/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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 03:46:29,149 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 03:46:29,152 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 03:46:29,177 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 03:46:29,178 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 03:46:29,179 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 03:46:29,180 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 03:46:29,182 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 03:46:29,183 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 03:46:29,184 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 03:46:29,185 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 03:46:29,186 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 03:46:29,186 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 03:46:29,187 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 03:46:29,188 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 03:46:29,189 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 03:46:29,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 03:46:29,191 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 03:46:29,192 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 03:46:29,194 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 03:46:29,195 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 03:46:29,196 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 03:46:29,197 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 03:46:29,198 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 03:46:29,200 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 03:46:29,201 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 03:46:29,201 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 03:46:29,201 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 03:46:29,202 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 03:46:29,203 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 03:46:29,203 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 03:46:29,204 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 03:46:29,204 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 03:46:29,205 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 03:46:29,206 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 03:46:29,206 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 03:46:29,207 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 03:46:29,207 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 03:46:29,207 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 03:46:29,208 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 03:46:29,209 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 03:46:29,209 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 03:46:29,234 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 03:46:29,235 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 03:46:29,236 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 03:46:29,237 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 03:46:29,237 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 03:46:29,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 03:46:29,237 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 03:46:29,238 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 03:46:29,238 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 03:46:29,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 03:46:29,238 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 03:46:29,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 03:46:29,239 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 03:46:29,239 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 03:46:29,239 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 03:46:29,239 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 03:46:29,239 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 03:46:29,240 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 03:46:29,240 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 03:46:29,240 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 03:46:29,240 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 03:46:29,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 03:46:29,241 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 03:46:29,241 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 03:46:29,241 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 03:46:29,241 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 03:46:29,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 03:46:29,242 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 03:46:29,242 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 03:46:29,242 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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; [2020-08-22 03:46:29,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 03:46:29,583 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 03:46:29,588 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 03:46:29,590 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 03:46:29,590 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 03:46:29,591 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product57.cil.c [2020-08-22 03:46:29,647 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/08949ec41/087bb52c852a43bcb99f4260fd7ba6ad/FLAG784e2981f [2020-08-22 03:46:30,157 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 03:46:30,157 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product57.cil.c [2020-08-22 03:46:30,170 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/08949ec41/087bb52c852a43bcb99f4260fd7ba6ad/FLAG784e2981f [2020-08-22 03:46:30,508 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/08949ec41/087bb52c852a43bcb99f4260fd7ba6ad [2020-08-22 03:46:30,517 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 03:46:30,519 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 03:46:30,520 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 03:46:30,521 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 03:46:30,524 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 03:46:30,526 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 03:46:30" (1/1) ... [2020-08-22 03:46:30,529 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cf744c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:46:30, skipping insertion in model container [2020-08-22 03:46:30,529 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 03:46:30" (1/1) ... [2020-08-22 03:46:30,537 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 03:46:30,584 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 03:46:31,017 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 03:46:31,036 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 03:46:31,127 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 03:46:31,170 INFO L208 MainTranslator]: Completed translation [2020-08-22 03:46:31,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:46:31 WrapperNode [2020-08-22 03:46:31,172 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 03:46:31,173 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 03:46:31,173 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 03:46:31,173 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 03:46:31,187 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:46:31" (1/1) ... [2020-08-22 03:46:31,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:46:31" (1/1) ... [2020-08-22 03:46:31,207 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:46:31" (1/1) ... [2020-08-22 03:46:31,208 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:46:31" (1/1) ... [2020-08-22 03:46:31,240 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:46:31" (1/1) ... [2020-08-22 03:46:31,251 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:46:31" (1/1) ... [2020-08-22 03:46:31,257 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:46:31" (1/1) ... [2020-08-22 03:46:31,266 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 03:46:31,267 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 03:46:31,267 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 03:46:31,267 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 03:46:31,268 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:46:31" (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 03:46:31,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 03:46:31,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 03:46:31,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 03:46:31,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 03:46:31,332 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 03:46:31,332 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 03:46:31,333 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 03:46:31,333 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 03:46:31,333 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 03:46:31,333 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 03:46:31,333 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 03:46:31,333 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 03:46:31,334 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 03:46:31,334 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 03:46:31,334 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 03:46:31,334 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 03:46:31,334 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 03:46:31,334 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 03:46:31,335 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 03:46:31,335 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-22 03:46:31,335 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-22 03:46:31,335 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 03:46:31,335 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 03:46:31,335 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 03:46:31,335 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 03:46:31,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 03:46:31,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 03:46:31,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-08-22 03:46:31,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-08-22 03:46:31,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-08-22 03:46:31,337 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 03:46:31,337 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 03:46:31,337 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-22 03:46:31,337 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-08-22 03:46:31,337 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 03:46:31,337 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-08-22 03:46:31,337 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 03:46:31,338 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 03:46:31,338 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 03:46:31,338 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 03:46:31,338 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 03:46:31,338 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-22 03:46:31,338 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-22 03:46:31,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 03:46:31,339 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 03:46:31,339 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 03:46:31,339 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 03:46:31,339 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 03:46:31,339 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 03:46:31,339 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 03:46:31,340 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 03:46:31,340 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 03:46:31,340 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 03:46:31,340 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 03:46:31,340 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 03:46:31,341 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 03:46:31,341 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 03:46:31,341 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 03:46:31,341 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-08-22 03:46:31,341 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 03:46:31,341 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 03:46:31,342 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 03:46:31,342 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 03:46:31,342 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 03:46:31,342 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 03:46:31,342 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 03:46:31,342 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-22 03:46:31,343 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-22 03:46:31,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 03:46:31,343 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 03:46:31,343 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 03:46:31,343 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 03:46:31,343 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 03:46:31,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 03:46:31,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 03:46:31,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 03:46:31,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 03:46:31,344 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 03:46:31,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 03:46:31,345 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 03:46:31,345 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 03:46:31,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 03:46:31,345 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 03:46:31,345 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 03:46:31,345 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 03:46:31,346 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 03:46:31,346 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-08-22 03:46:31,346 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-08-22 03:46:31,346 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 03:46:31,346 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 03:46:31,346 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 03:46:31,347 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-22 03:46:31,347 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-22 03:46:31,347 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-08-22 03:46:31,347 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-22 03:46:31,347 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-08-22 03:46:31,347 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 03:46:31,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 03:46:31,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 03:46:31,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 03:46:32,462 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 03:46:32,462 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 03:46:32,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 03:46:32 BoogieIcfgContainer [2020-08-22 03:46:32,468 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 03:46:32,470 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 03:46:32,470 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 03:46:32,473 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 03:46:32,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 03:46:30" (1/3) ... [2020-08-22 03:46:32,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ae96109 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 03:46:32, skipping insertion in model container [2020-08-22 03:46:32,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:46:31" (2/3) ... [2020-08-22 03:46:32,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ae96109 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 03:46:32, skipping insertion in model container [2020-08-22 03:46:32,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 03:46:32" (3/3) ... [2020-08-22 03:46:32,477 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product57.cil.c [2020-08-22 03:46:32,488 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 03:46:32,496 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 03:46:32,511 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 03:46:32,538 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 03:46:32,538 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 03:46:32,538 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 03:46:32,538 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 03:46:32,539 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 03:46:32,539 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 03:46:32,539 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 03:46:32,539 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 03:46:32,563 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states. [2020-08-22 03:46:32,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-08-22 03:46:32,574 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:46:32,575 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 03:46:32,576 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:46:32,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:46:32,583 INFO L82 PathProgramCache]: Analyzing trace with hash 479094946, now seen corresponding path program 1 times [2020-08-22 03:46:32,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:46:32,593 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [307037970] [2020-08-22 03:46:32,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:46:32,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:33,363 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 03:46:33,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:46:33,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:33,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 03:46:33,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:33,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 03:46:33,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:33,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 03:46:33,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:33,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 03:46:33,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:33,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 03:46:33,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:33,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 03:46:33,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:33,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:46:33,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:33,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-22 03:46:33,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:33,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 03:46:33,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:33,488 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 03:46:33,489 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [307037970] [2020-08-22 03:46:33,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 03:46:33,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 03:46:33,492 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921224139] [2020-08-22 03:46:33,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 03:46:33,498 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:46:33,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 03:46:33,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-22 03:46:33,515 INFO L87 Difference]: Start difference. First operand 196 states. Second operand 4 states. [2020-08-22 03:46:34,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:46:34,733 INFO L93 Difference]: Finished difference Result 335 states and 423 transitions. [2020-08-22 03:46:34,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 03:46:34,735 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-08-22 03:46:34,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:46:34,750 INFO L225 Difference]: With dead ends: 335 [2020-08-22 03:46:34,750 INFO L226 Difference]: Without dead ends: 183 [2020-08-22 03:46:34,755 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 03:46:34,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2020-08-22 03:46:34,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 153. [2020-08-22 03:46:34,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-08-22 03:46:34,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 178 transitions. [2020-08-22 03:46:34,913 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 178 transitions. Word has length 59 [2020-08-22 03:46:34,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:46:34,914 INFO L479 AbstractCegarLoop]: Abstraction has 153 states and 178 transitions. [2020-08-22 03:46:34,914 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 03:46:34,915 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 178 transitions. [2020-08-22 03:46:34,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-08-22 03:46:34,930 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:46:34,931 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 03:46:34,933 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 03:46:34,933 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:46:34,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:46:34,934 INFO L82 PathProgramCache]: Analyzing trace with hash 1126861649, now seen corresponding path program 1 times [2020-08-22 03:46:34,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:46:34,934 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1370118789] [2020-08-22 03:46:34,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:46:35,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:35,430 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 03:46:35,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:46:35,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:35,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 03:46:35,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:35,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 03:46:35,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:35,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 03:46:35,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:35,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 03:46:35,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:35,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 03:46:35,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:35,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 03:46:35,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:35,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:46:35,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:35,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-22 03:46:35,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:35,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-22 03:46:35,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:35,581 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 03:46:35,582 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1370118789] [2020-08-22 03:46:35,582 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 03:46:35,582 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 03:46:35,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070942342] [2020-08-22 03:46:35,584 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 03:46:35,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:46:35,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 03:46:35,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-22 03:46:35,589 INFO L87 Difference]: Start difference. First operand 153 states and 178 transitions. Second operand 9 states. [2020-08-22 03:46:36,004 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 03:46:36,314 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 03:46:36,620 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 03:46:36,920 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 03:46:38,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:46:38,372 INFO L93 Difference]: Finished difference Result 308 states and 378 transitions. [2020-08-22 03:46:38,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 03:46:38,378 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 64 [2020-08-22 03:46:38,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:46:38,384 INFO L225 Difference]: With dead ends: 308 [2020-08-22 03:46:38,385 INFO L226 Difference]: Without dead ends: 183 [2020-08-22 03:46:38,389 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-08-22 03:46:38,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2020-08-22 03:46:38,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 153. [2020-08-22 03:46:38,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-08-22 03:46:38,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 177 transitions. [2020-08-22 03:46:38,439 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 177 transitions. Word has length 64 [2020-08-22 03:46:38,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:46:38,440 INFO L479 AbstractCegarLoop]: Abstraction has 153 states and 177 transitions. [2020-08-22 03:46:38,440 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 03:46:38,440 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 177 transitions. [2020-08-22 03:46:38,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-08-22 03:46:38,443 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:46:38,444 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 03:46:38,444 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 03:46:38,444 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:46:38,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:46:38,445 INFO L82 PathProgramCache]: Analyzing trace with hash -1745445590, now seen corresponding path program 1 times [2020-08-22 03:46:38,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:46:38,445 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [693314240] [2020-08-22 03:46:38,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:46:38,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:38,798 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 03:46:38,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:46:38,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:38,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 03:46:38,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:38,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 03:46:38,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:38,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 03:46:38,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:38,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 03:46:38,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:38,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 03:46:38,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:38,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 03:46:38,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:38,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:46:38,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:38,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-22 03:46:38,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:38,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:46:38,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:38,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:46:38,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:38,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-22 03:46:38,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:38,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-22 03:46:38,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:38,924 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 03:46:38,924 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [693314240] [2020-08-22 03:46:38,925 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 03:46:38,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 03:46:38,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346636886] [2020-08-22 03:46:38,926 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 03:46:38,926 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:46:38,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 03:46:38,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-22 03:46:38,927 INFO L87 Difference]: Start difference. First operand 153 states and 177 transitions. Second operand 7 states. [2020-08-22 03:46:39,369 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 03:46:40,915 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 03:46:41,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:46:41,737 INFO L93 Difference]: Finished difference Result 445 states and 574 transitions. [2020-08-22 03:46:41,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-22 03:46:41,738 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 77 [2020-08-22 03:46:41,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:46:41,743 INFO L225 Difference]: With dead ends: 445 [2020-08-22 03:46:41,743 INFO L226 Difference]: Without dead ends: 320 [2020-08-22 03:46:41,745 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 03:46:41,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2020-08-22 03:46:41,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 259. [2020-08-22 03:46:41,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2020-08-22 03:46:41,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 309 transitions. [2020-08-22 03:46:41,811 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 309 transitions. Word has length 77 [2020-08-22 03:46:41,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:46:41,812 INFO L479 AbstractCegarLoop]: Abstraction has 259 states and 309 transitions. [2020-08-22 03:46:41,812 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 03:46:41,812 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 309 transitions. [2020-08-22 03:46:41,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-08-22 03:46:41,813 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:46:41,814 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 03:46:41,814 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 03:46:41,814 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:46:41,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:46:41,815 INFO L82 PathProgramCache]: Analyzing trace with hash -1775922839, now seen corresponding path program 1 times [2020-08-22 03:46:41,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:46:41,815 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [651199844] [2020-08-22 03:46:41,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:46:41,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:42,173 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 03:46:42,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:46:42,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:42,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 03:46:42,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:42,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 03:46:42,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:42,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 03:46:42,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:42,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 03:46:42,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:42,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 03:46:42,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:42,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 03:46:42,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:42,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:46:42,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:42,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-22 03:46:42,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:42,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:46:42,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:42,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:46:42,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:42,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:46:42,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:42,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 03:46:42,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:42,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-08-22 03:46:42,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:42,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-22 03:46:42,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:42,353 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 03:46:42,354 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [651199844] [2020-08-22 03:46:42,354 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 03:46:42,354 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 03:46:42,355 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757646398] [2020-08-22 03:46:42,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 03:46:42,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:46:42,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 03:46:42,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-22 03:46:42,357 INFO L87 Difference]: Start difference. First operand 259 states and 309 transitions. Second operand 9 states. [2020-08-22 03:46:42,767 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 03:46:43,338 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 03:46:44,290 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 03:46:44,567 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 03:46:44,970 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 03:46:45,230 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 03:46:45,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:46:45,924 INFO L93 Difference]: Finished difference Result 540 states and 684 transitions. [2020-08-22 03:46:45,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-22 03:46:45,925 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 91 [2020-08-22 03:46:45,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:46:45,930 INFO L225 Difference]: With dead ends: 540 [2020-08-22 03:46:45,930 INFO L226 Difference]: Without dead ends: 309 [2020-08-22 03:46:45,931 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-08-22 03:46:45,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-08-22 03:46:45,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 258. [2020-08-22 03:46:45,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-08-22 03:46:46,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 306 transitions. [2020-08-22 03:46:46,001 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 306 transitions. Word has length 91 [2020-08-22 03:46:46,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:46:46,002 INFO L479 AbstractCegarLoop]: Abstraction has 258 states and 306 transitions. [2020-08-22 03:46:46,002 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 03:46:46,002 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 306 transitions. [2020-08-22 03:46:46,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-08-22 03:46:46,004 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:46:46,004 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 03:46:46,005 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 03:46:46,005 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:46:46,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:46:46,005 INFO L82 PathProgramCache]: Analyzing trace with hash 534241489, now seen corresponding path program 1 times [2020-08-22 03:46:46,006 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:46:46,006 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [670370828] [2020-08-22 03:46:46,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:46:46,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:46,315 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 03:46:46,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:46:46,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:46,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 03:46:46,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:46,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 03:46:46,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:46,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 03:46:46,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:46,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 03:46:46,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:46,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 03:46:46,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:46,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 03:46:46,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:46,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:46:46,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:46,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-22 03:46:46,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:46,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:46:46,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:46,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:46:46,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:46,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:46:46,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:46,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 03:46:46,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:46,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:46:46,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:46,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:46:46,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:46,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 03:46:46,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:46,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-08-22 03:46:46,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:46,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-22 03:46:46,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:46,459 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 03:46:46,460 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [670370828] [2020-08-22 03:46:46,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 03:46:46,460 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 03:46:46,460 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295172611] [2020-08-22 03:46:46,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 03:46:46,461 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:46:46,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 03:46:46,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-08-22 03:46:46,462 INFO L87 Difference]: Start difference. First operand 258 states and 306 transitions. Second operand 10 states. [2020-08-22 03:46:47,114 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 03:46:47,728 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 03:46:47,964 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 03:46:48,207 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 03:46:48,459 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 03:46:49,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:46:49,295 INFO L93 Difference]: Finished difference Result 502 states and 624 transitions. [2020-08-22 03:46:49,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-22 03:46:49,296 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 103 [2020-08-22 03:46:49,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:46:49,302 INFO L225 Difference]: With dead ends: 502 [2020-08-22 03:46:49,302 INFO L226 Difference]: Without dead ends: 272 [2020-08-22 03:46:49,304 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2020-08-22 03:46:49,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2020-08-22 03:46:49,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 233. [2020-08-22 03:46:49,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-08-22 03:46:49,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 264 transitions. [2020-08-22 03:46:49,361 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 264 transitions. Word has length 103 [2020-08-22 03:46:49,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:46:49,361 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 264 transitions. [2020-08-22 03:46:49,361 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 03:46:49,361 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 264 transitions. [2020-08-22 03:46:49,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-08-22 03:46:49,364 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:46:49,365 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 03:46:49,365 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 03:46:49,365 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:46:49,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:46:49,365 INFO L82 PathProgramCache]: Analyzing trace with hash 697480839, now seen corresponding path program 1 times [2020-08-22 03:46:49,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:46:49,366 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2069885147] [2020-08-22 03:46:49,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:46:49,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:49,661 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 03:46:49,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:46:49,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:49,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 03:46:49,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:49,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 03:46:49,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:49,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 03:46:49,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:49,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 03:46:49,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:49,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 03:46:49,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:49,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 03:46:49,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:49,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:46:49,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:49,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-22 03:46:49,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:49,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:46:49,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:49,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:46:49,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:49,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:46:49,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:49,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 03:46:49,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:49,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:46:49,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:49,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:46:49,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:49,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 03:46:49,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:49,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-22 03:46:49,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:49,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-22 03:46:49,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:49,833 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 03:46:49,833 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2069885147] [2020-08-22 03:46:49,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 03:46:49,835 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-22 03:46:49,835 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525031592] [2020-08-22 03:46:49,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 03:46:49,838 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:46:49,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 03:46:49,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-08-22 03:46:49,838 INFO L87 Difference]: Start difference. First operand 233 states and 264 transitions. Second operand 11 states. [2020-08-22 03:46:50,360 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 03:46:50,596 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 03:46:50,822 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 03:46:51,495 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 03:46:51,741 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 03:46:52,002 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 03:46:52,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:46:52,931 INFO L93 Difference]: Finished difference Result 482 states and 584 transitions. [2020-08-22 03:46:52,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 03:46:52,933 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 107 [2020-08-22 03:46:52,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:46:52,936 INFO L225 Difference]: With dead ends: 482 [2020-08-22 03:46:52,936 INFO L226 Difference]: Without dead ends: 277 [2020-08-22 03:46:52,937 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 03:46:52,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-08-22 03:46:52,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 237. [2020-08-22 03:46:52,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-08-22 03:46:52,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 268 transitions. [2020-08-22 03:46:52,980 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 268 transitions. Word has length 107 [2020-08-22 03:46:52,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:46:52,980 INFO L479 AbstractCegarLoop]: Abstraction has 237 states and 268 transitions. [2020-08-22 03:46:52,981 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 03:46:52,981 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 268 transitions. [2020-08-22 03:46:52,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-08-22 03:46:52,982 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:46:52,983 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 03:46:52,983 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 03:46:52,983 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:46:52,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:46:52,983 INFO L82 PathProgramCache]: Analyzing trace with hash 456940710, now seen corresponding path program 1 times [2020-08-22 03:46:52,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:46:52,984 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1334028881] [2020-08-22 03:46:52,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:46:53,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:53,233 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 03:46:53,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:46:53,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:53,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 03:46:53,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:53,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 03:46:53,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:53,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 03:46:53,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:53,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 03:46:53,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:53,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 03:46:53,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:53,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 03:46:53,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:53,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:46:53,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:53,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-22 03:46:53,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:53,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:46:53,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:53,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:46:53,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:53,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:46:53,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:53,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 03:46:53,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:53,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:46:53,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:53,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:46:53,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:53,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 03:46:53,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:53,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-22 03:46:53,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:53,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-22 03:46:53,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:53,391 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 03:46:53,396 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1334028881] [2020-08-22 03:46:53,397 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 03:46:53,397 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 03:46:53,397 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405219243] [2020-08-22 03:46:53,398 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 03:46:53,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:46:53,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 03:46:53,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-22 03:46:53,399 INFO L87 Difference]: Start difference. First operand 237 states and 268 transitions. Second operand 7 states. [2020-08-22 03:46:53,763 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 03:46:54,403 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 03:46:56,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:46:56,093 INFO L93 Difference]: Finished difference Result 651 states and 808 transitions. [2020-08-22 03:46:56,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-22 03:46:56,094 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 107 [2020-08-22 03:46:56,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:46:56,098 INFO L225 Difference]: With dead ends: 651 [2020-08-22 03:46:56,098 INFO L226 Difference]: Without dead ends: 442 [2020-08-22 03:46:56,100 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 43 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-08-22 03:46:56,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2020-08-22 03:46:56,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 404. [2020-08-22 03:46:56,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 404 states. [2020-08-22 03:46:56,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 472 transitions. [2020-08-22 03:46:56,166 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 472 transitions. Word has length 107 [2020-08-22 03:46:56,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:46:56,166 INFO L479 AbstractCegarLoop]: Abstraction has 404 states and 472 transitions. [2020-08-22 03:46:56,166 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 03:46:56,166 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 472 transitions. [2020-08-22 03:46:56,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-08-22 03:46:56,168 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:46:56,168 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 03:46:56,169 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-22 03:46:56,169 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:46:56,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:46:56,169 INFO L82 PathProgramCache]: Analyzing trace with hash -1562894580, now seen corresponding path program 1 times [2020-08-22 03:46:56,169 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:46:56,170 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [220245523] [2020-08-22 03:46:56,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:46:56,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:56,501 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 03:46:56,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:46:56,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:56,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 03:46:56,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:56,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 03:46:56,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:56,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 03:46:56,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:56,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 03:46:56,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:56,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 03:46:56,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:56,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 03:46:56,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:56,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-22 03:46:56,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:56,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:46:56,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:56,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-22 03:46:56,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:56,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:46:56,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:56,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:46:56,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:56,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:46:56,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:56,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 03:46:56,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:56,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:46:56,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:56,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:46:56,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:56,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 03:46:56,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:56,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-08-22 03:46:56,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:56,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-22 03:46:56,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:46:56,669 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 03:46:56,669 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [220245523] [2020-08-22 03:46:56,669 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 03:46:56,670 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-22 03:46:56,670 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265369510] [2020-08-22 03:46:56,670 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-22 03:46:56,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:46:56,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-22 03:46:56,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-08-22 03:46:56,671 INFO L87 Difference]: Start difference. First operand 404 states and 472 transitions. Second operand 12 states. [2020-08-22 03:46:57,071 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 03:46:57,701 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 03:46:58,703 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 03:46:59,002 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 03:46:59,256 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 03:46:59,528 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 03:46:59,803 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 03:47:01,122 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 03:47:01,378 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 03:47:02,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:47:02,048 INFO L93 Difference]: Finished difference Result 1116 states and 1385 transitions. [2020-08-22 03:47:02,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-08-22 03:47:02,049 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 111 [2020-08-22 03:47:02,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:47:02,054 INFO L225 Difference]: With dead ends: 1116 [2020-08-22 03:47:02,054 INFO L226 Difference]: Without dead ends: 810 [2020-08-22 03:47:02,056 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 03:47:02,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2020-08-22 03:47:02,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 700. [2020-08-22 03:47:02,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 700 states. [2020-08-22 03:47:02,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 810 transitions. [2020-08-22 03:47:02,174 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 810 transitions. Word has length 111 [2020-08-22 03:47:02,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:47:02,174 INFO L479 AbstractCegarLoop]: Abstraction has 700 states and 810 transitions. [2020-08-22 03:47:02,174 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-22 03:47:02,175 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 810 transitions. [2020-08-22 03:47:02,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-08-22 03:47:02,177 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:47:02,178 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 03:47:02,178 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-22 03:47:02,178 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:47:02,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:47:02,179 INFO L82 PathProgramCache]: Analyzing trace with hash 903450751, now seen corresponding path program 1 times [2020-08-22 03:47:02,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:47:02,179 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1482034243] [2020-08-22 03:47:02,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:47:02,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:02,566 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 03:47:02,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:47:02,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:02,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 03:47:02,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:02,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 03:47:02,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:02,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 03:47:02,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:02,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 03:47:02,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:02,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 03:47:02,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:02,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 03:47:02,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:02,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 03:47:02,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:02,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:47:02,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:02,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:47:02,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:02,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 03:47:02,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:02,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:47:02,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:02,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:47:02,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:02,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:47:02,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:02,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 03:47:02,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:02,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:47:02,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:02,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:47:02,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:02,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 03:47:02,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:02,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-22 03:47:02,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:02,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:47:02,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:02,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-08-22 03:47:02,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:02,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:47:02,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:02,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-08-22 03:47:02,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:02,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-08-22 03:47:02,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:02,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:47:02,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:02,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:47:02,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:02,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 03:47:02,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:02,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:47:02,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:02,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-08-22 03:47:02,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:02,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-08-22 03:47:02,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:02,929 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 03:47:02,930 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1482034243] [2020-08-22 03:47:02,930 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 03:47:02,931 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-22 03:47:02,931 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073326791] [2020-08-22 03:47:02,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-22 03:47:02,932 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:47:02,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-22 03:47:02,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-08-22 03:47:02,933 INFO L87 Difference]: Start difference. First operand 700 states and 810 transitions. Second operand 16 states. [2020-08-22 03:47:03,549 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 03:47:03,878 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-22 03:47:04,128 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 03:47:04,373 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-22 03:47:05,000 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 03:47:05,281 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 03:47:06,142 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 03:47:06,807 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 03:47:07,279 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 03:47:07,736 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 03:47:08,008 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 03:47:08,333 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 03:47:08,879 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 03:47:09,259 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 03:47:09,630 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 03:47:10,254 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 03:47:10,519 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 03:47:11,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:47:11,156 INFO L93 Difference]: Finished difference Result 1513 states and 1807 transitions. [2020-08-22 03:47:11,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-08-22 03:47:11,157 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 172 [2020-08-22 03:47:11,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:47:11,163 INFO L225 Difference]: With dead ends: 1513 [2020-08-22 03:47:11,164 INFO L226 Difference]: Without dead ends: 907 [2020-08-22 03:47:11,167 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 618 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=568, Invalid=2084, Unknown=0, NotChecked=0, Total=2652 [2020-08-22 03:47:11,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2020-08-22 03:47:11,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 828. [2020-08-22 03:47:11,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 828 states. [2020-08-22 03:47:11,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 968 transitions. [2020-08-22 03:47:11,305 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 968 transitions. Word has length 172 [2020-08-22 03:47:11,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:47:11,308 INFO L479 AbstractCegarLoop]: Abstraction has 828 states and 968 transitions. [2020-08-22 03:47:11,308 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-22 03:47:11,308 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 968 transitions. [2020-08-22 03:47:11,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2020-08-22 03:47:11,325 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:47:11,326 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 03:47:11,326 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-22 03:47:11,326 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:47:11,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:47:11,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1791991912, now seen corresponding path program 1 times [2020-08-22 03:47:11,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:47:11,327 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1655939509] [2020-08-22 03:47:11,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:47:11,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:11,690 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 03:47:11,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:47:11,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:11,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 03:47:11,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:11,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 03:47:11,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:11,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 03:47:11,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:11,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 03:47:11,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:11,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 03:47:11,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:11,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 03:47:11,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:11,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 03:47:11,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:11,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:47:11,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:11,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:47:11,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:11,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 03:47:11,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:11,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:47:11,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:11,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:47:11,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:11,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:47:11,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:11,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 03:47:11,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:11,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:47:11,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:11,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:47:11,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:11,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 03:47:11,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:11,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-22 03:47:11,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:11,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:47:11,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:11,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-08-22 03:47:11,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:11,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:47:11,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:11,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:47:11,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:11,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 03:47:11,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:11,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 03:47:11,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:11,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:47:11,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:11,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:47:11,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:11,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 03:47:11,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:11,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:47:11,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:11,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 03:47:11,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:12,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:47:12,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:12,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-08-22 03:47:12,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:12,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:47:12,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:12,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:47:12,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:12,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 03:47:12,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:12,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 03:47:12,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:12,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:47:12,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:12,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:47:12,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:12,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 03:47:12,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:12,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-22 03:47:12,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:12,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:47:12,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:12,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2020-08-22 03:47:12,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:12,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:47:12,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:12,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2020-08-22 03:47:12,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:12,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:47:12,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:12,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:47:12,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:12,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:47:12,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:12,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 03:47:12,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:12,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:47:12,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:12,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:47:12,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:12,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 03:47:12,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:12,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2020-08-22 03:47:12,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:12,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-08-22 03:47:12,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:12,242 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 03:47:12,243 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1655939509] [2020-08-22 03:47:12,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 03:47:12,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-08-22 03:47:12,243 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554734160] [2020-08-22 03:47:12,244 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-08-22 03:47:12,244 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:47:12,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-08-22 03:47:12,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2020-08-22 03:47:12,247 INFO L87 Difference]: Start difference. First operand 828 states and 968 transitions. Second operand 15 states. [2020-08-22 03:47:13,878 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 03:47:14,163 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 03:47:14,396 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 03:47:14,640 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 03:47:15,886 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 03:47:16,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:47:16,988 INFO L93 Difference]: Finished difference Result 2180 states and 2653 transitions. [2020-08-22 03:47:16,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-08-22 03:47:16,993 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 303 [2020-08-22 03:47:16,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:47:17,001 INFO L225 Difference]: With dead ends: 2180 [2020-08-22 03:47:17,002 INFO L226 Difference]: Without dead ends: 1293 [2020-08-22 03:47:17,005 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 107 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=230, Invalid=762, Unknown=0, NotChecked=0, Total=992 [2020-08-22 03:47:17,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1293 states. [2020-08-22 03:47:17,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1293 to 1090. [2020-08-22 03:47:17,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1090 states. [2020-08-22 03:47:17,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1090 states to 1090 states and 1305 transitions. [2020-08-22 03:47:17,174 INFO L78 Accepts]: Start accepts. Automaton has 1090 states and 1305 transitions. Word has length 303 [2020-08-22 03:47:17,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:47:17,175 INFO L479 AbstractCegarLoop]: Abstraction has 1090 states and 1305 transitions. [2020-08-22 03:47:17,175 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-08-22 03:47:17,175 INFO L276 IsEmpty]: Start isEmpty. Operand 1090 states and 1305 transitions. [2020-08-22 03:47:17,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2020-08-22 03:47:17,182 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:47:17,183 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 03:47:17,183 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-22 03:47:17,183 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:47:17,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:47:17,184 INFO L82 PathProgramCache]: Analyzing trace with hash -943069261, now seen corresponding path program 1 times [2020-08-22 03:47:17,184 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:47:17,184 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1600036271] [2020-08-22 03:47:17,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:47:17,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,502 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 03:47:17,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:47:17,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 03:47:17,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 03:47:17,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 03:47:17,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 03:47:17,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 03:47:17,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 03:47:17,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 03:47:17,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:47:17,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:47:17,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 03:47:17,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:47:17,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:47:17,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:47:17,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 03:47:17,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:47:17,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:47:17,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 03:47:17,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-22 03:47:17,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:47:17,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-08-22 03:47:17,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:47:17,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:47:17,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 03:47:17,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 03:47:17,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:47:17,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:47:17,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 03:47:17,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:47:17,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 03:47:17,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:47:17,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-22 03:47:17,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-08-22 03:47:17,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:47:17,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:47:17,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 03:47:17,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 03:47:17,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:47:17,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:47:17,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 03:47:17,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-22 03:47:17,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:47:17,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2020-08-22 03:47:17,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:47:17,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2020-08-22 03:47:17,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:47:17,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:47:17,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:47:17,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 03:47:17,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:47:17,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:47:17,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 03:47:17,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-08-22 03:47:17,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2020-08-22 03:47:17,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:17,953 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 03:47:17,953 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1600036271] [2020-08-22 03:47:17,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 03:47:17,954 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-22 03:47:17,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159234408] [2020-08-22 03:47:17,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-22 03:47:17,956 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:47:17,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-22 03:47:17,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2020-08-22 03:47:17,957 INFO L87 Difference]: Start difference. First operand 1090 states and 1305 transitions. Second operand 16 states. [2020-08-22 03:47:18,622 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 03:47:18,966 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 03:47:19,235 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 03:47:19,470 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 03:47:20,087 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 03:47:20,949 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 03:47:21,226 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 03:47:21,687 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 03:47:22,259 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 03:47:23,069 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 03:47:23,317 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 03:47:23,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:47:23,937 INFO L93 Difference]: Finished difference Result 2070 states and 2513 transitions. [2020-08-22 03:47:23,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-08-22 03:47:23,937 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 309 [2020-08-22 03:47:23,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:47:23,945 INFO L225 Difference]: With dead ends: 2070 [2020-08-22 03:47:23,945 INFO L226 Difference]: Without dead ends: 1093 [2020-08-22 03:47:23,949 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=297, Invalid=1185, Unknown=0, NotChecked=0, Total=1482 [2020-08-22 03:47:23,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1093 states. [2020-08-22 03:47:24,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1093 to 1050. [2020-08-22 03:47:24,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1050 states. [2020-08-22 03:47:24,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1239 transitions. [2020-08-22 03:47:24,165 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1239 transitions. Word has length 309 [2020-08-22 03:47:24,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:47:24,166 INFO L479 AbstractCegarLoop]: Abstraction has 1050 states and 1239 transitions. [2020-08-22 03:47:24,166 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-22 03:47:24,166 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1239 transitions. [2020-08-22 03:47:24,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2020-08-22 03:47:24,174 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:47:24,174 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 03:47:24,175 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-22 03:47:24,175 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:47:24,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:47:24,176 INFO L82 PathProgramCache]: Analyzing trace with hash -828307193, now seen corresponding path program 1 times [2020-08-22 03:47:24,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:47:24,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1236989656] [2020-08-22 03:47:24,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:47:24,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,481 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 03:47:24,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:47:24,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 03:47:24,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 03:47:24,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 03:47:24,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 03:47:24,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-22 03:47:24,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 03:47:24,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 03:47:24,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:47:24,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:47:24,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 03:47:24,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:47:24,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:47:24,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:47:24,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 03:47:24,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:47:24,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:47:24,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 03:47:24,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-22 03:47:24,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:47:24,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-08-22 03:47:24,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:47:24,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:47:24,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 03:47:24,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 03:47:24,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:47:24,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:47:24,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 03:47:24,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:47:24,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 03:47:24,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:47:24,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-22 03:47:24,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-08-22 03:47:24,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:47:24,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:47:24,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 03:47:24,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 03:47:24,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:47:24,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:47:24,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 03:47:24,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-22 03:47:24,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:47:24,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2020-08-22 03:47:24,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-08-22 03:47:24,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:47:24,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2020-08-22 03:47:24,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:47:24,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 03:47:24,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:47:24,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 03:47:24,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:47:24,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 03:47:24,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 03:47:24,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2020-08-22 03:47:24,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2020-08-22 03:47:24,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:47:24,867 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 03:47:24,867 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1236989656] [2020-08-22 03:47:24,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 03:47:24,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-22 03:47:24,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185684861] [2020-08-22 03:47:24,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 03:47:24,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:47:24,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 03:47:24,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-08-22 03:47:24,871 INFO L87 Difference]: Start difference. First operand 1050 states and 1239 transitions. Second operand 11 states. [2020-08-22 03:47:26,672 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 03:47:26,900 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 03:47:27,138 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 03:47:27,368 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 190