:03:19,040 INFO L276 IsEmpty]: Start isEmpty. Operand 1411 states and 1714 transitions. [2020-08-22 06:03:19,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-08-22 06:03:19,045 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:03:19,046 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] [2020-08-22 06:03:19,046 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-22 06:03:19,047 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:03:19,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:03:19,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1990345235, now seen corresponding path program 1 times [2020-08-22 06:03:19,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:03:19,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [83842781] [2020-08-22 06:03:19,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:03:19,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:19,351 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 06:03:19,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:03:19,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:19,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:03:19,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:19,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:03:19,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:19,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:03:19,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:19,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:03:19,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:19,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-22 06:03:19,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:19,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-22 06:03:19,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:19,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:03:19,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:19,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:03:19,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:19,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:03:19,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:19,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 06:03:19,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:19,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:03:19,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:19,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:03:19,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:19,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:03:19,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:19,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 06:03:19,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:19,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 06:03:19,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:19,498 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 06:03:19,498 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [83842781] [2020-08-22 06:03:19,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:03:19,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-22 06:03:19,499 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044248186] [2020-08-22 06:03:19,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 06:03:19,500 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:03:19,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 06:03:19,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-08-22 06:03:19,501 INFO L87 Difference]: Start difference. First operand 1411 states and 1714 transitions. Second operand 11 states. [2020-08-22 06:03:20,297 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 06:03:20,530 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:03:20,742 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:03:21,380 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:03:21,628 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:03:21,851 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 06:03:23,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:03:23,048 INFO L93 Difference]: Finished difference Result 2760 states and 3605 transitions. [2020-08-22 06:03:23,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 06:03:23,048 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 98 [2020-08-22 06:03:23,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:03:23,057 INFO L225 Difference]: With dead ends: 2760 [2020-08-22 06:03:23,057 INFO L226 Difference]: Without dead ends: 1373 [2020-08-22 06:03:23,062 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-08-22 06:03:23,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1373 states. [2020-08-22 06:03:23,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1373 to 1129. [2020-08-22 06:03:23,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1129 states. [2020-08-22 06:03:23,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1129 states to 1129 states and 1346 transitions. [2020-08-22 06:03:23,281 INFO L78 Accepts]: Start accepts. Automaton has 1129 states and 1346 transitions. Word has length 98 [2020-08-22 06:03:23,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:03:23,282 INFO L479 AbstractCegarLoop]: Abstraction has 1129 states and 1346 transitions. [2020-08-22 06:03:23,282 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 06:03:23,282 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states and 1346 transitions. [2020-08-22 06:03:23,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-08-22 06:03:23,287 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:03:23,287 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] [2020-08-22 06:03:23,287 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-22 06:03:23,287 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:03:23,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:03:23,288 INFO L82 PathProgramCache]: Analyzing trace with hash 860662504, now seen corresponding path program 1 times [2020-08-22 06:03:23,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:03:23,288 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [362988170] [2020-08-22 06:03:23,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:03:23,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:23,567 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 06:03:23,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:03:23,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:23,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:03:23,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:23,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:03:23,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:23,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:03:23,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:23,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:03:23,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:23,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 06:03:23,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:23,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-22 06:03:23,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:23,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-22 06:03:23,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:23,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:03:23,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:23,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:03:23,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:23,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:03:23,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:23,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 06:03:23,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:23,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:03:23,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:23,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:03:23,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:23,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:03:23,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:23,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-08-22 06:03:23,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:23,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-22 06:03:23,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:23,947 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-22 06:03:23,947 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [362988170] [2020-08-22 06:03:23,948 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 06:03:23,948 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-08-22 06:03:23,948 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397689976] [2020-08-22 06:03:23,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-08-22 06:03:23,949 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:03:23,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-08-22 06:03:23,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2020-08-22 06:03:23,951 INFO L87 Difference]: Start difference. First operand 1129 states and 1346 transitions. Second operand 17 states. [2020-08-22 06:03:24,683 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 06:03:24,995 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:03:25,257 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:03:25,508 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:03:26,107 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 06:03:26,660 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:03:27,059 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:03:28,207 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:03:28,486 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:03:28,789 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:03:29,067 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:03:29,557 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-08-22 06:03:30,049 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-08-22 06:03:31,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:03:31,371 INFO L93 Difference]: Finished difference Result 2470 states and 3101 transitions. [2020-08-22 06:03:31,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-08-22 06:03:31,372 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 102 [2020-08-22 06:03:31,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:03:31,380 INFO L225 Difference]: With dead ends: 2470 [2020-08-22 06:03:31,380 INFO L226 Difference]: Without dead ends: 1365 [2020-08-22 06:03:31,385 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=342, Invalid=1380, Unknown=0, NotChecked=0, Total=1722 [2020-08-22 06:03:31,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1365 states. [2020-08-22 06:03:31,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1365 to 1103. [2020-08-22 06:03:31,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1103 states. [2020-08-22 06:03:31,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1103 states to 1103 states and 1291 transitions. [2020-08-22 06:03:31,668 INFO L78 Accepts]: Start accepts. Automaton has 1103 states and 1291 transitions. Word has length 102 [2020-08-22 06:03:31,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:03:31,670 INFO L479 AbstractCegarLoop]: Abstraction has 1103 states and 1291 transitions. [2020-08-22 06:03:31,670 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-08-22 06:03:31,670 INFO L276 IsEmpty]: Start isEmpty. Operand 1103 states and 1291 transitions. [2020-08-22 06:03:31,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-08-22 06:03:31,675 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:03:31,678 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 06:03:31,678 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-22 06:03:31,678 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:03:31,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:03:31,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1219959590, now seen corresponding path program 1 times [2020-08-22 06:03:31,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:03:31,681 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [620686170] [2020-08-22 06:03:31,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:03:31,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:31,934 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 