/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=SHALLOWEST -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product45.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 20:12:45,380 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 20:12:45,384 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 20:12:45,419 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 20:12:45,420 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 20:12:45,428 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 20:12:45,430 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 20:12:45,433 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 20:12:45,435 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 20:12:45,438 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 20:12:45,439 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 20:12:45,439 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 20:12:45,440 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 20:12:45,442 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 20:12:45,445 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 20:12:45,446 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 20:12:45,448 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 20:12:45,448 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 20:12:45,450 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 20:12:45,457 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 20:12:45,459 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 20:12:45,460 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 20:12:45,461 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 20:12:45,461 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 20:12:45,473 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 20:12:45,473 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 20:12:45,473 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 20:12:45,478 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 20:12:45,479 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 20:12:45,480 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 20:12:45,480 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 20:12:45,480 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 20:12:45,481 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 20:12:45,486 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 20:12:45,487 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 20:12:45,487 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 20:12:45,488 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 20:12:45,488 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 20:12:45,488 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 20:12:45,491 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 20:12:45,491 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 20:12:45,492 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 [2020-08-18 20:12:45,528 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 20:12:45,528 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 20:12:45,530 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 20:12:45,530 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 20:12:45,530 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 20:12:45,530 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 20:12:45,530 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 20:12:45,531 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 20:12:45,531 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 20:12:45,531 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 20:12:45,532 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 20:12:45,532 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 20:12:45,532 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 20:12:45,533 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 20:12:45,533 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 20:12:45,533 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 20:12:45,533 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 20:12:45,534 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 20:12:45,534 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 20:12:45,534 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 20:12:45,534 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 20:12:45,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 20:12:45,535 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 20:12:45,535 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 20:12:45,535 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 20:12:45,535 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 20:12:45,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 20:12:45,536 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 20:12:45,536 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 20:12:45,536 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=SHALLOWEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SHALLOWEST; [2020-08-18 20:12:45,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 20:12:45,818 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 20:12:45,823 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 20:12:45,824 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 20:12:45,827 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 20:12:45,827 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product45.cil.c [2020-08-18 20:12:45,887 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/84825d4dd/1c9c5efa26d94dac8c66ae059eb29d16/FLAG1e90d7e30 [2020-08-18 20:12:46,446 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 20:12:46,449 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product45.cil.c [2020-08-18 20:12:46,460 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/84825d4dd/1c9c5efa26d94dac8c66ae059eb29d16/FLAG1e90d7e30 [2020-08-18 20:12:46,689 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/84825d4dd/1c9c5efa26d94dac8c66ae059eb29d16 [2020-08-18 20:12:46,698 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 20:12:46,700 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 20:12:46,701 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 20:12:46,701 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 20:12:46,705 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 20:12:46,706 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 08:12:46" (1/1) ... [2020-08-18 20:12:46,708 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41ca0b43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:12:46, skipping insertion in model container [2020-08-18 20:12:46,708 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 08:12:46" (1/1) ... [2020-08-18 20:12:46,716 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 20:12:46,769 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 20:12:47,159 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 20:12:47,180 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 20:12:47,255 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 20:12:47,299 INFO L208 MainTranslator]: Completed translation [2020-08-18 20:12:47,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:12:47 WrapperNode [2020-08-18 20:12:47,300 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 20:12:47,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 20:12:47,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 20:12:47,301 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 20:12:47,314 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:12:47" (1/1) ... [2020-08-18 20:12:47,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:12:47" (1/1) ... [2020-08-18 20:12:47,342 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:12:47" (1/1) ... [2020-08-18 20:12:47,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:12:47" (1/1) ... [2020-08-18 20:12:47,378 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:12:47" (1/1) ... [2020-08-18 20:12:47,388 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:12:47" (1/1) ... [2020-08-18 20:12:47,393 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:12:47" (1/1) ... [2020-08-18 20:12:47,400 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 20:12:47,400 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 20:12:47,401 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 20:12:47,401 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 20:12:47,401 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:12:47" (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 [2020-08-18 20:12:47,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 20:12:47,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 20:12:47,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-18 20:12:47,454 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-18 20:12:47,454 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-18 20:12:47,455 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-18 20:12:47,455 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-18 20:12:47,455 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-18 20:12:47,455 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-18 20:12:47,455 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-18 20:12:47,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-18 20:12:47,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-18 20:12:47,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-18 20:12:47,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-18 20:12:47,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-18 20:12:47,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-18 20:12:47,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-18 20:12:47,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-08-18 20:12:47,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-08-18 20:12:47,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-08-18 20:12:47,457 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-18 20:12:47,457 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-18 20:12:47,457 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-08-18 20:12:47,457 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-18 20:12:47,457 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-08-18 20:12:47,457 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-18 20:12:47,458 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-18 20:12:47,458 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-18 20:12:47,458 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-18 20:12:47,458 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-18 20:12:47,458 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-18 20:12:47,458 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-18 20:12:47,459 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-18 20:12:47,459 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-18 20:12:47,459 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-18 20:12:47,459 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-18 20:12:47,459 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-18 20:12:47,459 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-18 20:12:47,460 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-18 20:12:47,460 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-18 20:12:47,460 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 20:12:47,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 20:12:47,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 20:12:47,460 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-18 20:12:47,460 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-18 20:12:47,460 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-18 20:12:47,461 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-18 20:12:47,461 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-18 20:12:47,461 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-18 20:12:47,461 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-18 20:12:47,461 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-18 20:12:47,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 20:12:47,461 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-18 20:12:47,462 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-18 20:12:47,462 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-18 20:12:47,462 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-18 20:12:47,462 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-18 20:12:47,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-18 20:12:47,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-18 20:12:47,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 20:12:47,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-18 20:12:47,463 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-18 20:12:47,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 20:12:47,463 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-18 20:12:47,463 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-18 20:12:47,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 20:12:47,464 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-18 20:12:47,464 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-18 20:12:47,464 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-18 20:12:47,464 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-18 20:12:47,464 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-08-18 20:12:47,464 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-08-18 20:12:47,465 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-08-18 20:12:47,465 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-18 20:12:47,465 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-18 20:12:47,465 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-18 20:12:47,465 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-18 20:12:47,465 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-18 20:12:47,465 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-18 20:12:47,466 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-18 20:12:47,466 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-08-18 20:12:47,466 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-18 20:12:47,466 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-08-18 20:12:47,466 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-18 20:12:47,466 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-18 20:12:47,466 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-18 20:12:47,467 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-18 20:12:47,467 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-18 20:12:47,467 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-18 20:12:47,467 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-18 20:12:47,467 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-18 20:12:47,467 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-18 20:12:47,467 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 20:12:47,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 20:12:47,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-18 20:12:47,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 20:12:48,492 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 20:12:48,493 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-18 20:12:48,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 08:12:48 BoogieIcfgContainer [2020-08-18 20:12:48,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 20:12:48,500 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 20:12:48,500 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 20:12:48,503 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 20:12:48,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 08:12:46" (1/3) ... [2020-08-18 20:12:48,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60d7e7ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 08:12:48, skipping insertion in model container [2020-08-18 20:12:48,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:12:47" (2/3) ... [2020-08-18 20:12:48,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60d7e7ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 08:12:48, skipping insertion in model container [2020-08-18 20:12:48,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 08:12:48" (3/3) ... [2020-08-18 20:12:48,507 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product45.cil.c [2020-08-18 20:12:48,517 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 20:12:48,524 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 20:12:48,538 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 20:12:48,562 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 20:12:48,562 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 20:12:48,562 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 20:12:48,562 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 20:12:48,563 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 20:12:48,563 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 20:12:48,563 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 20:12:48,563 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 20:12:48,585 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states. [2020-08-18 20:12:48,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-08-18 20:12:48,595 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:12:48,596 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:12:48,597 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:12:48,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:12:48,603 INFO L82 PathProgramCache]: Analyzing trace with hash -587014934, now seen corresponding path program 1 times [2020-08-18 20:12:48,611 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:12:48,612 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1688699604] [2020-08-18 20:12:48,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:12:48,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:49,207 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 20:12:49,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:12:49,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:49,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 20:12:49,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:49,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 20:12:49,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:49,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 20:12:49,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:49,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 20:12:49,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:49,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 20:12:49,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:49,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 20:12:49,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:49,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:12:49,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:49,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-18 20:12:49,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:49,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-18 20:12:49,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:49,372 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-18 20:12:49,374 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1688699604] [2020-08-18 20:12:49,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 20:12:49,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 20:12:49,378 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223951000] [2020-08-18 20:12:49,386 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-18 20:12:49,387 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:12:49,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-18 20:12:49,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-18 20:12:49,410 INFO L87 Difference]: Start difference. First operand 186 states. Second operand 4 states. [2020-08-18 20:12:50,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:12:50,451 INFO L93 Difference]: Finished difference Result 315 states and 403 transitions. [2020-08-18 20:12:50,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-18 20:12:50,454 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-08-18 20:12:50,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:12:50,471 INFO L225 Difference]: With dead ends: 315 [2020-08-18 20:12:50,471 INFO L226 Difference]: Without dead ends: 173 [2020-08-18 20:12:50,482 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-18 20:12:50,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2020-08-18 20:12:50,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 143. [2020-08-18 20:12:50,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-08-18 20:12:50,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 168 transitions. [2020-08-18 20:12:50,628 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 168 transitions. Word has length 59 [2020-08-18 20:12:50,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:12:50,629 INFO L479 AbstractCegarLoop]: Abstraction has 143 states and 168 transitions. [2020-08-18 20:12:50,629 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-18 20:12:50,629 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 168 transitions. [2020-08-18 20:12:50,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-08-18 20:12:50,633 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:12:50,633 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] [2020-08-18 20:12:50,633 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 20:12:50,634 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:12:50,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:12:50,634 INFO L82 PathProgramCache]: Analyzing trace with hash 272490530, now seen corresponding path program 1 times [2020-08-18 20:12:50,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:12:50,635 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1822164231] [2020-08-18 20:12:50,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:12:50,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:50,997 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 20:12:50,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:12:51,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:51,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 20:12:51,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:51,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 20:12:51,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:51,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 20:12:51,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:51,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 20:12:51,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:51,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 20:12:51,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:51,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:12:51,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:51,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:12:51,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:51,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-18 20:12:51,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:51,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 20:12:51,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:51,137 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-18 20:12:51,138 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1822164231] [2020-08-18 20:12:51,138 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 20:12:51,138 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-18 20:12:51,139 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047493529] [2020-08-18 20:12:51,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 20:12:51,141 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:12:51,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 20:12:51,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-18 20:12:51,141 INFO L87 Difference]: Start difference. First operand 143 states and 168 transitions. Second operand 9 states. [2020-08-18 20:12:51,476 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 20:12:51,798 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 20:12:52,035 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 20:12:52,249 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 20:12:53,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:12:53,533 INFO L93 Difference]: Finished difference Result 288 states and 358 transitions. [2020-08-18 20:12:53,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-18 20:12:53,533 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 64 [2020-08-18 20:12:53,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:12:53,537 INFO L225 Difference]: With dead ends: 288 [2020-08-18 20:12:53,537 INFO L226 Difference]: Without dead ends: 173 [2020-08-18 20:12:53,539 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-08-18 20:12:53,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2020-08-18 20:12:53,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 143. [2020-08-18 20:12:53,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-08-18 20:12:53,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 167 transitions. [2020-08-18 20:12:53,577 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 167 transitions. Word has length 64 [2020-08-18 20:12:53,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:12:53,577 INFO L479 AbstractCegarLoop]: Abstraction has 143 states and 167 transitions. [2020-08-18 20:12:53,577 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 20:12:53,578 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 167 transitions. [2020-08-18 20:12:53,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-08-18 20:12:53,580 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:12:53,580 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] [2020-08-18 20:12:53,580 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 20:12:53,580 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:12:53,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:12:53,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1080536843, now seen corresponding path program 1 times [2020-08-18 20:12:53,581 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:12:53,581 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1247019073] [2020-08-18 20:12:53,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:12:53,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:53,894 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 20:12:53,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:12:53,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:53,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 20:12:53,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:53,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 20:12:53,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:53,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 20:12:53,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:53,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 20:12:53,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:53,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 20:12:53,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:53,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:12:53,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:53,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:12:53,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:53,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-18 20:12:53,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:53,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 20:12:53,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:53,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 20:12:53,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:53,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-18 20:12:53,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:53,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 20:12:53,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:53,997 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-18 20:12:53,999 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1247019073] [2020-08-18 20:12:53,999 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 20:12:53,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-18 20:12:53,999 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955480534] [2020-08-18 20:12:54,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 20:12:54,000 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:12:54,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 20:12:54,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-18 20:12:54,001 INFO L87 Difference]: Start difference. First operand 143 states and 167 transitions. Second operand 7 states. [2020-08-18 20:12:54,336 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 20:12:55,715 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 20:12:56,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:12:56,232 INFO L93 Difference]: Finished difference Result 433 states and 561 transitions. [2020-08-18 20:12:56,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-18 20:12:56,233 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 77 [2020-08-18 20:12:56,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:12:56,237 INFO L225 Difference]: With dead ends: 433 [2020-08-18 20:12:56,237 INFO L226 Difference]: Without dead ends: 318 [2020-08-18 20:12:56,239 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-08-18 20:12:56,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-08-18 20:12:56,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 257. [2020-08-18 20:12:56,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2020-08-18 20:12:56,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 306 transitions. [2020-08-18 20:12:56,301 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 306 transitions. Word has length 77 [2020-08-18 20:12:56,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:12:56,301 INFO L479 AbstractCegarLoop]: Abstraction has 257 states and 306 transitions. [2020-08-18 20:12:56,301 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 20:12:56,302 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 306 transitions. [2020-08-18 20:12:56,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-08-18 20:12:56,303 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:12:56,304 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] [2020-08-18 20:12:56,304 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 20:12:56,304 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:12:56,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:12:56,304 INFO L82 PathProgramCache]: Analyzing trace with hash -1912690952, now seen corresponding path program 1 times [2020-08-18 20:12:56,305 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:12:56,305 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1830936565] [2020-08-18 20:12:56,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:12:56,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:56,596 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 20:12:56,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:12:56,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:56,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 20:12:56,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:56,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 20:12:56,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:56,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 20:12:56,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:56,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 20:12:56,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:56,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 20:12:56,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:56,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:12:56,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:56,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:12:56,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:56,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-18 20:12:56,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:56,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 20:12:56,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:56,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 20:12:56,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:56,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:12:56,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:56,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 20:12:56,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:56,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-08-18 20:12:56,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:56,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-18 20:12:56,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:12:56,728 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-18 20:12:56,729 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1830936565] [2020-08-18 20:12:56,729 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 20:12:56,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-18 20:12:56,730 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600566120] [2020-08-18 20:12:56,732 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 20:12:56,732 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:12:56,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 20:12:56,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-18 20:12:56,733 INFO L87 Difference]: Start difference. First operand 257 states and 306 transitions. Second operand 9 states. [2020-08-18 20:12:57,082 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 20:12:57,675 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 20:12:58,573 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 20:12:58,860 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 20:12:59,230 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 20:12:59,451 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 20:13:00,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:13:00,013 INFO L93 Difference]: Finished difference Result 536 states and 678 transitions. [2020-08-18 20:13:00,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-18 20:13:00,014 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 91 [2020-08-18 20:13:00,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:13:00,020 INFO L225 Difference]: With dead ends: 536 [2020-08-18 20:13:00,020 INFO L226 Difference]: Without dead ends: 307 [2020-08-18 20:13:00,022 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-08-18 20:13:00,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-08-18 20:13:00,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 256. [2020-08-18 20:13:00,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2020-08-18 20:13:00,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 303 transitions. [2020-08-18 20:13:00,103 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 303 transitions. Word has length 91 [2020-08-18 20:13:00,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:13:00,103 INFO L479 AbstractCegarLoop]: Abstraction has 256 states and 303 transitions. [2020-08-18 20:13:00,103 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 20:13:00,103 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 303 transitions. [2020-08-18 20:13:00,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-08-18 20:13:00,105 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:13:00,106 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:13:00,106 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 20:13:00,106 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:13:00,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:13:00,107 INFO L82 PathProgramCache]: Analyzing trace with hash 1692072858, now seen corresponding path program 1 times [2020-08-18 20:13:00,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:13:00,107 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1328470859] [2020-08-18 20:13:00,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:13:00,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:00,363 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 20:13:00,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:13:00,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:00,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 20:13:00,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:00,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 20:13:00,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:00,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 20:13:00,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:00,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 20:13:00,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:00,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 20:13:00,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:00,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-18 20:13:00,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:00,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:13:00,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:00,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-18 20:13:00,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:00,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 20:13:00,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:00,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 20:13:00,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:00,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:00,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:00,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 20:13:00,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:00,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:00,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:00,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:00,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:00,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 20:13:00,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:00,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-08-18 20:13:00,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:00,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-18 20:13:00,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:00,497 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-18 20:13:00,497 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1328470859] [2020-08-18 20:13:00,498 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 20:13:00,498 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-18 20:13:00,498 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93836043] [2020-08-18 20:13:00,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 20:13:00,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:13:00,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 20:13:00,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-08-18 20:13:00,500 INFO L87 Difference]: Start difference. First operand 256 states and 303 transitions. Second operand 10 states. [2020-08-18 20:13:01,062 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 20:13:01,665 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 20:13:01,892 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-18 20:13:02,121 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 20:13:02,346 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 20:13:03,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:13:03,128 INFO L93 Difference]: Finished difference Result 498 states and 618 transitions. [2020-08-18 20:13:03,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-18 20:13:03,129 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 103 [2020-08-18 20:13:03,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:13:03,132 INFO L225 Difference]: With dead ends: 498 [2020-08-18 20:13:03,132 INFO L226 Difference]: Without dead ends: 270 [2020-08-18 20:13:03,133 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2020-08-18 20:13:03,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-08-18 20:13:03,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 231. [2020-08-18 20:13:03,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-08-18 20:13:03,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 261 transitions. [2020-08-18 20:13:03,182 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 261 transitions. Word has length 103 [2020-08-18 20:13:03,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:13:03,183 INFO L479 AbstractCegarLoop]: Abstraction has 231 states and 261 transitions. [2020-08-18 20:13:03,183 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 20:13:03,183 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 261 transitions. [2020-08-18 20:13:03,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-08-18 20:13:03,185 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:13:03,185 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:13:03,185 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 20:13:03,186 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:13:03,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:13:03,186 INFO L82 PathProgramCache]: Analyzing trace with hash 304023506, now seen corresponding path program 1 times [2020-08-18 20:13:03,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:13:03,186 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1948127910] [2020-08-18 20:13:03,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:13:03,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:03,442 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 20:13:03,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:13:03,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:03,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 20:13:03,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:03,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 20:13:03,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:03,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 20:13:03,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:03,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 20:13:03,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:03,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 20:13:03,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:03,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:13:03,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:03,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:13:03,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:03,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-18 20:13:03,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:03,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 20:13:03,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:03,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 20:13:03,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:03,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:03,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:03,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 20:13:03,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:03,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:03,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:03,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:03,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:03,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 20:13:03,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:03,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-18 20:13:03,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:03,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-18 20:13:03,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:03,577 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-18 20:13:03,578 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1948127910] [2020-08-18 20:13:03,578 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 20:13:03,578 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-18 20:13:03,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074060368] [2020-08-18 20:13:03,579 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-18 20:13:03,579 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:13:03,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-18 20:13:03,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-08-18 20:13:03,580 INFO L87 Difference]: Start difference. First operand 231 states and 261 transitions. Second operand 11 states. [2020-08-18 20:13:04,057 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 20:13:04,289 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 20:13:04,527 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 20:13:05,163 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 20:13:05,400 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 20:13:05,633 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 20:13:06,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:13:06,490 INFO L93 Difference]: Finished difference Result 478 states and 578 transitions. [2020-08-18 20:13:06,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-18 20:13:06,493 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 107 [2020-08-18 20:13:06,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:13:06,497 INFO L225 Difference]: With dead ends: 478 [2020-08-18 20:13:06,497 INFO L226 Difference]: Without dead ends: 275 [2020-08-18 20:13:06,499 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-08-18 20:13:06,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2020-08-18 20:13:06,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 235. [2020-08-18 20:13:06,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-08-18 20:13:06,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 265 transitions. [2020-08-18 20:13:06,549 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 265 transitions. Word has length 107 [2020-08-18 20:13:06,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:13:06,550 INFO L479 AbstractCegarLoop]: Abstraction has 235 states and 265 transitions. [2020-08-18 20:13:06,550 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-18 20:13:06,550 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 265 transitions. [2020-08-18 20:13:06,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-08-18 20:13:06,551 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:13:06,552 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:13:06,552 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-18 20:13:06,552 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:13:06,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:13:06,552 INFO L82 PathProgramCache]: Analyzing trace with hash 63483377, now seen corresponding path program 1 times [2020-08-18 20:13:06,553 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:13:06,553 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1189357705] [2020-08-18 20:13:06,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:13:06,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:06,818 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 20:13:06,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:13:06,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:06,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 20:13:06,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:06,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 20:13:06,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:06,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 20:13:06,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:06,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 20:13:06,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:06,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 20:13:06,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:06,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:13:06,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:06,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:13:06,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:06,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-18 20:13:06,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:06,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 20:13:06,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:06,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 20:13:06,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:06,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:06,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:06,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 20:13:06,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:06,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:06,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:06,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:06,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:06,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 20:13:06,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:06,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-18 20:13:06,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:06,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-18 20:13:06,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:06,978 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-18 20:13:06,981 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1189357705] [2020-08-18 20:13:06,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 20:13:06,983 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-18 20:13:06,983 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394553335] [2020-08-18 20:13:06,983 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 20:13:06,984 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:13:06,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 20:13:06,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-18 20:13:06,984 INFO L87 Difference]: Start difference. First operand 235 states and 265 transitions. Second operand 7 states. [2020-08-18 20:13:07,277 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 20:13:07,792 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 20:13:09,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:13:09,446 INFO L93 Difference]: Finished difference Result 647 states and 802 transitions. [2020-08-18 20:13:09,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-18 20:13:09,446 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 107 [2020-08-18 20:13:09,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:13:09,450 INFO L225 Difference]: With dead ends: 647 [2020-08-18 20:13:09,450 INFO L226 Difference]: Without dead ends: 440 [2020-08-18 20:13:09,452 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 43 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-08-18 20:13:09,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2020-08-18 20:13:09,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 402. [2020-08-18 20:13:09,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-08-18 20:13:09,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 469 transitions. [2020-08-18 20:13:09,535 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 469 transitions. Word has length 107 [2020-08-18 20:13:09,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:13:09,536 INFO L479 AbstractCegarLoop]: Abstraction has 402 states and 469 transitions. [2020-08-18 20:13:09,536 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 20:13:09,536 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 469 transitions. [2020-08-18 20:13:09,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-08-18 20:13:09,538 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:13:09,538 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:13:09,538 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-18 20:13:09,538 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:13:09,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:13:09,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1148604343, now seen corresponding path program 1 times [2020-08-18 20:13:09,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:13:09,539 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1727033169] [2020-08-18 20:13:09,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:13:09,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:09,861 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 20:13:09,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:13:09,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:09,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 20:13:09,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:09,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 20:13:09,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:09,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 20:13:09,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:09,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 20:13:09,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:09,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 20:13:09,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:09,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 20:13:09,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:09,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-18 20:13:09,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:09,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:13:09,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:09,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-18 20:13:09,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:09,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 20:13:09,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:09,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 20:13:09,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:09,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:09,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:09,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 20:13:09,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:09,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:09,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:09,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:09,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:10,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 20:13:10,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:10,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-08-18 20:13:10,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:10,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-18 20:13:10,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:10,053 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-18 20:13:10,054 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1727033169] [2020-08-18 20:13:10,054 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 20:13:10,054 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-18 20:13:10,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133516082] [2020-08-18 20:13:10,055 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-18 20:13:10,056 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:13:10,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-18 20:13:10,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-08-18 20:13:10,057 INFO L87 Difference]: Start difference. First operand 402 states and 469 transitions. Second operand 12 states. [2020-08-18 20:13:10,681 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 20:13:11,285 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 20:13:12,199 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 20:13:12,484 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 20:13:12,732 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-18 20:13:12,986 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 20:13:13,243 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 20:13:14,442 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 20:13:14,695 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 20:13:15,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:13:15,535 INFO L93 Difference]: Finished difference Result 1110 states and 1376 transitions. [2020-08-18 20:13:15,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-08-18 20:13:15,536 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 111 [2020-08-18 20:13:15,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:13:15,541 INFO L225 Difference]: With dead ends: 1110 [2020-08-18 20:13:15,542 INFO L226 Difference]: Without dead ends: 806 [2020-08-18 20:13:15,544 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2020-08-18 20:13:15,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2020-08-18 20:13:15,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 696. [2020-08-18 20:13:15,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 696 states. [2020-08-18 20:13:15,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 804 transitions. [2020-08-18 20:13:15,699 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 804 transitions. Word has length 111 [2020-08-18 20:13:15,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:13:15,702 INFO L479 AbstractCegarLoop]: Abstraction has 696 states and 804 transitions. [2020-08-18 20:13:15,702 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-18 20:13:15,702 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 804 transitions. [2020-08-18 20:13:15,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-08-18 20:13:15,706 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:13:15,707 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-18 20:13:15,707 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-18 20:13:15,708 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:13:15,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:13:15,708 INFO L82 PathProgramCache]: Analyzing trace with hash 490171745, now seen corresponding path program 1 times [2020-08-18 20:13:15,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:13:15,709 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [148081653] [2020-08-18 20:13:15,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:13:15,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:16,048 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 20:13:16,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:13:16,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:16,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 20:13:16,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:16,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 20:13:16,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:16,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 20:13:16,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:16,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 20:13:16,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:16,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 20:13:16,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:16,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 20:13:16,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:16,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-18 20:13:16,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:16,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:13:16,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:16,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:13:16,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:16,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:13:16,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:16,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 20:13:16,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:16,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 20:13:16,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:16,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:16,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:16,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 20:13:16,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:16,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:16,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:16,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:16,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:16,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 20:13:16,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:16,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-18 20:13:16,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:16,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:16,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:16,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-08-18 20:13:16,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:16,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:13:16,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:16,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-08-18 20:13:16,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:16,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-08-18 20:13:16,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:16,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 20:13:16,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:16,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:16,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:16,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-18 20:13:16,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:16,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 20:13:16,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:16,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-08-18 20:13:16,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:16,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-08-18 20:13:16,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:16,481 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 21 proven. 8 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-08-18 20:13:16,482 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [148081653] [2020-08-18 20:13:16,482 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:13:16,482 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-18 20:13:16,483 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279458815] [2020-08-18 20:13:16,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-18 20:13:16,484 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:13:16,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-18 20:13:16,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-08-18 20:13:16,485 INFO L87 Difference]: Start difference. First operand 696 states and 804 transitions. Second operand 16 states. [2020-08-18 20:13:17,236 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-18 20:13:17,607 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-18 20:13:17,902 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-18 20:13:18,156 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-18 20:13:18,785 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-08-18 20:13:19,062 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-18 20:13:19,466 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-08-18 20:13:20,212 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-08-18 20:13:20,875 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 20:13:21,304 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-08-18 20:13:21,940 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-08-18 20:13:22,410 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-08-18 20:13:22,718 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-18 20:13:23,286 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 20:13:23,692 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-08-18 20:13:24,271 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 194 [2020-08-18 20:13:24,927 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-18 20:13:25,406 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 195 [2020-08-18 20:13:26,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:13:26,061 INFO L93 Difference]: Finished difference Result 1505 states and 1795 transitions. [2020-08-18 20:13:26,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-08-18 20:13:26,061 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 170 [2020-08-18 20:13:26,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:13:26,067 INFO L225 Difference]: With dead ends: 1505 [2020-08-18 20:13:26,068 INFO L226 Difference]: Without dead ends: 903 [2020-08-18 20:13:26,070 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 767 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=618, Invalid=2462, Unknown=0, NotChecked=0, Total=3080 [2020-08-18 20:13:26,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2020-08-18 20:13:26,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 824. [2020-08-18 20:13:26,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 824 states. [2020-08-18 20:13:26,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 962 transitions. [2020-08-18 20:13:26,188 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 962 transitions. Word has length 170 [2020-08-18 20:13:26,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:13:26,188 INFO L479 AbstractCegarLoop]: Abstraction has 824 states and 962 transitions. [2020-08-18 20:13:26,188 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-18 20:13:26,188 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 962 transitions. [2020-08-18 20:13:26,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2020-08-18 20:13:26,195 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:13:26,195 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:13:26,196 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-18 20:13:26,196 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:13:26,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:13:26,196 INFO L82 PathProgramCache]: Analyzing trace with hash -1064646135, now seen corresponding path program 1 times [2020-08-18 20:13:26,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:13:26,197 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [771178576] [2020-08-18 20:13:26,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:13:26,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:26,498 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 20:13:26,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:13:26,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:26,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 20:13:26,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:26,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 20:13:26,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:26,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 20:13:26,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:26,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 20:13:26,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:26,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 20:13:26,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:26,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 20:13:26,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:26,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-18 20:13:26,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:26,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:13:26,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:26,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:13:26,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:26,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:13:26,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:26,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 20:13:26,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:26,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 20:13:26,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:26,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:26,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:26,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 20:13:26,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:26,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:26,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:26,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:26,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:26,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 20:13:26,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:26,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-18 20:13:26,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:26,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:26,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:26,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-08-18 20:13:26,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:26,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:13:26,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:26,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:13:26,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:26,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 20:13:26,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:26,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-18 20:13:26,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:26,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 20:13:26,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:26,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:26,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:26,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-18 20:13:26,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:26,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 20:13:26,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:26,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-18 20:13:26,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:26,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:26,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:26,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-18 20:13:26,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:26,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:13:26,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:26,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:13:26,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:26,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 20:13:26,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:26,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-18 20:13:26,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:26,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 20:13:26,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:26,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:26,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:26,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-18 20:13:26,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:26,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-18 20:13:26,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:26,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:26,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:26,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-08-18 20:13:27,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:27,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:13:27,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:27,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2020-08-18 20:13:27,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:27,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 20:13:27,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:27,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 20:13:27,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:27,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:27,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:27,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 20:13:27,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:27,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:27,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:27,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:27,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:27,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 20:13:27,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:27,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2020-08-18 20:13:27,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:27,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2020-08-18 20:13:27,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:27,108 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 78 proven. 29 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2020-08-18 20:13:27,109 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [771178576] [2020-08-18 20:13:27,109 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:13:27,109 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-08-18 20:13:27,109 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380557561] [2020-08-18 20:13:27,110 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-08-18 20:13:27,110 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:13:27,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-08-18 20:13:27,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2020-08-18 20:13:27,113 INFO L87 Difference]: Start difference. First operand 824 states and 962 transitions. Second operand 15 states. [2020-08-18 20:13:28,465 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 20:13:28,727 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-18 20:13:28,972 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-18 20:13:29,224 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 20:13:30,441 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-18 20:13:31,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:13:31,447 INFO L93 Difference]: Finished difference Result 2172 states and 2641 transitions. [2020-08-18 20:13:31,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-08-18 20:13:31,450 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 299 [2020-08-18 20:13:31,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:13:31,457 INFO L225 Difference]: With dead ends: 2172 [2020-08-18 20:13:31,457 INFO L226 Difference]: Without dead ends: 1289 [2020-08-18 20:13:31,460 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 107 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=230, Invalid=762, Unknown=0, NotChecked=0, Total=992 [2020-08-18 20:13:31,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2020-08-18 20:13:31,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 1086. [2020-08-18 20:13:31,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1086 states. [2020-08-18 20:13:31,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 1299 transitions. [2020-08-18 20:13:31,683 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 1299 transitions. Word has length 299 [2020-08-18 20:13:31,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:13:31,684 INFO L479 AbstractCegarLoop]: Abstraction has 1086 states and 1299 transitions. [2020-08-18 20:13:31,684 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-08-18 20:13:31,684 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 1299 transitions. [2020-08-18 20:13:31,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2020-08-18 20:13:31,697 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:13:31,698 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:13:31,698 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-18 20:13:31,698 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:13:31,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:13:31,699 INFO L82 PathProgramCache]: Analyzing trace with hash -140233560, now seen corresponding path program 1 times [2020-08-18 20:13:31,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:13:31,705 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [625013945] [2020-08-18 20:13:31,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:13:31,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:31,996 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 20:13:31,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:13:32,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 20:13:32,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 20:13:32,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 20:13:32,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 20:13:32,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 20:13:32,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 20:13:32,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-18 20:13:32,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:13:32,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:13:32,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:13:32,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 20:13:32,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 20:13:32,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:32,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 20:13:32,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:32,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:32,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 20:13:32,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-18 20:13:32,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:32,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-08-18 20:13:32,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:13:32,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:13:32,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 20:13:32,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-18 20:13:32,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 20:13:32,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:32,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-18 20:13:32,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 20:13:32,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-18 20:13:32,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:32,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-18 20:13:32,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-08-18 20:13:32,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:13:32,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:13:32,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 20:13:32,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-18 20:13:32,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 20:13:32,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:32,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-18 20:13:32,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-18 20:13:32,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:32,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-08-18 20:13:32,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2020-08-18 20:13:32,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:13:32,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2020-08-18 20:13:32,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 20:13:32,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 20:13:32,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:32,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 20:13:32,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:32,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:32,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 20:13:32,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-08-18 20:13:32,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2020-08-18 20:13:32,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:32,396 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 86 proven. 38 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2020-08-18 20:13:32,397 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [625013945] [2020-08-18 20:13:32,397 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:13:32,397 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-18 20:13:32,397 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541553688] [2020-08-18 20:13:32,399 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-18 20:13:32,399 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:13:32,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-18 20:13:32,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2020-08-18 20:13:32,400 INFO L87 Difference]: Start difference. First operand 1086 states and 1299 transitions. Second operand 16 states. [2020-08-18 20:13:32,902 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 20:13:33,200 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-18 20:13:33,443 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-18 20:13:33,674 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-18 20:13:34,271 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 20:13:35,094 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 20:13:35,364 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 20:13:35,816 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 20:13:36,355 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 20:13:37,116 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 20:13:37,350 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 20:13:37,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:13:37,887 INFO L93 Difference]: Finished difference Result 2062 states and 2501 transitions. [2020-08-18 20:13:37,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-08-18 20:13:37,887 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 309 [2020-08-18 20:13:37,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:13:37,895 INFO L225 Difference]: With dead ends: 2062 [2020-08-18 20:13:37,895 INFO L226 Difference]: Without dead ends: 1089 [2020-08-18 20:13:37,898 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=297, Invalid=1185, Unknown=0, NotChecked=0, Total=1482 [2020-08-18 20:13:37,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2020-08-18 20:13:38,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 1046. [2020-08-18 20:13:38,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1046 states. [2020-08-18 20:13:38,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1046 states to 1046 states and 1233 transitions. [2020-08-18 20:13:38,094 INFO L78 Accepts]: Start accepts. Automaton has 1046 states and 1233 transitions. Word has length 309 [2020-08-18 20:13:38,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:13:38,096 INFO L479 AbstractCegarLoop]: Abstraction has 1046 states and 1233 transitions. [2020-08-18 20:13:38,096 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-18 20:13:38,096 INFO L276 IsEmpty]: Start isEmpty. Operand 1046 states and 1233 transitions. [2020-08-18 20:13:38,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2020-08-18 20:13:38,106 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:13:38,106 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:13:38,106 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-18 20:13:38,106 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:13:38,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:13:38,107 INFO L82 PathProgramCache]: Analyzing trace with hash 927464560, now seen corresponding path program 1 times [2020-08-18 20:13:38,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:13:38,107 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [557325074] [2020-08-18 20:13:38,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:13:38,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,402 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 20:13:38,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:13:38,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 20:13:38,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 20:13:38,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 20:13:38,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 20:13:38,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 20:13:38,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 20:13:38,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-18 20:13:38,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:13:38,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:13:38,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:13:38,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 20:13:38,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 20:13:38,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:38,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 20:13:38,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:38,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:38,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 20:13:38,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-18 20:13:38,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:38,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-08-18 20:13:38,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:13:38,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:13:38,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 20:13:38,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-18 20:13:38,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 20:13:38,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:38,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-18 20:13:38,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 20:13:38,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-18 20:13:38,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:38,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-18 20:13:38,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-08-18 20:13:38,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:13:38,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:13:38,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 20:13:38,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-18 20:13:38,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 20:13:38,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:38,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-18 20:13:38,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-18 20:13:38,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:38,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2020-08-18 20:13:38,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:13:38,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2020-08-18 20:13:38,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 20:13:38,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 20:13:38,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:38,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 20:13:38,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:38,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 20:13:38,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 20:13:38,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2020-08-18 20:13:38,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2020-08-18 20:13:38,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:13:38,781 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 78 proven. 21 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2020-08-18 20:13:38,781 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [557325074] [2020-08-18 20:13:38,781 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:13:38,782 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-18 20:13:38,782 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126592064] [2020-08-18 20:13:38,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-18 20:13:38,784 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:13:38,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-18 20:13:38,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2020-08-18 20:13:38,784 INFO L87 Difference]: Start difference. First operand 1046 states and 1233 transitions. Second operand 16 states. [2020-08-18 20:13:39,176 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 20:13:39,878 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 20:13:40,818 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 20:13:41,110 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 20:13:41,372 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 20:13:41,620 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-18 20:13:41,925 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-18 20:13:42,181 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-18 20:13:43,699 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-08-18 20:13:44,134 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-08-18 20:13:44,622 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 192 [2020-08-18 20:13:45,058 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 192