/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 false -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 10:10:15,009 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 10:10:15,014 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 10:10:15,059 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 10:10:15,059 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 10:10:15,060 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 10:10:15,061 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 10:10:15,063 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 10:10:15,065 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 10:10:15,066 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 10:10:15,067 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 10:10:15,068 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 10:10:15,068 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 10:10:15,069 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 10:10:15,070 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 10:10:15,071 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 10:10:15,072 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 10:10:15,073 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 10:10:15,075 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 10:10:15,077 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 10:10:15,078 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 10:10:15,079 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 10:10:15,080 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 10:10:15,081 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 10:10:15,084 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 10:10:15,084 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 10:10:15,084 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 10:10:15,085 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 10:10:15,086 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 10:10:15,087 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 10:10:15,087 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 10:10:15,088 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 10:10:15,088 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 10:10:15,089 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 10:10:15,090 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 10:10:15,091 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 10:10:15,091 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 10:10:15,091 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 10:10:15,092 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 10:10:15,093 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 10:10:15,093 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 10:10:15,094 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 [2020-09-21 10:10:15,118 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 10:10:15,119 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 10:10:15,120 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 10:10:15,120 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 10:10:15,120 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 10:10:15,120 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 10:10:15,121 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 10:10:15,121 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 10:10:15,121 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 10:10:15,121 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 10:10:15,121 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 10:10:15,122 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 10:10:15,122 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 10:10:15,122 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 10:10:15,122 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 10:10:15,122 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 10:10:15,123 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 10:10:15,123 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 10:10:15,123 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 10:10:15,123 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 10:10:15,124 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 10:10:15,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 10:10:15,124 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 10:10:15,124 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 10:10:15,124 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 10:10:15,125 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 10:10:15,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 10:10:15,125 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 10:10:15,125 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 10:10:15,125 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 -> false [2020-09-21 10:10:15,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 10:10:15,596 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 10:10:15,601 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 10:10:15,602 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 10:10:15,603 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 10:10:15,604 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product32.cil.c [2020-09-21 10:10:15,694 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/234dc1567/424f93fd25bd45b6a355dfb10f0880b8/FLAG332a35995 [2020-09-21 10:10:16,325 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 10:10:16,326 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product32.cil.c [2020-09-21 10:10:16,340 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/234dc1567/424f93fd25bd45b6a355dfb10f0880b8/FLAG332a35995 [2020-09-21 10:10:16,555 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/234dc1567/424f93fd25bd45b6a355dfb10f0880b8 [2020-09-21 10:10:16,568 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 10:10:16,572 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 10:10:16,573 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 10:10:16,573 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 10:10:16,578 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 10:10:16,579 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 10:10:16" (1/1) ... [2020-09-21 10:10:16,585 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11a529ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:10:16, skipping insertion in model container [2020-09-21 10:10:16,585 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 10:10:16" (1/1) ... [2020-09-21 10:10:16,595 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 10:10:16,643 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 10:10:16,994 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 10:10:17,015 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 10:10:17,209 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 10:10:17,260 INFO L208 MainTranslator]: Completed translation [2020-09-21 10:10:17,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:10:17 WrapperNode [2020-09-21 10:10:17,262 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 10:10:17,263 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 10:10:17,263 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 10:10:17,263 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 10:10:17,281 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:10:17" (1/1) ... [2020-09-21 10:10:17,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:10:17" (1/1) ... [2020-09-21 10:10:17,322 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:10:17" (1/1) ... [2020-09-21 10:10:17,323 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:10:17" (1/1) ... [2020-09-21 10:10:17,352 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:10:17" (1/1) ... [2020-09-21 10:10:17,363 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:10:17" (1/1) ... [2020-09-21 10:10:17,368 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:10:17" (1/1) ... [2020-09-21 10:10:17,376 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 10:10:17,377 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 10:10:17,377 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 10:10:17,377 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 10:10:17,378 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:10:17" (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 [2020-09-21 10:10:17,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 10:10:17,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 10:10:17,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 10:10:17,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-21 10:10:17,473 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 10:10:17,473 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 10:10:17,473 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 10:10:17,473 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 10:10:17,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 10:10:17,474 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 10:10:17,474 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 10:10:17,474 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 10:10:17,474 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 10:10:17,475 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 10:10:17,475 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 10:10:17,475 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 10:10:17,475 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 10:10:17,476 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 10:10:17,476 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 10:10:17,476 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 10:10:17,476 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-21 10:10:17,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 10:10:17,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 10:10:17,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 10:10:17,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 10:10:17,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 10:10:17,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 10:10:17,478 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 10:10:17,478 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 10:10:17,478 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-21 10:10:17,478 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 10:10:17,478 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-21 10:10:17,478 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 10:10:17,479 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 10:10:17,479 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 10:10:17,479 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 10:10:17,479 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 10:10:17,479 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-21 10:10:17,479 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-21 10:10:17,480 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-21 10:10:17,480 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 10:10:17,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 10:10:17,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 10:10:17,480 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 10:10:17,480 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 10:10:17,481 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 10:10:17,481 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 10:10:17,481 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-21 10:10:17,481 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 10:10:17,481 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 10:10:17,481 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 10:10:17,482 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 10:10:17,482 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 10:10:17,482 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 10:10:17,482 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 10:10:17,482 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 10:10:17,482 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 10:10:17,483 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 10:10:17,483 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 10:10:17,483 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 10:10:17,483 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 10:10:17,483 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 10:10:17,483 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 10:10:17,484 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 10:10:17,484 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 10:10:17,484 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-21 10:10:17,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 10:10:17,484 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 10:10:17,484 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 10:10:17,485 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 10:10:17,485 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 10:10:17,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 10:10:17,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 10:10:17,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 10:10:17,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 10:10:17,486 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 10:10:17,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 10:10:17,486 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 10:10:17,486 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 10:10:17,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 10:10:17,486 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 10:10:17,487 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 10:10:17,487 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 10:10:17,487 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 10:10:17,487 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 10:10:17,487 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-21 10:10:17,487 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-21 10:10:17,488 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 10:10:17,488 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 10:10:17,488 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-21 10:10:17,488 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-21 10:10:17,488 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 10:10:17,488 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-21 10:10:17,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 10:10:17,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 10:10:17,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 10:10:18,558 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 10:10:18,559 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 10:10:18,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 10:10:18 BoogieIcfgContainer [2020-09-21 10:10:18,567 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 10:10:18,571 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 10:10:18,571 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 10:10:18,575 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 10:10:18,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 10:10:16" (1/3) ... [2020-09-21 10:10:18,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25a53fa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 10:10:18, skipping insertion in model container [2020-09-21 10:10:18,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:10:17" (2/3) ... [2020-09-21 10:10:18,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25a53fa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 10:10:18, skipping insertion in model container [2020-09-21 10:10:18,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 10:10:18" (3/3) ... [2020-09-21 10:10:18,580 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product32.cil.c [2020-09-21 10:10:18,591 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 10:10:18,602 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 10:10:18,621 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 10:10:18,647 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 10:10:18,647 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 10:10:18,647 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 10:10:18,647 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 10:10:18,648 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 10:10:18,648 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 10:10:18,648 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 10:10:18,648 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 10:10:18,671 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states. [2020-09-21 10:10:18,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-21 10:10:18,683 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:10:18,684 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] [2020-09-21 10:10:18,684 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:10:18,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:10:18,692 INFO L82 PathProgramCache]: Analyzing trace with hash -1393146994, now seen corresponding path program 1 times [2020-09-21 10:10:18,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:10:18,702 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [440368598] [2020-09-21 10:10:18,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:10:18,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:19,385 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 10:10:19,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:10:19,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:19,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:10:19,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:19,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 10:10:19,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:19,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:10:19,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:19,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 10:10:19,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:19,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 10:10:19,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:19,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 10:10:19,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:19,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:10:19,489 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [440368598] [2020-09-21 10:10:19,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:10:19,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 10:10:19,492 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530776386] [2020-09-21 10:10:19,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 10:10:19,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:10:19,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 10:10:19,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 10:10:19,520 INFO L87 Difference]: Start difference. First operand 183 states. Second operand 3 states. [2020-09-21 10:10:20,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:10:20,720 INFO L93 Difference]: Finished difference Result 308 states and 403 transitions. [2020-09-21 10:10:20,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 10:10:20,722 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-09-21 10:10:20,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:10:20,750 INFO L225 Difference]: With dead ends: 308 [2020-09-21 10:10:20,750 INFO L226 Difference]: Without dead ends: 167 [2020-09-21 10:10:20,758 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 [2020-09-21 10:10:20,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2020-09-21 10:10:20,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 132. [2020-09-21 10:10:20,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-09-21 10:10:20,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 155 transitions. [2020-09-21 10:10:20,873 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 155 transitions. Word has length 46 [2020-09-21 10:10:20,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:10:20,873 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 155 transitions. [2020-09-21 10:10:20,873 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 10:10:20,874 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 155 transitions. [2020-09-21 10:10:20,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-09-21 10:10:20,878 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:10:20,878 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] [2020-09-21 10:10:20,878 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 10:10:20,878 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:10:20,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:10:20,879 INFO L82 PathProgramCache]: Analyzing trace with hash 1814082405, now seen corresponding path program 1 times [2020-09-21 10:10:20,879 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:10:20,880 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1933815755] [2020-09-21 10:10:20,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:10:20,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:21,241 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 10:10:21,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:10:21,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:21,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:10:21,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:21,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 10:10:21,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:21,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:10:21,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:21,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 10:10:21,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:21,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 10:10:21,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:21,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 10:10:21,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:21,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:10:21,294 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1933815755] [2020-09-21 10:10:21,295 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:10:21,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 10:10:21,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12672676] [2020-09-21 10:10:21,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 10:10:21,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:10:21,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 10:10:21,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 10:10:21,298 INFO L87 Difference]: Start difference. First operand 132 states and 155 transitions. Second operand 4 states. [2020-09-21 10:10:21,733 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 10:10:22,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:10:22,621 INFO L93 Difference]: Finished difference Result 231 states and 282 transitions. [2020-09-21 10:10:22,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 10:10:22,622 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-09-21 10:10:22,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:10:22,625 INFO L225 Difference]: With dead ends: 231 [2020-09-21 10:10:22,625 INFO L226 Difference]: Without dead ends: 151 [2020-09-21 10:10:22,627 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 10:10:22,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-09-21 10:10:22,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 123. [2020-09-21 10:10:22,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-09-21 10:10:22,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 143 transitions. [2020-09-21 10:10:22,664 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 143 transitions. Word has length 47 [2020-09-21 10:10:22,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:10:22,664 INFO L479 AbstractCegarLoop]: Abstraction has 123 states and 143 transitions. [2020-09-21 10:10:22,665 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 10:10:22,665 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 143 transitions. [2020-09-21 10:10:22,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 10:10:22,667 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:10:22,667 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:10:22,667 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 10:10:22,667 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:10:22,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:10:22,668 INFO L82 PathProgramCache]: Analyzing trace with hash -947171688, now seen corresponding path program 1 times [2020-09-21 10:10:22,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:10:22,668 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [62337377] [2020-09-21 10:10:22,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:10:22,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:23,103 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 10:10:23,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:10:23,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:23,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:10:23,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:23,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 10:10:23,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:23,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:10:23,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:23,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 10:10:23,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:23,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 10:10:23,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:23,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 10:10:23,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:23,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:10:23,202 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [62337377] [2020-09-21 10:10:23,202 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:10:23,202 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 10:10:23,203 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113679171] [2020-09-21 10:10:23,203 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 10:10:23,203 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:10:23,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 10:10:23,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 10:10:23,204 INFO L87 Difference]: Start difference. First operand 123 states and 143 transitions. Second operand 8 states. [2020-09-21 10:10:23,623 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 10:10:23,987 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:10:24,320 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:10:24,617 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:10:25,414 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 10:10:27,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:10:27,377 INFO L93 Difference]: Finished difference Result 424 states and 526 transitions. [2020-09-21 10:10:27,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 10:10:27,377 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2020-09-21 10:10:27,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:10:27,382 INFO L225 Difference]: With dead ends: 424 [2020-09-21 10:10:27,382 INFO L226 Difference]: Without dead ends: 325 [2020-09-21 10:10:27,383 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-09-21 10:10:27,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2020-09-21 10:10:27,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 260. [2020-09-21 10:10:27,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2020-09-21 10:10:27,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 314 transitions. [2020-09-21 10:10:27,468 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 314 transitions. Word has length 52 [2020-09-21 10:10:27,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:10:27,468 INFO L479 AbstractCegarLoop]: Abstraction has 260 states and 314 transitions. [2020-09-21 10:10:27,469 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 10:10:27,469 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 314 transitions. [2020-09-21 10:10:27,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-21 10:10:27,471 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:10:27,471 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] [2020-09-21 10:10:27,472 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 10:10:27,472 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:10:27,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:10:27,472 INFO L82 PathProgramCache]: Analyzing trace with hash -306167776, now seen corresponding path program 1 times [2020-09-21 10:10:27,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:10:27,473 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [193178972] [2020-09-21 10:10:27,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:10:27,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:27,889 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 10:10:27,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:10:27,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:27,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:10:27,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:27,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 10:10:27,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:27,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:10:27,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:27,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 10:10:27,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:27,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 10:10:27,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:27,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 10:10:27,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:28,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 10:10:28,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:28,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:10:28,025 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [193178972] [2020-09-21 10:10:28,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:10:28,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-21 10:10:28,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744023364] [2020-09-21 10:10:28,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 10:10:28,026 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:10:28,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 10:10:28,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-09-21 10:10:28,027 INFO L87 Difference]: Start difference. First operand 260 states and 314 transitions. Second operand 12 states. [2020-09-21 10:10:28,532 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 10:10:28,841 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:10:29,133 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:10:29,415 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:10:30,033 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 10:10:30,919 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:10:31,371 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:10:31,745 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:10:32,094 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 10:10:32,423 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 10:10:32,869 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:10:33,292 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:10:33,752 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:10:35,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:10:35,260 INFO L93 Difference]: Finished difference Result 1047 states and 1392 transitions. [2020-09-21 10:10:35,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-21 10:10:35,261 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 57 [2020-09-21 10:10:35,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:10:35,274 INFO L225 Difference]: With dead ends: 1047 [2020-09-21 10:10:35,274 INFO L226 Difference]: Without dead ends: 811 [2020-09-21 10:10:35,276 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2020-09-21 10:10:35,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2020-09-21 10:10:35,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 706. [2020-09-21 10:10:35,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-09-21 10:10:35,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 874 transitions. [2020-09-21 10:10:35,445 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 874 transitions. Word has length 57 [2020-09-21 10:10:35,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:10:35,446 INFO L479 AbstractCegarLoop]: Abstraction has 706 states and 874 transitions. [2020-09-21 10:10:35,446 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-21 10:10:35,446 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 874 transitions. [2020-09-21 10:10:35,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-21 10:10:35,449 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:10:35,449 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] [2020-09-21 10:10:35,450 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 10:10:35,450 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:10:35,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:10:35,450 INFO L82 PathProgramCache]: Analyzing trace with hash -714386778, now seen corresponding path program 1 times [2020-09-21 10:10:35,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:10:35,451 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2124848663] [2020-09-21 10:10:35,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:10:35,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:35,793 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 10:10:35,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:10:35,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:35,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:10:35,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:35,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 10:10:35,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:35,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:10:35,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:35,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 10:10:35,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:35,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 10:10:35,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:35,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 10:10:35,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:35,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 10:10:35,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:35,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-21 10:10:35,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:35,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:10:35,909 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2124848663] [2020-09-21 10:10:35,909 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:10:35,909 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 10:10:35,910 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292700399] [2020-09-21 10:10:35,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 10:10:35,910 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:10:35,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 10:10:35,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 10:10:35,911 INFO L87 Difference]: Start difference. First operand 706 states and 874 transitions. Second operand 6 states. [2020-09-21 10:10:36,272 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 10:10:37,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:10:37,112 INFO L93 Difference]: Finished difference Result 1181 states and 1540 transitions. [2020-09-21 10:10:37,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 10:10:37,115 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2020-09-21 10:10:37,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:10:37,120 INFO L225 Difference]: With dead ends: 1181 [2020-09-21 10:10:37,120 INFO L226 Difference]: Without dead ends: 499 [2020-09-21 10:10:37,123 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-09-21 10:10:37,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2020-09-21 10:10:37,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 432. [2020-09-21 10:10:37,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 432 states. [2020-09-21 10:10:37,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 491 transitions. [2020-09-21 10:10:37,206 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 491 transitions. Word has length 61 [2020-09-21 10:10:37,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:10:37,207 INFO L479 AbstractCegarLoop]: Abstraction has 432 states and 491 transitions. [2020-09-21 10:10:37,207 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 10:10:37,207 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 491 transitions. [2020-09-21 10:10:37,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-09-21 10:10:37,209 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:10:37,209 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-21 10:10:37,210 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 10:10:37,210 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:10:37,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:10:37,210 INFO L82 PathProgramCache]: Analyzing trace with hash -1764824326, now seen corresponding path program 1 times [2020-09-21 10:10:37,210 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:10:37,211 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1885083073] [2020-09-21 10:10:37,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:10:37,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:37,626 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 10:10:37,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:10:37,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:37,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:10:37,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:37,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 10:10:37,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:37,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:10:37,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:37,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 10:10:37,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:37,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 10:10:37,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:37,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:10:37,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:37,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-21 10:10:37,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:37,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:10:37,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:37,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:10:37,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:37,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-09-21 10:10:37,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:37,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-21 10:10:37,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:37,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-21 10:10:37,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:10:37,801 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 13 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-21 10:10:37,802 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1885083073] [2020-09-21 10:10:37,803 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 10:10:37,803 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-21 10:10:37,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131439845] [2020-09-21 10:10:37,804 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 10:10:37,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:10:37,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 10:10:37,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-09-21 10:10:37,806 INFO L87 Difference]: Start difference. First operand 432 states and 491 transitions. Second operand 10 states. [2020-09-21 10:10:38,529 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 186 [2020-09-21 10:10:39,208 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 10:10:40,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:10:40,270 INFO L93 Difference]: Finished difference Result 605 states and 715 transitions. [2020-09-21 10:10:40,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 10:10:40,271 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 89 [2020-09-21 10:10:40,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:10:40,272 INFO L225 Difference]: With dead ends: 605 [2020-09-21 10:10:40,272 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 10:10:40,275 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2020-09-21 10:10:40,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 10:10:40,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 10:10:40,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 10:10:40,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 10:10:40,276 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 89 [2020-09-21 10:10:40,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:10:40,277 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 10:10:40,277 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 10:10:40,277 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 10:10:40,277 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 10:10:40,277 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 10:10:40,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 10:10:40,663 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:10:40,829 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:10:41,007 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:10:41,357 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:10:41,706 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:10:41,962 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 28 [2020-09-21 10:10:42,314 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:10:42,489 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:10:42,663 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:10:43,007 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:10:43,350 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:10:43,935 WARN L193 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 242 [2020-09-21 10:10:44,277 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:10:44,437 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:10:44,613 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:10:44,951 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:10:45,511 WARN L193 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 241 [2020-09-21 10:10:45,943 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 221 [2020-09-21 10:10:46,194 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-09-21 10:10:46,625 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 221 [2020-09-21 10:10:46,869 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-09-21 10:10:47,296 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 222 [2020-09-21 10:10:47,728 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 221 [2020-09-21 10:10:47,975 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-09-21 10:10:48,406 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 222 [2020-09-21 10:10:48,654 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-09-21 10:10:48,985 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-09-21 10:10:49,541 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 221 [2020-09-21 10:10:50,100 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 221 [2020-09-21 10:10:50,428 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-09-21 10:10:50,985 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 221 [2020-09-21 10:10:51,348 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 224 [2020-09-21 10:10:51,487 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 10:10:51,837 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 224 [2020-09-21 10:10:52,175 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:10:52,336 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:10:52,673 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:10:52,831 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:10:53,162 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-09-21 10:10:53,499 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:10:53,657 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:10:53,994 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:10:54,148 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:10:54,481 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-09-21 10:10:54,821 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:10:54,978 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:10:55,132 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:10:55,289 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:10:55,637 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:10:55,976 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:10:56,322 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:10:56,662 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:10:56,993 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-09-21 10:10:57,331 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:10:57,668 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:10:57,826 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:10:57,985 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:10:58,144 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:10:58,296 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:10:58,650 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:10:58,983 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-21 10:10:59,319 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:10:59,637 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-21 10:10:59,976 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:11:00,314 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:11:00,651 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:11:00,941 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-21 10:11:01,273 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-09-21 10:11:01,586 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 189 [2020-09-21 10:11:01,744 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:11:01,903 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:11:02,062 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:11:02,402 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:11:02,736 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-09-21 10:11:03,073 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:11:03,237 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:11:03,581 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:11:03,926 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:11:04,084 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:11:04,641 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 239 [2020-09-21 10:11:05,007 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:11:05,344 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:11:05,502 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:11:05,657 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:11:05,814 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:11:06,154 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:11:06,485 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2020-09-21 10:11:06,825 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:11:06,984 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:11:07,324 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2020-09-21 10:11:07,675 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:11:07,833 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:11:08,172 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:11:08,716 WARN L193 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 241 [2020-09-21 10:11:09,076 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:11:09,620 WARN L193 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 241 [2020-09-21 10:11:10,081 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 222 [2020-09-21 10:11:10,351 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 193 [2020-09-21 10:11:10,796 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 222 [2020-09-21 10:11:11,060 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 193 [2020-09-21 10:11:11,607 WARN L193 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 220 [2020-09-21 10:11:12,053 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 222 [2020-09-21 10:11:12,319 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 193 [2020-09-21 10:11:12,815 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 222 [2020-09-21 10:11:13,068 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 190 [2020-09-21 10:11:13,406 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:11:13,764 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-09-21 10:11:14,069 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-09-21 10:11:14,463 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 221 [2020-09-21 10:11:14,765 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-09-21 10:11:15,149 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 221 [2020-09-21 10:11:15,535 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 221 [2020-09-21 10:11:16,337 WARN L193 SmtUtils]: Spent 785.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 18 [2020-09-21 10:11:16,836 WARN L193 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 22 [2020-09-21 10:11:17,128 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 1 [2020-09-21 10:11:17,236 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-09-21 10:11:17,599 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 22 [2020-09-21 10:11:18,399 WARN L193 SmtUtils]: Spent 797.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 18 [2020-09-21 10:11:18,731 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 22 [2020-09-21 10:11:19,410 WARN L193 SmtUtils]: Spent 668.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 22 [2020-09-21 10:11:19,998 WARN L193 SmtUtils]: Spent 584.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 17 [2020-09-21 10:11:20,552 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 24 [2020-09-21 10:11:20,799 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 10:11:21,309 WARN L193 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 24 [2020-09-21 10:11:22,058 WARN L193 SmtUtils]: Spent 743.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 21