/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=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product57.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-22 00:31:36,006 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 00:31:36,009 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 00:31:36,050 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 00:31:36,051 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 00:31:36,059 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 00:31:36,061 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 00:31:36,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 00:31:36,067 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 00:31:36,070 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 00:31:36,071 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 00:31:36,072 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 00:31:36,072 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 00:31:36,075 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 00:31:36,078 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 00:31:36,079 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 00:31:36,081 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 00:31:36,082 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 00:31:36,084 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 00:31:36,092 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 00:31:36,094 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 00:31:36,095 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 00:31:36,096 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 00:31:36,096 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 00:31:36,108 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 00:31:36,108 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 00:31:36,108 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 00:31:36,113 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 00:31:36,114 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 00:31:36,117 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 00:31:36,117 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 00:31:36,118 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 00:31:36,119 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 00:31:36,119 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 00:31:36,125 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 00:31:36,125 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 00:31:36,126 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 00:31:36,126 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 00:31:36,126 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 00:31:36,127 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 00:31:36,127 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 00:31:36,128 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 [2020-08-22 00:31:36,150 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 00:31:36,150 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 00:31:36,151 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 00:31:36,152 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 00:31:36,152 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 00:31:36,152 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 00:31:36,152 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 00:31:36,152 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 00:31:36,153 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 00:31:36,153 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 00:31:36,153 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 00:31:36,153 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 00:31:36,153 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 00:31:36,154 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 00:31:36,154 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 00:31:36,154 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 00:31:36,154 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 00:31:36,154 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 00:31:36,154 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 00:31:36,155 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 00:31:36,155 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 00:31:36,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 00:31:36,155 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 00:31:36,156 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 00:31:36,156 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 00:31:36,156 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 00:31:36,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 00:31:36,156 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 00:31:36,156 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 00:31:36,157 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=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-08-22 00:31:36,461 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 00:31:36,474 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 00:31:36,477 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 00:31:36,479 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 00:31:36,479 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 00:31:36,480 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product57.cil.c [2020-08-22 00:31:36,553 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b8e8fdb90/cbc3c80e413c4973badb2f145f0728c3/FLAGa01de7b1e [2020-08-22 00:31:37,107 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 00:31:37,107 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product57.cil.c [2020-08-22 00:31:37,121 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b8e8fdb90/cbc3c80e413c4973badb2f145f0728c3/FLAGa01de7b1e [2020-08-22 00:31:37,423 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b8e8fdb90/cbc3c80e413c4973badb2f145f0728c3 [2020-08-22 00:31:37,432 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 00:31:37,434 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 00:31:37,435 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 00:31:37,435 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 00:31:37,439 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 00:31:37,440 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 12:31:37" (1/1) ... [2020-08-22 00:31:37,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d5ae353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 12:31:37, skipping insertion in model container [2020-08-22 00:31:37,443 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 12:31:37" (1/1) ... [2020-08-22 00:31:37,452 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 00:31:37,502 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 00:31:37,997 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 00:31:38,012 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 00:31:38,108 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 00:31:38,146 INFO L208 MainTranslator]: Completed translation [2020-08-22 00:31:38,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 12:31:38 WrapperNode [2020-08-22 00:31:38,146 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 00:31:38,147 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 00:31:38,147 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 00:31:38,148 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 00:31:38,159 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 12:31:38" (1/1) ... [2020-08-22 00:31:38,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 12:31:38" (1/1) ... [2020-08-22 00:31:38,178 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 12:31:38" (1/1) ... [2020-08-22 00:31:38,178 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 12:31:38" (1/1) ... [2020-08-22 00:31:38,209 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 12:31:38" (1/1) ... [2020-08-22 00:31:38,220 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 12:31:38" (1/1) ... [2020-08-22 00:31:38,228 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 12:31:38" (1/1) ... [2020-08-22 00:31:38,236 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 00:31:38,237 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 00:31:38,237 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 00:31:38,237 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 00:31:38,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 12:31:38" (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 [2020-08-22 00:31:38,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 00:31:38,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 00:31:38,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 00:31:38,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 00:31:38,298 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 00:31:38,298 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 00:31:38,298 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 00:31:38,299 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 00:31:38,299 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 00:31:38,300 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 00:31:38,300 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 00:31:38,300 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 00:31:38,300 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 00:31:38,300 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 00:31:38,300 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 00:31:38,303 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 00:31:38,303 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 00:31:38,303 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 00:31:38,304 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 00:31:38,304 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-22 00:31:38,304 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-22 00:31:38,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 00:31:38,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 00:31:38,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 00:31:38,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 00:31:38,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 00:31:38,305 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 00:31:38,305 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-08-22 00:31:38,305 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-08-22 00:31:38,305 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-08-22 00:31:38,305 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 00:31:38,305 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 00:31:38,305 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-22 00:31:38,305 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-08-22 00:31:38,306 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 00:31:38,306 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-08-22 00:31:38,306 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 00:31:38,306 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 00:31:38,306 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 00:31:38,306 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 00:31:38,306 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 00:31:38,306 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-22 00:31:38,306 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-22 00:31:38,306 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 00:31:38,307 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 00:31:38,307 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 00:31:38,307 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 00:31:38,307 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 00:31:38,307 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 00:31:38,307 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 00:31:38,307 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 00:31:38,308 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 00:31:38,308 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 00:31:38,308 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 00:31:38,308 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 00:31:38,308 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 00:31:38,309 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 00:31:38,309 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 00:31:38,309 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-08-22 00:31:38,309 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 00:31:38,309 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 00:31:38,310 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 00:31:38,310 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 00:31:38,310 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 00:31:38,310 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 00:31:38,310 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 00:31:38,310 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-22 00:31:38,310 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-22 00:31:38,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 00:31:38,311 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 00:31:38,311 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 00:31:38,312 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 00:31:38,312 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 00:31:38,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 00:31:38,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 00:31:38,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 00:31:38,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 00:31:38,314 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 00:31:38,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 00:31:38,314 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 00:31:38,314 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 00:31:38,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 00:31:38,315 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 00:31:38,316 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 00:31:38,316 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 00:31:38,316 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 00:31:38,316 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-08-22 00:31:38,316 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-08-22 00:31:38,316 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 00:31:38,317 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 00:31:38,317 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 00:31:38,317 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-22 00:31:38,317 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-22 00:31:38,317 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-08-22 00:31:38,317 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-22 00:31:38,317 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-08-22 00:31:38,318 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 00:31:38,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 00:31:38,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 00:31:38,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 00:31:39,415 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 00:31:39,415 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 00:31:39,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 12:31:39 BoogieIcfgContainer [2020-08-22 00:31:39,421 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 00:31:39,422 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 00:31:39,422 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 00:31:39,425 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 00:31:39,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 12:31:37" (1/3) ... [2020-08-22 00:31:39,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d710bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 12:31:39, skipping insertion in model container [2020-08-22 00:31:39,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 12:31:38" (2/3) ... [2020-08-22 00:31:39,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d710bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 12:31:39, skipping insertion in model container [2020-08-22 00:31:39,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 12:31:39" (3/3) ... [2020-08-22 00:31:39,429 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product57.cil.c [2020-08-22 00:31:39,440 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 00:31:39,447 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 00:31:39,464 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 00:31:39,496 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 00:31:39,496 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 00:31:39,496 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 00:31:39,497 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 00:31:39,497 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 00:31:39,497 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 00:31:39,498 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 00:31:39,499 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 00:31:39,524 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states. [2020-08-22 00:31:39,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-08-22 00:31:39,533 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:31:39,534 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] [2020-08-22 00:31:39,535 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:31:39,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:31:39,540 INFO L82 PathProgramCache]: Analyzing trace with hash 479094946, now seen corresponding path program 1 times [2020-08-22 00:31:39,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:31:39,550 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [561052195] [2020-08-22 00:31:39,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:31:39,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:40,319 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 00:31:40,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:31:40,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:40,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 00:31:40,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:40,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 00:31:40,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:40,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 00:31:40,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:40,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 00:31:40,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:40,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 00:31:40,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:40,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 00:31:40,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:40,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:31:40,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:40,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-22 00:31:40,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:40,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 00:31:40,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:40,488 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 00:31:40,489 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [561052195] [2020-08-22 00:31:40,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 00:31:40,492 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 00:31:40,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516582931] [2020-08-22 00:31:40,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 00:31:40,500 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 00:31:40,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 00:31:40,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-22 00:31:40,517 INFO L87 Difference]: Start difference. First operand 196 states. Second operand 4 states. [2020-08-22 00:31:41,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 00:31:41,688 INFO L93 Difference]: Finished difference Result 335 states and 423 transitions. [2020-08-22 00:31:41,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 00:31:41,690 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-08-22 00:31:41,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 00:31:41,706 INFO L225 Difference]: With dead ends: 335 [2020-08-22 00:31:41,707 INFO L226 Difference]: Without dead ends: 183 [2020-08-22 00:31:41,712 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-22 00:31:41,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2020-08-22 00:31:41,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 153. [2020-08-22 00:31:41,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-08-22 00:31:41,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 178 transitions. [2020-08-22 00:31:41,818 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 178 transitions. Word has length 59 [2020-08-22 00:31:41,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 00:31:41,819 INFO L479 AbstractCegarLoop]: Abstraction has 153 states and 178 transitions. [2020-08-22 00:31:41,819 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 00:31:41,819 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 178 transitions. [2020-08-22 00:31:41,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-08-22 00:31:41,827 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:31:41,827 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 00:31:41,827 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 00:31:41,827 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:31:41,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:31:41,830 INFO L82 PathProgramCache]: Analyzing trace with hash 1126861649, now seen corresponding path program 1 times [2020-08-22 00:31:41,830 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:31:41,831 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1778503511] [2020-08-22 00:31:41,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:31:41,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:42,301 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 00:31:42,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:31:42,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:42,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 00:31:42,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:42,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 00:31:42,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:42,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 00:31:42,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:42,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 00:31:42,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:42,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 00:31:42,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:42,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 00:31:42,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:42,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:31:42,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:42,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-22 00:31:42,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:42,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-22 00:31:42,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:42,405 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 00:31:42,405 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1778503511] [2020-08-22 00:31:42,405 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 00:31:42,406 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 00:31:42,406 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7616389] [2020-08-22 00:31:42,407 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 00:31:42,408 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 00:31:42,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 00:31:42,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-22 00:31:42,409 INFO L87 Difference]: Start difference. First operand 153 states and 178 transitions. Second operand 9 states. [2020-08-22 00:31:42,826 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 00:31:43,165 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 00:31:43,436 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 00:31:43,682 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 00:31:45,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 00:31:45,077 INFO L93 Difference]: Finished difference Result 308 states and 378 transitions. [2020-08-22 00:31:45,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 00:31:45,077 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 64 [2020-08-22 00:31:45,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 00:31:45,081 INFO L225 Difference]: With dead ends: 308 [2020-08-22 00:31:45,082 INFO L226 Difference]: Without dead ends: 183 [2020-08-22 00:31:45,084 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-08-22 00:31:45,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2020-08-22 00:31:45,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 153. [2020-08-22 00:31:45,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-08-22 00:31:45,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 177 transitions. [2020-08-22 00:31:45,131 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 177 transitions. Word has length 64 [2020-08-22 00:31:45,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 00:31:45,132 INFO L479 AbstractCegarLoop]: Abstraction has 153 states and 177 transitions. [2020-08-22 00:31:45,132 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 00:31:45,132 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 177 transitions. [2020-08-22 00:31:45,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-08-22 00:31:45,135 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:31:45,135 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 00:31:45,135 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 00:31:45,135 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:31:45,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:31:45,136 INFO L82 PathProgramCache]: Analyzing trace with hash -1745445590, now seen corresponding path program 1 times [2020-08-22 00:31:45,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:31:45,136 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [146039946] [2020-08-22 00:31:45,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:31:45,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:45,469 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 00:31:45,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:31:45,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:45,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 00:31:45,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:45,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 00:31:45,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:45,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 00:31:45,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:45,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 00:31:45,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:45,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 00:31:45,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:45,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 00:31:45,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:45,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:31:45,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:45,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-22 00:31:45,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:45,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 00:31:45,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:45,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 00:31:45,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:45,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-22 00:31:45,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:45,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-22 00:31:45,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:45,617 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 00:31:45,618 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [146039946] [2020-08-22 00:31:45,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 00:31:45,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 00:31:45,618 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741051291] [2020-08-22 00:31:45,619 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 00:31:45,619 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 00:31:45,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 00:31:45,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-22 00:31:45,620 INFO L87 Difference]: Start difference. First operand 153 states and 177 transitions. Second operand 7 states. [2020-08-22 00:31:46,047 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 00:31:47,686 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 00:31:48,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 00:31:48,516 INFO L93 Difference]: Finished difference Result 445 states and 574 transitions. [2020-08-22 00:31:48,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-22 00:31:48,518 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 77 [2020-08-22 00:31:48,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 00:31:48,524 INFO L225 Difference]: With dead ends: 445 [2020-08-22 00:31:48,525 INFO L226 Difference]: Without dead ends: 320 [2020-08-22 00:31:48,530 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-08-22 00:31:48,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2020-08-22 00:31:48,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 259. [2020-08-22 00:31:48,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2020-08-22 00:31:48,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 309 transitions. [2020-08-22 00:31:48,599 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 309 transitions. Word has length 77 [2020-08-22 00:31:48,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 00:31:48,600 INFO L479 AbstractCegarLoop]: Abstraction has 259 states and 309 transitions. [2020-08-22 00:31:48,600 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 00:31:48,600 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 309 transitions. [2020-08-22 00:31:48,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-08-22 00:31:48,603 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:31:48,603 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 00:31:48,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 00:31:48,604 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:31:48,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:31:48,604 INFO L82 PathProgramCache]: Analyzing trace with hash -1775922839, now seen corresponding path program 1 times [2020-08-22 00:31:48,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:31:48,605 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1700898368] [2020-08-22 00:31:48,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:31:48,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:48,933 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 00:31:48,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:31:48,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:48,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 00:31:48,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:48,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 00:31:48,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:48,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 00:31:48,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:48,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 00:31:48,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:48,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 00:31:48,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:48,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 00:31:48,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:48,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:31:48,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:49,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-22 00:31:49,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:49,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 00:31:49,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:49,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 00:31:49,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:49,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:31:49,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:49,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 00:31:49,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:49,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-08-22 00:31:49,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:49,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-22 00:31:49,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:49,053 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-22 00:31:49,053 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1700898368] [2020-08-22 00:31:49,054 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 00:31:49,054 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 00:31:49,054 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508303675] [2020-08-22 00:31:49,055 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 00:31:49,055 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 00:31:49,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 00:31:49,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-22 00:31:49,056 INFO L87 Difference]: Start difference. First operand 259 states and 309 transitions. Second operand 9 states. [2020-08-22 00:31:49,551 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 00:31:50,174 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 00:31:51,166 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 00:31:51,464 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 00:31:51,908 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 00:31:52,156 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 00:31:52,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 00:31:52,885 INFO L93 Difference]: Finished difference Result 540 states and 684 transitions. [2020-08-22 00:31:52,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-22 00:31:52,885 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 91 [2020-08-22 00:31:52,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 00:31:52,893 INFO L225 Difference]: With dead ends: 540 [2020-08-22 00:31:52,893 INFO L226 Difference]: Without dead ends: 309 [2020-08-22 00:31:52,895 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-08-22 00:31:52,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-08-22 00:31:52,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 258. [2020-08-22 00:31:52,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-08-22 00:31:52,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 306 transitions. [2020-08-22 00:31:52,946 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 306 transitions. Word has length 91 [2020-08-22 00:31:52,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 00:31:52,947 INFO L479 AbstractCegarLoop]: Abstraction has 258 states and 306 transitions. [2020-08-22 00:31:52,947 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 00:31:52,947 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 306 transitions. [2020-08-22 00:31:52,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-08-22 00:31:52,949 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:31:52,949 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 00:31:52,950 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 00:31:52,950 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:31:52,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:31:52,950 INFO L82 PathProgramCache]: Analyzing trace with hash 534241489, now seen corresponding path program 1 times [2020-08-22 00:31:52,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:31:52,951 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1484270422] [2020-08-22 00:31:52,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:31:52,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:53,227 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 00:31:53,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:31:53,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:53,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 00:31:53,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:53,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 00:31:53,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:53,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 00:31:53,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:53,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 00:31:53,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:53,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 00:31:53,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:53,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 00:31:53,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:53,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:31:53,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:53,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-22 00:31:53,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:53,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 00:31:53,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:53,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 00:31:53,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:53,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:31:53,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:53,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 00:31:53,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:53,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:31:53,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:53,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:31:53,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:53,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 00:31:53,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:53,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-08-22 00:31:53,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:53,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-22 00:31:53,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:53,498 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 00:31:53,499 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1484270422] [2020-08-22 00:31:53,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 00:31:53,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 00:31:53,499 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189902523] [2020-08-22 00:31:53,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 00:31:53,501 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 00:31:53,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 00:31:53,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-08-22 00:31:53,502 INFO L87 Difference]: Start difference. First operand 258 states and 306 transitions. Second operand 10 states. [2020-08-22 00:31:54,184 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 00:31:54,840 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 00:31:55,095 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 00:31:55,351 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 00:31:55,601 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 00:31:56,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 00:31:56,528 INFO L93 Difference]: Finished difference Result 502 states and 624 transitions. [2020-08-22 00:31:56,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-22 00:31:56,536 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 103 [2020-08-22 00:31:56,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 00:31:56,539 INFO L225 Difference]: With dead ends: 502 [2020-08-22 00:31:56,540 INFO L226 Difference]: Without dead ends: 272 [2020-08-22 00:31:56,541 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2020-08-22 00:31:56,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2020-08-22 00:31:56,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 233. [2020-08-22 00:31:56,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-08-22 00:31:56,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 264 transitions. [2020-08-22 00:31:56,605 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 264 transitions. Word has length 103 [2020-08-22 00:31:56,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 00:31:56,605 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 264 transitions. [2020-08-22 00:31:56,606 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 00:31:56,606 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 264 transitions. [2020-08-22 00:31:56,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-08-22 00:31:56,607 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:31:56,608 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 00:31:56,608 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 00:31:56,608 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:31:56,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:31:56,608 INFO L82 PathProgramCache]: Analyzing trace with hash 697480839, now seen corresponding path program 1 times [2020-08-22 00:31:56,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:31:56,609 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [722258301] [2020-08-22 00:31:56,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:31:56,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:56,861 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 00:31:56,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:31:56,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:56,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 00:31:56,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:56,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 00:31:56,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:56,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 00:31:56,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:56,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 00:31:56,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:56,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 00:31:56,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:56,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 00:31:56,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:56,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:31:56,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:56,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-22 00:31:56,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:56,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 00:31:56,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:56,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 00:31:56,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:56,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:31:56,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:57,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 00:31:57,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:57,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:31:57,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:57,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:31:57,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:57,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 00:31:57,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:57,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-22 00:31:57,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:57,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-22 00:31:57,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:31:57,069 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 00:31:57,070 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [722258301] [2020-08-22 00:31:57,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 00:31:57,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-22 00:31:57,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418098776] [2020-08-22 00:31:57,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 00:31:57,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 00:31:57,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 00:31:57,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-08-22 00:31:57,074 INFO L87 Difference]: Start difference. First operand 233 states and 264 transitions. Second operand 11 states. [2020-08-22 00:31:57,564 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 00:31:57,825 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 00:31:58,057 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 00:31:58,784 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 00:31:59,034 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 00:31:59,269 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 00:32:00,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 00:32:00,254 INFO L93 Difference]: Finished difference Result 482 states and 584 transitions. [2020-08-22 00:32:00,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 00:32:00,255 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 107 [2020-08-22 00:32:00,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 00:32:00,260 INFO L225 Difference]: With dead ends: 482 [2020-08-22 00:32:00,260 INFO L226 Difference]: Without dead ends: 277 [2020-08-22 00:32:00,262 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-08-22 00:32:00,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-08-22 00:32:00,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 237. [2020-08-22 00:32:00,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-08-22 00:32:00,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 268 transitions. [2020-08-22 00:32:00,353 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 268 transitions. Word has length 107 [2020-08-22 00:32:00,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 00:32:00,354 INFO L479 AbstractCegarLoop]: Abstraction has 237 states and 268 transitions. [2020-08-22 00:32:00,354 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 00:32:00,354 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 268 transitions. [2020-08-22 00:32:00,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-08-22 00:32:00,356 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:32:00,357 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 00:32:00,357 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 00:32:00,357 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:32:00,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:32:00,358 INFO L82 PathProgramCache]: Analyzing trace with hash 456940710, now seen corresponding path program 1 times [2020-08-22 00:32:00,358 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:32:00,359 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1672764201] [2020-08-22 00:32:00,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:32:00,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:00,718 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 00:32:00,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:32:00,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:00,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 00:32:00,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:00,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 00:32:00,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:00,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 00:32:00,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:00,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 00:32:00,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:00,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 00:32:00,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:00,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 00:32:00,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:00,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:32:00,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:00,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-22 00:32:00,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:00,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 00:32:00,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:00,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 00:32:00,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:00,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:32:00,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:00,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 00:32:00,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:00,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:32:00,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:00,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:32:00,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:00,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 00:32:00,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:00,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-22 00:32:00,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:00,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-22 00:32:00,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:00,889 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 00:32:00,894 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1672764201] [2020-08-22 00:32:00,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 00:32:00,895 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 00:32:00,895 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883571213] [2020-08-22 00:32:00,896 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 00:32:00,896 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 00:32:00,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 00:32:00,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-22 00:32:00,896 INFO L87 Difference]: Start difference. First operand 237 states and 268 transitions. Second operand 7 states. [2020-08-22 00:32:01,243 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 00:32:01,785 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 00:32:03,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 00:32:03,474 INFO L93 Difference]: Finished difference Result 651 states and 808 transitions. [2020-08-22 00:32:03,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-22 00:32:03,476 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 107 [2020-08-22 00:32:03,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 00:32:03,479 INFO L225 Difference]: With dead ends: 651 [2020-08-22 00:32:03,480 INFO L226 Difference]: Without dead ends: 442 [2020-08-22 00:32:03,481 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 43 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-08-22 00:32:03,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2020-08-22 00:32:03,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 404. [2020-08-22 00:32:03,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 404 states. [2020-08-22 00:32:03,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 472 transitions. [2020-08-22 00:32:03,553 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 472 transitions. Word has length 107 [2020-08-22 00:32:03,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 00:32:03,553 INFO L479 AbstractCegarLoop]: Abstraction has 404 states and 472 transitions. [2020-08-22 00:32:03,553 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 00:32:03,554 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 472 transitions. [2020-08-22 00:32:03,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-08-22 00:32:03,555 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:32:03,555 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 00:32:03,556 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-22 00:32:03,556 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:32:03,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:32:03,556 INFO L82 PathProgramCache]: Analyzing trace with hash -1562894580, now seen corresponding path program 1 times [2020-08-22 00:32:03,556 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:32:03,557 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [79554906] [2020-08-22 00:32:03,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:32:03,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:03,885 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 00:32:03,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:32:03,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:03,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 00:32:03,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:03,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 00:32:03,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:03,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 00:32:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:03,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 00:32:03,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:03,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 00:32:03,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:03,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 00:32:03,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:03,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-22 00:32:03,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:03,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:32:03,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:03,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-22 00:32:04,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:04,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 00:32:04,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:04,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 00:32:04,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:04,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:32:04,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:04,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 00:32:04,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:04,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:32:04,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:04,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:32:04,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:04,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 00:32:04,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:04,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-08-22 00:32:04,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:04,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-22 00:32:04,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:04,061 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 00:32:04,062 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [79554906] [2020-08-22 00:32:04,062 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 00:32:04,062 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-22 00:32:04,062 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363404544] [2020-08-22 00:32:04,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-22 00:32:04,063 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 00:32:04,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-22 00:32:04,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-08-22 00:32:04,064 INFO L87 Difference]: Start difference. First operand 404 states and 472 transitions. Second operand 12 states. [2020-08-22 00:32:04,540 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 00:32:05,156 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 00:32:06,155 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 00:32:06,481 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 00:32:06,730 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 00:32:06,990 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 00:32:07,248 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 00:32:08,573 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 00:32:08,842 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 00:32:09,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 00:32:09,534 INFO L93 Difference]: Finished difference Result 1116 states and 1385 transitions. [2020-08-22 00:32:09,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-08-22 00:32:09,535 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 111 [2020-08-22 00:32:09,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 00:32:09,543 INFO L225 Difference]: With dead ends: 1116 [2020-08-22 00:32:09,543 INFO L226 Difference]: Without dead ends: 810 [2020-08-22 00:32:09,545 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2020-08-22 00:32:09,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2020-08-22 00:32:09,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 700. [2020-08-22 00:32:09,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 700 states. [2020-08-22 00:32:09,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 810 transitions. [2020-08-22 00:32:09,684 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 810 transitions. Word has length 111 [2020-08-22 00:32:09,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 00:32:09,686 INFO L479 AbstractCegarLoop]: Abstraction has 700 states and 810 transitions. [2020-08-22 00:32:09,686 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-22 00:32:09,686 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 810 transitions. [2020-08-22 00:32:09,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-08-22 00:32:09,689 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:32:09,690 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 00:32:09,690 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-22 00:32:09,690 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:32:09,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:32:09,691 INFO L82 PathProgramCache]: Analyzing trace with hash 903450751, now seen corresponding path program 1 times [2020-08-22 00:32:09,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:32:09,691 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1030864009] [2020-08-22 00:32:09,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:32:09,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:10,047 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 00:32:10,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:32:10,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:10,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 00:32:10,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:10,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 00:32:10,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:10,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 00:32:10,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:10,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 00:32:10,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:10,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 00:32:10,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:10,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 00:32:10,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:10,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 00:32:10,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:10,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:32:10,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:10,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:32:10,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:10,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 00:32:10,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:10,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 00:32:10,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:10,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 00:32:10,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:10,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:32:10,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:10,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 00:32:10,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:10,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:32:10,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:10,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:32:10,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:10,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 00:32:10,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:10,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-22 00:32:10,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:10,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:32:10,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:10,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-08-22 00:32:10,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:10,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:32:10,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:10,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-08-22 00:32:10,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:10,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-08-22 00:32:10,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:10,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 00:32:10,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:10,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:32:10,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:10,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 00:32:10,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:10,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 00:32:10,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:10,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-08-22 00:32:10,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:10,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-08-22 00:32:10,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:10,346 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 21 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-08-22 00:32:10,346 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1030864009] [2020-08-22 00:32:10,347 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 00:32:10,347 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-22 00:32:10,347 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999184839] [2020-08-22 00:32:10,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-22 00:32:10,349 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 00:32:10,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-22 00:32:10,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-08-22 00:32:10,349 INFO L87 Difference]: Start difference. First operand 700 states and 810 transitions. Second operand 16 states. [2020-08-22 00:32:11,206 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 00:32:11,592 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-22 00:32:11,851 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 00:32:12,096 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 00:32:12,716 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 00:32:13,002 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 00:32:13,806 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 00:32:14,457 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 00:32:14,892 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 00:32:15,322 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 00:32:15,580 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 00:32:15,888 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 00:32:16,471 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 00:32:16,884 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 00:32:17,238 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 00:32:17,901 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 00:32:18,158 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 00:32:18,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 00:32:18,813 INFO L93 Difference]: Finished difference Result 1513 states and 1807 transitions. [2020-08-22 00:32:18,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-08-22 00:32:18,813 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 172 [2020-08-22 00:32:18,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 00:32:18,820 INFO L225 Difference]: With dead ends: 1513 [2020-08-22 00:32:18,821 INFO L226 Difference]: Without dead ends: 907 [2020-08-22 00:32:18,824 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 618 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=568, Invalid=2084, Unknown=0, NotChecked=0, Total=2652 [2020-08-22 00:32:18,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2020-08-22 00:32:19,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 828. [2020-08-22 00:32:19,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 828 states. [2020-08-22 00:32:19,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 968 transitions. [2020-08-22 00:32:19,008 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 968 transitions. Word has length 172 [2020-08-22 00:32:19,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 00:32:19,009 INFO L479 AbstractCegarLoop]: Abstraction has 828 states and 968 transitions. [2020-08-22 00:32:19,009 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-22 00:32:19,009 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 968 transitions. [2020-08-22 00:32:19,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2020-08-22 00:32:19,017 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:32:19,017 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, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 00:32:19,017 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-22 00:32:19,018 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:32:19,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:32:19,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1791991912, now seen corresponding path program 1 times [2020-08-22 00:32:19,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:32:19,019 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1372621989] [2020-08-22 00:32:19,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:32:19,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,327 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 00:32:19,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:32:19,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 00:32:19,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 00:32:19,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 00:32:19,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 00:32:19,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 00:32:19,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 00:32:19,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 00:32:19,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:32:19,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:32:19,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 00:32:19,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 00:32:19,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 00:32:19,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:32:19,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 00:32:19,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:32:19,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:32:19,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 00:32:19,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-22 00:32:19,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:32:19,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-08-22 00:32:19,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:32:19,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:32:19,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 00:32:19,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 00:32:19,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 00:32:19,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:32:19,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 00:32:19,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 00:32:19,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 00:32:19,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:32:19,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-08-22 00:32:19,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:32:19,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:32:19,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 00:32:19,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 00:32:19,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 00:32:19,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:32:19,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 00:32:19,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-22 00:32:19,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:32:19,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2020-08-22 00:32:19,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:32:19,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2020-08-22 00:32:19,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 00:32:19,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 00:32:19,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:32:19,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 00:32:19,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:32:19,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:32:19,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 00:32:19,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2020-08-22 00:32:19,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-08-22 00:32:19,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:19,892 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 78 proven. 29 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2020-08-22 00:32:19,892 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1372621989] [2020-08-22 00:32:19,892 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 00:32:19,893 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-08-22 00:32:19,893 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566899618] [2020-08-22 00:32:19,894 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-08-22 00:32:19,894 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 00:32:19,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-08-22 00:32:19,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2020-08-22 00:32:19,897 INFO L87 Difference]: Start difference. First operand 828 states and 968 transitions. Second operand 15 states. [2020-08-22 00:32:21,586 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 00:32:21,864 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 00:32:22,124 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 00:32:22,398 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 00:32:23,779 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 00:32:24,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 00:32:24,873 INFO L93 Difference]: Finished difference Result 2180 states and 2653 transitions. [2020-08-22 00:32:24,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-08-22 00:32:24,878 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 303 [2020-08-22 00:32:24,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 00:32:24,889 INFO L225 Difference]: With dead ends: 2180 [2020-08-22 00:32:24,889 INFO L226 Difference]: Without dead ends: 1293 [2020-08-22 00:32:24,892 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 107 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=230, Invalid=762, Unknown=0, NotChecked=0, Total=992 [2020-08-22 00:32:24,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1293 states. [2020-08-22 00:32:25,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1293 to 1090. [2020-08-22 00:32:25,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1090 states. [2020-08-22 00:32:25,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1090 states to 1090 states and 1305 transitions. [2020-08-22 00:32:25,082 INFO L78 Accepts]: Start accepts. Automaton has 1090 states and 1305 transitions. Word has length 303 [2020-08-22 00:32:25,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 00:32:25,082 INFO L479 AbstractCegarLoop]: Abstraction has 1090 states and 1305 transitions. [2020-08-22 00:32:25,083 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-08-22 00:32:25,083 INFO L276 IsEmpty]: Start isEmpty. Operand 1090 states and 1305 transitions. [2020-08-22 00:32:25,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2020-08-22 00:32:25,089 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:32:25,090 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-22 00:32:25,090 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-22 00:32:25,090 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:32:25,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:32:25,091 INFO L82 PathProgramCache]: Analyzing trace with hash -943069261, now seen corresponding path program 1 times [2020-08-22 00:32:25,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:32:25,091 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [997837251] [2020-08-22 00:32:25,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:32:25,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,400 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 00:32:25,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:32:25,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 00:32:25,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 00:32:25,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 00:32:25,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 00:32:25,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 00:32:25,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 00:32:25,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 00:32:25,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:32:25,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:32:25,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 00:32:25,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 00:32:25,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 00:32:25,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:32:25,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 00:32:25,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:32:25,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:32:25,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 00:32:25,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-22 00:32:25,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:32:25,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-08-22 00:32:25,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:32:25,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:32:25,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 00:32:25,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 00:32:25,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 00:32:25,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:32:25,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 00:32:25,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 00:32:25,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 00:32:25,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:32:25,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-22 00:32:25,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-08-22 00:32:25,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:32:25,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:32:25,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 00:32:25,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 00:32:25,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 00:32:25,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:32:25,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 00:32:25,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-22 00:32:25,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:32:25,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2020-08-22 00:32:25,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:32:25,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2020-08-22 00:32:25,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 00:32:25,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 00:32:25,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:32:25,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 00:32:25,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:32:25,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:32:25,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 00:32:25,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-08-22 00:32:25,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2020-08-22 00:32:25,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:25,820 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 85 proven. 38 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2020-08-22 00:32:25,821 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [997837251] [2020-08-22 00:32:25,821 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 00:32:25,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-22 00:32:25,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088533006] [2020-08-22 00:32:25,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-22 00:32:25,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 00:32:25,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-22 00:32:25,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2020-08-22 00:32:25,823 INFO L87 Difference]: Start difference. First operand 1090 states and 1305 transitions. Second operand 16 states. [2020-08-22 00:32:26,621 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 00:32:26,945 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 00:32:27,196 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 00:32:27,434 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 00:32:28,071 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 00:32:28,940 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 00:32:29,186 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 00:32:29,656 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 00:32:30,210 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 00:32:31,009 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 00:32:31,247 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 00:32:31,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 00:32:31,823 INFO L93 Difference]: Finished difference Result 2070 states and 2513 transitions. [2020-08-22 00:32:31,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-08-22 00:32:31,823 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 309 [2020-08-22 00:32:31,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 00:32:31,834 INFO L225 Difference]: With dead ends: 2070 [2020-08-22 00:32:31,834 INFO L226 Difference]: Without dead ends: 1093 [2020-08-22 00:32:31,838 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=297, Invalid=1185, Unknown=0, NotChecked=0, Total=1482 [2020-08-22 00:32:31,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1093 states. [2020-08-22 00:32:32,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1093 to 1050. [2020-08-22 00:32:32,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1050 states. [2020-08-22 00:32:32,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1239 transitions. [2020-08-22 00:32:32,078 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1239 transitions. Word has length 309 [2020-08-22 00:32:32,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 00:32:32,078 INFO L479 AbstractCegarLoop]: Abstraction has 1050 states and 1239 transitions. [2020-08-22 00:32:32,079 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-22 00:32:32,079 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1239 transitions. [2020-08-22 00:32:32,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2020-08-22 00:32:32,084 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:32:32,084 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-22 00:32:32,084 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-22 00:32:32,085 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:32:32,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:32:32,085 INFO L82 PathProgramCache]: Analyzing trace with hash -828307193, now seen corresponding path program 1 times [2020-08-22 00:32:32,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:32:32,085 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [183030769] [2020-08-22 00:32:32,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:32:32,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,385 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 00:32:32,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:32:32,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 00:32:32,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 00:32:32,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 00:32:32,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 00:32:32,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 00:32:32,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 00:32:32,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 00:32:32,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:32:32,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:32:32,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 00:32:32,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 00:32:32,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 00:32:32,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:32:32,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 00:32:32,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:32:32,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:32:32,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 00:32:32,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-22 00:32:32,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:32:32,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-08-22 00:32:32,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:32:32,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:32:32,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 00:32:32,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 00:32:32,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 00:32:32,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:32:32,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 00:32:32,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 00:32:32,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 00:32:32,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:32:32,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-22 00:32:32,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-08-22 00:32:32,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:32:32,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:32:32,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 00:32:32,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 00:32:32,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 00:32:32,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:32:32,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 00:32:32,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-22 00:32:32,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:32:32,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2020-08-22 00:32:32,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-08-22 00:32:32,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:32:32,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2020-08-22 00:32:32,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 00:32:32,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 00:32:32,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:32:32,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 00:32:32,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:32:32,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 00:32:32,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 00:32:32,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2020-08-22 00:32:32,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2020-08-22 00:32:32,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:32,737 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 73 proven. 2 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2020-08-22 00:32:32,738 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [183030769] [2020-08-22 00:32:32,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 00:32:32,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-22 00:32:32,738 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15492864] [2020-08-22 00:32:32,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 00:32:32,739 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 00:32:32,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 00:32:32,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-08-22 00:32:32,740 INFO L87 Difference]: Start difference. First operand 1050 states and 1239 transitions. Second operand 11 states. [2020-08-22 00:32:34,371 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 00:32:34,605 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 00:32:34,846 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 00:32:35,098 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 00:32:35,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 00:32:35,466 INFO L93 Difference]: Finished difference Result 2022 states and 2422 transitions. [2020-08-22 00:32:35,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-22 00:32:35,471 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 314 [2020-08-22 00:32:35,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 00:32:35,478 INFO L225 Difference]: With dead ends: 2022 [2020-08-22 00:32:35,479 INFO L226 Difference]: Without dead ends: 1085 [2020-08-22 00:32:35,482 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-08-22 00:32:35,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2020-08-22 00:32:35,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 1060. [2020-08-22 00:32:35,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1060 states. [2020-08-22 00:32:35,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1060 states to 1060 states and 1249 transitions. [2020-08-22 00:32:35,705 INFO L78 Accepts]: Start accepts. Automaton has 1060 states and 1249 transitions. Word has length 314 [2020-08-22 00:32:35,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 00:32:35,707 INFO L479 AbstractCegarLoop]: Abstraction has 1060 states and 1249 transitions. [2020-08-22 00:32:35,707 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 00:32:35,707 INFO L276 IsEmpty]: Start isEmpty. Operand 1060 states and 1249 transitions. [2020-08-22 00:32:35,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2020-08-22 00:32:35,713 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:32:35,713 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-22 00:32:35,714 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-22 00:32:35,714 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:32:35,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:32:35,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1324799625, now seen corresponding path program 1 times [2020-08-22 00:32:35,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:32:35,715 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1539028798] [2020-08-22 00:32:35,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:32:35,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:36,044 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 00:32:36,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:32:36,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:36,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 00:32:36,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:36,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 00:32:36,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:36,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 00:32:36,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:32:36,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 00:32:36,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat