/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=NARROWEST --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_product51.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 21:17:41,188 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 21:17:41,192 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 21:17:41,230 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 21:17:41,231 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 21:17:41,240 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 21:17:41,243 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 21:17:41,246 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 21:17:41,248 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 21:17:41,251 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 21:17:41,252 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 21:17:41,253 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 21:17:41,253 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 21:17:41,256 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 21:17:41,258 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 21:17:41,259 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 21:17:41,261 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 21:17:41,261 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 21:17:41,263 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 21:17:41,271 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 21:17:41,273 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 21:17:41,274 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 21:17:41,275 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 21:17:41,275 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 21:17:41,288 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 21:17:41,288 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 21:17:41,288 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 21:17:41,289 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 21:17:41,289 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 21:17:41,290 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 21:17:41,290 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 21:17:41,292 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 21:17:41,293 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 21:17:41,294 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 21:17:41,295 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 21:17:41,295 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 21:17:41,296 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 21:17:41,296 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 21:17:41,296 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 21:17:41,297 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 21:17:41,298 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 21:17:41,299 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 [2020-08-21 21:17:41,337 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 21:17:41,338 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 21:17:41,340 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 21:17:41,340 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 21:17:41,340 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 21:17:41,340 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 21:17:41,341 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 21:17:41,341 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 21:17:41,341 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 21:17:41,341 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 21:17:41,342 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 21:17:41,342 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 21:17:41,343 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 21:17:41,343 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 21:17:41,343 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 21:17:41,343 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 21:17:41,344 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 21:17:41,344 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 21:17:41,344 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 21:17:41,344 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 21:17:41,344 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 21:17:41,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 21:17:41,345 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 21:17:41,345 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 21:17:41,345 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 21:17:41,345 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 21:17:41,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 21:17:41,346 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 21:17:41,346 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 21:17:41,346 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=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; [2020-08-21 21:17:41,616 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 21:17:41,626 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 21:17:41,629 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 21:17:41,631 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 21:17:41,632 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 21:17:41,632 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product51.cil.c [2020-08-21 21:17:41,701 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e8e6c96a8/0bdadf92b6ec48c592d8a4e077f6bf5b/FLAG5e3128df7 [2020-08-21 21:17:42,265 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 21:17:42,266 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product51.cil.c [2020-08-21 21:17:42,278 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e8e6c96a8/0bdadf92b6ec48c592d8a4e077f6bf5b/FLAG5e3128df7 [2020-08-21 21:17:42,675 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e8e6c96a8/0bdadf92b6ec48c592d8a4e077f6bf5b [2020-08-21 21:17:42,684 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 21:17:42,685 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 21:17:42,686 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 21:17:42,686 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 21:17:42,690 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 21:17:42,691 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 09:17:42" (1/1) ... [2020-08-21 21:17:42,694 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35e0de70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:17:42, skipping insertion in model container [2020-08-21 21:17:42,694 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 09:17:42" (1/1) ... [2020-08-21 21:17:42,702 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 21:17:42,750 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 21:17:43,219 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 21:17:43,231 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 21:17:43,334 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 21:17:43,371 INFO L208 MainTranslator]: Completed translation [2020-08-21 21:17:43,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:17:43 WrapperNode [2020-08-21 21:17:43,372 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 21:17:43,373 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 21:17:43,373 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 21:17:43,373 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 21:17:43,386 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:17:43" (1/1) ... [2020-08-21 21:17:43,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:17:43" (1/1) ... [2020-08-21 21:17:43,407 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:17:43" (1/1) ... [2020-08-21 21:17:43,407 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:17:43" (1/1) ... [2020-08-21 21:17:43,440 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:17:43" (1/1) ... [2020-08-21 21:17:43,451 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:17:43" (1/1) ... [2020-08-21 21:17:43,456 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:17:43" (1/1) ... [2020-08-21 21:17:43,464 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 21:17:43,465 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 21:17:43,465 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 21:17:43,465 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 21:17:43,466 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:17:43" (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 [2020-08-21 21:17:43,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 21:17:43,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 21:17:43,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-21 21:17:43,543 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-21 21:17:43,543 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-21 21:17:43,543 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-08-21 21:17:43,543 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-21 21:17:43,544 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-21 21:17:43,544 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-21 21:17:43,545 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-21 21:17:43,545 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-21 21:17:43,545 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-21 21:17:43,545 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-21 21:17:43,546 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-21 21:17:43,546 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-21 21:17:43,547 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-21 21:17:43,547 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-21 21:17:43,547 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-21 21:17:43,547 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-21 21:17:43,547 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 21:17:43,548 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-21 21:17:43,548 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-21 21:17:43,548 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-21 21:17:43,548 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-21 21:17:43,548 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-21 21:17:43,549 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-21 21:17:43,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-21 21:17:43,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-21 21:17:43,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-21 21:17:43,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-21 21:17:43,551 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-21 21:17:43,551 