06:03:31,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:03:31,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:31,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:03:31,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:31,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:03:31,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:31,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:03:31,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:31,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:03:31,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:31,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 06:03:31,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:31,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-22 06:03:31,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:31,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:03:31,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:31,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:03:31,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:32,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:03:32,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:32,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:03:32,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:32,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 06:03:32,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:32,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:03:32,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:32,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:03:32,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:32,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:03:32,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:32,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-22 06:03:32,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:32,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:03:32,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:32,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 06:03:32,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:32,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-08-22 06:03:32,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:32,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-08-22 06:03:32,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:32,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:03:32,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:32,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:03:32,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:32,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 06:03:32,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:32,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:03:32,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:32,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-22 06:03:32,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:32,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-08-22 06:03:32,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:32,091 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 16 proven. 5 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-08-22 06:03:32,091 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [620686170] [2020-08-22 06:03:32,091 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 06:03:32,092 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-22 06:03:32,092 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443239010] [2020-08-22 06:03:32,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 06:03:32,093 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:03:32,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 06:03:32,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-08-22 06:03:32,093 INFO L87 Difference]: Start difference. First operand 1103 states and 1291 transitions. Second operand 9 states. [2020-08-22 06:03:33,016 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 06:03:34,844 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 06:03:35,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:03:35,894 INFO L93 Difference]: Finished difference Result 3017 states and 3973 transitions. [2020-08-22 06:03:35,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-08-22 06:03:35,896 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 153 [2020-08-22 06:03:35,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:03:35,910 INFO L225 Difference]: With dead ends: 3017 [2020-08-22 06:03:35,910 INFO L226 Difference]: Without dead ends: 2254 [2020-08-22 06:03:35,914 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 60 SyntacticMatches, 5 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2020-08-22 06:03:35,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2254 states. [2020-08-22 06:03:36,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2254 to 1821. [2020-08-22 06:03:36,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1821 states. [2020-08-22 06:03:36,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2151 transitions. [2020-08-22 06:03:36,234 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2151 transitions. Word has length 153 [2020-08-22 06:03:36,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:03:36,235 INFO L479 AbstractCegarLoop]: Abstraction has 1821 states and 2151 transitions. [2020-08-22 06:03:36,235 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 06:03:36,235 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2151 transitions. [2020-08-22 06:03:36,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-08-22 06:03:36,240 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:03:36,240 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 06:03:36,241 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-22 06:03:36,241 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:03:36,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:03:36,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1025619864, now seen corresponding path program 1 times [2020-08-22 06:03:36,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:03:36,242 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2082788682] [2020-08-22 06:03:36,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:03:36,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:36,596 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 06:03:36,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:03:36,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:36,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:03:36,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:36,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:03:36,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:36,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:03:36,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:36,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 06:03:36,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:36,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 06:03:36,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:36,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-22 06:03:36,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:36,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:03:36,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:36,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:03:36,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:36,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:03:36,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:36,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:03:36,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:36,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 06:03:36,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:36,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:03:36,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:36,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:03:36,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:36,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:03:36,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:36,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-22 06:03:36,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:36,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:03:36,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:36,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 06:03:36,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:36,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-08-22 06:03:36,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:36,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-08-22 06:03:36,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:36,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:03:36,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:36,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:03:36,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:36,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 06:03:36,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:36,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 06:03:36,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:36,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-22 06:03:36,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:36,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-08-22 06:03:36,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:03:36,986 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-08-22 06:03:36,987 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2082788682] [2020-08-22 06:03:36,987 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 06:03:36,988 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-08-22 06:03:36,989 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693841590] [2020-08-22 06:03:36,990 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-08-22 06:03:36,990 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:03:36,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-08-22 06:03:36,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2020-08-22 06:03:36,991 INFO L87 Difference]: Start difference. First operand 1821 states and 2151 transitions. Second operand 18 states. [2020-08-22 06:03:37,842 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 06:03:38,156 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 06:03:38,395 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:03:38,655 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 06:03:39,294 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 06:03:39,838 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 06:03:40,201 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 06:03:41,400 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 06:03:41,661 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 06:03:41,943 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 06:03:42,209 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 06:03:43,070 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 06:03:43,301 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 06:03:43,556 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 06:03:43,823 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 06:03:44,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:03:44,570 INFO L93 Difference]: Finished difference Result 3558 states and 4508 transitions. [2020-08-22 06:03:44,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-08-22 06:03:44,571 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 153 [2020-08-22 06:03:44,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:03:44,578 INFO L225 Difference]: With dead ends: 3558 [2020-08-22 06:03:44,578 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 06:03:44,587 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 489 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=387, Invalid=1775, Unknown=0, NotChecked=0, Total=2162 [2020-08-22 06:03:44,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 06:03:44,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 06:03:44,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 06:03:44,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 06:03:44,589 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 153 [2020-08-22 06:03:44,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:03:44,589 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 06:03:44,589 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-08-22 06:03:44,589 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 06:03:44,590 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 06:03:44,590 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-22 06:03:44,592 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 06:03:48,258 WARN L193 SmtUtils]: Spent 1.94 s on a formula simplification. DAG size of input: 500 DAG size of output: 332