/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product64.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 03:31:02,234 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 03:31:02,236 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 03:31:02,264 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 03:31:02,265 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 03:31:02,266 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 03:31:02,267 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 03:31:02,269 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 03:31:02,271 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 03:31:02,271 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 03:31:02,272 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 03:31:02,273 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 03:31:02,274 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 03:31:02,275 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 03:31:02,276 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 03:31:02,277 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 03:31:02,278 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 03:31:02,279 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 03:31:02,281 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 03:31:02,283 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 03:31:02,285 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 03:31:02,286 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 03:31:02,287 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 03:31:02,288 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 03:31:02,291 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 03:31:02,291 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 03:31:02,291 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 03:31:02,292 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 03:31:02,293 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 03:31:02,294 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 03:31:02,294 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 03:31:02,295 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 03:31:02,296 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 03:31:02,296 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 03:31:02,297 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 03:31:02,298 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 03:31:02,298 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 03:31:02,299 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 03:31:02,299 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 03:31:02,300 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 03:31:02,300 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 03:31:02,301 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-19 03:31:02,325 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 03:31:02,325 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 03:31:02,326 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 03:31:02,327 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 03:31:02,327 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 03:31:02,327 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 03:31:02,327 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 03:31:02,328 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 03:31:02,328 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 03:31:02,328 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 03:31:02,328 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 03:31:02,328 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 03:31:02,328 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 03:31:02,329 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 03:31:02,329 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 03:31:02,329 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 03:31:02,329 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 03:31:02,329 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 03:31:02,330 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 03:31:02,330 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 03:31:02,330 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 03:31:02,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 03:31:02,330 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 03:31:02,331 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 03:31:02,331 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 03:31:02,331 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 03:31:02,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 03:31:02,332 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 03:31:02,332 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 03:31:02,332 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=SMALLESTAMONGWIDE;tolerance=0.1; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1; [2020-08-19 03:31:02,634 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 03:31:02,646 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 03:31:02,649 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 03:31:02,651 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 03:31:02,651 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 03:31:02,652 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product64.cil.c [2020-08-19 03:31:02,719 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/885bb7a45/a3267f747a0d45a991360752e7f6deb0/FLAGd4e45a5c2 [2020-08-19 03:31:03,248 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 03:31:03,249 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product64.cil.c [2020-08-19 03:31:03,273 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/885bb7a45/a3267f747a0d45a991360752e7f6deb0/FLAGd4e45a5c2 [2020-08-19 03:31:03,514 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/885bb7a45/a3267f747a0d45a991360752e7f6deb0 [2020-08-19 03:31:03,525 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 03:31:03,527 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 03:31:03,528 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 03:31:03,528 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 03:31:03,532 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 03:31:03,533 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 03:31:03" (1/1) ... [2020-08-19 03:31:03,536 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42c954cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:31:03, skipping insertion in model container [2020-08-19 03:31:03,536 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 03:31:03" (1/1) ... [2020-08-19 03:31:03,544 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 03:31:03,592 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 03:31:04,030 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 03:31:04,043 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 03:31:04,144 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 03:31:04,182 INFO L208 MainTranslator]: Completed translation [2020-08-19 03:31:04,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:31:04 WrapperNode [2020-08-19 03:31:04,183 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 03:31:04,184 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 03:31:04,184 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 03:31:04,184 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 03:31:04,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:31:04" (1/1) ... [2020-08-19 03:31:04,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:31:04" (1/1) ... [2020-08-19 03:31:04,215 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:31:04" (1/1) ... [2020-08-19 03:31:04,216 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:31:04" (1/1) ... [2020-08-19 03:31:04,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:31:04" (1/1) ... [2020-08-19 03:31:04,261 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:31:04" (1/1) ... [2020-08-19 03:31:04,268 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:31:04" (1/1) ... [2020-08-19 03:31:04,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 03:31:04,276 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 03:31:04,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 03:31:04,277 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 03:31:04,278 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:31:04" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 03:31:04,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 03:31:04,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 03:31:04,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-19 03:31:04,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-08-19 03:31:04,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-08-19 03:31:04,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-08-19 03:31:04,351 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-19 03:31:04,351 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-19 03:31:04,352 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-19 03:31:04,352 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-08-19 03:31:04,352 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-08-19 03:31:04,352 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-19 03:31:04,352 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-08-19 03:31:04,353 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-19 03:31:04,353 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-19 03:31:04,353 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-19 03:31:04,353 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-19 03:31:04,353 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-19 03:31:04,353 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-19 03:31:04,354 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-19 03:31:04,354 