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-21 21:17:43,551 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-21 21:17:43,551 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-21 21:17:43,551 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-21 21:17:43,552 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-21 21:17:43,552 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-21 21:17:43,552 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-21 21:17:43,552 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-21 21:17:43,552 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-21 21:17:43,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-08-21 21:17:43,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-08-21 21:17:43,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-08-21 21:17:43,553 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 21:17:43,553 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 21:17:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-21 21:17:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-21 21:17:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-21 21:17:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-21 21:17:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-21 21:17:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-21 21:17:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-21 21:17:43,556 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-21 21:17:43,556 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-21 21:17:43,556 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-21 21:17:43,556 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-21 21:17:43,557 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-21 21:17:43,557 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-08-21 21:17:43,557 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-08-21 21:17:43,557 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-21 21:17:43,557 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-21 21:17:43,558 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-21 21:17:43,558 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-08-21 21:17:43,558 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-21 21:17:43,558 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-21 21:17:43,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-21 21:17:43,558 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-21 21:17:43,558 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-21 21:17:43,559 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-21 21:17:43,559 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-21 21:17:43,559 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-21 21:17:43,560 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-08-21 21:17:43,560 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-21 21:17:43,561 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-21 21:17:43,561 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-21 21:17:43,562 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-21 21:17:43,562 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-21 21:17:43,562 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 21:17:43,562 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-21 21:17:43,562 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-21 21:17:43,563 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-21 21:17:43,564 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-21 21:17:43,564 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-21 21:17:43,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-21 21:17:43,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-21 21:17:43,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 21:17:43,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-21 21:17:43,564 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-21 21:17:43,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 21:17:43,565 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-21 21:17:43,565 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-21 21:17:43,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 21:17:43,565 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-21 21:17:43,565 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-21 21:17:43,566 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-21 21:17:43,566 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-21 21:17:43,566 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-21 21:17:43,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 21:17:43,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-21 21:17:43,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 21:17:44,720 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 21:17:44,721 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-21 21:17:44,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 09:17:44 BoogieIcfgContainer [2020-08-21 21:17:44,726 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 21:17:44,728 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 21:17:44,728 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 21:17:44,731 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 21:17:44,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 09:17:42" (1/3) ... [2020-08-21 21:17:44,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13f20c20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 09:17:44, skipping insertion in model container [2020-08-21 21:17:44,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:17:43" (2/3) ... [2020-08-21 21:17:44,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13f20c20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 09:17:44, skipping insertion in model container [2020-08-21 21:17:44,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 09:17:44" (3/3) ... [2020-08-21 21:17:44,735 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product51.cil.c [2020-08-21 21:17:44,746 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 21:17:44,754 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 21:17:44,770 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 21:17:44,795 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 21:17:44,796 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 21:17:44,796 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 21:17:44,796 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 21:17:44,796 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 21:17:44,796 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 21:17:44,797 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 21:17:44,797 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 21:17:44,820 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states. [2020-08-21 21:17:44,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-08-21 21:17:44,831 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 21:17:44,832 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] [2020-08-21 21:17:44,833 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 21:17:44,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 21:17:44,839 INFO L82 PathProgramCache]: Analyzing trace with hash -878720759, now seen corresponding path program 1 times [2020-08-21 21:17:44,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 21:17:44,849 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [96728270] [2020-08-21 21:17:44,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 21:17:45,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:45,539 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 21:17:45,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:17:45,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:45,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 21:17:45,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:45,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 21:17:45,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:45,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 21:17:45,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:45,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 21:17:45,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:45,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 21:17:45,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:45,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 21:17:45,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:45,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:17:45,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:45,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-21 21:17:45,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:45,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-21 21:17:45,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:45,665 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-21 21:17:45,666 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [96728270] [2020-08-21 21:17:45,668 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 21:17:45,669 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 21:17:45,670 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328174068] [2020-08-21 21:17:45,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-21 21:17:45,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 21:17:45,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-21 21:17:45,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-21 21:17:45,695 INFO L87 Difference]: Start difference. First operand 187 states. Second operand 4 states. [2020-08-21 21:17:46,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 21:17:46,898 INFO L93 Difference]: Finished difference Result 318 states and 410 transitions. [2020-08-21 21:17:46,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-21 21:17:46,900 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-08-21 21:17:46,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 21:17:46,918 INFO L225 Difference]: With dead ends: 318 [2020-08-21 21:17:46,918 INFO L226 Difference]: Without dead ends: 175 [2020-08-21 21:17:46,925 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 [2020-08-21 21:17:46,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-08-21 21:17:47,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 144. [2020-08-21 21:17:47,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-08-21 21:17:47,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 170 transitions. [2020-08-21 21:17:47,039 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 170 transitions. Word has length 59 [2020-08-21 21:17:47,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 21:17:47,040 INFO L479 AbstractCegarLoop]: Abstraction has 144 states and 170 transitions. [2020-08-21 21:17:47,040 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-21 21:17:47,040 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 170 transitions. [2020-08-21 21:17:47,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-08-21 21:17:47,044 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 21:17:47,045 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 21:17:47,045 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 21:17:47,045 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 21:17:47,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 21:17:47,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1980606616, now seen corresponding path program 1 times [2020-08-21 21:17:47,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 21:17:47,046 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1873155935] [2020-08-21 21:17:47,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 21:17:47,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:47,425 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 21:17:47,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:17:47,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:47,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 21:17:47,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:47,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 21:17:47,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:47,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 21:17:47,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:47,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 21:17:47,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:47,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 21:17:47,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:47,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-21 21:17:47,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:47,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:17:47,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:47,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-21 21:17:47,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:47,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-21 21:17:47,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:47,495 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-21 21:17:47,496 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1873155935] [2020-08-21 21:17:47,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 21:17:47,497 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-21 21:17:47,497 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114737183] [2020-08-21 21:17:47,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 21:17:47,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 21:17:47,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 21:17:47,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 21:17:47,500 INFO L87 Difference]: Start difference. First operand 144 states and 170 transitions. Second operand 5 states. [2020-08-21 21:17:47,979 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 21:17:48,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 21:17:48,969 INFO L93 Difference]: Finished difference Result 257 states and 314 transitions. [2020-08-21 21:17:48,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 21:17:48,970 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2020-08-21 21:17:48,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 21:17:48,974 INFO L225 Difference]: With dead ends: 257 [2020-08-21 21:17:48,974 INFO L226 Difference]: Without dead ends: 165 [2020-08-21 21:17:48,976 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-21 21:17:48,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-08-21 21:17:49,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 135. [2020-08-21 21:17:49,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-08-21 21:17:49,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 158 transitions. [2020-08-21 21:17:49,015 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 158 transitions. Word has length 60 [2020-08-21 21:17:49,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 21:17:49,016 INFO L479 AbstractCegarLoop]: Abstraction has 135 states and 158 transitions. [2020-08-21 21:17:49,016 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 21:17:49,016 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 158 transitions. [2020-08-21 21:17:49,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-08-21 21:17:49,019 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 21:17:49,019 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] [2020-08-21 21:17:49,020 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 21:17:49,020 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 21:17:49,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 21:17:49,020 INFO L82 PathProgramCache]: Analyzing trace with hash 1839911150, now seen corresponding path program 1 times [2020-08-21 21:17:49,021 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 21:17:49,021 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1253672238] [2020-08-21 21:17:49,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 21:17:49,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:49,344 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 21:17:49,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:17:49,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:49,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 21:17:49,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:49,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 21:17:49,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:49,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 21:17:49,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:49,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 21:17:49,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:49,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 21:17:49,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:49,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 21:17:49,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:49,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:17:49,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:49,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-21 21:17:49,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:49,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-21 21:17:49,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:49,471 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-21 21:17:49,472 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1253672238] [2020-08-21 21:17:49,472 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 21:17:49,472 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-21 21:17:49,473 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863198172] [2020-08-21 21:17:49,473 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 21:17:49,474 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 21:17:49,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 21:17:49,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-21 21:17:49,474 INFO L87 Difference]: Start difference. First operand 135 states and 158 transitions. Second operand 9 states. [2020-08-21 21:17:49,868 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 21:17:50,208 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 21:17:50,463 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 21:17:50,709 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 21:17:51,649 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 21:17:53,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 21:17:53,410 INFO L93 Difference]: Finished difference Result 450 states and 558 transitions. [2020-08-21 21:17:53,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-21 21:17:53,411 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 64 [2020-08-21 21:17:53,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 21:17:53,418 INFO L225 Difference]: With dead ends: 450 [2020-08-21 21:17:53,418 INFO L226 Difference]: Without dead ends: 343 [2020-08-21 21:17:53,419 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-08-21 21:17:53,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-08-21 21:17:53,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 290. [2020-08-21 21:17:53,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-08-21 21:17:53,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 352 transitions. [2020-08-21 21:17:53,500 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 352 transitions. Word has length 64 [2020-08-21 21:17:53,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 21:17:53,500 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 352 transitions. [2020-08-21 21:17:53,501 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 21:17:53,501 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 352 transitions. [2020-08-21 21:17:53,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-08-21 21:17:53,504 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 21:17:53,504 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 21:17:53,505 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 21:17:53,505 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 21:17:53,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 21:17:53,505 INFO L82 PathProgramCache]: Analyzing trace with hash 423224560, now seen corresponding path program 1 times [2020-08-21 21:17:53,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 21:17:53,506 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [479970777] [2020-08-21 21:17:53,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 21:17:53,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:53,858 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 21:17:53,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:17:53,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:53,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 21:17:53,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:53,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 21:17:53,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:53,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 21:17:53,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:53,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 21:17:53,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:53,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 21:17:53,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:53,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 21:17:53,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:53,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-21 21:17:53,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:53,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:17:53,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:53,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-21 21:17:53,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:53,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-21 21:17:53,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:54,009 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-21 21:17:54,009 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [479970777] [2020-08-21 21:17:54,009 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 21:17:54,010 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-21 21:17:54,010 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13911451] [2020-08-21 21:17:54,011 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 21:17:54,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 21:17:54,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 21:17:54,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-21 21:17:54,012 INFO L87 Difference]: Start difference. First operand 290 states and 352 transitions. Second operand 9 states. [2020-08-21 21:17:54,461 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 21:17:55,116 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 21:17:55,952 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 21:17:56,284 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 21:17:56,589 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 21:17:56,837 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 21:17:57,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 21:17:57,584 INFO L93 Difference]: Finished difference Result 739 states and 964 transitions. [2020-08-21 21:17:57,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-21 21:17:57,585 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-08-21 21:17:57,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 21:17:57,590 INFO L225 Difference]: With dead ends: 739 [2020-08-21 21:17:57,590 INFO L226 Difference]: Without dead ends: 477 [2020-08-21 21:17:57,593 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-08-21 21:17:57,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2020-08-21 21:17:57,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 413. [2020-08-21 21:17:57,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2020-08-21 21:17:57,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 499 transitions. [2020-08-21 21:17:57,708 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 499 transitions. Word has length 70 [2020-08-21 21:17:57,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 21:17:57,709 INFO L479 AbstractCegarLoop]: Abstraction has 413 states and 499 transitions. [2020-08-21 21:17:57,709 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 21:17:57,709 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 499 transitions. [2020-08-21 21:17:57,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-08-21 21:17:57,713 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 21:17:57,713 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] [2020-08-21 21:17:57,713 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 21:17:57,714 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 21:17:57,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 21:17:57,714 INFO L82 PathProgramCache]: Analyzing trace with hash -742421187, now seen corresponding path program 1 times [2020-08-21 21:17:57,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 21:17:57,715 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [393367690] [2020-08-21 21:17:57,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 21:17:57,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:57,960 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 21:17:57,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:17:57,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:57,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 21:17:57,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:57,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 21:17:57,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:57,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 21:17:57,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:57,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 21:17:57,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:57,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 21:17:57,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:57,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 21:17:57,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:57,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:17:57,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:58,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-21 21:17:58,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:58,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 21:17:58,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:58,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 21:17:58,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:58,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 21:17:58,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:58,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 21:17:58,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:58,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-08-21 21:17:58,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:58,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-21 21:17:58,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:17:58,083 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-21 21:17:58,083 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [393367690] [2020-08-21 21:17:58,083 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 21:17:58,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-21 21:17:58,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663523293] [2020-08-21 21:17:58,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 21:17:58,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 21:17:58,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 21:17:58,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-21 21:17:58,085 INFO L87 Difference]: Start difference. First operand 413 states and 499 transitions. Second operand 9 states. [2020-08-21 21:17:59,173 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 21:17:59,458 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-21 21:17:59,709 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 21:17:59,959 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 21:18:00,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 21:18:00,697 INFO L93 Difference]: Finished difference Result 884 states and 1127 transitions. [2020-08-21 21:18:00,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 21:18:00,702 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 92 [2020-08-21 21:18:00,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 21:18:00,707 INFO L225 Difference]: With dead ends: 884 [2020-08-21 21:18:00,708 INFO L226 Difference]: Without dead ends: 499 [2020-08-21 21:18:00,710 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-08-21 21:18:00,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2020-08-21 21:18:00,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 426. [2020-08-21 21:18:00,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2020-08-21 21:18:00,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 513 transitions. [2020-08-21 21:18:00,830 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 513 transitions. Word has length 92 [2020-08-21 21:18:00,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 21:18:00,831 INFO L479 AbstractCegarLoop]: Abstraction has 426 states and 513 transitions. [2020-08-21 21:18:00,831 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 21:18:00,831 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 513 transitions. [2020-08-21 21:18:00,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-08-21 21:18:00,836 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 21:18:00,838 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] [2020-08-21 21:18:00,838 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 21:18:00,838 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 21:18:00,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 21:18:00,839 INFO L82 PathProgramCache]: Analyzing trace with hash -40821313, now seen corresponding path program 1 times [2020-08-21 21:18:00,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 21:18:00,839 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [581005373] [2020-08-21 21:18:00,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 21:18:00,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:01,142 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 21:18:01,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:18:01,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:01,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 21:18:01,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:01,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 21:18:01,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:01,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 21:18:01,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:01,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 21:18:01,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:01,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 21:18:01,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:01,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 21:18:01,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:01,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:18:01,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:01,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-21 21:18:01,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:01,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 21:18:01,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:01,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 21:18:01,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:01,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 21:18:01,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:01,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 21:18:01,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:01,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-08-21 21:18:01,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:01,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-21 21:18:01,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:01,298 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-21 21:18:01,299 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [581005373] [2020-08-21 21:18:01,299 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 21:18:01,299 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-21 21:18:01,299 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273848563] [2020-08-21 21:18:01,300 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-21 21:18:01,300 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 21:18:01,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-21 21:18:01,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-08-21 21:18:01,301 INFO L87 Difference]: Start difference. First operand 426 states and 513 transitions. Second operand 11 states. [2020-08-21 21:18:01,806 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 21:18:02,038 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 21:18:02,266 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 21:18:03,025 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 21:18:03,308 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 21:18:03,551 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 21:18:04,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 21:18:04,424 INFO L93 Difference]: Finished difference Result 911 states and 1176 transitions. [2020-08-21 21:18:04,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-21 21:18:04,425 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 92 [2020-08-21 21:18:04,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 21:18:04,429 INFO L225 Difference]: With dead ends: 911 [2020-08-21 21:18:04,430 INFO L226 Difference]: Without dead ends: 513 [2020-08-21 21:18:04,432 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-08-21 21:18:04,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2020-08-21 21:18:04,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 434. [2020-08-21 21:18:04,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2020-08-21 21:18:04,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 521 transitions. [2020-08-21 21:18:04,520 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 521 transitions. Word has length 92 [2020-08-21 21:18:04,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 21:18:04,520 INFO L479 AbstractCegarLoop]: Abstraction has 434 states and 521 transitions. [2020-08-21 21:18:04,521 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-21 21:18:04,521 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 521 transitions. [2020-08-21 21:18:04,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-08-21 21:18:04,523 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 21:18:04,523 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] [2020-08-21 21:18:04,523 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-21 21:18:04,523 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 21:18:04,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 21:18:04,524 INFO L82 PathProgramCache]: Analyzing trace with hash 1684659584, now seen corresponding path program 1 times [2020-08-21 21:18:04,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 21:18:04,525 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [462089803] [2020-08-21 21:18:04,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 21:18:04,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:04,820 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 21:18:04,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:18:04,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:04,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 21:18:04,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:04,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 21:18:04,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:04,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 21:18:04,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:04,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 21:18:04,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:04,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 21:18:04,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:04,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 21:18:04,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:04,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:18:04,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:04,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-21 21:18:04,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:04,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 21:18:04,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:04,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 21:18:04,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:04,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 21:18:04,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:04,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 21:18:04,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:04,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-08-21 21:18:04,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:04,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-21 21:18:04,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:04,952 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-21 21:18:04,953 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [462089803] [2020-08-21 21:18:04,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 21:18:04,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-21 21:18:04,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220106787] [2020-08-21 21:18:04,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 21:18:04,958 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 21:18:04,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 21:18:04,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-21 21:18:04,959 INFO L87 Difference]: Start difference. First operand 434 states and 521 transitions. Second operand 7 states. [2020-08-21 21:18:05,292 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 21:18:05,801 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 21:18:07,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 21:18:07,855 INFO L93 Difference]: Finished difference Result 1379 states and 1792 transitions. [2020-08-21 21:18:07,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-21 21:18:07,856 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 92 [2020-08-21 21:18:07,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 21:18:07,862 INFO L225 Difference]: With dead ends: 1379 [2020-08-21 21:18:07,863 INFO L226 Difference]: Without dead ends: 973 [2020-08-21 21:18:07,865 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 37 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-08-21 21:18:07,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 973 states. [2020-08-21 21:18:08,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 973 to 899. [2020-08-21 21:18:08,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 899 states. [2020-08-21 21:18:08,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 899 states to 899 states and 1095 transitions. [2020-08-21 21:18:08,107 INFO L78 Accepts]: Start accepts. Automaton has 899 states and 1095 transitions. Word has length 92 [2020-08-21 21:18:08,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 21:18:08,107 INFO L479 AbstractCegarLoop]: Abstraction has 899 states and 1095 transitions. [2020-08-21 21:18:08,107 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 21:18:08,108 INFO L276 IsEmpty]: Start isEmpty. Operand 899 states and 1095 transitions. [2020-08-21 21:18:08,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-08-21 21:18:08,112 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 21:18:08,112 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] [2020-08-21 21:18:08,113 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-21 21:18:08,113 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 21:18:08,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 21:18:08,114 INFO L82 PathProgramCache]: Analyzing trace with hash 1838654426, now seen corresponding path program 1 times [2020-08-21 21:18:08,114 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 21:18:08,114 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [721874004] [2020-08-21 21:18:08,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 21:18:08,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:08,557 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 21:18:08,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:18:08,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:08,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 21:18:08,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:08,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 21:18:08,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:08,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 21:18:08,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:08,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 21:18:08,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:08,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 21:18:08,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:08,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 21:18:08,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:08,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-21 21:18:08,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:08,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:18:08,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:08,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-21 21:18:08,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:08,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 21:18:08,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:08,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 21:18:08,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:08,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 21:18:08,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:08,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 21:18:08,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:08,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-21 21:18:08,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:08,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-21 21:18:08,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:08,755 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-21 21:18:08,755 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [721874004] [2020-08-21 21:18:08,755 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 21:18:08,756 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-21 21:18:08,756 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409663564] [2020-08-21 21:18:08,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-21 21:18:08,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 21:18:08,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-21 21:18:08,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-08-21 21:18:08,758 INFO L87 Difference]: Start difference. First operand 899 states and 1095 transitions. Second operand 12 states. [2020-08-21 21:18:09,287 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 21:18:09,937 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 21:18:10,576 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 21:18:10,904 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 21:18:11,171 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 21:18:11,452 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 21:18:11,728 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 21:18:13,711 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 21:18:13,986 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 21:18:14,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 21:18:14,536 INFO L93 Difference]: Finished difference Result 2547 states and 3312 transitions. [2020-08-21 21:18:14,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-08-21 21:18:14,537 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 96 [2020-08-21 21:18:14,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 21:18:14,549 INFO L225 Difference]: With dead ends: 2547 [2020-08-21 21:18:14,549 INFO L226 Difference]: Without dead ends: 1864 [2020-08-21 21:18:14,552 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2020-08-21 21:18:14,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1864 states. [2020-08-21 21:18:14,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1864 to 1570. [2020-08-21 21:18:14,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1570 states. [2020-08-21 21:18:14,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 1900 transitions. [2020-08-21 21:18:14,825 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 1900 transitions. Word has length 96 [2020-08-21 21:18:14,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 21:18:14,828 INFO L479 AbstractCegarLoop]: Abstraction has 1570 states and 1900 transitions. [2020-08-21 21:18:14,828 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-21 21:18:14,828 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 1900 transitions. [2020-08-21 21:18:14,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-08-21 21:18:14,833 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 21:18:14,833 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] [2020-08-21 21:18:14,833 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-21 21:18:14,834 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 21:18:14,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 21:18:14,834 INFO L82 PathProgramCache]: Analyzing trace with hash -1624055928, now seen corresponding path program 1 times [2020-08-21 21:18:14,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 21:18:14,834 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [958283333] [2020-08-21 21:18:14,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 21:18:14,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:15,276 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 21:18:15,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:18:15,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:15,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 21:18:15,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:15,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 21:18:15,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:15,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 21:18:15,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:15,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 21:18:15,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:15,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 21:18:15,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:15,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 21:18:15,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:15,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-21 21:18:15,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:15,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:18:15,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:15,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:18:15,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:15,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 21:18:15,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:15,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 21:18:15,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:15,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 21:18:15,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:15,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 21:18:15,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:15,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 21:18:15,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:15,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-21 21:18:15,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:15,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 21:18:15,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:15,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-21 21:18:15,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:15,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:18:15,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:15,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-21 21:18:15,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:15,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-08-21 21:18:15,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:15,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 21:18:15,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:15,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 21:18:15,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:15,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 21:18:15,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:15,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 21:18:15,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:15,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-08-21 21:18:15,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:15,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-08-21 21:18:15,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:15,654 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 21 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-08-21 21:18:15,655 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [958283333] [2020-08-21 21:18:15,655 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 21:18:15,656 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-21 21:18:15,656 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435077704] [2020-08-21 21:18:15,657 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-21 21:18:15,657 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 21:18:15,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-21 21:18:15,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-08-21 21:18:15,658 INFO L87 Difference]: Start difference. First operand 1570 states and 1900 transitions. Second operand 16 states. [2020-08-21 21:18:16,508 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 21:18:16,832 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-21 21:18:17,090 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-21 21:18:17,339 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-21 21:18:17,994 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 21:18:18,366 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 21:18:18,753 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-21 21:18:19,036 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-21 21:18:20,022 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 21:18:20,564 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 21:18:20,871 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 21:18:21,194 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 21:18:21,743 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 21:18:22,137 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 21:18:22,479 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-21 21:18:23,072 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 21:18:23,383 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-21 21:18:23,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 21:18:23,970 INFO L93 Difference]: Finished difference Result 3381 states and 4222 transitions. [2020-08-21 21:18:23,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-08-21 21:18:23,971 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 157 [2020-08-21 21:18:23,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 21:18:23,984 INFO L225 Difference]: With dead ends: 3381 [2020-08-21 21:18:23,984 INFO L226 Difference]: Without dead ends: 2015 [2020-08-21 21:18:23,990 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 667 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=589, Invalid=2167, Unknown=0, NotChecked=0, Total=2756 [2020-08-21 21:18:23,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2015 states. [2020-08-21 21:18:24,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2015 to 1837. [2020-08-21 21:18:24,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1837 states. [2020-08-21 21:18:24,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1837 states to 1837 states and 2182 transitions. [2020-08-21 21:18:24,387 INFO L78 Accepts]: Start accepts. Automaton has 1837 states and 2182 transitions. Word has length 157 [2020-08-21 21:18:24,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 21:18:24,388 INFO L479 AbstractCegarLoop]: Abstraction has 1837 states and 2182 transitions. [2020-08-21 21:18:24,388 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-21 21:18:24,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1837 states and 2182 transitions. [2020-08-21 21:18:24,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2020-08-21 21:18:24,398 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 21:18:24,399 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 21:18:24,399 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-21 21:18:24,400 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 21:18:24,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 21:18:24,400 INFO L82 PathProgramCache]: Analyzing trace with hash 510843146, now seen corresponding path program 1 times [2020-08-21 21:18:24,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 21:18:24,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1800651355] [2020-08-21 21:18:24,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 21:18:24,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:24,695 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 21:18:24,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:18:24,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:24,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 21:18:24,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:24,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 21:18:24,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:24,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 21:18:24,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:24,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 21:18:24,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:24,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 21:18:24,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:24,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 21:18:24,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:24,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-21 21:18:24,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:24,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:18:24,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:24,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:18:24,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:24,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 21:18:24,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:24,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 21:18:24,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:24,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 21:18:24,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:24,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 21:18:24,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:24,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 21:18:24,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:24,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-21 21:18:24,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:24,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 21:18:24,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:24,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-21 21:18:24,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:24,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:18:24,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:24,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:18:24,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:24,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 21:18:24,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:24,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-21 21:18:24,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:24,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 21:18:24,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:24,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 21:18:24,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:24,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 21:18:24,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:24,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 21:18:24,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:24,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-21 21:18:24,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:25,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 21:18:25,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:25,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-08-21 21:18:25,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:25,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:18:25,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:25,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:18:25,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:25,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 21:18:25,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:25,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-21 21:18:25,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:25,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 21:18:25,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:25,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 21:18:25,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:25,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 21:18:25,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:25,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-21 21:18:25,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:25,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 21:18:25,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:25,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2020-08-21 21:18:25,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:25,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:18:25,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:25,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2020-08-21 21:18:25,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:25,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 21:18:25,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:25,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 21:18:25,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:25,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 21:18:25,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:25,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 21:18:25,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:25,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2020-08-21 21:18:25,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:25,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2020-08-21 21:18:25,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:25,198 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 76 proven. 31 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2020-08-21 21:18:25,198 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1800651355] [2020-08-21 21:18:25,199 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 21:18:25,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-08-21 21:18:25,199 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354011119] [2020-08-21 21:18:25,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-08-21 21:18:25,200 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 21:18:25,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-08-21 21:18:25,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2020-08-21 21:18:25,200 INFO L87 Difference]: Start difference. First operand 1837 states and 2182 transitions. Second operand 15 states. [2020-08-21 21:18:26,496 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 21:18:26,715 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 21:18:26,977 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 21:18:27,247 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 21:18:27,497 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 21:18:28,447 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 21:18:28,973 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-08-21 21:18:29,414 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-08-21 21:18:29,785 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 21:18:32,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 21:18:32,278 INFO L93 Difference]: Finished difference Result 5059 states and 6227 transitions. [2020-08-21 21:18:32,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-08-21 21:18:32,279 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 273 [2020-08-21 21:18:32,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 21:18:32,298 INFO L225 Difference]: With dead ends: 5059 [2020-08-21 21:18:32,298 INFO L226 Difference]: Without dead ends: 3055 [2020-08-21 21:18:32,306 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 105 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=317, Invalid=1243, Unknown=0, NotChecked=0, Total=1560 [2020-08-21 21:18:32,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3055 states. [2020-08-21 21:18:32,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3055 to 2617. [2020-08-21 21:18:32,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2617 states. [2020-08-21 21:18:32,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2617 states to 2617 states and 3143 transitions. [2020-08-21 21:18:32,860 INFO L78 Accepts]: Start accepts. Automaton has 2617 states and 3143 transitions. Word has length 273 [2020-08-21 21:18:32,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 21:18:32,860 INFO L479 AbstractCegarLoop]: Abstraction has 2617 states and 3143 transitions. [2020-08-21 21:18:32,861 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-08-21 21:18:32,861 INFO L276 IsEmpty]: Start isEmpty. Operand 2617 states and 3143 transitions. [2020-08-21 21:18:32,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2020-08-21 21:18:32,871 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 21:18:32,871 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 21:18:32,871 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-21 21:18:32,872 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 21:18:32,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 21:18:32,872 INFO L82 PathProgramCache]: Analyzing trace with hash 443497263, now seen corresponding path program 1 times [2020-08-21 21:18:32,872 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 21:18:32,872 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1328195006] [2020-08-21 21:18:32,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 21:18:32,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,189 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 21:18:33,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:18:33,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 21:18:33,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 21:18:33,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 21:18:33,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 21:18:33,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 21:18:33,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 21:18:33,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-21 21:18:33,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:18:33,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:18:33,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 21:18:33,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 21:18:33,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 21:18:33,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 21:18:33,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 21:18:33,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-21 21:18:33,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 21:18:33,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-21 21:18:33,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:18:33,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:18:33,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 21:18:33,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-21 21:18:33,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 21:18:33,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 21:18:33,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 21:18:33,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 21:18:33,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-21 21:18:33,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 21:18:33,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-21 21:18:33,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-08-21 21:18:33,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:18:33,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:18:33,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 21:18:33,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-21 21:18:33,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 21:18:33,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 21:18:33,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 21:18:33,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-21 21:18:33,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 21:18:33,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2020-08-21 21:18:33,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:18:33,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-08-21 21:18:33,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 21:18:33,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 21:18:33,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 21:18:33,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 21:18:33,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2020-08-21 21:18:33,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2020-08-21 21:18:33,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:33,527 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 85 proven. 36 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2020-08-21 21:18:33,527 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1328195006] [2020-08-21 21:18:33,527 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 21:18:33,527 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-21 21:18:33,527 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436045119] [2020-08-21 21:18:33,528 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-21 21:18:33,528 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 21:18:33,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-21 21:18:33,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2020-08-21 21:18:33,529 INFO L87 Difference]: Start difference. First operand 2617 states and 3143 transitions. Second operand 16 states. [2020-08-21 21:18:33,983 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 21:18:34,302 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-21 21:18:34,553 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 21:18:34,789 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 21:18:35,486 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 21:18:36,506 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 21:18:36,824 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 21:18:37,067 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 21:18:37,549 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 21:18:38,365 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 21:18:38,651 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 21:18:39,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 21:18:39,308 INFO L93 Difference]: Finished difference Result 5016 states and 6107 transitions. [2020-08-21 21:18:39,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-08-21 21:18:39,309 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 279 [2020-08-21 21:18:39,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 21:18:39,324 INFO L225 Difference]: With dead ends: 5016 [2020-08-21 21:18:39,324 INFO L226 Difference]: Without dead ends: 2625 [2020-08-21 21:18:39,332 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=297, Invalid=1185, Unknown=0, NotChecked=0, Total=1482 [2020-08-21 21:18:39,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2625 states. [2020-08-21 21:18:39,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2625 to 2552. [2020-08-21 21:18:39,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2552 states. [2020-08-21 21:18:39,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2552 states to 2552 states and 3036 transitions. [2020-08-21 21:18:39,842 INFO L78 Accepts]: Start accepts. Automaton has 2552 states and 3036 transitions. Word has length 279 [2020-08-21 21:18:39,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 21:18:39,842 INFO L479 AbstractCegarLoop]: Abstraction has 2552 states and 3036 transitions. [2020-08-21 21:18:39,843 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-21 21:18:39,843 INFO L276 IsEmpty]: Start isEmpty. Operand 2552 states and 3036 transitions. [2020-08-21 21:18:39,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2020-08-21 21:18:39,854 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 21:18:39,854 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 21:18:39,854 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-21 21:18:39,854 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 21:18:39,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 21:18:39,855 INFO L82 PathProgramCache]: Analyzing trace with hash 891649996, now seen corresponding path program 1 times [2020-08-21 21:18:39,855 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 21:18:39,855 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [853848680] [2020-08-21 21:18:39,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 21:18:39,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:40,184 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 21:18:40,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:18:40,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:40,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 21:18:40,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:40,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 21:18:40,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:40,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 21:18:40,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:40,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 21:18:40,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:40,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 21:18:40,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:40,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 21:18:40,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:40,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-21 21:18:40,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:40,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:18:40,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:40,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:18:40,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:40,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 21:18:40,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:40,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 21:18:40,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:40,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 21:18:40,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:40,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 21:18:40,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:40,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 21:18:40,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:40,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-21 21:18:40,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:40,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 21:18:40,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:40,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-21 21:18:40,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:40,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:18:40,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:40,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:18:40,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:40,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 21:18:40,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:40,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-21 21:18:40,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:40,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 21:18:40,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:40,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 21:18:40,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:40,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 21:18:40,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:40,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 21:18:40,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:40,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-21 21:18:40,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:40,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 21:18:40,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:40,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-21 21:18:40,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:40,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-08-21 21:18:40,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:40,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:18:40,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:40,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:18:40,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:40,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 21:18:40,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:40,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-21 21:18:40,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:18:40,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 21:18:40,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat