/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=SMALLEST -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product54.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 12:04:03,204 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 12:04:03,207 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 12:04:03,236 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 12:04:03,236 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 12:04:03,245 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 12:04:03,247 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 12:04:03,250 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 12:04:03,253 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 12:04:03,255 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 12:04:03,256 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 12:04:03,258 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 12:04:03,258 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 12:04:03,262 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 12:04:03,264 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 12:04:03,265 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 12:04:03,267 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 12:04:03,268 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 12:04:03,270 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 12:04:03,278 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 12:04:03,280 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 12:04:03,281 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 12:04:03,282 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 12:04:03,283 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 12:04:03,295 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 12:04:03,295 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 12:04:03,295 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 12:04:03,296 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 12:04:03,297 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 12:04:03,299 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 12:04:03,300 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 12:04:03,300 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 12:04:03,301 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 12:04:03,302 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 12:04:03,303 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 12:04:03,303 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 12:04:03,304 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 12:04:03,304 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 12:04:03,304 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 12:04:03,305 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 12:04:03,307 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 12:04:03,307 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 12:04:03,354 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 12:04:03,354 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 12:04:03,356 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 12:04:03,356 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 12:04:03,357 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 12:04:03,357 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 12:04:03,357 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 12:04:03,357 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 12:04:03,358 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 12:04:03,358 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 12:04:03,359 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 12:04:03,359 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 12:04:03,359 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 12:04:03,360 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 12:04:03,360 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 12:04:03,360 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 12:04:03,360 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 12:04:03,361 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 12:04:03,361 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 12:04:03,361 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 12:04:03,361 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 12:04:03,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 12:04:03,362 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 12:04:03,362 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 12:04:03,362 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 12:04:03,362 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 12:04:03,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 12:04:03,363 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 12:04:03,363 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 12:04:03,363 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=SMALLEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLEST; [2020-08-18 12:04:03,667 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 12:04:03,686 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 12:04:03,689 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 12:04:03,691 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 12:04:03,692 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 12:04:03,693 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product54.cil.c [2020-08-18 12:04:03,778 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/13627b83e/f9b961577ee04c609ebc8c7503be5d65/FLAG7f335eac6 [2020-08-18 12:04:04,298 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 12:04:04,299 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product54.cil.c [2020-08-18 12:04:04,322 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/13627b83e/f9b961577ee04c609ebc8c7503be5d65/FLAG7f335eac6 [2020-08-18 12:04:04,596 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/13627b83e/f9b961577ee04c609ebc8c7503be5d65 [2020-08-18 12:04:04,606 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 12:04:04,608 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 12:04:04,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 12:04:04,609 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 12:04:04,613 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 12:04:04,614 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 12:04:04" (1/1) ... [2020-08-18 12:04:04,617 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26e5903c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:04:04, skipping insertion in model container [2020-08-18 12:04:04,617 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 12:04:04" (1/1) ... [2020-08-18 12:04:04,625 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 12:04:04,686 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 12:04:05,229 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 12:04:05,241 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 12:04:05,328 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 12:04:05,366 INFO L208 MainTranslator]: Completed translation [2020-08-18 12:04:05,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:04:05 WrapperNode [2020-08-18 12:04:05,367 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 12:04:05,368 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 12:04:05,368 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 12:04:05,368 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 12:04:05,381 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:04:05" (1/1) ... [2020-08-18 12:04:05,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:04:05" (1/1) ... [2020-08-18 12:04:05,401 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:04:05" (1/1) ... [2020-08-18 12:04:05,402 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:04:05" (1/1) ... [2020-08-18 12:04:05,437 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:04:05" (1/1) ... [2020-08-18 12:04:05,451 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:04:05" (1/1) ... [2020-08-18 12:04:05,456 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:04:05" (1/1) ... [2020-08-18 12:04:05,466 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 12:04:05,466 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 12:04:05,467 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 12:04:05,467 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 12:04:05,468 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:04:05" (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 12:04:05,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 12:04:05,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 12:04:05,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-18 12:04:05,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-08-18 12:04:05,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-08-18 12:04:05,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-08-18 12:04:05,522 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-18 12:04:05,522 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-18 12:04:05,523 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-18 12:04:05,523 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-18 12:04:05,523 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-18 12:04:05,523 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-18 12:04:05,523 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-18 12:04:05,523 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-18 12:04:05,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-18 12:04:05,524 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-18 12:04:05,524 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-18 12:04:05,524 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-18 12:04:05,524 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-18 12:04:05,524 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 12:04:05,524 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-18 12:04:05,524 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-18 12:04:05,525 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-08-18 12:04:05,525 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-08-18 12:04:05,525 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-18 12:04:05,525 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-18 12:04:05,525 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-18 12:04:05,525 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-18 12:04:05,526 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-18 12:04:05,526 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-18 12:04:05,526 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-18 12:04:05,526 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-18 12:04:05,526 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-18 12:04:05,526 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-18 12:04:05,527 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-18 12:04:05,527 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-18 12:04:05,527 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-18 12:04:05,527 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-18 12:04:05,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-18 12:04:05,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-18 12:04:05,528 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-18 12:04:05,528 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-18 12:04:05,528 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-18 12:04:05,528 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-18 12:04:05,528 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 12:04:05,528 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 12:04:05,528 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-18 12:04:05,528 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-18 12:04:05,528 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-18 12:04:05,529 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-18 12:04:05,529 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-08-18 12:04:05,529 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-08-18 12:04:05,529 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-08-18 12:04:05,529 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-18 12:04:05,529 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-18 12:04:05,530 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-18 12:04:05,530 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-18 12:04:05,530 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-18 12:04:05,530 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-18 12:04:05,530 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-18 12:04:05,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 12:04:05,530 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-18 12:04:05,531 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-18 12:04:05,531 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-18 12:04:05,531 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-18 12:04:05,531 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-18 12:04:05,531 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-18 12:04:05,531 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-18 12:04:05,531 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-18 12:04:05,531 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-18 12:04:05,532 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-18 12:04:05,532 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 12:04:05,532 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-18 12:04:05,532 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-18 12:04:05,532 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-18 12:04:05,532 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-18 12:04:05,533 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-18 12:04:05,533 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-18 12:04:05,533 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-08-18 12:04:05,533 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-18 12:04:05,533 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-08-18 12:04:05,533 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-18 12:04:05,533 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-18 12:04:05,534 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-18 12:04:05,534 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-18 12:04:05,534 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-18 12:04:05,534 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-18 12:04:05,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-18 12:04:05,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-18 12:04:05,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 12:04:05,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-18 12:04:05,534 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-18 12:04:05,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 12:04:05,535 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-18 12:04:05,535 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-18 12:04:05,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 12:04:05,535 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-18 12:04:05,535 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-18 12:04:05,535 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-18 12:04:05,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 12:04:05,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-18 12:04:05,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 12:04:06,675 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 12:04:06,675 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-18 12:04:06,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 12:04:06 BoogieIcfgContainer [2020-08-18 12:04:06,681 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 12:04:06,682 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 12:04:06,682 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 12:04:06,685 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 12:04:06,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 12:04:04" (1/3) ... [2020-08-18 12:04:06,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62331858 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 12:04:06, skipping insertion in model container [2020-08-18 12:04:06,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:04:05" (2/3) ... [2020-08-18 12:04:06,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62331858 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 12:04:06, skipping insertion in model container [2020-08-18 12:04:06,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 12:04:06" (3/3) ... [2020-08-18 12:04:06,689 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product54.cil.c [2020-08-18 12:04:06,700 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 12:04:06,709 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 12:04:06,721 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 12:04:06,742 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 12:04:06,742 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 12:04:06,742 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 12:04:06,742 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 12:04:06,742 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 12:04:06,743 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 12:04:06,743 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 12:04:06,743 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 12:04:06,767 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states. [2020-08-18 12:04:06,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-08-18 12:04:06,778 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:04:06,779 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 12:04:06,780 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:04:06,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:04:06,786 INFO L82 PathProgramCache]: Analyzing trace with hash -404445524, now seen corresponding path program 1 times [2020-08-18 12:04:06,795 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:04:06,796 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [727690872] [2020-08-18 12:04:06,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:04:07,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:07,499 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 12:04:07,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:04:07,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:07,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 12:04:07,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:07,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 12:04:07,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:07,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 12:04:07,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:07,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 12:04:07,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:07,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 12:04:07,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:07,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 12:04:07,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:07,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:04:07,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:07,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-18 12:04:07,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:07,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-18 12:04:07,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:07,638 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 12:04:07,640 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [727690872] [2020-08-18 12:04:07,642 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 12:04:07,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 12:04:07,648 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261387773] [2020-08-18 12:04:07,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-18 12:04:07,656 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 12:04:07,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-18 12:04:07,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-18 12:04:07,674 INFO L87 Difference]: Start difference. First operand 203 states. Second operand 4 states. [2020-08-18 12:04:08,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 12:04:08,921 INFO L93 Difference]: Finished difference Result 351 states and 448 transitions. [2020-08-18 12:04:08,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-18 12:04:08,923 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-08-18 12:04:08,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 12:04:08,939 INFO L225 Difference]: With dead ends: 351 [2020-08-18 12:04:08,939 INFO L226 Difference]: Without dead ends: 192 [2020-08-18 12:04:08,944 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-18 12:04:08,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-08-18 12:04:09,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 160. [2020-08-18 12:04:09,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-08-18 12:04:09,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 188 transitions. [2020-08-18 12:04:09,043 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 188 transitions. Word has length 59 [2020-08-18 12:04:09,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 12:04:09,044 INFO L479 AbstractCegarLoop]: Abstraction has 160 states and 188 transitions. [2020-08-18 12:04:09,044 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-18 12:04:09,044 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 188 transitions. [2020-08-18 12:04:09,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-08-18 12:04:09,048 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:04:09,048 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] [2020-08-18 12:04:09,048 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 12:04:09,049 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:04:09,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:04:09,049 INFO L82 PathProgramCache]: Analyzing trace with hash -315023676, now seen corresponding path program 1 times [2020-08-18 12:04:09,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:04:09,050 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [610289945] [2020-08-18 12:04:09,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:04:09,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:09,342 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 12:04:09,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:04:09,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:09,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 12:04:09,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:09,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 12:04:09,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:09,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 12:04:09,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:09,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 12:04:09,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:09,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 12:04:09,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:09,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-18 12:04:09,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:09,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:04:09,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:09,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-18 12:04:09,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:09,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-18 12:04:09,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:09,404 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 12:04:09,404 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [610289945] [2020-08-18 12:04:09,405 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 12:04:09,405 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-18 12:04:09,405 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858814675] [2020-08-18 12:04:09,407 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 12:04:09,407 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 12:04:09,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 12:04:09,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 12:04:09,408 INFO L87 Difference]: Start difference. First operand 160 states and 188 transitions. Second operand 5 states. [2020-08-18 12:04:09,898 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 12:04:10,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 12:04:10,914 INFO L93 Difference]: Finished difference Result 292 states and 356 transitions. [2020-08-18 12:04:10,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-18 12:04:10,920 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2020-08-18 12:04:10,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 12:04:10,924 INFO L225 Difference]: With dead ends: 292 [2020-08-18 12:04:10,924 INFO L226 Difference]: Without dead ends: 182 [2020-08-18 12:04:10,927 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-18 12:04:10,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-08-18 12:04:10,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 151. [2020-08-18 12:04:10,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2020-08-18 12:04:10,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 176 transitions. [2020-08-18 12:04:10,970 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 176 transitions. Word has length 60 [2020-08-18 12:04:10,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 12:04:10,971 INFO L479 AbstractCegarLoop]: Abstraction has 151 states and 176 transitions. [2020-08-18 12:04:10,971 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 12:04:10,971 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 176 transitions. [2020-08-18 12:04:10,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-08-18 12:04:10,973 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:04:10,973 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] [2020-08-18 12:04:10,973 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 12:04:10,973 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:04:10,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:04:10,974 INFO L82 PathProgramCache]: Analyzing trace with hash 649722396, now seen corresponding path program 1 times [2020-08-18 12:04:10,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:04:10,974 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [869448112] [2020-08-18 12:04:10,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:04:11,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:11,341 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 12:04:11,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:04:11,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:11,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 12:04:11,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:11,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 12:04:11,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:11,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 12:04:11,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:11,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 12:04:11,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:11,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 12:04:11,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:11,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-18 12:04:11,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:11,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:04:11,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:11,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-18 12:04:11,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:11,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-18 12:04:11,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:11,427 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 12:04:11,427 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [869448112] [2020-08-18 12:04:11,428 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 12:04:11,428 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-18 12:04:11,428 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004062099] [2020-08-18 12:04:11,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 12:04:11,429 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 12:04:11,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 12:04:11,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-18 12:04:11,430 INFO L87 Difference]: Start difference. First operand 151 states and 176 transitions. Second operand 9 states. [2020-08-18 12:04:11,833 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 12:04:12,136 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 12:04:12,371 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 12:04:12,600 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 12:04:14,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 12:04:14,032 INFO L93 Difference]: Finished difference Result 305 states and 375 transitions. [2020-08-18 12:04:14,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-18 12:04:14,035 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2020-08-18 12:04:14,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 12:04:14,037 INFO L225 Difference]: With dead ends: 305 [2020-08-18 12:04:14,038 INFO L226 Difference]: Without dead ends: 182 [2020-08-18 12:04:14,039 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-08-18 12:04:14,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-08-18 12:04:14,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 151. [2020-08-18 12:04:14,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2020-08-18 12:04:14,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 175 transitions. [2020-08-18 12:04:14,096 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 175 transitions. Word has length 65 [2020-08-18 12:04:14,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 12:04:14,097 INFO L479 AbstractCegarLoop]: Abstraction has 151 states and 175 transitions. [2020-08-18 12:04:14,097 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 12:04:14,097 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 175 transitions. [2020-08-18 12:04:14,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-08-18 12:04:14,099 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:04:14,099 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] [2020-08-18 12:04:14,100 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 12:04:14,100 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:04:14,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:04:14,100 INFO L82 PathProgramCache]: Analyzing trace with hash 2071838844, now seen corresponding path program 1 times [2020-08-18 12:04:14,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:04:14,101 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [474737753] [2020-08-18 12:04:14,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:04:14,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:14,376 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 12:04:14,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:04:14,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:14,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 12:04:14,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:14,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 12:04:14,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:14,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 12:04:14,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:14,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 12:04:14,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:14,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 12:04:14,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:14,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-18 12:04:14,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:14,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:04:14,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:14,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-18 12:04:14,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:14,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:04:14,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:14,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:04:14,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:14,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:04:14,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:14,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 12:04:14,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:14,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-18 12:04:14,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:14,472 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 12:04:14,472 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [474737753] [2020-08-18 12:04:14,473 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 12:04:14,473 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-18 12:04:14,473 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487402292] [2020-08-18 12:04:14,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 12:04:14,474 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 12:04:14,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 12:04:14,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-18 12:04:14,475 INFO L87 Difference]: Start difference. First operand 151 states and 175 transitions. Second operand 7 states. [2020-08-18 12:04:14,797 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 12:04:16,173 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 12:04:16,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 12:04:16,793 INFO L93 Difference]: Finished difference Result 415 states and 516 transitions. [2020-08-18 12:04:16,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-18 12:04:16,795 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2020-08-18 12:04:16,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 12:04:16,798 INFO L225 Difference]: With dead ends: 415 [2020-08-18 12:04:16,798 INFO L226 Difference]: Without dead ends: 292 [2020-08-18 12:04:16,800 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-08-18 12:04:16,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2020-08-18 12:04:16,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 246. [2020-08-18 12:04:16,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2020-08-18 12:04:16,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 280 transitions. [2020-08-18 12:04:16,849 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 280 transitions. Word has length 83 [2020-08-18 12:04:16,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 12:04:16,849 INFO L479 AbstractCegarLoop]: Abstraction has 246 states and 280 transitions. [2020-08-18 12:04:16,850 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 12:04:16,850 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 280 transitions. [2020-08-18 12:04:16,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-08-18 12:04:16,851 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:04:16,851 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] [2020-08-18 12:04:16,852 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 12:04:16,852 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:04:16,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:04:16,852 INFO L82 PathProgramCache]: Analyzing trace with hash 477615551, now seen corresponding path program 1 times [2020-08-18 12:04:16,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:04:16,853 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [431691168] [2020-08-18 12:04:16,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:04:16,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:17,147 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 12:04:17,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:04:17,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:17,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 12:04:17,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:17,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 12:04:17,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:17,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 12:04:17,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:17,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 12:04:17,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:17,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 12:04:17,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:17,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-18 12:04:17,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:17,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:04:17,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:17,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-18 12:04:17,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:17,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:04:17,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:17,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:04:17,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:17,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:04:17,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:17,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 12:04:17,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:17,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 12:04:17,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:17,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-18 12:04:17,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:17,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-08-18 12:04:17,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:17,314 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 12:04:17,314 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [431691168] [2020-08-18 12:04:17,314 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 12:04:17,314 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-18 12:04:17,315 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021945814] [2020-08-18 12:04:17,315 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 12:04:17,315 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 12:04:17,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 12:04:17,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-18 12:04:17,317 INFO L87 Difference]: Start difference. First operand 246 states and 280 transitions. Second operand 9 states. [2020-08-18 12:04:17,674 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 12:04:18,343 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 12:04:19,005 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 12:04:19,327 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 12:04:19,752 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 12:04:19,995 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 12:04:20,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 12:04:20,648 INFO L93 Difference]: Finished difference Result 509 states and 612 transitions. [2020-08-18 12:04:20,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-18 12:04:20,648 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-08-18 12:04:20,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 12:04:20,652 INFO L225 Difference]: With dead ends: 509 [2020-08-18 12:04:20,652 INFO L226 Difference]: Without dead ends: 291 [2020-08-18 12:04:20,654 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 39 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 12:04:20,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2020-08-18 12:04:20,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 245. [2020-08-18 12:04:20,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-08-18 12:04:20,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 277 transitions. [2020-08-18 12:04:20,703 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 277 transitions. Word has length 97 [2020-08-18 12:04:20,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 12:04:20,704 INFO L479 AbstractCegarLoop]: Abstraction has 245 states and 277 transitions. [2020-08-18 12:04:20,704 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 12:04:20,704 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 277 transitions. [2020-08-18 12:04:20,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-08-18 12:04:20,705 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:04:20,705 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 12:04:20,706 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 12:04:20,706 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:04:20,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:04:20,706 INFO L82 PathProgramCache]: Analyzing trace with hash 115684108, now seen corresponding path program 1 times [2020-08-18 12:04:20,706 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:04:20,707 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [715717682] [2020-08-18 12:04:20,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:04:20,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:20,939 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 12:04:20,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:04:20,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:20,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 12:04:20,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:20,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 12:04:20,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:20,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 12:04:20,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:20,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 12:04:20,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:20,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 12:04:20,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:20,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-18 12:04:20,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:20,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:04:20,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:20,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-18 12:04:20,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:20,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:04:20,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:20,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:04:20,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:21,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:04:21,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:21,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 12:04:21,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:21,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 12:04:21,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:21,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-18 12:04:21,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:21,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-18 12:04:21,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:21,068 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 12:04:21,068 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [715717682] [2020-08-18 12:04:21,069 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 12:04:21,069 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-18 12:04:21,069 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586210990] [2020-08-18 12:04:21,070 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 12:04:21,070 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 12:04:21,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 12:04:21,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-18 12:04:21,070 INFO L87 Difference]: Start difference. First operand 245 states and 277 transitions. Second operand 9 states. [2020-08-18 12:04:22,033 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 12:04:22,272 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-18 12:04:22,514 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 12:04:22,761 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 12:04:23,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 12:04:23,687 INFO L93 Difference]: Finished difference Result 507 states and 607 transitions. [2020-08-18 12:04:23,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 12:04:23,688 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 98 [2020-08-18 12:04:23,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 12:04:23,690 INFO L225 Difference]: With dead ends: 507 [2020-08-18 12:04:23,690 INFO L226 Difference]: Without dead ends: 290 [2020-08-18 12:04:23,691 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-08-18 12:04:23,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-08-18 12:04:23,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 250. [2020-08-18 12:04:23,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-08-18 12:04:23,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 282 transitions. [2020-08-18 12:04:23,740 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 282 transitions. Word has length 98 [2020-08-18 12:04:23,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 12:04:23,741 INFO L479 AbstractCegarLoop]: Abstraction has 250 states and 282 transitions. [2020-08-18 12:04:23,741 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 12:04:23,741 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 282 transitions. [2020-08-18 12:04:23,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-08-18 12:04:23,742 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:04:23,743 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 12:04:23,743 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-18 12:04:23,743 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:04:23,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:04:23,744 INFO L82 PathProgramCache]: Analyzing trace with hash 43297550, now seen corresponding path program 1 times [2020-08-18 12:04:23,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:04:23,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [26497093] [2020-08-18 12:04:23,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:04:23,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:24,029 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 12:04:24,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:04:24,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:24,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 12:04:24,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:24,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 12:04:24,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:24,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 12:04:24,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:24,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 12:04:24,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:24,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 12:04:24,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:24,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-18 12:04:24,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:24,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:04:24,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:24,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-18 12:04:24,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:24,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:04:24,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:24,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:04:24,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:24,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:04:24,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:24,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 12:04:24,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:24,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 12:04:24,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:24,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-18 12:04:24,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:24,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-18 12:04:24,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:24,279 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 12:04:24,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [26497093] [2020-08-18 12:04:24,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 12:04:24,281 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-18 12:04:24,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379567628] [2020-08-18 12:04:24,283 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-18 12:04:24,283 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 12:04:24,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-18 12:04:24,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-08-18 12:04:24,290 INFO L87 Difference]: Start difference. First operand 250 states and 282 transitions. Second operand 11 states. [2020-08-18 12:04:24,963 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 12:04:25,207 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 12:04:25,436 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 12:04:26,143 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 12:04:26,384 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 12:04:26,618 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 12:04:27,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 12:04:27,639 INFO L93 Difference]: Finished difference Result 519 states and 628 transitions. [2020-08-18 12:04:27,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-18 12:04:27,640 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 98 [2020-08-18 12:04:27,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 12:04:27,642 INFO L225 Difference]: With dead ends: 519 [2020-08-18 12:04:27,642 INFO L226 Difference]: Without dead ends: 297 [2020-08-18 12:04:27,644 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-08-18 12:04:27,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2020-08-18 12:04:27,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 254. [2020-08-18 12:04:27,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-08-18 12:04:27,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 286 transitions. [2020-08-18 12:04:27,688 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 286 transitions. Word has length 98 [2020-08-18 12:04:27,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 12:04:27,689 INFO L479 AbstractCegarLoop]: Abstraction has 254 states and 286 transitions. [2020-08-18 12:04:27,689 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-18 12:04:27,689 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 286 transitions. [2020-08-18 12:04:27,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-08-18 12:04:27,690 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:04:27,690 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 12:04:27,690 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-18 12:04:27,691 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:04:27,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:04:27,691 INFO L82 PathProgramCache]: Analyzing trace with hash 373063311, now seen corresponding path program 1 times [2020-08-18 12:04:27,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:04:27,692 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [565053337] [2020-08-18 12:04:27,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:04:27,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:28,034 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 12:04:28,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:04:28,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:28,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 12:04:28,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:28,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 12:04:28,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:28,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 12:04:28,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:28,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 12:04:28,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:28,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 12:04:28,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:28,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-18 12:04:28,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:28,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:04:28,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:28,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-18 12:04:28,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:28,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:04:28,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:28,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:04:28,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:28,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:04:28,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:28,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 12:04:28,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:28,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 12:04:28,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:28,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-18 12:04:28,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:28,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-18 12:04:28,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:28,251 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 12:04:28,252 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [565053337] [2020-08-18 12:04:28,252 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 12:04:28,253 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-18 12:04:28,253 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403299157] [2020-08-18 12:04:28,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 12:04:28,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 12:04:28,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 12:04:28,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-18 12:04:28,255 INFO L87 Difference]: Start difference. First operand 254 states and 286 transitions. Second operand 7 states. [2020-08-18 12:04:28,922 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 12:04:29,469 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 12:04:31,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 12:04:31,569 INFO L93 Difference]: Finished difference Result 711 states and 879 transitions. [2020-08-18 12:04:31,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-18 12:04:31,569 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 98 [2020-08-18 12:04:31,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 12:04:31,573 INFO L225 Difference]: With dead ends: 711 [2020-08-18 12:04:31,573 INFO L226 Difference]: Without dead ends: 485 [2020-08-18 12:04:31,574 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 39 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-08-18 12:04:31,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2020-08-18 12:04:31,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 443. [2020-08-18 12:04:31,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2020-08-18 12:04:31,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 514 transitions. [2020-08-18 12:04:31,660 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 514 transitions. Word has length 98 [2020-08-18 12:04:31,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 12:04:31,661 INFO L479 AbstractCegarLoop]: Abstraction has 443 states and 514 transitions. [2020-08-18 12:04:31,661 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 12:04:31,661 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 514 transitions. [2020-08-18 12:04:31,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-08-18 12:04:31,663 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:04:31,663 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 12:04:31,663 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-18 12:04:31,663 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:04:31,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:04:31,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1661296137, now seen corresponding path program 1 times [2020-08-18 12:04:31,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:04:31,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1656639435] [2020-08-18 12:04:31,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:04:31,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:31,994 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 12:04:31,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:04:32,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:32,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 12:04:32,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:32,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 12:04:32,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:32,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 12:04:32,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:32,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 12:04:32,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:32,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 12:04:32,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:32,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 12:04:32,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:32,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 12:04:32,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:32,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:04:32,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:32,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-08-18 12:04:32,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:32,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:04:32,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:32,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:04:32,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:32,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:04:32,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:32,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 12:04:32,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:32,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 12:04:32,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:32,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-18 12:04:32,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:32,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-08-18 12:04:32,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:32,189 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 12:04:32,189 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1656639435] [2020-08-18 12:04:32,189 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 12:04:32,190 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-18 12:04:32,190 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683605100] [2020-08-18 12:04:32,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-18 12:04:32,191 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 12:04:32,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-18 12:04:32,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-08-18 12:04:32,191 INFO L87 Difference]: Start difference. First operand 443 states and 514 transitions. Second operand 12 states. [2020-08-18 12:04:32,706 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 12:04:33,344 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 12:04:34,441 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 12:04:34,722 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 12:04:34,971 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-18 12:04:35,235 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 12:04:35,484 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 12:04:36,838 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 12:04:37,088 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 12:04:38,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 12:04:38,018 INFO L93 Difference]: Finished difference Result 1230 states and 1515 transitions. [2020-08-18 12:04:38,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-08-18 12:04:38,020 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 102 [2020-08-18 12:04:38,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 12:04:38,026 INFO L225 Difference]: With dead ends: 1230 [2020-08-18 12:04:38,026 INFO L226 Difference]: Without dead ends: 894 [2020-08-18 12:04:38,028 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2020-08-18 12:04:38,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2020-08-18 12:04:38,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 769. [2020-08-18 12:04:38,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 769 states. [2020-08-18 12:04:38,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 883 transitions. [2020-08-18 12:04:38,171 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 883 transitions. Word has length 102 [2020-08-18 12:04:38,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 12:04:38,172 INFO L479 AbstractCegarLoop]: Abstraction has 769 states and 883 transitions. [2020-08-18 12:04:38,172 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-18 12:04:38,172 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 883 transitions. [2020-08-18 12:04:38,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-08-18 12:04:38,175 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:04:38,175 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:38,176 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-18 12:04:38,176 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:04:38,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:04:38,176 INFO L82 PathProgramCache]: Analyzing trace with hash -577396182, now seen corresponding path program 1 times [2020-08-18 12:04:38,177 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:04:38,177 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [832176955] [2020-08-18 12:04:38,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:04:38,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:38,525 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 12:04:38,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:04:38,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:38,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 12:04:38,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:38,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 12:04:38,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:38,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 12:04:38,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:38,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 12:04:38,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:38,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 12:04:38,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:38,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 12:04:38,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:38,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-18 12:04:38,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:38,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:04:38,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:38,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:04:38,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:38,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 12:04:38,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:38,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:04:38,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:38,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:04:38,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:38,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:04:38,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:38,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 12:04:38,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:38,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 12:04:38,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:38,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-18 12:04:38,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:38,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 12:04:38,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:38,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-08-18 12:04:38,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:38,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:04:38,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:38,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-08-18 12:04:38,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:38,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-18 12:04:38,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:38,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:04:38,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:38,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 12:04:38,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:38,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-18 12:04:38,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:38,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:04:38,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:38,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 12:04:38,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:38,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 12:04:38,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:38,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:04:38,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:38,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-08-18 12:04:38,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:38,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-08-18 12:04:38,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:38,930 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 22 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-08-18 12:04:38,930 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [832176955] [2020-08-18 12:04:38,931 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 12:04:38,931 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-18 12:04:38,931 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996323458] [2020-08-18 12:04:38,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-18 12:04:38,932 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 12:04:38,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-18 12:04:38,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-08-18 12:04:38,933 INFO L87 Difference]: Start difference. First operand 769 states and 883 transitions. Second operand 16 states. [2020-08-18 12:04:39,587 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-18 12:04:40,097 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-18 12:04:40,510 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-18 12:04:40,774 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-18 12:04:41,433 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-08-18 12:04:41,713 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-18 12:04:42,119 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-08-18 12:04:42,866 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 12:04:43,242 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-08-18 12:04:44,247 WARN L193 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-08-18 12:04:44,538 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-08-18 12:04:45,051 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-08-18 12:04:45,381 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-18 12:04:45,944 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 12:04:46,358 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-08-18 12:04:47,017 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-18 12:04:47,526 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 194 [2020-08-18 12:04:48,199 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 195 [2020-08-18 12:04:48,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 12:04:48,725 INFO L93 Difference]: Finished difference Result 1676 states and 1980 transitions. [2020-08-18 12:04:48,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-08-18 12:04:48,730 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 180 [2020-08-18 12:04:48,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 12:04:48,737 INFO L225 Difference]: With dead ends: 1676 [2020-08-18 12:04:48,737 INFO L226 Difference]: Without dead ends: 1010 [2020-08-18 12:04:48,741 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 765 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=618, Invalid=2462, Unknown=0, NotChecked=0, Total=3080 [2020-08-18 12:04:48,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1010 states. [2020-08-18 12:04:48,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1010 to 917. [2020-08-18 12:04:48,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 917 states. [2020-08-18 12:04:48,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1061 transitions. [2020-08-18 12:04:48,909 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1061 transitions. Word has length 180 [2020-08-18 12:04:48,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 12:04:48,909 INFO L479 AbstractCegarLoop]: Abstraction has 917 states and 1061 transitions. [2020-08-18 12:04:48,910 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-18 12:04:48,910 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1061 transitions. [2020-08-18 12:04:48,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2020-08-18 12:04:48,916 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:04:48,917 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, 3, 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, 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] [2020-08-18 12:04:48,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-18 12:04:48,917 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:04:48,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:04:48,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1633838389, now seen corresponding path program 1 times [2020-08-18 12:04:48,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:04:48,918 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1528492985] [2020-08-18 12:04:48,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:04:48,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,235 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 12:04:49,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:04:49,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 12:04:49,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 12:04:49,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 12:04:49,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 12:04:49,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 12:04:49,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 12:04:49,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-18 12:04:49,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:04:49,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:04:49,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 12:04:49,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:04:49,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:04:49,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:04:49,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 12:04:49,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 12:04:49,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-18 12:04:49,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 12:04:49,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-08-18 12:04:49,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:04:49,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:04:49,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 12:04:49,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-18 12:04:49,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:04:49,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 12:04:49,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-18 12:04:49,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:04:49,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 12:04:49,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 12:04:49,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:04:49,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-18 12:04:49,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 12:04:49,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-08-18 12:04:49,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:04:49,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:04:49,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 12:04:49,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-18 12:04:49,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:04:49,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 12:04:49,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-18 12:04:49,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-18 12:04:49,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 12:04:49,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2020-08-18 12:04:49,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2020-08-18 12:04:49,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:04:49,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-08-18 12:04:49,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:04:49,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:04:49,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:04:49,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 12:04:49,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 12:04:49,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2020-08-18 12:04:49,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2020-08-18 12:04:49,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:49,778 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 84 proven. 29 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2020-08-18 12:04:49,779 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1528492985] [2020-08-18 12:04:49,779 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 12:04:49,779 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-08-18 12:04:49,780 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727125354] [2020-08-18 12:04:49,781 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-08-18 12:04:49,781 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 12:04:49,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-08-18 12:04:49,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2020-08-18 12:04:49,783 INFO L87 Difference]: Start difference. First operand 917 states and 1061 transitions. Second operand 15 states. [2020-08-18 12:04:51,418 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 12:04:51,690 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-18 12:04:51,932 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-18 12:04:52,168 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 12:04:53,661 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-18 12:04:54,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 12:04:54,422 INFO L93 Difference]: Finished difference Result 2399 states and 2887 transitions. [2020-08-18 12:04:54,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-08-18 12:04:54,428 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 305 [2020-08-18 12:04:54,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 12:04:54,437 INFO L225 Difference]: With dead ends: 2399 [2020-08-18 12:04:54,438 INFO L226 Difference]: Without dead ends: 1409 [2020-08-18 12:04:54,441 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 109 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=230, Invalid=762, Unknown=0, NotChecked=0, Total=992 [2020-08-18 12:04:54,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1409 states. [2020-08-18 12:04:54,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1409 to 1197. [2020-08-18 12:04:54,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1197 states. [2020-08-18 12:04:54,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1197 states to 1197 states and 1415 transitions. [2020-08-18 12:04:54,706 INFO L78 Accepts]: Start accepts. Automaton has 1197 states and 1415 transitions. Word has length 305 [2020-08-18 12:04:54,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 12:04:54,709 INFO L479 AbstractCegarLoop]: Abstraction has 1197 states and 1415 transitions. [2020-08-18 12:04:54,709 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-08-18 12:04:54,710 INFO L276 IsEmpty]: Start isEmpty. Operand 1197 states and 1415 transitions. [2020-08-18 12:04:54,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2020-08-18 12:04:54,719 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:04:54,720 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, 3, 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, 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] [2020-08-18 12:04:54,720 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-18 12:04:54,720 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:04:54,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:04:54,720 INFO L82 PathProgramCache]: Analyzing trace with hash 1189478218, now seen corresponding path program 1 times [2020-08-18 12:04:54,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:04:54,721 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1127469650] [2020-08-18 12:04:54,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:04:54,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,097 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 12:04:55,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:04:55,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 12:04:55,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 12:04:55,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 12:04:55,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 12:04:55,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 12:04:55,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 12:04:55,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-18 12:04:55,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:04:55,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:04:55,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 12:04:55,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:04:55,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:04:55,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:04:55,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 12:04:55,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 12:04:55,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-18 12:04:55,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 12:04:55,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-08-18 12:04:55,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:04:55,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:04:55,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 12:04:55,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-18 12:04:55,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:04:55,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 12:04:55,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-18 12:04:55,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:04:55,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 12:04:55,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 12:04:55,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:04:55,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-18 12:04:55,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 12:04:55,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-18 12:04:55,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-08-18 12:04:55,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:04:55,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:04:55,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 12:04:55,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-18 12:04:55,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:04:55,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 12:04:55,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-18 12:04:55,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-18 12:04:55,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 12:04:55,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-08-18 12:04:55,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:04:55,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-08-18 12:04:55,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:04:55,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:04:55,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:04:55,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 12:04:55,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 12:04:55,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2020-08-18 12:04:55,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2020-08-18 12:04:55,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:04:55,531 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 90 proven. 42 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2020-08-18 12:04:55,532 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1127469650] [2020-08-18 12:04:55,532 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 12:04:55,532 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-18 12:04:55,532 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622907139] [2020-08-18 12:04:55,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-18 12:04:55,534 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 12:04:55,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-18 12:04:55,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2020-08-18 12:04:55,535 INFO L87 Difference]: Start difference. First operand 1197 states and 1415 transitions. Second operand 16 states. [2020-08-18 12:04:56,190 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 12:04:56,494 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-18 12:04:56,744 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-18 12:04:56,989 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-18 12:04:57,723 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 12:04:58,589 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 12:04:58,961 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 12:04:59,230 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 12:04:59,900 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 12:05:00,914 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 12:05:01,176 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 12:05:01,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 12:05:01,714 INFO L93 Difference]: Finished difference Result 2270 states and 2722 transitions. [2020-08-18 12:05:01,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-08-18 12:05:01,715 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 307 [2020-08-18 12:05:01,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 12:05:01,723 INFO L225 Difference]: With dead ends: 2270 [2020-08-18 12:05:01,723 INFO L226 Difference]: Without dead ends: 1199 [2020-08-18 12:05:01,727 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=297, Invalid=1185, Unknown=0, NotChecked=0, Total=1482 [2020-08-18 12:05:01,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1199 states. [2020-08-18 12:05:01,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1199 to 1149. [2020-08-18 12:05:01,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1149 states. [2020-08-18 12:05:01,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1149 states to 1149 states and 1341 transitions. [2020-08-18 12:05:01,973 INFO L78 Accepts]: Start accepts. Automaton has 1149 states and 1341 transitions. Word has length 307 [2020-08-18 12:05:01,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 12:05:01,974 INFO L479 AbstractCegarLoop]: Abstraction has 1149 states and 1341 transitions. [2020-08-18 12:05:01,974 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-18 12:05:01,974 INFO L276 IsEmpty]: Start isEmpty. Operand 1149 states and 1341 transitions. [2020-08-18 12:05:01,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-08-18 12:05:01,983 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:05:01,983 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, 3, 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, 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] [2020-08-18 12:05:01,983 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-18 12:05:01,983 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:05:01,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:05:01,984 INFO L82 PathProgramCache]: Analyzing trace with hash 491352727, now seen corresponding path program 1 times [2020-08-18 12:05:01,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:05:01,984 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1863988007] [2020-08-18 12:05:01,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:05:02,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,302 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 12:05:02,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:05:02,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 12:05:02,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 12:05:02,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 12:05:02,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 12:05:02,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 12:05:02,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 12:05:02,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-18 12:05:02,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:05:02,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:05:02,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 12:05:02,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:05:02,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:05:02,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:05:02,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 12:05:02,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 12:05:02,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-18 12:05:02,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 12:05:02,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-08-18 12:05:02,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:05:02,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:05:02,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 12:05:02,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-18 12:05:02,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:05:02,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 12:05:02,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-18 12:05:02,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:05:02,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 12:05:02,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 12:05:02,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:05:02,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-18 12:05:02,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 12:05:02,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-18 12:05:02,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-08-18 12:05:02,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:05:02,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:05:02,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 12:05:02,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-18 12:05:02,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:05:02,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 12:05:02,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-18 12:05:02,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-18 12:05:02,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 12:05:02,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2020-08-18 12:05:02,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:05:02,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2020-08-18 12:05:02,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:05:02,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:05:02,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 12:05:02,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 12:05:02,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 12:05:02,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2020-08-18 12:05:02,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2020-08-18 12:05:02,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:02,707 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 71 proven. 11 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2020-08-18 12:05:02,708 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1863988007] [2020-08-18 12:05:02,708 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 12:05:02,708 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-18 12:05:02,708 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527559418] [2020-08-18 12:05:02,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-18 12:05:02,710 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 12:05:02,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-18 12:05:02,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2020-08-18 12:05:02,711 INFO L87 Difference]: Start difference. First operand 1149 states and 1341 transitions. Second operand 16 states.