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-19 03:31:04,354 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-19 03:31:04,354 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-19 03:31:04,354 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-19 03:31:04,354 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-19 03:31:04,355 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-19 03:31:04,355 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-19 03:31:04,355 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-19 03:31:04,355 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-19 03:31:04,355 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-19 03:31:04,355 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-19 03:31:04,356 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-19 03:31:04,356 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-19 03:31:04,356 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-19 03:31:04,356 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 03:31:04,356 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-19 03:31:04,356 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-19 03:31:04,356 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-19 03:31:04,357 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-19 03:31:04,357 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-19 03:31:04,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-19 03:31:04,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-19 03:31:04,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-19 03:31:04,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-19 03:31:04,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-19 03:31:04,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-19 03:31:04,358 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 03:31:04,358 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 03:31:04,358 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-19 03:31:04,358 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-19 03:31:04,358 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-19 03:31:04,359 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-19 03:31:04,359 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-08-19 03:31:04,359 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-08-19 03:31:04,359 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-08-19 03:31:04,359 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-19 03:31:04,359 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-19 03:31:04,360 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-19 03:31:04,360 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-19 03:31:04,360 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-19 03:31:04,360 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-19 03:31:04,360 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-19 03:31:04,360 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-19 03:31:04,361 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-19 03:31:04,361 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-19 03:31:04,361 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-19 03:31:04,361 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-19 03:31:04,361 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-19 03:31:04,361 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-19 03:31:04,362 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-19 03:31:04,362 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-19 03:31:04,362 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-19 03:31:04,362 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-19 03:31:04,362 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-08-19 03:31:04,362 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-19 03:31:04,362 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-08-19 03:31:04,363 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-19 03:31:04,363 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-08-19 03:31:04,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 03:31:04,363 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-19 03:31:04,363 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-19 03:31:04,363 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-19 03:31:04,364 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-19 03:31:04,364 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-19 03:31:04,364 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-19 03:31:04,364 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 03:31:04,364 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-19 03:31:04,364 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-19 03:31:04,365 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-19 03:31:04,365 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-19 03:31:04,365 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-19 03:31:04,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-19 03:31:04,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-19 03:31:04,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 03:31:04,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-19 03:31:04,366 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-19 03:31:04,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 03:31:04,366 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-19 03:31:04,366 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-19 03:31:04,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 03:31:04,366 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-19 03:31:04,367 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-19 03:31:04,367 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-19 03:31:04,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 03:31:04,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-19 03:31:04,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 03:31:05,617 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 03:31:05,617 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-19 03:31:05,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 03:31:05 BoogieIcfgContainer [2020-08-19 03:31:05,623 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 03:31:05,625 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 03:31:05,625 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 03:31:05,628 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 03:31:05,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 03:31:03" (1/3) ... [2020-08-19 03:31:05,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c108d16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 03:31:05, skipping insertion in model container [2020-08-19 03:31:05,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:31:04" (2/3) ... [2020-08-19 03:31:05,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c108d16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 03:31:05, skipping insertion in model container [2020-08-19 03:31:05,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 03:31:05" (3/3) ... [2020-08-19 03:31:05,632 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product64.cil.c [2020-08-19 03:31:05,644 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 03:31:05,652 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 03:31:05,668 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 03:31:05,695 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 03:31:05,695 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 03:31:05,696 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 03:31:05,696 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 03:31:05,696 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 03:31:05,696 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 03:31:05,697 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 03:31:05,697 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 03:31:05,720 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2020-08-19 03:31:05,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-08-19 03:31:05,731 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:31:05,732 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] [2020-08-19 03:31:05,733 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:31:05,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:31:05,739 INFO L82 PathProgramCache]: Analyzing trace with hash -304783320, now seen corresponding path program 1 times [2020-08-19 03:31:05,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:31:05,748 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [287506770] [2020-08-19 03:31:05,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:31:05,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:06,376 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:31:06,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:06,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:06,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:31:06,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:06,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:31:06,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:06,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:31:06,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:06,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:31:06,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:06,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 03:31:06,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:06,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 03:31:06,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:06,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:06,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:06,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-19 03:31:06,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:06,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-19 03:31:06,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:06,559 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 03:31:06,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [287506770] [2020-08-19 03:31:06,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 03:31:06,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-19 03:31:06,564 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424268342] [2020-08-19 03:31:06,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-19 03:31:06,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:31:06,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-19 03:31:06,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-19 03:31:06,589 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 4 states. [2020-08-19 03:31:07,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:31:07,999 INFO L93 Difference]: Finished difference Result 382 states and 489 transitions. [2020-08-19 03:31:07,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-19 03:31:08,001 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-08-19 03:31:08,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:31:08,017 INFO L225 Difference]: With dead ends: 382 [2020-08-19 03:31:08,017 INFO L226 Difference]: Without dead ends: 210 [2020-08-19 03:31:08,022 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 [2020-08-19 03:31:08,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2020-08-19 03:31:08,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 173. [2020-08-19 03:31:08,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2020-08-19 03:31:08,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 205 transitions. [2020-08-19 03:31:08,142 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 205 transitions. Word has length 59 [2020-08-19 03:31:08,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:31:08,142 INFO L479 AbstractCegarLoop]: Abstraction has 173 states and 205 transitions. [2020-08-19 03:31:08,142 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-19 03:31:08,143 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 205 transitions. [2020-08-19 03:31:08,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-08-19 03:31:08,147 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:31:08,147 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] [2020-08-19 03:31:08,147 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 03:31:08,148 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:31:08,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:31:08,148 INFO L82 PathProgramCache]: Analyzing trace with hash -511503066, now seen corresponding path program 1 times [2020-08-19 03:31:08,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:31:08,149 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [489234855] [2020-08-19 03:31:08,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:31:08,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:08,528 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:31:08,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:08,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:08,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:31:08,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:08,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:31:08,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:08,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:31:08,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:08,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:31:08,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:08,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 03:31:08,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:08,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-19 03:31:08,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:08,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:08,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:08,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-19 03:31:08,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:08,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-19 03:31:08,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:08,618 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 03:31:08,619 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [489234855] [2020-08-19 03:31:08,619 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 03:31:08,619 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-19 03:31:08,620 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889414859] [2020-08-19 03:31:08,622 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-19 03:31:08,622 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:31:08,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-19 03:31:08,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-19 03:31:08,623 INFO L87 Difference]: Start difference. First operand 173 states and 205 transitions. Second operand 5 states. [2020-08-19 03:31:09,140 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:31:10,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:31:10,377 INFO L93 Difference]: Finished difference Result 317 states and 389 transitions. [2020-08-19 03:31:10,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-19 03:31:10,378 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2020-08-19 03:31:10,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:31:10,383 INFO L225 Difference]: With dead ends: 317 [2020-08-19 03:31:10,383 INFO L226 Difference]: Without dead ends: 200 [2020-08-19 03:31:10,385 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-19 03:31:10,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-08-19 03:31:10,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 164. [2020-08-19 03:31:10,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-08-19 03:31:10,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 193 transitions. [2020-08-19 03:31:10,433 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 193 transitions. Word has length 60 [2020-08-19 03:31:10,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:31:10,434 INFO L479 AbstractCegarLoop]: Abstraction has 164 states and 193 transitions. [2020-08-19 03:31:10,434 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-19 03:31:10,434 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 193 transitions. [2020-08-19 03:31:10,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-08-19 03:31:10,436 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:31:10,436 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] [2020-08-19 03:31:10,437 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 03:31:10,437 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:31:10,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:31:10,437 INFO L82 PathProgramCache]: Analyzing trace with hash 1192401668, now seen corresponding path program 1 times [2020-08-19 03:31:10,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:31:10,438 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2097501005] [2020-08-19 03:31:10,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:31:10,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:10,812 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:31:10,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:10,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:10,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:31:10,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:10,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:31:10,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:10,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:31:10,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:10,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:31:10,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:10,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 03:31:10,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:10,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 03:31:10,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:10,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:10,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:10,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-19 03:31:10,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:10,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-19 03:31:10,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:10,960 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 03:31:10,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2097501005] [2020-08-19 03:31:10,961 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 03:31:10,962 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 03:31:10,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054308759] [2020-08-19 03:31:10,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 03:31:10,963 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:31:10,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 03:31:10,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-19 03:31:10,964 INFO L87 Difference]: Start difference. First operand 164 states and 193 transitions. Second operand 9 states. [2020-08-19 03:31:11,374 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:31:11,689 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 03:31:11,944 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 03:31:12,204 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 03:31:13,094 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:31:15,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:31:15,527 INFO L93 Difference]: Finished difference Result 549 states and 680 transitions. [2020-08-19 03:31:15,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-19 03:31:15,529 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2020-08-19 03:31:15,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:31:15,535 