/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=0.5 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product62.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 06:44:27,119 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 06:44:27,123 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 06:44:27,164 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 06:44:27,164 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 06:44:27,175 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 06:44:27,177 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 06:44:27,180 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 06:44:27,183 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 06:44:27,187 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 06:44:27,188 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 06:44:27,189 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 06:44:27,189 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 06:44:27,192 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 06:44:27,194 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 06:44:27,196 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 06:44:27,197 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 06:44:27,198 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 06:44:27,200 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 06:44:27,208 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 06:44:27,210 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 06:44:27,211 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 06:44:27,212 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 06:44:27,213 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 06:44:27,225 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 06:44:27,225 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 06:44:27,225 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 06:44:27,228 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 06:44:27,228 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 06:44:27,231 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 06:44:27,231 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 06:44:27,232 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 06:44:27,232 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 06:44:27,233 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 06:44:27,234 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 06:44:27,234 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 06:44:27,236 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 06:44:27,237 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 06:44:27,237 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 06:44:27,238 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 06:44:27,239 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 06:44:27,240 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 06:44:27,277 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 06:44:27,278 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 06:44:27,280 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 06:44:27,280 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 06:44:27,280 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 06:44:27,281 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 06:44:27,281 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 06:44:27,281 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 06:44:27,281 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 06:44:27,281 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 06:44:27,282 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 06:44:27,283 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 06:44:27,283 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 06:44:27,283 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 06:44:27,283 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 06:44:27,283 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 06:44:27,284 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 06:44:27,284 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 06:44:27,284 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 06:44:27,284 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 06:44:27,284 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 06:44:27,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 06:44:27,285 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 06:44:27,285 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 06:44:27,285 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 06:44:27,285 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 06:44:27,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 06:44:27,286 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 06:44:27,286 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 06:44:27,286 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=0.5; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5; [2020-08-19 06:44:27,591 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 06:44:27,604 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 06:44:27,607 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 06:44:27,609 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 06:44:27,609 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 06:44:27,610 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product62.cil.c [2020-08-19 06:44:27,670 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1fec19530/5f07f421a386474da0be6c496c4a6662/FLAG40689880a [2020-08-19 06:44:28,187 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 06:44:28,188 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product62.cil.c [2020-08-19 06:44:28,203 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1fec19530/5f07f421a386474da0be6c496c4a6662/FLAG40689880a [2020-08-19 06:44:28,522 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1fec19530/5f07f421a386474da0be6c496c4a6662 [2020-08-19 06:44:28,532 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 06:44:28,534 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 06:44:28,538 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 06:44:28,539 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 06:44:28,542 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 06:44:28,544 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 06:44:28" (1/1) ... [2020-08-19 06:44:28,547 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60cc7f1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:44:28, skipping insertion in model container [2020-08-19 06:44:28,547 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 06:44:28" (1/1) ... [2020-08-19 06:44:28,556 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 06:44:28,623 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 06:44:29,098 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 06:44:29,118 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 06:44:29,198 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 06:44:29,237 INFO L208 MainTranslator]: Completed translation [2020-08-19 06:44:29,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:44:29 WrapperNode [2020-08-19 06:44:29,238 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 06:44:29,239 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 06:44:29,239 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 06:44:29,239 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 06:44:29,253 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:44:29" (1/1) ... [2020-08-19 06:44:29,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:44:29" (1/1) ... [2020-08-19 06:44:29,274 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:44:29" (1/1) ... [2020-08-19 06:44:29,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:44:29" (1/1) ... [2020-08-19 06:44:29,313 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:44:29" (1/1) ... [2020-08-19 06:44:29,329 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:44:29" (1/1) ... [2020-08-19 06:44:29,335 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:44:29" (1/1) ... [2020-08-19 06:44:29,352 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 06:44:29,352 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 06:44:29,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 06:44:29,356 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 06:44:29,357 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:44:29" (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 06:44:29,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 06:44:29,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 06:44:29,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-19 06:44:29,444 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-19 06:44:29,445 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-19 06:44:29,445 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-08-19 06:44:29,445 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-08-19 06:44:29,445 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-19 06:44:29,445 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-08-19 06:44:29,447 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-19 06:44:29,447 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-19 06:44:29,447 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-19 06:44:29,447 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-19 06:44:29,447 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-19 06:44:29,447 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-19 06:44:29,448 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-19 06:44:29,448 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-19 06:44:29,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-08-19 06:44:29,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-08-19 06:44:29,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-08-19 06:44:29,449 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-19 06:44:29,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-19 06:44:29,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-19 06:44:29,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-19 06:44:29,450 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-19 06:44:29,450 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-19 06:44:29,451 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-19 06:44:29,451 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-19 06:44:29,451 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-19 06:44:29,451 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-19 06:44:29,451 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-19 06:44:29,452 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-19 06:44:29,452 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-19 06:44:29,452 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-19 06:44:29,452 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-19 06:44:29,452 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-19 06:44:29,452 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-19 06:44:29,452 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-19 06:44:29,453 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-19 06:44:29,453 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 06:44:29,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-19 06:44:29,453 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-19 06:44:29,453 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-19 06:44:29,453 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-19 06:44:29,455 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-19 06:44:29,455 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 06:44:29,455 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 06:44:29,455 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-19 06:44:29,455 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-19 06:44:29,456 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-19 06:44:29,456 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-19 06:44:29,456 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-19 06:44:29,456 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-19 06:44:29,456 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-19 06:44:29,457 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-19 06:44:29,457 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-19 06:44:29,457 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-19 06:44:29,457 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-19 06:44:29,457 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-19 06:44:29,458 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-08-19 06:44:29,458 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-08-19 06:44:29,458 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-19 06:44:29,458 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-19 06:44:29,458 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-19 06:44:29,458 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-08-19 06:44:29,458 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-19 06:44:29,459 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-08-19 06:44:29,459 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-19 06:44:29,459 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-08-19 06:44:29,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 06:44:29,459 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-19 06:44:29,460 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-19 06:44:29,460 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-08-19 06:44:29,461 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-19 06:44:29,461 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-19 06:44:29,462 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-19 06:44:29,462 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-19 06:44:29,462 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-19 06:44:29,463 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-19 06:44:29,463 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-19 06:44:29,463 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-19 06:44:29,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-19 06:44:29,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-19 06:44:29,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 06:44:29,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-19 06:44:29,464 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-19 06:44:29,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 06:44:29,464 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-19 06:44:29,464 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-19 06:44:29,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 06:44:29,464 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-19 06:44:29,464 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-19 06:44:29,465 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-19 06:44:29,465 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-19 06:44:29,465 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-19 06:44:29,465 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-19 06:44:29,465 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-19 06:44:29,465 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-19 06:44:29,465 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-19 06:44:29,465 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 06:44:29,466 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-19 06:44:29,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 06:44:29,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-19 06:44:29,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 06:44:30,594 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 06:44:30,595 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-19 06:44:30,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 06:44:30 BoogieIcfgContainer [2020-08-19 06:44:30,600 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 06:44:30,601 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 06:44:30,602 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 06:44:30,605 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 06:44:30,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 06:44:28" (1/3) ... [2020-08-19 06:44:30,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a137321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 06:44:30, skipping insertion in model container [2020-08-19 06:44:30,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:44:29" (2/3) ... [2020-08-19 06:44:30,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a137321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 06:44:30, skipping insertion in model container [2020-08-19 06:44:30,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 06:44:30" (3/3) ... [2020-08-19 06:44:30,608 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product62.cil.c [2020-08-19 06:44:30,618 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 06:44:30,626 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 06:44:30,641 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 06:44:30,666 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 06:44:30,666 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 06:44:30,667 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 06:44:30,667 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 06:44:30,667 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 06:44:30,667 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 06:44:30,667 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 06:44:30,668 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 06:44:30,691 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states. [2020-08-19 06:44:30,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-08-19 06:44:30,702 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:44:30,703 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 06:44:30,703 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:44:30,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:44:30,710 INFO L82 PathProgramCache]: Analyzing trace with hash -1456889578, now seen corresponding path program 1 times [2020-08-19 06:44:30,717 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:44:30,718 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1826019415] [2020-08-19 06:44:30,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:44:30,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:31,307 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 06:44:31,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:44:31,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:31,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:44:31,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:31,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 06:44:31,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:31,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:44:31,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:31,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 06:44:31,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:31,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 06:44:31,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:31,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 06:44:31,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:31,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:44:31,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:31,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-19 06:44:31,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:31,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-19 06:44:31,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:31,446 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 06:44:31,447 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1826019415] [2020-08-19 06:44:31,449 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 06:44:31,449 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-19 06:44:31,450 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491854219] [2020-08-19 06:44:31,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-19 06:44:31,456 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:44:31,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-19 06:44:31,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-19 06:44:31,476 INFO L87 Difference]: Start difference. First operand 210 states. Second operand 4 states. [2020-08-19 06:44:32,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:44:32,733 INFO L93 Difference]: Finished difference Result 367 states and 468 transitions. [2020-08-19 06:44:32,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-19 06:44:32,735 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-08-19 06:44:32,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:44:32,767 INFO L225 Difference]: With dead ends: 367 [2020-08-19 06:44:32,768 INFO L226 Difference]: Without dead ends: 201 [2020-08-19 06:44:32,773 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-19 06:44:32,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2020-08-19 06:44:32,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 167. [2020-08-19 06:44:32,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-08-19 06:44:32,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 197 transitions. [2020-08-19 06:44:32,902 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 197 transitions. Word has length 59 [2020-08-19 06:44:32,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:44:32,902 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 197 transitions. [2020-08-19 06:44:32,903 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-19 06:44:32,903 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 197 transitions. [2020-08-19 06:44:32,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-08-19 06:44:32,907 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:44:32,908 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 06:44:32,908 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 06:44:32,908 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:44:32,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:44:32,909 INFO L82 PathProgramCache]: Analyzing trace with hash -1129690590, now seen corresponding path program 1 times [2020-08-19 06:44:32,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:44:32,909 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2092158736] [2020-08-19 06:44:32,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:44:32,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:33,240 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 06:44:33,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:44:33,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:33,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:44:33,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:33,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 06:44:33,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:33,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:44:33,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:33,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 06:44:33,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:33,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 06:44:33,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:33,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-19 06:44:33,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:33,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:44:33,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:33,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-19 06:44:33,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:33,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-19 06:44:33,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:33,303 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 06:44:33,304 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2092158736] [2020-08-19 06:44:33,304 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 06:44:33,305 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-19 06:44:33,305 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540362709] [2020-08-19 06:44:33,306 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-19 06:44:33,307 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:44:33,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-19 06:44:33,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-19 06:44:33,308 INFO L87 Difference]: Start difference. First operand 167 states and 197 transitions. Second operand 5 states. [2020-08-19 06:44:33,772 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 06:44:34,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:44:34,874 INFO L93 Difference]: Finished difference Result 308 states and 376 transitions. [2020-08-19 06:44:34,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-19 06:44:34,874 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2020-08-19 06:44:34,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:44:34,878 INFO L225 Difference]: With dead ends: 308 [2020-08-19 06:44:34,878 INFO L226 Difference]: Without dead ends: 191 [2020-08-19 06:44:34,880 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-19 06:44:34,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2020-08-19 06:44:34,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 158. [2020-08-19 06:44:34,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-08-19 06:44:34,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 185 transitions. [2020-08-19 06:44:34,925 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 185 transitions. Word has length 60 [2020-08-19 06:44:34,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:44:34,925 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 185 transitions. [2020-08-19 06:44:34,926 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-19 06:44:34,926 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 185 transitions. [2020-08-19 06:44:34,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-08-19 06:44:34,928 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:44:34,929 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 06:44:34,929 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 06:44:34,929 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:44:34,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:44:34,930 INFO L82 PathProgramCache]: Analyzing trace with hash -651026134, now seen corresponding path program 1 times [2020-08-19 06:44:34,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:44:34,930 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1963398876] [2020-08-19 06:44:34,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:44:34,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:35,254 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 06:44:35,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:44:35,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:35,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:44:35,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:35,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 06:44:35,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:35,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:44:35,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:35,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 06:44:35,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:35,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 06:44:35,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:35,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 06:44:35,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:35,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:44:35,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:35,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-19 06:44:35,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:35,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-19 06:44:35,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:35,459 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 06:44:35,459 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1963398876] [2020-08-19 06:44:35,459 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 06:44:35,460 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 06:44:35,460 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881071627] [2020-08-19 06:44:35,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 06:44:35,461 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:44:35,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 06:44:35,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-19 06:44:35,461 INFO L87 Difference]: Start difference. First operand 158 states and 185 transitions. Second operand 9 states. [2020-08-19 06:44:35,771 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 06:44:36,085 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 06:44:36,347 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 06:44:36,589 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 06:44:37,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:44:37,979 INFO L93 Difference]: Finished difference Result 321 states and 395 transitions. [2020-08-19 06:44:37,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-19 06:44:37,982 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2020-08-19 06:44:37,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:44:37,989 INFO L225 Difference]: With dead ends: 321 [2020-08-19 06:44:37,989 INFO L226 Difference]: Without dead ends: 191 [2020-08-19 06:44:37,991 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-08-19 06:44:37,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2020-08-19 06:44:38,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 158. [2020-08-19 06:44:38,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-08-19 06:44:38,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 184 transitions. [2020-08-19 06:44:38,053 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 184 transitions. Word has length 65 [2020-08-19 06:44:38,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:44:38,055 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 184 transitions. [2020-08-19 06:44:38,057 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 06:44:38,057 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 184 transitions. [2020-08-19 06:44:38,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-08-19 06:44:38,068 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:44:38,068 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 06:44:38,069 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 06:44:38,069 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:44:38,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:44:38,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1717523051, now seen corresponding path program 1 times [2020-08-19 06:44:38,070 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:44:38,070 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [928393469] [2020-08-19 06:44:38,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:44:38,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:38,398 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 06:44:38,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:44:38,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:38,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:44:38,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:38,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 06:44:38,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:38,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:44:38,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:38,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 06:44:38,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:38,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 06:44:38,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:38,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 06:44:38,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:38,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:44:38,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:38,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-19 06:44:38,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:38,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:44:38,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:38,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:44:38,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:38,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:44:38,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:38,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-19 06:44:38,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:38,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-19 06:44:38,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:38,524 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 06:44:38,525 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [928393469] [2020-08-19 06:44:38,525 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 06:44:38,525 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-19 06:44:38,525 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717626696] [2020-08-19 06:44:38,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-19 06:44:38,526 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:44:38,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-19 06:44:38,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-19 06:44:38,527 INFO L87 Difference]: Start difference. First operand 158 states and 184 transitions. Second operand 7 states. [2020-08-19 06:44:38,875 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 06:44:40,435 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 06:44:41,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:44:41,114 INFO L93 Difference]: Finished difference Result 439 states and 543 transitions. [2020-08-19 06:44:41,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-19 06:44:41,116 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2020-08-19 06:44:41,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:44:41,120 INFO L225 Difference]: With dead ends: 439 [2020-08-19 06:44:41,120 INFO L226 Difference]: Without dead ends: 309 [2020-08-19 06:44:41,122 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-08-19 06:44:41,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-08-19 06:44:41,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 263. [2020-08-19 06:44:41,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-08-19 06:44:41,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 298 transitions. [2020-08-19 06:44:41,205 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 298 transitions. Word has length 83 [2020-08-19 06:44:41,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:44:41,205 INFO L479 AbstractCegarLoop]: Abstraction has 263 states and 298 transitions. [2020-08-19 06:44:41,205 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-19 06:44:41,206 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 298 transitions. [2020-08-19 06:44:41,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-08-19 06:44:41,207 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:44:41,207 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 06:44:41,208 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 06:44:41,208 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:44:41,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:44:41,209 INFO L82 PathProgramCache]: Analyzing trace with hash 119397721, now seen corresponding path program 1 times [2020-08-19 06:44:41,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:44:41,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2112771533] [2020-08-19 06:44:41,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:44:41,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:41,487 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 06:44:41,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:44:41,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:41,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:44:41,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:41,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 06:44:41,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:41,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:44:41,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:41,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 06:44:41,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:41,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 06:44:41,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:41,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 06:44:41,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:41,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:44:41,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:41,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-19 06:44:41,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:41,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:44:41,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:41,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:44:41,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:41,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:44:41,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:41,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:44:41,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:41,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 06:44:41,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:41,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-19 06:44:41,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:41,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-08-19 06:44:41,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:41,609 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 06:44:41,609 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2112771533] [2020-08-19 06:44:41,610 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 06:44:41,610 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 06:44:41,610 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139191248] [2020-08-19 06:44:41,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 06:44:41,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:44:41,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 06:44:41,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-19 06:44:41,611 INFO L87 Difference]: Start difference. First operand 263 states and 298 transitions. Second operand 9 states. [2020-08-19 06:44:41,904 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 06:44:42,582 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 06:44:43,466 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 06:44:43,738 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 06:44:44,158 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 06:44:44,396 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 06:44:44,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:44:44,992 INFO L93 Difference]: Finished difference Result 543 states and 648 transitions. [2020-08-19 06:44:44,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-19 06:44:44,992 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-08-19 06:44:44,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:44:44,997 INFO L225 Difference]: With dead ends: 543 [2020-08-19 06:44:44,997 INFO L226 Difference]: Without dead ends: 308 [2020-08-19 06:44:44,998 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-08-19 06:44:44,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2020-08-19 06:44:45,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 262. [2020-08-19 06:44:45,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-08-19 06:44:45,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 295 transitions. [2020-08-19 06:44:45,046 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 295 transitions. Word has length 97 [2020-08-19 06:44:45,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:44:45,047 INFO L479 AbstractCegarLoop]: Abstraction has 262 states and 295 transitions. [2020-08-19 06:44:45,047 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 06:44:45,047 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 295 transitions. [2020-08-19 06:44:45,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-08-19 06:44:45,049 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:44:45,049 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 06:44:45,049 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-19 06:44:45,050 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:44:45,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:44:45,050 INFO L82 PathProgramCache]: Analyzing trace with hash 299468705, now seen corresponding path program 1 times [2020-08-19 06:44:45,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:44:45,051 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1315841733] [2020-08-19 06:44:45,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:44:45,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:45,304 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 06:44:45,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:44:45,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:45,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:44:45,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:45,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 06:44:45,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:45,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:44:45,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:45,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 06:44:45,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:45,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 06:44:45,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:45,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 06:44:45,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:45,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:44:45,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:45,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-19 06:44:45,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:45,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:44:45,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:45,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:44:45,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:45,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:44:45,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:45,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:44:45,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:45,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 06:44:45,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:45,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:44:45,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:45,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:44:45,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:45,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:44:45,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:45,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-19 06:44:45,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:45,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-19 06:44:45,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:45,464 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 06:44:45,465 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1315841733] [2020-08-19 06:44:45,465 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 06:44:45,465 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 06:44:45,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113906240] [2020-08-19 06:44:45,466 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 06:44:45,466 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:44:45,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 06:44:45,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-19 06:44:45,467 INFO L87 Difference]: Start difference. First operand 262 states and 295 transitions. Second operand 9 states. [2020-08-19 06:44:46,450 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 06:44:46,692 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 06:44:46,951 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 06:44:47,211 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 06:44:48,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:44:48,098 INFO L93 Difference]: Finished difference Result 543 states and 653 transitions. [2020-08-19 06:44:48,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-19 06:44:48,099 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 113 [2020-08-19 06:44:48,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:44:48,101 INFO L225 Difference]: With dead ends: 543 [2020-08-19 06:44:48,101 INFO L226 Difference]: Without dead ends: 309 [2020-08-19 06:44:48,102 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 06:44:48,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-08-19 06:44:48,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 267. [2020-08-19 06:44:48,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2020-08-19 06:44:48,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 300 transitions. [2020-08-19 06:44:48,152 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 300 transitions. Word has length 113 [2020-08-19 06:44:48,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:44:48,152 INFO L479 AbstractCegarLoop]: Abstraction has 267 states and 300 transitions. [2020-08-19 06:44:48,153 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 06:44:48,153 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 300 transitions. [2020-08-19 06:44:48,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-08-19 06:44:48,154 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:44:48,154 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 06:44:48,155 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-19 06:44:48,155 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:44:48,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:44:48,155 INFO L82 PathProgramCache]: Analyzing trace with hash -2056336545, now seen corresponding path program 1 times [2020-08-19 06:44:48,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:44:48,156 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [120374754] [2020-08-19 06:44:48,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:44:48,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:48,421 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 06:44:48,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:44:48,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:48,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:44:48,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:48,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 06:44:48,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:48,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:44:48,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:48,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 06:44:48,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:48,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 06:44:48,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:48,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 06:44:48,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:48,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:44:48,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:48,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-19 06:44:48,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:48,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:44:48,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:48,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:44:48,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:48,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:44:48,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:48,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:44:48,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:48,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 06:44:48,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:48,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:44:48,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:48,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:44:48,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:48,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:44:48,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:48,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-19 06:44:48,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:48,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-19 06:44:48,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:48,603 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 06:44:48,603 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [120374754] [2020-08-19 06:44:48,604 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 06:44:48,604 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-19 06:44:48,604 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87547384] [2020-08-19 06:44:48,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-19 06:44:48,605 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:44:48,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-19 06:44:48,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-08-19 06:44:48,606 INFO L87 Difference]: Start difference. First operand 267 states and 300 transitions. Second operand 11 states. [2020-08-19 06:44:49,049 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 06:44:49,317 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 06:44:49,551 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 06:44:50,247 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 06:44:50,496 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 06:44:50,730 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 06:44:51,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:44:51,873 INFO L93 Difference]: Finished difference Result 553 states and 664 transitions. [2020-08-19 06:44:51,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-19 06:44:51,876 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 113 [2020-08-19 06:44:51,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:44:51,883 INFO L225 Difference]: With dead ends: 553 [2020-08-19 06:44:51,884 INFO L226 Difference]: Without dead ends: 314 [2020-08-19 06:44:51,886 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-08-19 06:44:51,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2020-08-19 06:44:51,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 271. [2020-08-19 06:44:51,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-08-19 06:44:51,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 304 transitions. [2020-08-19 06:44:51,972 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 304 transitions. Word has length 113 [2020-08-19 06:44:51,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:44:51,973 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 304 transitions. [2020-08-19 06:44:51,973 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-19 06:44:51,973 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 304 transitions. [2020-08-19 06:44:51,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-08-19 06:44:51,979 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:44:51,979 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 06:44:51,979 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-19 06:44:51,980 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:44:51,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:44:51,980 INFO L82 PathProgramCache]: Analyzing trace with hash -1287166530, now seen corresponding path program 1 times [2020-08-19 06:44:51,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:44:51,981 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1343626203] [2020-08-19 06:44:51,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:44:52,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:52,253 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 06:44:52,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:44:52,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:52,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:44:52,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:52,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 06:44:52,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:52,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:44:52,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:52,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 06:44:52,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:52,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 06:44:52,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:52,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-19 06:44:52,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:52,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:44:52,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:52,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-19 06:44:52,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:52,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:44:52,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:52,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:44:52,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:52,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:44:52,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:52,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:44:52,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:52,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 06:44:52,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:52,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:44:52,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:52,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:44:52,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:52,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:44:52,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:52,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-19 06:44:52,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:52,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-19 06:44:52,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:52,428 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 06:44:52,428 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1343626203] [2020-08-19 06:44:52,430 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 06:44:52,431 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-19 06:44:52,431 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039922166] [2020-08-19 06:44:52,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-19 06:44:52,432 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:44:52,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-19 06:44:52,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-19 06:44:52,433 INFO L87 Difference]: Start difference. First operand 271 states and 304 transitions. Second operand 7 states. [2020-08-19 06:44:52,808 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 06:44:53,390 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 06:44:55,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:44:55,456 INFO L93 Difference]: Finished difference Result 745 states and 915 transitions. [2020-08-19 06:44:55,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-19 06:44:55,456 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 113 [2020-08-19 06:44:55,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:44:55,461 INFO L225 Difference]: With dead ends: 745 [2020-08-19 06:44:55,461 INFO L226 Difference]: Without dead ends: 502 [2020-08-19 06:44:55,462 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 45 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-08-19 06:44:55,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2020-08-19 06:44:55,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 460. [2020-08-19 06:44:55,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 460 states. [2020-08-19 06:44:55,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 532 transitions. [2020-08-19 06:44:55,539 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 532 transitions. Word has length 113 [2020-08-19 06:44:55,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:44:55,539 INFO L479 AbstractCegarLoop]: Abstraction has 460 states and 532 transitions. [2020-08-19 06:44:55,539 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-19 06:44:55,540 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 532 transitions. [2020-08-19 06:44:55,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-08-19 06:44:55,541 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:44:55,542 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 06:44:55,542 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-19 06:44:55,542 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:44:55,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:44:55,542 INFO L82 PathProgramCache]: Analyzing trace with hash -803017404, now seen corresponding path program 1 times [2020-08-19 06:44:55,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:44:55,543 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [746302815] [2020-08-19 06:44:55,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:44:55,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:55,858 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 06:44:55,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:44:55,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:55,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:44:55,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:55,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 06:44:55,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:55,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:44:55,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:55,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 06:44:55,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:55,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 06:44:55,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:55,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 06:44:55,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:55,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-19 06:44:55,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:55,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:44:55,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:55,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-08-19 06:44:55,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:55,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:44:55,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:55,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:44:55,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:56,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:44:56,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:56,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:44:56,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:56,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 06:44:56,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:56,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:44:56,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:56,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:44:56,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:56,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:44:56,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:56,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-19 06:44:56,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:56,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-08-19 06:44:56,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:44:56,045 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 06:44:56,045 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [746302815] [2020-08-19 06:44:56,045 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 06:44:56,046 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-19 06:44:56,046 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964748845] [2020-08-19 06:44:56,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-19 06:44:56,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:44:56,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-19 06:44:56,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-08-19 06:44:56,047 INFO L87 Difference]: Start difference. First operand 460 states and 532 transitions. Second operand 12 states. [2020-08-19 06:44:56,462 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 06:44:57,147 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 06:44:58,306 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 06:44:58,627 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 06:44:58,887 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 06:44:59,170 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 06:44:59,455 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 06:45:00,759 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 06:45:01,000 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 06:45:02,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:45:02,007 INFO L93 Difference]: Finished difference Result 1281 states and 1569 transitions. [2020-08-19 06:45:02,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-08-19 06:45:02,007 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 117 [2020-08-19 06:45:02,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:45:02,017 INFO L225 Difference]: With dead ends: 1281 [2020-08-19 06:45:02,017 INFO L226 Difference]: Without dead ends: 928 [2020-08-19 06:45:02,019 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 345 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2020-08-19 06:45:02,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2020-08-19 06:45:02,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 803. [2020-08-19 06:45:02,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2020-08-19 06:45:02,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 919 transitions. [2020-08-19 06:45:02,176 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 919 transitions. Word has length 117 [2020-08-19 06:45:02,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:45:02,177 INFO L479 AbstractCegarLoop]: Abstraction has 803 states and 919 transitions. [2020-08-19 06:45:02,177 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-19 06:45:02,177 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 919 transitions. [2020-08-19 06:45:02,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-08-19 06:45:02,180 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:45:02,181 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 06:45:02,181 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-19 06:45:02,182 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:45:02,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:45:02,182 INFO L82 PathProgramCache]: Analyzing trace with hash -394036424, now seen corresponding path program 1 times [2020-08-19 06:45:02,182 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:45:02,182 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2065664280] [2020-08-19 06:45:02,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:45:02,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:02,538 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 06:45:02,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:45:02,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:02,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:45:02,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:02,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 06:45:02,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:02,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:45:02,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:02,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 06:45:02,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:02,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 06:45:02,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:02,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 06:45:02,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:02,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-19 06:45:02,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:02,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:45:02,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:02,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:45:02,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:02,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 06:45:02,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:02,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:45:02,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:02,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:45:02,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:02,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:45:02,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:02,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:45:02,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:02,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 06:45:02,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:02,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:45:02,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:02,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:45:02,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:02,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:45:02,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:02,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-19 06:45:02,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:02,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:45:02,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:02,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-19 06:45:02,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:02,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:45:02,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:02,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-19 06:45:02,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:02,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-08-19 06:45:02,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:02,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:45:02,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:02,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:45:02,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:02,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 06:45:02,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:02,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:45:02,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:02,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:45:02,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:02,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 06:45:02,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:02,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:45:02,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:03,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-08-19 06:45:03,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:03,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-08-19 06:45:03,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:03,115 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 06:45:03,115 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2065664280] [2020-08-19 06:45:03,116 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 06:45:03,116 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-19 06:45:03,117 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624374799] [2020-08-19 06:45:03,118 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-19 06:45:03,118 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:45:03,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-19 06:45:03,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-08-19 06:45:03,119 INFO L87 Difference]: Start difference. First operand 803 states and 919 transitions. Second operand 16 states. [2020-08-19 06:45:03,755 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-19 06:45:04,102 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-19 06:45:04,400 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-19 06:45:04,696 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-19 06:45:05,376 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-08-19 06:45:05,698 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-19 06:45:06,156 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-08-19 06:45:06,989 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-08-19 06:45:07,527 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 06:45:07,998 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-08-19 06:45:08,628 WARN L193 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-08-19 06:45:09,097 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-08-19 06:45:09,384 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 06:45:09,968 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 06:45:10,414 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-08-19 06:45:11,135 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-19 06:45:11,666 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 194 [2020-08-19 06:45:12,401 WARN L193 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 195 [2020-08-19 06:45:12,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:45:12,967 INFO L93 Difference]: Finished difference Result 1744 states and 2052 transitions. [2020-08-19 06:45:12,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-08-19 06:45:12,967 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 195 [2020-08-19 06:45:12,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:45:12,976 INFO L225 Difference]: With dead ends: 1744 [2020-08-19 06:45:12,977 INFO L226 Difference]: Without dead ends: 1044 [2020-08-19 06:45:12,980 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 765 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=618, Invalid=2462, Unknown=0, NotChecked=0, Total=3080 [2020-08-19 06:45:12,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2020-08-19 06:45:13,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 951. [2020-08-19 06:45:13,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 951 states. [2020-08-19 06:45:13,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1097 transitions. [2020-08-19 06:45:13,190 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1097 transitions. Word has length 195 [2020-08-19 06:45:13,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:45:13,191 INFO L479 AbstractCegarLoop]: Abstraction has 951 states and 1097 transitions. [2020-08-19 06:45:13,191 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-19 06:45:13,191 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1097 transitions. [2020-08-19 06:45:13,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2020-08-19 06:45:13,199 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:45:13,199 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:45:13,200 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-19 06:45:13,200 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:45:13,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:45:13,200 INFO L82 PathProgramCache]: Analyzing trace with hash -604725475, now seen corresponding path program 1 times [2020-08-19 06:45:13,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:45:13,202 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [659204377] [2020-08-19 06:45:13,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:45:13,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,535 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 06:45:13,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:45:13,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:45:13,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 06:45:13,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:45:13,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 06:45:13,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 06:45:13,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 06:45:13,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-19 06:45:13,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:45:13,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:45:13,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 06:45:13,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:45:13,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:45:13,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:45:13,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:45:13,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 06:45:13,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:45:13,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:45:13,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:45:13,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-19 06:45:13,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:45:13,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-19 06:45:13,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:45:13,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:45:13,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 06:45:13,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 06:45:13,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:45:13,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:45:13,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 06:45:13,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:45:13,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:45:13,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 06:45:13,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:45:13,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-19 06:45:13,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:45:13,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-08-19 06:45:13,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:45:13,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:45:13,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 06:45:13,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 06:45:13,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:45:13,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:45:13,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 06:45:13,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-19 06:45:13,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:45:13,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2020-08-19 06:45:13,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:45:13,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2020-08-19 06:45:13,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:45:13,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:45:13,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:45:13,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:45:13,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 06:45:13,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:45:13,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:45:13,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:45:13,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2020-08-19 06:45:13,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2020-08-19 06:45:13,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:13,996 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 77 proven. 21 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2020-08-19 06:45:13,997 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [659204377] [2020-08-19 06:45:13,997 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 06:45:13,997 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-19 06:45:13,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677270173] [2020-08-19 06:45:13,998 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-19 06:45:13,998 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:45:13,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-19 06:45:13,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2020-08-19 06:45:13,999 INFO L87 Difference]: Start difference. First operand 951 states and 1097 transitions. Second operand 16 states. [2020-08-19 06:45:14,497 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 06:45:15,328 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-19 06:45:16,489 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 06:45:16,809 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 06:45:17,083 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 06:45:17,379 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 06:45:17,706 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 06:45:18,003 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 06:45:19,835 WARN L193 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-08-19 06:45:20,302 WARN L193 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-08-19 06:45:20,829 WARN L193 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 192 [2020-08-19 06:45:21,313 WARN L193 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 192 [2020-08-19 06:45:22,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:45:22,387 INFO L93 Difference]: Finished difference Result 2689 states and 3184 transitions. [2020-08-19 06:45:22,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-08-19 06:45:22,388 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 331 [2020-08-19 06:45:22,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:45:22,400 INFO L225 Difference]: With dead ends: 2689 [2020-08-19 06:45:22,400 INFO L226 Difference]: Without dead ends: 1774 [2020-08-19 06:45:22,405 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=376, Invalid=1346, Unknown=0, NotChecked=0, Total=1722 [2020-08-19 06:45:22,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1774 states. [2020-08-19 06:45:22,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1774 to 1728. [2020-08-19 06:45:22,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1728 states. [2020-08-19 06:45:22,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1728 states to 1728 states and 1964 transitions. [2020-08-19 06:45:22,772 INFO L78 Accepts]: Start accepts. Automaton has 1728 states and 1964 transitions. Word has length 331 [2020-08-19 06:45:22,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:45:22,775 INFO L479 AbstractCegarLoop]: Abstraction has 1728 states and 1964 transitions. [2020-08-19 06:45:22,776 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-19 06:45:22,776 INFO L276 IsEmpty]: Start isEmpty. Operand 1728 states and 1964 transitions. [2020-08-19 06:45:22,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2020-08-19 06:45:22,785 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:45:22,786 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:45:22,786 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-19 06:45:22,786 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:45:22,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:45:22,787 INFO L82 PathProgramCache]: Analyzing trace with hash 414679617, now seen corresponding path program 1 times [2020-08-19 06:45:22,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:45:22,787 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1893459117] [2020-08-19 06:45:22,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:45:22,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,141 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-19 06:45:23,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:45:23,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:45:23,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 06:45:23,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:45:23,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-19 06:45:23,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-19 06:45:23,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 06:45:23,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-19 06:45:23,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:45:23,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:45:23,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 06:45:23,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:45:23,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:45:23,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:45:23,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:45:23,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 06:45:23,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:45:23,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:45:23,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:45:23,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-19 06:45:23,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:45:23,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-19 06:45:23,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:45:23,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:45:23,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 06:45:23,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 06:45:23,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:45:23,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:45:23,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 06:45:23,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:45:23,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:45:23,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 06:45:23,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:45:23,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-19 06:45:23,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:45:23,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2020-08-19 06:45:23,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-08-19 06:45:23,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:45:23,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:45:23,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-19 06:45:23,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-19 06:45:23,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:45:23,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:45:23,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-19 06:45:23,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-19 06:45:23,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:45:23,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2020-08-19 06:45:23,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:45:23,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2020-08-19 06:45:23,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:45:23,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:45:23,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:45:23,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:45:23,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 06:45:23,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:45:23,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:45:23,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:45:23,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2020-08-19 06:45:23,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-08-19 06:45:23,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:45:23,819 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 92 proven. 3 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2020-08-19 06:45:23,820 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1893459117] [2020-08-19 06:45:23,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 06:45:23,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-08-19 06:45:23,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491288422] [2020-08-19 06:45:23,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-08-19 06:45:23,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:45:23,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-08-19 06:45:23,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2020-08-19 06:45:23,824 INFO L87 Difference]: Start difference. First operand 1728 states and 1964 transitions. Second operand 19 states. [2020-08-19 06:45:24,295 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 06:45:24,639 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 06:45:24,889 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 06:45:25,165 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-19 06:45:25,866 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-19 06:45:27,209 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 06:45:27,581 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-19 06:45:27,848 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 191