/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product45.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 01:43:47,241 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 01:43:47,243 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 01:43:47,266 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 01:43:47,267 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 01:43:47,268 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 01:43:47,269 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 01:43:47,271 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 01:43:47,272 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 01:43:47,273 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 01:43:47,274 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 01:43:47,275 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 01:43:47,276 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 01:43:47,277 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 01:43:47,277 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 01:43:47,278 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 01:43:47,279 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 01:43:47,280 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 01:43:47,282 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 01:43:47,283 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 01:43:47,285 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 01:43:47,286 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 01:43:47,287 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 01:43:47,288 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 01:43:47,290 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 01:43:47,290 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 01:43:47,290 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 01:43:47,291 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 01:43:47,292 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 01:43:47,293 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 01:43:47,293 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 01:43:47,294 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 01:43:47,294 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 01:43:47,295 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 01:43:47,296 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 01:43:47,296 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 01:43:47,297 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 01:43:47,297 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 01:43:47,297 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 01:43:47,298 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 01:43:47,299 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 01:43:47,300 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-19 01:43:47,322 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 01:43:47,322 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 01:43:47,324 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 01:43:47,324 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 01:43:47,324 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 01:43:47,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 01:43:47,324 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 01:43:47,325 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 01:43:47,325 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 01:43:47,325 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 01:43:47,325 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 01:43:47,325 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 01:43:47,326 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 01:43:47,326 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 01:43:47,326 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 01:43:47,326 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 01:43:47,326 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 01:43:47,326 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 01:43:47,327 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 01:43:47,327 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 01:43:47,327 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 01:43:47,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 01:43:47,327 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 01:43:47,328 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 01:43:47,328 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 01:43:47,328 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 01:43:47,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 01:43:47,328 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 01:43:47,328 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 01:43:47,329 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8; [2020-08-19 01:43:47,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 01:43:47,666 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 01:43:47,670 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 01:43:47,671 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 01:43:47,672 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 01:43:47,673 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product45.cil.c [2020-08-19 01:43:47,754 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7675345bb/44e9e740cdc3474d93e4acfabb9dd911/FLAG75f623d8c [2020-08-19 01:43:48,330 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 01:43:48,330 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product45.cil.c [2020-08-19 01:43:48,343 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7675345bb/44e9e740cdc3474d93e4acfabb9dd911/FLAG75f623d8c [2020-08-19 01:43:48,586 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7675345bb/44e9e740cdc3474d93e4acfabb9dd911 [2020-08-19 01:43:48,594 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 01:43:48,596 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 01:43:48,597 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 01:43:48,597 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 01:43:48,602 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 01:43:48,603 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 01:43:48" (1/1) ... [2020-08-19 01:43:48,606 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@437c5ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:43:48, skipping insertion in model container [2020-08-19 01:43:48,606 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 01:43:48" (1/1) ... [2020-08-19 01:43:48,615 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 01:43:48,682 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 01:43:48,972 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 01:43:49,081 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 01:43:49,166 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 01:43:49,203 INFO L208 MainTranslator]: Completed translation [2020-08-19 01:43:49,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:43:49 WrapperNode [2020-08-19 01:43:49,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 01:43:49,205 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 01:43:49,205 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 01:43:49,205 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 01:43:49,216 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:43:49" (1/1) ... [2020-08-19 01:43:49,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:43:49" (1/1) ... [2020-08-19 01:43:49,234 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:43:49" (1/1) ... [2020-08-19 01:43:49,235 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:43:49" (1/1) ... [2020-08-19 01:43:49,277 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:43:49" (1/1) ... [2020-08-19 01:43:49,299 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:43:49" (1/1) ... [2020-08-19 01:43:49,310 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:43:49" (1/1) ... [2020-08-19 01:43:49,324 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 01:43:49,324 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 01:43:49,325 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 01:43:49,325 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 01:43:49,326 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:43:49" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 01:43:49,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 01:43:49,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 01:43:49,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-19 01:43:49,394 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-19 01:43:49,394 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-19 01:43:49,394 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-19 01:43:49,394 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-19 01:43:49,394 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-19 01:43:49,395 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-19 01:43:49,395 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-19 01:43:49,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-19 01:43:49,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-08-19 01:43:49,395 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-19 01:43:49,396 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-19 01:43:49,396 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-19 01:43:49,396 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-19 01:43:49,396 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 01:43:49,396 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-19 01:43:49,396 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-19 01:43:49,396 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-19 01:43:49,397 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-19 01:43:49,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-19 01:43:49,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-19 01:43:49,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-19 01:43:49,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-19 01:43:49,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-19 01:43:49,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-19 01:43:49,398 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-19 01:43:49,398 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-19 01:43:49,398 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-19 01:43:49,398 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-08-19 01:43:49,398 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-19 01:43:49,398 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-08-19 01:43:49,399 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-19 01:43:49,399 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-19 01:43:49,399 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-19 01:43:49,399 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-19 01:43:49,399 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-19 01:43:49,399 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-19 01:43:49,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 01:43:49,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 01:43:49,400 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-19 01:43:49,400 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-19 01:43:49,400 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-19 01:43:49,400 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-19 01:43:49,400 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-19 01:43:49,401 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-19 01:43:49,401 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-19 01:43:49,401 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-19 01:43:49,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 01:43:49,401 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-19 01:43:49,401 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-19 01:43:49,401 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-08-19 01:43:49,402 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-19 01:43:49,402 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-19 01:43:49,402 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-19 01:43:49,402 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-19 01:43:49,402 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-19 01:43:49,402 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-19 01:43:49,402 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-19 01:43:49,403 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-19 01:43:49,403 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-19 01:43:49,403 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-19 01:43:49,403 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 01:43:49,403 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-19 01:43:49,403 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-19 01:43:49,403 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-19 01:43:49,404 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-19 01:43:49,404 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-19 01:43:49,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-19 01:43:49,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-19 01:43:49,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 01:43:49,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-19 01:43:49,404 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-19 01:43:49,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 01:43:49,405 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-19 01:43:49,405 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-19 01:43:49,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 01:43:49,405 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-19 01:43:49,405 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-19 01:43:49,405 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-19 01:43:49,406 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-19 01:43:49,406 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-19 01:43:49,406 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-19 01:43:49,406 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-19 01:43:49,406 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-19 01:43:49,406 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-08-19 01:43:49,406 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-19 01:43:49,407 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-08-19 01:43:49,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 01:43:49,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-19 01:43:49,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 01:43:50,628 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 01:43:50,628 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-19 01:43:50,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 01:43:50 BoogieIcfgContainer [2020-08-19 01:43:50,635 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 01:43:50,636 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 01:43:50,636 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 01:43:50,639 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 01:43:50,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 01:43:48" (1/3) ... [2020-08-19 01:43:50,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@791fda7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 01:43:50, skipping insertion in model container [2020-08-19 01:43:50,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:43:49" (2/3) ... [2020-08-19 01:43:50,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@791fda7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 01:43:50, skipping insertion in model container [2020-08-19 01:43:50,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 01:43:50" (3/3) ... [2020-08-19 01:43:50,643 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product45.cil.c [2020-08-19 01:43:50,654 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 01:43:50,661 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 01:43:50,671 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 01:43:50,693 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 01:43:50,693 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 01:43:50,693 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 01:43:50,693 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 01:43:50,694 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 01:43:50,694 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 01:43:50,694 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 01:43:50,694 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 01:43:50,717 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states. [2020-08-19 01:43:50,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-08-19 01:43:50,728 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:43:50,729 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 01:43:50,729 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:43:50,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:43:50,736 INFO L82 PathProgramCache]: Analyzing trace with hash 1763081390, now seen corresponding path program 1 times [2020-08-19 01:43:50,745 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:43:50,746 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [136547357] [2020-08-19 01:43:50,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:43:50,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:43:51,378 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 01:43:51,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:43:51,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:43:51,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 01:43:51,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:43:51,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 01:43:51,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:43:51,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 01:43:51,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:43:51,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 01:43:51,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:43:51,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 01:43:51,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:43:51,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 01:43:51,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:43:51,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 01:43:51,478 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [136547357] [2020-08-19 01:43:51,480 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 01:43:51,480 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-19 01:43:51,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352230586] [2020-08-19 01:43:51,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-19 01:43:51,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:43:51,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-19 01:43:51,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-19 01:43:51,507 INFO L87 Difference]: Start difference. First operand 173 states. Second operand 3 states. [2020-08-19 01:43:52,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:43:52,721 INFO L93 Difference]: Finished difference Result 303 states and 398 transitions. [2020-08-19 01:43:52,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-19 01:43:52,723 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-08-19 01:43:52,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:43:52,738 INFO L225 Difference]: With dead ends: 303 [2020-08-19 01:43:52,739 INFO L226 Difference]: Without dead ends: 164 [2020-08-19 01:43:52,744 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-19 01:43:52,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-08-19 01:43:52,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 130. [2020-08-19 01:43:52,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-08-19 01:43:52,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 154 transitions. [2020-08-19 01:43:52,869 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 154 transitions. Word has length 46 [2020-08-19 01:43:52,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:43:52,871 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 154 transitions. [2020-08-19 01:43:52,871 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-19 01:43:52,872 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 154 transitions. [2020-08-19 01:43:52,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-08-19 01:43:52,879 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:43:52,879 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 01:43:52,880 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 01:43:52,880 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:43:52,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:43:52,880 INFO L82 PathProgramCache]: Analyzing trace with hash 1948835968, now seen corresponding path program 1 times [2020-08-19 01:43:52,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:43:52,881 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1164052157] [2020-08-19 01:43:52,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:43:52,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:43:53,233 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 01:43:53,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:43:53,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:43:53,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 01:43:53,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:43:53,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 01:43:53,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:43:53,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 01:43:53,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:43:53,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 01:43:53,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:43:53,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-19 01:43:53,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:43:53,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-19 01:43:53,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:43:53,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 01:43:53,277 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1164052157] [2020-08-19 01:43:53,278 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 01:43:53,278 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-19 01:43:53,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626349302] [2020-08-19 01:43:53,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-19 01:43:53,280 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:43:53,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-19 01:43:53,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-19 01:43:53,281 INFO L87 Difference]: Start difference. First operand 130 states and 154 transitions. Second operand 4 states. [2020-08-19 01:43:53,687 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 01:43:54,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:43:54,555 INFO L93 Difference]: Finished difference Result 236 states and 289 transitions. [2020-08-19 01:43:54,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-19 01:43:54,558 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-08-19 01:43:54,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:43:54,564 INFO L225 Difference]: With dead ends: 236 [2020-08-19 01:43:54,564 INFO L226 Difference]: Without dead ends: 148 [2020-08-19 01:43:54,568 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-19 01:43:54,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-08-19 01:43:54,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 121. [2020-08-19 01:43:54,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-08-19 01:43:54,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 142 transitions. [2020-08-19 01:43:54,610 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 142 transitions. Word has length 47 [2020-08-19 01:43:54,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:43:54,611 INFO L479 AbstractCegarLoop]: Abstraction has 121 states and 142 transitions. [2020-08-19 01:43:54,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-19 01:43:54,611 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 142 transitions. [2020-08-19 01:43:54,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-08-19 01:43:54,613 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:43:54,613 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 01:43:54,614 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 01:43:54,614 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:43:54,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:43:54,614 INFO L82 PathProgramCache]: Analyzing trace with hash -970175768, now seen corresponding path program 1 times [2020-08-19 01:43:54,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:43:54,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [459502223] [2020-08-19 01:43:54,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:43:54,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:43:54,984 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 01:43:54,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:43:55,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:43:55,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 01:43:55,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:43:55,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 01:43:55,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:43:55,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 01:43:55,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:43:55,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 01:43:55,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:43:55,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 01:43:55,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:43:55,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-19 01:43:55,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:43:55,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 01:43:55,068 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [459502223] [2020-08-19 01:43:55,068 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 01:43:55,068 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-19 01:43:55,069 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571024359] [2020-08-19 01:43:55,069 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-19 01:43:55,070 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:43:55,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-19 01:43:55,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-19 01:43:55,070 INFO L87 Difference]: Start difference. First operand 121 states and 142 transitions. Second operand 8 states. [2020-08-19 01:43:55,448 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 01:43:55,735 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:43:55,992 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:43:56,214 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:43:57,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:43:57,359 INFO L93 Difference]: Finished difference Result 245 states and 303 transitions. [2020-08-19 01:43:57,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-19 01:43:57,360 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-08-19 01:43:57,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:43:57,363 INFO L225 Difference]: With dead ends: 245 [2020-08-19 01:43:57,363 INFO L226 Difference]: Without dead ends: 148 [2020-08-19 01:43:57,364 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-19 01:43:57,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-08-19 01:43:57,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 121. [2020-08-19 01:43:57,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-08-19 01:43:57,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 141 transitions. [2020-08-19 01:43:57,407 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 141 transitions. Word has length 51 [2020-08-19 01:43:57,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:43:57,407 INFO L479 AbstractCegarLoop]: Abstraction has 121 states and 141 transitions. [2020-08-19 01:43:57,407 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-19 01:43:57,408 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 141 transitions. [2020-08-19 01:43:57,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-08-19 01:43:57,409 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:43:57,410 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 01:43:57,410 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 01:43:57,410 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:43:57,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:43:57,411 INFO L82 PathProgramCache]: Analyzing trace with hash 137025886, now seen corresponding path program 1 times [2020-08-19 01:43:57,411 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:43:57,411 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [706631989] [2020-08-19 01:43:57,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:43:57,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:43:57,715 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 01:43:57,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:43:57,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:43:57,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 01:43:57,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:43:57,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 01:43:57,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:43:57,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 01:43:57,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:43:57,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 01:43:57,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:43:57,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-08-19 01:43:57,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:43:57,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:43:57,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:43:57,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:43:57,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:43:57,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-19 01:43:57,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:43:57,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-19 01:43:57,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:43:57,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 01:43:57,803 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [706631989] [2020-08-19 01:43:57,803 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 01:43:57,803 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-19 01:43:57,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673011035] [2020-08-19 01:43:57,804 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 01:43:57,805 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:43:57,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 01:43:57,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-19 01:43:57,805 INFO L87 Difference]: Start difference. First operand 121 states and 141 transitions. Second operand 6 states. [2020-08-19 01:43:58,156 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 01:43:59,256 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 01:44:00,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:44:00,001 INFO L93 Difference]: Finished difference Result 342 states and 424 transitions. [2020-08-19 01:44:00,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-19 01:44:00,002 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2020-08-19 01:44:00,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:44:00,007 INFO L225 Difference]: With dead ends: 342 [2020-08-19 01:44:00,007 INFO L226 Difference]: Without dead ends: 245 [2020-08-19 01:44:00,009 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-08-19 01:44:00,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2020-08-19 01:44:00,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 204. [2020-08-19 01:44:00,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2020-08-19 01:44:00,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 233 transitions. [2020-08-19 01:44:00,055 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 233 transitions. Word has length 64 [2020-08-19 01:44:00,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:44:00,056 INFO L479 AbstractCegarLoop]: Abstraction has 204 states and 233 transitions. [2020-08-19 01:44:00,056 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 01:44:00,056 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 233 transitions. [2020-08-19 01:44:00,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-08-19 01:44:00,058 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:44:00,058 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 01:44:00,058 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 01:44:00,058 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:44:00,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:44:00,059 INFO L82 PathProgramCache]: Analyzing trace with hash -274572639, now seen corresponding path program 1 times [2020-08-19 01:44:00,059 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:44:00,059 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1034563434] [2020-08-19 01:44:00,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:44:00,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:00,365 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 01:44:00,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:44:00,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:00,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 01:44:00,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:00,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 01:44:00,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:00,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 01:44:00,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:00,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 01:44:00,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:00,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-08-19 01:44:00,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:00,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:44:00,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:00,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:44:00,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:00,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:44:00,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:00,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 01:44:00,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:00,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-19 01:44:00,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:00,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-19 01:44:00,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:00,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 01:44:00,548 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1034563434] [2020-08-19 01:44:00,548 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 01:44:00,548 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-19 01:44:00,548 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693842086] [2020-08-19 01:44:00,549 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-19 01:44:00,549 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:44:00,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-19 01:44:00,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-19 01:44:00,550 INFO L87 Difference]: Start difference. First operand 204 states and 233 transitions. Second operand 8 states. [2020-08-19 01:44:00,944 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 01:44:01,904 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:44:02,245 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 01:44:02,777 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:44:03,014 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:44:03,286 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 01:44:04,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:44:04,244 INFO L93 Difference]: Finished difference Result 607 states and 749 transitions. [2020-08-19 01:44:04,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-19 01:44:04,244 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 78 [2020-08-19 01:44:04,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:44:04,248 INFO L225 Difference]: With dead ends: 607 [2020-08-19 01:44:04,249 INFO L226 Difference]: Without dead ends: 427 [2020-08-19 01:44:04,250 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-08-19 01:44:04,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-08-19 01:44:04,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 363. [2020-08-19 01:44:04,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2020-08-19 01:44:04,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 416 transitions. [2020-08-19 01:44:04,334 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 416 transitions. Word has length 78 [2020-08-19 01:44:04,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:44:04,335 INFO L479 AbstractCegarLoop]: Abstraction has 363 states and 416 transitions. [2020-08-19 01:44:04,335 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-19 01:44:04,335 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 416 transitions. [2020-08-19 01:44:04,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-08-19 01:44:04,337 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:44:04,337 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 01:44:04,337 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-19 01:44:04,338 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:44:04,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:44:04,338 INFO L82 PathProgramCache]: Analyzing trace with hash 1223934493, now seen corresponding path program 1 times [2020-08-19 01:44:04,338 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:44:04,339 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [20303267] [2020-08-19 01:44:04,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:44:04,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:04,653 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 01:44:04,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:44:04,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:04,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 01:44:04,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:04,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 01:44:04,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:04,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 01:44:04,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:04,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 01:44:04,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:04,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-19 01:44:04,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:04,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-19 01:44:04,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:04,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:44:04,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:04,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:44:04,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:04,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:44:04,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:04,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 01:44:04,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:04,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-19 01:44:04,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:04,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-19 01:44:04,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:04,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 01:44:04,760 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [20303267] [2020-08-19 01:44:04,761 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 01:44:04,761 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 01:44:04,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667677946] [2020-08-19 01:44:04,764 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 01:44:04,764 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:44:04,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 01:44:04,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-19 01:44:04,765 INFO L87 Difference]: Start difference. First operand 363 states and 416 transitions. Second operand 9 states. [2020-08-19 01:44:05,208 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 01:44:06,346 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 01:44:06,633 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 01:44:07,580 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:44:07,841 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:44:08,064 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:44:08,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:44:08,344 INFO L93 Difference]: Finished difference Result 466 states and 584 transitions. [2020-08-19 01:44:08,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-19 01:44:08,345 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 82 [2020-08-19 01:44:08,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:44:08,350 INFO L225 Difference]: With dead ends: 466 [2020-08-19 01:44:08,350 INFO L226 Difference]: Without dead ends: 463 [2020-08-19 01:44:08,351 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-08-19 01:44:08,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2020-08-19 01:44:08,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 363. [2020-08-19 01:44:08,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2020-08-19 01:44:08,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 415 transitions. [2020-08-19 01:44:08,425 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 415 transitions. Word has length 82 [2020-08-19 01:44:08,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:44:08,426 INFO L479 AbstractCegarLoop]: Abstraction has 363 states and 415 transitions. [2020-08-19 01:44:08,426 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 01:44:08,426 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 415 transitions. [2020-08-19 01:44:08,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-08-19 01:44:08,428 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:44:08,428 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] [2020-08-19 01:44:08,429 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-19 01:44:08,429 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:44:08,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:44:08,429 INFO L82 PathProgramCache]: Analyzing trace with hash -1913348729, now seen corresponding path program 1 times [2020-08-19 01:44:08,430 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:44:08,430 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [89813096] [2020-08-19 01:44:08,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:44:08,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:08,703 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 01:44:08,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:44:08,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:08,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 01:44:08,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:08,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 01:44:08,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:08,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 01:44:08,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:08,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 01:44:08,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:08,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-19 01:44:08,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:08,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-19 01:44:08,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:08,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:44:08,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:08,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:44:08,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:08,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:44:08,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:08,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 01:44:08,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:08,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:44:08,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:08,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:44:08,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:08,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 01:44:08,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:08,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-19 01:44:08,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:08,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-19 01:44:08,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:08,877 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 01:44:08,877 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [89813096] [2020-08-19 01:44:08,878 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 01:44:08,878 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 01:44:08,878 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669724846] [2020-08-19 01:44:08,879 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 01:44:08,879 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:44:08,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 01:44:08,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-19 01:44:08,880 INFO L87 Difference]: Start difference. First operand 363 states and 415 transitions. Second operand 9 states. [2020-08-19 01:44:09,760 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:44:09,999 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 01:44:10,236 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 01:44:10,469 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 01:44:11,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:44:11,503 INFO L93 Difference]: Finished difference Result 810 states and 1008 transitions. [2020-08-19 01:44:11,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-19 01:44:11,503 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 98 [2020-08-19 01:44:11,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:44:11,507 INFO L225 Difference]: With dead ends: 810 [2020-08-19 01:44:11,507 INFO L226 Difference]: Without dead ends: 471 [2020-08-19 01:44:11,508 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-08-19 01:44:11,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2020-08-19 01:44:11,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 373. [2020-08-19 01:44:11,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2020-08-19 01:44:11,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 425 transitions. [2020-08-19 01:44:11,590 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 425 transitions. Word has length 98 [2020-08-19 01:44:11,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:44:11,591 INFO L479 AbstractCegarLoop]: Abstraction has 373 states and 425 transitions. [2020-08-19 01:44:11,591 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 01:44:11,591 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 425 transitions. [2020-08-19 01:44:11,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-08-19 01:44:11,593 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:44:11,593 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] [2020-08-19 01:44:11,594 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-19 01:44:11,594 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:44:11,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:44:11,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1019862391, now seen corresponding path program 1 times [2020-08-19 01:44:11,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:44:11,595 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [534414125] [2020-08-19 01:44:11,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:44:11,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:11,855 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 01:44:11,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:44:11,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:11,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 01:44:11,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:11,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 01:44:11,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:11,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 01:44:11,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:11,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 01:44:11,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:11,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-19 01:44:11,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:11,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-19 01:44:11,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:11,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:44:11,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:11,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:44:11,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:11,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:44:11,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:11,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 01:44:11,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:11,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:44:11,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:11,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:44:11,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:11,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 01:44:11,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:11,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-19 01:44:11,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:11,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-19 01:44:11,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:11,979 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 01:44:11,979 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [534414125] [2020-08-19 01:44:11,979 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 01:44:11,980 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-19 01:44:11,980 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003742936] [2020-08-19 01:44:11,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-19 01:44:11,981 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:44:11,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-19 01:44:11,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-08-19 01:44:11,981 INFO L87 Difference]: Start difference. First operand 373 states and 425 transitions. Second operand 11 states. [2020-08-19 01:44:12,426 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 01:44:12,658 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 01:44:12,879 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 01:44:13,437 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 01:44:13,676 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 01:44:13,920 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 01:44:15,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:44:15,039 INFO L93 Difference]: Finished difference Result 830 states and 1030 transitions. [2020-08-19 01:44:15,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-19 01:44:15,043 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 98 [2020-08-19 01:44:15,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:44:15,047 INFO L225 Difference]: With dead ends: 830 [2020-08-19 01:44:15,047 INFO L226 Difference]: Without dead ends: 481 [2020-08-19 01:44:15,049 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-08-19 01:44:15,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2020-08-19 01:44:15,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 381. [2020-08-19 01:44:15,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2020-08-19 01:44:15,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 433 transitions. [2020-08-19 01:44:15,117 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 433 transitions. Word has length 98 [2020-08-19 01:44:15,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:44:15,117 INFO L479 AbstractCegarLoop]: Abstraction has 381 states and 433 transitions. [2020-08-19 01:44:15,117 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-19 01:44:15,117 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 433 transitions. [2020-08-19 01:44:15,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-08-19 01:44:15,119 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:44:15,119 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] [2020-08-19 01:44:15,119 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-19 01:44:15,120 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:44:15,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:44:15,120 INFO L82 PathProgramCache]: Analyzing trace with hash -1027621750, now seen corresponding path program 1 times [2020-08-19 01:44:15,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:44:15,121 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1746529136] [2020-08-19 01:44:15,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:44:15,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:15,384 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 01:44:15,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:44:15,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:15,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 01:44:15,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:15,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 01:44:15,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:15,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 01:44:15,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:15,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 01:44:15,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:15,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-19 01:44:15,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:15,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-19 01:44:15,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:15,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:44:15,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:15,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:44:15,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:15,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:44:15,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:15,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 01:44:15,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:15,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:44:15,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:15,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:44:15,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:15,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 01:44:15,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:15,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-19 01:44:15,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:15,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-19 01:44:15,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:15,564 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 01:44:15,565 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1746529136] [2020-08-19 01:44:15,565 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 01:44:15,565 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-19 01:44:15,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432145290] [2020-08-19 01:44:15,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-19 01:44:15,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:44:15,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-19 01:44:15,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-19 01:44:15,567 INFO L87 Difference]: Start difference. First operand 381 states and 433 transitions. Second operand 7 states. [2020-08-19 01:44:16,180 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 01:44:16,676 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 01:44:18,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:44:18,689 INFO L93 Difference]: Finished difference Result 1133 states and 1452 transitions. [2020-08-19 01:44:18,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-19 01:44:18,690 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 98 [2020-08-19 01:44:18,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:44:18,696 INFO L225 Difference]: With dead ends: 1133 [2020-08-19 01:44:18,696 INFO L226 Difference]: Without dead ends: 776 [2020-08-19 01:44:18,698 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-08-19 01:44:18,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2020-08-19 01:44:18,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 677. [2020-08-19 01:44:18,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 677 states. [2020-08-19 01:44:18,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 803 transitions. [2020-08-19 01:44:18,880 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 803 transitions. Word has length 98 [2020-08-19 01:44:18,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:44:18,880 INFO L479 AbstractCegarLoop]: Abstraction has 677 states and 803 transitions. [2020-08-19 01:44:18,880 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-19 01:44:18,880 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 803 transitions. [2020-08-19 01:44:18,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-08-19 01:44:18,883 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:44:18,883 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] [2020-08-19 01:44:18,884 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-19 01:44:18,884 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:44:18,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:44:18,885 INFO L82 PathProgramCache]: Analyzing trace with hash 1865521988, now seen corresponding path program 1 times [2020-08-19 01:44:18,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:44:18,885 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1498394376] [2020-08-19 01:44:18,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:44:18,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:19,160 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 01:44:19,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:44:19,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:19,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 01:44:19,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:19,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 01:44:19,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:19,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 01:44:19,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:19,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 01:44:19,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:19,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-19 01:44:19,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:19,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-19 01:44:19,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:19,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-19 01:44:19,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:19,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:44:19,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:19,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:44:19,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:19,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:44:19,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:19,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 01:44:19,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:19,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:44:19,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:19,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:44:19,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:19,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 01:44:19,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:19,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-08-19 01:44:19,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:19,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-19 01:44:19,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:19,439 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-19 01:44:19,440 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1498394376] [2020-08-19 01:44:19,440 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 01:44:19,440 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-08-19 01:44:19,440 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571256125] [2020-08-19 01:44:19,441 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-08-19 01:44:19,441 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:44:19,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-08-19 01:44:19,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2020-08-19 01:44:19,442 INFO L87 Difference]: Start difference. First operand 677 states and 803 transitions. Second operand 17 states. [2020-08-19 01:44:19,835 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 01:44:20,144 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 01:44:20,385 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 01:44:20,618 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 01:44:21,170 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 01:44:22,056 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:44:22,369 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:44:22,636 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:44:22,919 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:44:23,231 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:44:23,484 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:44:24,004 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-08-19 01:44:24,522 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-08-19 01:44:26,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:44:26,336 INFO L93 Difference]: Finished difference Result 1398 states and 1726 transitions. [2020-08-19 01:44:26,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-08-19 01:44:26,336 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 102 [2020-08-19 01:44:26,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:44:26,342 INFO L225 Difference]: With dead ends: 1398 [2020-08-19 01:44:26,342 INFO L226 Difference]: Without dead ends: 745 [2020-08-19 01:44:26,345 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=304, Invalid=1256, Unknown=0, NotChecked=0, Total=1560 [2020-08-19 01:44:26,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2020-08-19 01:44:26,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 649. [2020-08-19 01:44:26,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 649 states. [2020-08-19 01:44:26,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 757 transitions. [2020-08-19 01:44:26,467 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 757 transitions. Word has length 102 [2020-08-19 01:44:26,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:44:26,476 INFO L479 AbstractCegarLoop]: Abstraction has 649 states and 757 transitions. [2020-08-19 01:44:26,476 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-08-19 01:44:26,476 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 757 transitions. [2020-08-19 01:44:26,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-08-19 01:44:26,480 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:44:26,481 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] [2020-08-19 01:44:26,481 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-19 01:44:26,481 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:44:26,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:44:26,482 INFO L82 PathProgramCache]: Analyzing trace with hash -1153565628, now seen corresponding path program 1 times [2020-08-19 01:44:26,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:44:26,482 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [335674202] [2020-08-19 01:44:26,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:44:26,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:26,780 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 01:44:26,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 01:44:26,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:26,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 01:44:26,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:26,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 01:44:26,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:26,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 01:44:26,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:26,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 01:44:26,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:26,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-19 01:44:26,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:26,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-19 01:44:26,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:26,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:44:26,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:26,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:44:26,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:26,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:44:26,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:26,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:44:26,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:26,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 01:44:26,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:26,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:44:26,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:26,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:44:26,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:26,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 01:44:26,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:26,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-19 01:44:26,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:26,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:44:26,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:26,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-19 01:44:26,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:26,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-08-19 01:44:26,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:26,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-08-19 01:44:26,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:27,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:44:27,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:27,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 01:44:27,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:27,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 01:44:27,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:27,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 01:44:27,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:27,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-19 01:44:27,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:27,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-08-19 01:44:27,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 01:44:27,176 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-08-19 01:44:27,176 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [335674202] [2020-08-19 01:44:27,177 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 01:44:27,177 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-08-19 01:44:27,177 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708899991] [2020-08-19 01:44:27,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-08-19 01:44:27,179 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 01:44:27,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-08-19 01:44:27,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2020-08-19 01:44:27,181 INFO L87 Difference]: Start difference. First operand 649 states and 757 transitions. Second operand 18 states. [2020-08-19 01:44:28,135 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 01:44:28,522 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 01:44:28,768 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 01:44:29,024 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 01:44:29,635 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-19 01:44:30,558 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:44:30,890 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:44:31,162 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:44:31,438 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:44:31,756 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:44:32,019 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:44:33,174 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:44:33,441 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:44:33,720 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:44:33,975 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-19 01:44:34,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 01:44:34,938 INFO L93 Difference]: Finished difference Result 1181 states and 1457 transitions. [2020-08-19 01:44:34,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-08-19 01:44:34,939 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 153 [2020-08-19 01:44:34,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 01:44:34,940 INFO L225 Difference]: With dead ends: 1181 [2020-08-19 01:44:34,940 INFO L226 Difference]: Without dead ends: 0 [2020-08-19 01:44:34,948 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=338, Invalid=1554, Unknown=0, NotChecked=0, Total=1892 [2020-08-19 01:44:34,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-19 01:44:34,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-19 01:44:34,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-19 01:44:34,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-19 01:44:34,949 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 153 [2020-08-19 01:44:34,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 01:44:34,949 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-19 01:44:34,949 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-08-19 01:44:34,950 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-19 01:44:34,950 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-19 01:44:34,950 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-19 01:44:34,952 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-19 01:44:37,579 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 294 DAG size of output: 242 [2020-08-19 01:44:39,073 WARN L193 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 294 DAG size of output: 242 [2020-08-19 01:44:39,810 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 296 DAG size of output: 244 [2020-08-19 01:44:40,450 WARN L193 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 294 DAG size of output: 242 [2020-08-19 01:44:41,471 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 18 [2020-08-19 01:44:42,135 WARN L193 SmtUtils]: Spent 657.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 16 [2020-08-19 01:44:42,301 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 1 [2020-08-19 01:44:42,482 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 22 [2020-08-19 01:44:42,683 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 22 [2020-08-19 01:44:42,854 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 1 [2020-08-19 01:44:43,042 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 1 [2020-08-19 01:44:43,214 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 24 [2020-08-19 01:44:43,400 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 24 [2020-08-19 01:44:43,612 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-19 01:44:43,778 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 1 [2020-08-19 01:44:44,296 WARN L193 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 20 [2020-08-19 01:44:44,481 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 1 [2020-08-19 01:44:44,973 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 19 [2020-08-19 01:44:45,141 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 1 [2020-08-19 01:44:45,676 WARN L193 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 20 [2020-08-19 01:44:46,164 WARN L193 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 22 [2020-08-19 01:44:46,646 WARN L193 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 25 [2020-08-19 01:44:47,144 WARN L193 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 19 [2020-08-19 01:44:47,364 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 9 [2020-08-19 01:44:47,571 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 22 [2020-08-19 01:44:47,765 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 19