INFO L225 Difference]: With dead ends: 549 [2020-08-19 03:31:15,535 INFO L226 Difference]: Without dead ends: 413 [2020-08-19 03:31:15,537 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-08-19 03:31:15,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2020-08-19 03:31:15,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 344. [2020-08-19 03:31:15,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2020-08-19 03:31:15,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 418 transitions. [2020-08-19 03:31:15,635 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 418 transitions. Word has length 65 [2020-08-19 03:31:15,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:31:15,636 INFO L479 AbstractCegarLoop]: Abstraction has 344 states and 418 transitions. [2020-08-19 03:31:15,636 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 03:31:15,636 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 418 transitions. [2020-08-19 03:31:15,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-08-19 03:31:15,638 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:31:15,639 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] [2020-08-19 03:31:15,639 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 03:31:15,639 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:31:15,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:31:15,640 INFO L82 PathProgramCache]: Analyzing trace with hash 1231670033, now seen corresponding path program 1 times [2020-08-19 03:31:15,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:31:15,640 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [867599455] [2020-08-19 03:31:15,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:31:15,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:15,964 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:31:15,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:15,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:16,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:31:16,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:16,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:31:16,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:16,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:31:16,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:16,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:31:16,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:16,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 03:31:16,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:16,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 03:31:16,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:16,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-19 03:31:16,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:16,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:16,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:16,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-19 03:31:16,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:16,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-19 03:31:16,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:16,087 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-19 03:31:16,088 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [867599455] [2020-08-19 03:31:16,088 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 03:31:16,088 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 03:31:16,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970409399] [2020-08-19 03:31:16,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 03:31:16,089 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:31:16,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 03:31:16,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-19 03:31:16,090 INFO L87 Difference]: Start difference. First operand 344 states and 418 transitions. Second operand 9 states. [2020-08-19 03:31:16,513 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:31:17,267 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 03:31:18,307 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 03:31:18,550 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 03:31:18,861 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:31:19,172 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:31:20,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:31:20,205 INFO L93 Difference]: Finished difference Result 891 states and 1152 transitions. [2020-08-19 03:31:20,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-19 03:31:20,206 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-08-19 03:31:20,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:31:20,212 INFO L225 Difference]: With dead ends: 891 [2020-08-19 03:31:20,212 INFO L226 Difference]: Without dead ends: 575 [2020-08-19 03:31:20,214 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-08-19 03:31:20,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2020-08-19 03:31:20,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 507. [2020-08-19 03:31:20,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 507 states. [2020-08-19 03:31:20,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 605 transitions. [2020-08-19 03:31:20,316 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 605 transitions. Word has length 70 [2020-08-19 03:31:20,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:31:20,317 INFO L479 AbstractCegarLoop]: Abstraction has 507 states and 605 transitions. [2020-08-19 03:31:20,317 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 03:31:20,317 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 605 transitions. [2020-08-19 03:31:20,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-08-19 03:31:20,320 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:31:20,320 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 03:31:20,320 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 03:31:20,320 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:31:20,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:31:20,321 INFO L82 PathProgramCache]: Analyzing trace with hash 853087743, now seen corresponding path program 1 times [2020-08-19 03:31:20,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:31:20,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1669724846] [2020-08-19 03:31:20,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:31:20,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:20,607 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:31:20,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:20,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:20,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:31:20,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:20,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:31:20,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:20,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:31:20,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:20,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:31:20,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:20,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 03:31:20,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:20,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 03:31:20,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:20,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:20,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:20,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-19 03:31:20,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:20,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:20,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:20,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:20,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:20,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:20,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:20,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:20,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:20,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 03:31:20,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:20,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:20,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:20,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:20,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:20,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:31:20,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:20,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-19 03:31:20,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:20,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-19 03:31:20,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:20,789 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 03:31:20,790 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1669724846] [2020-08-19 03:31:20,790 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 03:31:20,790 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 03:31:20,790 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971285110] [2020-08-19 03:31:20,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 03:31:20,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:31:20,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 03:31:20,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-19 03:31:20,792 INFO L87 Difference]: Start difference. First operand 507 states and 605 transitions. Second operand 9 states. [2020-08-19 03:31:21,957 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 03:31:22,194 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-19 03:31:22,505 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:31:22,750 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:31:23,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:31:23,708 INFO L93 Difference]: Finished difference Result 1079 states and 1378 transitions. [2020-08-19 03:31:23,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-19 03:31:23,709 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 113 [2020-08-19 03:31:23,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:31:23,714 INFO L225 Difference]: With dead ends: 1079 [2020-08-19 03:31:23,715 INFO L226 Difference]: Without dead ends: 600 [2020-08-19 03:31:23,717 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-08-19 03:31:23,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2020-08-19 03:31:23,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 520. [2020-08-19 03:31:23,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 520 states. [2020-08-19 03:31:23,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 619 transitions. [2020-08-19 03:31:23,806 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 619 transitions. Word has length 113 [2020-08-19 03:31:23,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:31:23,807 INFO L479 AbstractCegarLoop]: Abstraction has 520 states and 619 transitions. [2020-08-19 03:31:23,807 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 03:31:23,807 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 619 transitions. [2020-08-19 03:31:23,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-08-19 03:31:23,809 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:31:23,810 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 03:31:23,810 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-19 03:31:23,810 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:31:23,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:31:23,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1502717507, now seen corresponding path program 1 times [2020-08-19 03:31:23,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:31:23,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1694110221] [2020-08-19 03:31:23,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:31:23,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:24,091 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:31:24,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:24,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:24,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:31:24,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:24,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:31:24,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:24,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:31:24,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:24,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:31:24,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:24,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 03:31:24,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:24,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 03:31:24,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:24,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:24,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:24,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-19 03:31:24,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:24,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:24,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:24,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:24,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:24,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:24,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:24,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:24,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:24,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 03:31:24,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:24,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:24,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:24,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:24,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:24,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:31:24,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:24,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-19 03:31:24,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:24,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-19 03:31:24,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:24,252 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 03:31:24,252 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1694110221] [2020-08-19 03:31:24,253 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 03:31:24,253 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-19 03:31:24,253 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543696221] [2020-08-19 03:31:24,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-19 03:31:24,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:31:24,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-19 03:31:24,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-08-19 03:31:24,255 INFO L87 Difference]: Start difference. First operand 520 states and 619 transitions. Second operand 11 states. [2020-08-19 03:31:24,787 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:31:25,050 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:31:25,288 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:31:26,198 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:31:26,536 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:31:26,776 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:31:28,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:31:28,020 INFO L93 Difference]: Finished difference Result 1102 states and 1402 transitions. [2020-08-19 03:31:28,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-19 03:31:28,021 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 113 [2020-08-19 03:31:28,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:31:28,025 INFO L225 Difference]: With dead ends: 1102 [2020-08-19 03:31:28,026 INFO L226 Difference]: Without dead ends: 610 [2020-08-19 03:31:28,028 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-08-19 03:31:28,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2020-08-19 03:31:28,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 528. [2020-08-19 03:31:28,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-08-19 03:31:28,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 627 transitions. [2020-08-19 03:31:28,136 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 627 transitions. Word has length 113 [2020-08-19 03:31:28,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:31:28,137 INFO L479 AbstractCegarLoop]: Abstraction has 528 states and 627 transitions. [2020-08-19 03:31:28,137 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-19 03:31:28,137 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 627 transitions. [2020-08-19 03:31:28,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-08-19 03:31:28,141 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:31:28,142 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 03:31:28,142 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-19 03:31:28,142 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:31:28,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:31:28,143 INFO L82 PathProgramCache]: Analyzing trace with hash -733547492, now seen corresponding path program 1 times [2020-08-19 03:31:28,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:31:28,144 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1491883122] [2020-08-19 03:31:28,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:31:28,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:28,448 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:31:28,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:28,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:28,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:31:28,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:28,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:31:28,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:28,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:31:28,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:28,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:31:28,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:28,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 03:31:28,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:28,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 03:31:28,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:28,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:28,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:28,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-19 03:31:28,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:28,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:28,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:28,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:28,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:28,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:28,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:28,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:28,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:28,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 03:31:28,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:28,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:28,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:28,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:28,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:28,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:31:28,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:28,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-19 03:31:28,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:28,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-19 03:31:28,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:28,619 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 03:31:28,620 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1491883122] [2020-08-19 03:31:28,624 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 03:31:28,624 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-19 03:31:28,625 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680284264] [2020-08-19 03:31:28,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-19 03:31:28,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:31:28,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-19 03:31:28,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-19 03:31:28,627 INFO L87 Difference]: Start difference. First operand 528 states and 627 transitions. Second operand 7 states. [2020-08-19 03:31:29,304 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:31:29,875 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:31:32,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:31:32,746 INFO L93 Difference]: Finished difference Result 1603 states and 2056 transitions. [2020-08-19 03:31:32,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-19 03:31:32,747 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 113 [2020-08-19 03:31:32,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:31:32,757 INFO L225 Difference]: With dead ends: 1603 [2020-08-19 03:31:32,757 INFO L226 Difference]: Without dead ends: 1103 [2020-08-19 03:31:32,761 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 45 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-08-19 03:31:32,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1103 states. [2020-08-19 03:31:32,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1103 to 1025. [2020-08-19 03:31:32,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1025 states. [2020-08-19 03:31:32,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1239 transitions. [2020-08-19 03:31:32,961 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1239 transitions. Word has length 113 [2020-08-19 03:31:32,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:31:32,962 INFO L479 AbstractCegarLoop]: Abstraction has 1025 states and 1239 transitions. [2020-08-19 03:31:32,962 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-19 03:31:32,962 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1239 transitions. [2020-08-19 03:31:32,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-08-19 03:31:32,964 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:31:32,964 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 03:31:32,965 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-19 03:31:32,965 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:31:32,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:31:32,965 INFO L82 PathProgramCache]: Analyzing trace with hash 216342370, now seen corresponding path program 1 times [2020-08-19 03:31:32,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:31:32,966 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [98625125] [2020-08-19 03:31:32,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:31:33,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:33,310 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:31:33,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:33,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:33,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:31:33,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:33,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:31:33,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:33,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:31:33,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:33,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:31:33,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:33,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 03:31:33,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:33,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 03:31:33,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:33,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-19 03:31:33,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:33,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:33,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:33,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-08-19 03:31:33,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:33,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:33,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:33,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:33,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:33,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:33,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:33,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:33,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:33,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 03:31:33,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:33,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:33,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:33,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:33,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:33,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:31:33,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:33,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-19 03:31:33,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:33,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-08-19 03:31:33,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:33,519 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-19 03:31:33,520 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [98625125] [2020-08-19 03:31:33,520 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 03:31:33,520 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-19 03:31:33,520 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94415325] [2020-08-19 03:31:33,521 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-19 03:31:33,521 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:31:33,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-19 03:31:33,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-08-19 03:31:33,522 INFO L87 Difference]: Start difference. First operand 1025 states and 1239 transitions. Second operand 12 states. [2020-08-19 03:31:34,039 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:31:34,717 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:31:35,519 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 03:31:35,856 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 03:31:36,114 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 03:31:36,408 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 03:31:36,688 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 03:31:38,978 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:31:39,306 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:31:40,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:31:40,164 INFO L93 Difference]: Finished difference Result 2915 states and 3744 transitions. [2020-08-19 03:31:40,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-08-19 03:31:40,164 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 117 [2020-08-19 03:31:40,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:31:40,177 INFO L225 Difference]: With dead ends: 2915 [2020-08-19 03:31:40,178 INFO L226 Difference]: Without dead ends: 2120 [2020-08-19 03:31:40,182 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2020-08-19 03:31:40,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2120 states. [2020-08-19 03:31:40,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2120 to 1808. [2020-08-19 03:31:40,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1808 states. [2020-08-19 03:31:40,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1808 states to 1808 states and 2166 transitions. [2020-08-19 03:31:40,585 INFO L78 Accepts]: Start accepts. Automaton has 1808 states and 2166 transitions. Word has length 117 [2020-08-19 03:31:40,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:31:40,586 INFO L479 AbstractCegarLoop]: Abstraction has 1808 states and 2166 transitions. [2020-08-19 03:31:40,586 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-19 03:31:40,586 INFO L276 IsEmpty]: Start isEmpty. Operand 1808 states and 2166 transitions. [2020-08-19 03:31:40,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-08-19 03:31:40,595 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:31:40,596 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1] [2020-08-19 03:31:40,596 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-19 03:31:40,596 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:31:40,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:31:40,597 INFO L82 PathProgramCache]: Analyzing trace with hash -1963590153, now seen corresponding path program 1 times [2020-08-19 03:31:40,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:31:40,597 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1634184490] [2020-08-19 03:31:40,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:31:40,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:40,966 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:31:40,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:40,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:40,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:31:40,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:40,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:31:40,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:40,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:31:40,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:41,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:31:41,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:41,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 03:31:41,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:41,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 03:31:41,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:41,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-19 03:31:41,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:41,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:41,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:41,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:41,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:41,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 03:31:41,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:41,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:41,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:41,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:41,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:41,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:41,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:41,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:41,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:41,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 03:31:41,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:41,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:41,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:41,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:41,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:41,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:31:41,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:41,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-19 03:31:41,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:41,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:41,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:41,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-19 03:31:41,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:41,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:41,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:41,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-19 03:31:41,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:41,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-08-19 03:31:41,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:41,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:41,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:41,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:41,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:41,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 03:31:41,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:41,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:41,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:41,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:41,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:41,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 03:31:41,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:41,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:41,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:41,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-08-19 03:31:41,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:41,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-08-19 03:31:41,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:41,442 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 22 proven. 10 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-08-19 03:31:41,442 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1634184490] [2020-08-19 03:31:41,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 03:31:41,443 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-19 03:31:41,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711669200] [2020-08-19 03:31:41,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-19 03:31:41,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:31:41,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-19 03:31:41,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-08-19 03:31:41,446 INFO L87 Difference]: Start difference. First operand 1808 states and 2166 transitions. Second operand 16 states. [2020-08-19 03:31:42,373 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 03:31:42,719 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-19 03:31:42,992 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-19 03:31:43,237 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-19 03:31:43,947 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:31:44,265 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:31:44,639 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-19 03:31:44,973 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-19 03:31:46,507 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:31:47,124 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 03:31:47,421 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 03:31:47,777 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 03:31:48,333 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:31:48,751 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 03:31:49,514 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 03:31:49,808 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-19 03:31:50,480 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-19 03:31:51,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:31:51,419 INFO L93 Difference]: Finished difference Result 3877 states and 4776 transitions. [2020-08-19 03:31:51,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-08-19 03:31:51,420 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 195 [2020-08-19 03:31:51,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:31:51,434 INFO L225 Difference]: With dead ends: 3877 [2020-08-19 03:31:51,434 INFO L226 Difference]: Without dead ends: 2287 [2020-08-19 03:31:51,441 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 665 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=589, Invalid=2167, Unknown=0, NotChecked=0, Total=2756 [2020-08-19 03:31:51,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2287 states. [2020-08-19 03:31:51,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2287 to 2095. [2020-08-19 03:31:51,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2095 states. [2020-08-19 03:31:51,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2095 states to 2095 states and 2456 transitions. [2020-08-19 03:31:51,854 INFO L78 Accepts]: Start accepts. Automaton has 2095 states and 2456 transitions. Word has length 195 [2020-08-19 03:31:51,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:31:51,857 INFO L479 AbstractCegarLoop]: Abstraction has 2095 states and 2456 transitions. [2020-08-19 03:31:51,857 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-19 03:31:51,857 INFO L276 IsEmpty]: Start isEmpty. Operand 2095 states and 2456 transitions. [2020-08-19 03:31:51,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2020-08-19 03:31:51,868 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:31:51,869 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1] [2020-08-19 03:31:51,869 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-19 03:31:51,869 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:31:51,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:31:51,870 INFO L82 PathProgramCache]: Analyzing trace with hash 905718191, now seen corresponding path program 1 times [2020-08-19 03:31:51,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:31:51,870 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [389278771] [2020-08-19 03:31:51,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:31:51,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,253 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:31:52,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:52,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:31:52,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:31:52,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:31:52,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:31:52,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 03:31:52,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 03:31:52,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-19 03:31:52,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:52,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:52,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 03:31:52,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:52,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:52,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:52,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:52,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 03:31:52,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:52,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:52,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:31:52,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-19 03:31:52,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:52,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-19 03:31:52,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:52,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:52,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:31:52,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 03:31:52,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:52,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:52,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 03:31:52,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:52,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:52,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 03:31:52,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:52,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-19 03:31:52,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:52,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-08-19 03:31:52,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:52,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:52,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:31:52,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 03:31:52,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:52,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:52,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 03:31:52,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-19 03:31:52,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:52,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2020-08-19 03:31:52,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2020-08-19 03:31:52,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:52,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2020-08-19 03:31:52,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:52,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:52,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:31:52,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:52,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 03:31:52,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:52,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:31:52,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:31:52,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2020-08-19 03:31:52,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-08-19 03:31:52,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:52,761 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 80 proven. 7 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2020-08-19 03:31:52,761 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [389278771] [2020-08-19 03:31:52,762 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 03:31:52,762 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-08-19 03:31:52,762 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392514889] [2020-08-19 03:31:52,763 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-08-19 03:31:52,764 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:31:52,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-08-19 03:31:52,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-08-19 03:31:52,764 INFO L87 Difference]: Start difference. First operand 2095 states and 2456 transitions. Second operand 14 states. [2020-08-19 03:31:53,302 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 03:31:54,183 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 03:31:56,270 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 03:31:56,656 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 03:31:56,947 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 03:31:57,254 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-19 03:31:57,600 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-19 03:31:57,860 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-19 03:31:58,968 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 03:31:59,473 WARN L193 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 194 [2020-08-19 03:31:59,754 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-19 03:32:00,057 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-08-19 03:32:01,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:32:01,701 INFO L93 Difference]: Finished difference Result 6312 states and 7560 transitions. [2020-08-19 03:32:01,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-08-19 03:32:01,702 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 335 [2020-08-19 03:32:01,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:32:01,729 INFO L225 Difference]: With dead ends: 6312 [2020-08-19 03:32:01,729 INFO L226 Difference]: Without dead ends: 4253 [2020-08-19 03:32:01,741 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 128 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=316, Invalid=1244, Unknown=0, NotChecked=0, Total=1560 [2020-08-19 03:32:01,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4253 states. [2020-08-19 03:32:02,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4253 to 4145. [2020-08-19 03:32:02,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4145 states. [2020-08-19 03:32:02,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4145 states to 4145 states and 4794 transitions. [2020-08-19 03:32:02,567 INFO L78 Accepts]: Start accepts. Automaton has 4145 states and 4794 transitions. Word has length 335 [2020-08-19 03:32:02,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:32:02,570 INFO L479 AbstractCegarLoop]: Abstraction has 4145 states and 4794 transitions. [2020-08-19 03:32:02,570 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-08-19 03:32:02,571 INFO L276 IsEmpty]: Start isEmpty. Operand 4145 states and 4794 transitions. [2020-08-19 03:32:02,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2020-08-19 03:32:02,590 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:32:02,591 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 03:32:02,591 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-19 03:32:02,591 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:32:02,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:32:02,592 INFO L82 PathProgramCache]: Analyzing trace with hash -912853815, now seen corresponding path program 1 times [2020-08-19 03:32:02,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:32:02,593 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1914803722] [2020-08-19 03:32:02,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:32:02,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:32:02,950 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 03:32:02,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:32:02,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:32:02,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:32:02,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:32:02,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:32:02,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:32:02,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:32:02,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:32:02,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 03:32:02,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:32:02,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 03:32:02,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:32:02,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 03:32:02,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:32:03,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-19 03:32:03,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:32:03,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:32:03,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:32:03,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:32:03,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:32:03,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 03:32:03,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:32:03,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:32:03,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:32:03,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:32:03,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:32:03,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:32:03,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:32:03,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:32:03,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:32:03,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 03:32:03,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:32:03,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:32:03,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:32:03,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:32:03,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:32:03,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:32:03,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:32:03,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-19 03:32:03,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:32:03,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:32:03,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:32:03,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-19 03:32:03,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:32:03,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:32:03,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:32:03,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:32:03,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:32:03,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 03:32:03,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:32:03,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 03:32:03,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:32:03,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:32:03,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:32:03,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:32:03,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:32:03,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 03:32:03,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:32:03,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:32:03,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:32:03,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:32:03,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:32:03,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 03:32:03,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:32:03,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 03:32:03,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:32:03,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-19 03:32:03,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat