/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product57.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 23:43:11,366 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 23:43:11,370 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 23:43:11,410 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 23:43:11,411 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 23:43:11,420 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 23:43:11,422 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 23:43:11,425 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 23:43:11,428 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 23:43:11,430 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 23:43:11,431 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 23:43:11,432 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 23:43:11,433 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 23:43:11,435 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 23:43:11,438 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 23:43:11,439 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 23:43:11,440 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 23:43:11,442 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 23:43:11,444 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 23:43:11,452 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 23:43:11,454 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 23:43:11,455 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 23:43:11,456 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 23:43:11,457 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 23:43:11,469 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 23:43:11,469 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 23:43:11,470 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 23:43:11,471 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 23:43:11,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 23:43:11,478 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 23:43:11,479 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 23:43:11,479 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 23:43:11,483 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 23:43:11,484 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 23:43:11,485 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 23:43:11,485 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 23:43:11,487 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 23:43:11,487 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 23:43:11,487 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 23:43:11,488 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 23:43:11,489 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 23:43:11,490 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 23:43:11,530 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 23:43:11,531 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 23:43:11,533 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 23:43:11,533 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 23:43:11,533 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 23:43:11,533 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 23:43:11,534 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 23:43:11,534 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 23:43:11,534 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 23:43:11,534 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 23:43:11,535 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 23:43:11,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 23:43:11,536 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 23:43:11,536 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 23:43:11,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 23:43:11,537 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 23:43:11,537 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 23:43:11,537 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 23:43:11,537 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 23:43:11,537 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 23:43:11,538 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 23:43:11,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 23:43:11,538 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 23:43:11,538 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 23:43:11,538 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 23:43:11,538 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 23:43:11,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 23:43:11,539 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 23:43:11,539 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 23:43:11,539 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-08-21 23:43:11,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 23:43:11,847 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 23:43:11,851 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 23:43:11,852 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 23:43:11,853 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 23:43:11,853 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product57.cil.c [2020-08-21 23:43:11,929 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/85897d7b0/b2278b97ba914a4589d93fa47c301734/FLAG4a0707816 [2020-08-21 23:43:12,509 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 23:43:12,510 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product57.cil.c [2020-08-21 23:43:12,523 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/85897d7b0/b2278b97ba914a4589d93fa47c301734/FLAG4a0707816 [2020-08-21 23:43:12,786 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/85897d7b0/b2278b97ba914a4589d93fa47c301734 [2020-08-21 23:43:12,794 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 23:43:12,796 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 23:43:12,797 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 23:43:12,797 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 23:43:12,801 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 23:43:12,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 11:43:12" (1/1) ... [2020-08-21 23:43:12,805 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@db8139c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:43:12, skipping insertion in model container [2020-08-21 23:43:12,806 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 11:43:12" (1/1) ... [2020-08-21 23:43:12,814 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 23:43:12,873 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 23:43:13,285 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 23:43:13,297 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 23:43:13,385 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 23:43:13,426 INFO L208 MainTranslator]: Completed translation [2020-08-21 23:43:13,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:43:13 WrapperNode [2020-08-21 23:43:13,426 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 23:43:13,427 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 23:43:13,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 23:43:13,427 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 23:43:13,439 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:43:13" (1/1) ... [2020-08-21 23:43:13,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:43:13" (1/1) ... [2020-08-21 23:43:13,457 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:43:13" (1/1) ... [2020-08-21 23:43:13,458 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:43:13" (1/1) ... [2020-08-21 23:43:13,492 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:43:13" (1/1) ... [2020-08-21 23:43:13,503 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:43:13" (1/1) ... [2020-08-21 23:43:13,509 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:43:13" (1/1) ... [2020-08-21 23:43:13,517 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 23:43:13,518 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 23:43:13,518 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 23:43:13,518 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 23:43:13,519 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:43:13" (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 23:43:13,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 23:43:13,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 23:43:13,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-21 23:43:13,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-21 23:43:13,590 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-21 23:43:13,590 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-21 23:43:13,590 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-21 23:43:13,590 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-21 23:43:13,590 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-21 23:43:13,590 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-21 23:43:13,591 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-21 23:43:13,591 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-21 23:43:13,591 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 23:43:13,591 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-21 23:43:13,591 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-21 23:43:13,591 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-21 23:43:13,592 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-21 23:43:13,592 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-21 23:43:13,592 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-21 23:43:13,592 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-21 23:43:13,592 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-21 23:43:13,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-21 23:43:13,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-21 23:43:13,593 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-21 23:43:13,593 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-21 23:43:13,593 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-21 23:43:13,593 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-21 23:43:13,593 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-08-21 23:43:13,593 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-08-21 23:43:13,594 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-08-21 23:43:13,594 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-21 23:43:13,594 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-21 23:43:13,594 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-21 23:43:13,594 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-08-21 23:43:13,594 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-21 23:43:13,594 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-08-21 23:43:13,595 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-21 23:43:13,595 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-21 23:43:13,595 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-21 23:43:13,595 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-21 23:43:13,595 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-21 23:43:13,595 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-21 23:43:13,596 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-21 23:43:13,596 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 23:43:13,596 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 23:43:13,596 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-21 23:43:13,596 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-21 23:43:13,597 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-21 23:43:13,597 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-21 23:43:13,597 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-21 23:43:13,597 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-21 23:43:13,597 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-21 23:43:13,597 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-21 23:43:13,598 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-21 23:43:13,598 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-21 23:43:13,598 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-21 23:43:13,598 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-21 23:43:13,598 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-21 23:43:13,598 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-08-21 23:43:13,598 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-21 23:43:13,599 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-21 23:43:13,599 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 23:43:13,599 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-21 23:43:13,599 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-21 23:43:13,599 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-21 23:43:13,599 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-21 23:43:13,600 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-21 23:43:13,600 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-21 23:43:13,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-21 23:43:13,600 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-21 23:43:13,600 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-21 23:43:13,600 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-21 23:43:13,601 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-21 23:43:13,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-21 23:43:13,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-21 23:43:13,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 23:43:13,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-21 23:43:13,601 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-21 23:43:13,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 23:43:13,602 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-21 23:43:13,602 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-21 23:43:13,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 23:43:13,602 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-21 23:43:13,602 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-21 23:43:13,602 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-21 23:43:13,602 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-21 23:43:13,603 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-08-21 23:43:13,603 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-08-21 23:43:13,603 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-21 23:43:13,603 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-21 23:43:13,603 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-21 23:43:13,603 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-21 23:43:13,604 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-21 23:43:13,604 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-08-21 23:43:13,604 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-21 23:43:13,604 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-08-21 23:43:13,604 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-21 23:43:13,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 23:43:13,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-21 23:43:13,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 23:43:14,593 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 23:43:14,593 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-21 23:43:14,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 11:43:14 BoogieIcfgContainer [2020-08-21 23:43:14,598 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 23:43:14,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 23:43:14,600 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 23:43:14,603 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 23:43:14,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 11:43:12" (1/3) ... [2020-08-21 23:43:14,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@170dd658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 11:43:14, skipping insertion in model container [2020-08-21 23:43:14,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:43:13" (2/3) ... [2020-08-21 23:43:14,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@170dd658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 11:43:14, skipping insertion in model container [2020-08-21 23:43:14,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 11:43:14" (3/3) ... [2020-08-21 23:43:14,607 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product57.cil.c [2020-08-21 23:43:14,618 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 23:43:14,626 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 23:43:14,640 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 23:43:14,665 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 23:43:14,666 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 23:43:14,666 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 23:43:14,666 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 23:43:14,673 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 23:43:14,673 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 23:43:14,673 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 23:43:14,673 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 23:43:14,697 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states. [2020-08-21 23:43:14,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-08-21 23:43:14,707 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:43:14,708 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 23:43:14,708 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:43:14,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:43:14,715 INFO L82 PathProgramCache]: Analyzing trace with hash 479094946, now seen corresponding path program 1 times [2020-08-21 23:43:14,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:43:14,724 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1379363156] [2020-08-21 23:43:14,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:43:14,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:15,362 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 23:43:15,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:43:15,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:15,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:43:15,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:15,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 23:43:15,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:15,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:43:15,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:15,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 23:43:15,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:15,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 23:43:15,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:15,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 23:43:15,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:15,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:43:15,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:15,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-21 23:43:15,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:15,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-21 23:43:15,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:15,479 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 23:43:15,480 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1379363156] [2020-08-21 23:43:15,482 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:43:15,483 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 23:43:15,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006661055] [2020-08-21 23:43:15,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-21 23:43:15,490 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:43:15,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-21 23:43:15,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-21 23:43:15,508 INFO L87 Difference]: Start difference. First operand 196 states. Second operand 4 states. [2020-08-21 23:43:16,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:43:16,677 INFO L93 Difference]: Finished difference Result 335 states and 423 transitions. [2020-08-21 23:43:16,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-21 23:43:16,679 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-08-21 23:43:16,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:43:16,694 INFO L225 Difference]: With dead ends: 335 [2020-08-21 23:43:16,694 INFO L226 Difference]: Without dead ends: 183 [2020-08-21 23:43:16,699 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 23:43:16,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2020-08-21 23:43:16,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 153. [2020-08-21 23:43:16,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-08-21 23:43:16,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 178 transitions. [2020-08-21 23:43:16,791 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 178 transitions. Word has length 59 [2020-08-21 23:43:16,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:43:16,792 INFO L479 AbstractCegarLoop]: Abstraction has 153 states and 178 transitions. [2020-08-21 23:43:16,792 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-21 23:43:16,792 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 178 transitions. [2020-08-21 23:43:16,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-08-21 23:43:16,796 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:43:16,797 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 23:43:16,797 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 23:43:16,797 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:43:16,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:43:16,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1126861649, now seen corresponding path program 1 times [2020-08-21 23:43:16,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:43:16,798 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [885245232] [2020-08-21 23:43:16,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:43:16,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:17,244 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 23:43:17,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:43:17,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:17,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:43:17,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:17,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 23:43:17,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:17,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:43:17,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:17,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 23:43:17,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:17,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 23:43:17,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:17,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 23:43:17,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:17,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:43:17,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:17,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-21 23:43:17,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:17,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-21 23:43:17,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:17,354 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 23:43:17,355 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [885245232] [2020-08-21 23:43:17,355 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:43:17,356 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-21 23:43:17,356 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830391794] [2020-08-21 23:43:17,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 23:43:17,358 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:43:17,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 23:43:17,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-21 23:43:17,359 INFO L87 Difference]: Start difference. First operand 153 states and 178 transitions. Second operand 9 states. [2020-08-21 23:43:17,764 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 23:43:18,120 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:43:18,359 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:43:18,609 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:43:20,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:43:20,066 INFO L93 Difference]: Finished difference Result 308 states and 378 transitions. [2020-08-21 23:43:20,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 23:43:20,071 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 64 [2020-08-21 23:43:20,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:43:20,075 INFO L225 Difference]: With dead ends: 308 [2020-08-21 23:43:20,075 INFO L226 Difference]: Without dead ends: 183 [2020-08-21 23:43:20,077 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-08-21 23:43:20,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2020-08-21 23:43:20,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 153. [2020-08-21 23:43:20,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-08-21 23:43:20,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 177 transitions. [2020-08-21 23:43:20,127 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 177 transitions. Word has length 64 [2020-08-21 23:43:20,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:43:20,127 INFO L479 AbstractCegarLoop]: Abstraction has 153 states and 177 transitions. [2020-08-21 23:43:20,127 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 23:43:20,127 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 177 transitions. [2020-08-21 23:43:20,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-08-21 23:43:20,131 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:43:20,131 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:43:20,131 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 23:43:20,131 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:43:20,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:43:20,132 INFO L82 PathProgramCache]: Analyzing trace with hash -1745445590, now seen corresponding path program 1 times [2020-08-21 23:43:20,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:43:20,132 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1644733657] [2020-08-21 23:43:20,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:43:20,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:20,430 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 23:43:20,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:43:20,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:20,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:43:20,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:20,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 23:43:20,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:20,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:43:20,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:20,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 23:43:20,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:20,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 23:43:20,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:20,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 23:43:20,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:20,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:43:20,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:20,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-21 23:43:20,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:20,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:43:20,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:20,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:43:20,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:20,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-21 23:43:20,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:20,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-21 23:43:20,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:20,561 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 23:43:20,562 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1644733657] [2020-08-21 23:43:20,562 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:43:20,562 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-21 23:43:20,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723001698] [2020-08-21 23:43:20,563 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 23:43:20,563 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:43:20,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 23:43:20,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-21 23:43:20,564 INFO L87 Difference]: Start difference. First operand 153 states and 177 transitions. Second operand 7 states. [2020-08-21 23:43:20,959 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 23:43:22,486 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 23:43:23,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:43:23,290 INFO L93 Difference]: Finished difference Result 445 states and 574 transitions. [2020-08-21 23:43:23,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-21 23:43:23,291 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 77 [2020-08-21 23:43:23,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:43:23,300 INFO L225 Difference]: With dead ends: 445 [2020-08-21 23:43:23,300 INFO L226 Difference]: Without dead ends: 320 [2020-08-21 23:43:23,304 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-08-21 23:43:23,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2020-08-21 23:43:23,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 259. [2020-08-21 23:43:23,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2020-08-21 23:43:23,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 309 transitions. [2020-08-21 23:43:23,409 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 309 transitions. Word has length 77 [2020-08-21 23:43:23,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:43:23,410 INFO L479 AbstractCegarLoop]: Abstraction has 259 states and 309 transitions. [2020-08-21 23:43:23,410 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 23:43:23,410 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 309 transitions. [2020-08-21 23:43:23,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-08-21 23:43:23,412 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:43:23,412 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:43:23,412 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 23:43:23,413 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:43:23,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:43:23,413 INFO L82 PathProgramCache]: Analyzing trace with hash -1775922839, now seen corresponding path program 1 times [2020-08-21 23:43:23,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:43:23,414 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1938366430] [2020-08-21 23:43:23,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:43:23,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:23,681 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 23:43:23,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:43:23,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:23,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:43:23,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:23,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 23:43:23,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:23,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:43:23,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:23,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 23:43:23,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:23,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 23:43:23,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:23,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 23:43:23,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:23,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:43:23,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:23,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-21 23:43:23,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:23,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:43:23,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:23,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:43:23,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:23,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:43:23,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:23,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 23:43:23,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:23,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-08-21 23:43:23,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:23,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-21 23:43:23,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:23,873 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 23:43:23,873 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1938366430] [2020-08-21 23:43:23,873 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:43:23,874 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-21 23:43:23,874 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436664302] [2020-08-21 23:43:23,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 23:43:23,876 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:43:23,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 23:43:23,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-21 23:43:23,877 INFO L87 Difference]: Start difference. First operand 259 states and 309 transitions. Second operand 9 states. [2020-08-21 23:43:24,284 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 23:43:24,913 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:43:25,817 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 23:43:26,094 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 23:43:26,531 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:43:26,759 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:43:27,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:43:27,457 INFO L93 Difference]: Finished difference Result 540 states and 684 transitions. [2020-08-21 23:43:27,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-21 23:43:27,458 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 91 [2020-08-21 23:43:27,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:43:27,462 INFO L225 Difference]: With dead ends: 540 [2020-08-21 23:43:27,463 INFO L226 Difference]: Without dead ends: 309 [2020-08-21 23:43:27,464 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-08-21 23:43:27,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-08-21 23:43:27,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 258. [2020-08-21 23:43:27,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-08-21 23:43:27,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 306 transitions. [2020-08-21 23:43:27,514 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 306 transitions. Word has length 91 [2020-08-21 23:43:27,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:43:27,514 INFO L479 AbstractCegarLoop]: Abstraction has 258 states and 306 transitions. [2020-08-21 23:43:27,514 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 23:43:27,515 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 306 transitions. [2020-08-21 23:43:27,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-08-21 23:43:27,517 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:43:27,517 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:43:27,517 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 23:43:27,518 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:43:27,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:43:27,518 INFO L82 PathProgramCache]: Analyzing trace with hash 534241489, now seen corresponding path program 1 times [2020-08-21 23:43:27,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:43:27,518 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [407161966] [2020-08-21 23:43:27,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:43:27,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:27,823 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 23:43:27,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:43:27,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:27,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:43:27,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:27,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 23:43:27,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:27,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:43:27,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:27,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 23:43:27,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:27,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 23:43:27,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:27,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-21 23:43:27,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:27,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:43:27,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:27,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-21 23:43:27,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:27,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:43:27,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:27,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:43:27,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:27,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:43:27,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:27,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 23:43:27,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:27,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:43:27,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:27,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:43:27,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:27,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:43:27,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:27,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-08-21 23:43:27,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:27,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-08-21 23:43:27,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:27,995 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 23:43:27,995 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [407161966] [2020-08-21 23:43:27,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:43:27,996 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-21 23:43:27,996 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145829290] [2020-08-21 23:43:27,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 23:43:27,997 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:43:27,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 23:43:27,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-08-21 23:43:27,998 INFO L87 Difference]: Start difference. First operand 258 states and 306 transitions. Second operand 10 states. [2020-08-21 23:43:28,647 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 23:43:29,256 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:43:29,499 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-21 23:43:29,758 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 23:43:29,987 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 23:43:30,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:43:30,882 INFO L93 Difference]: Finished difference Result 502 states and 624 transitions. [2020-08-21 23:43:30,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-21 23:43:30,887 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 103 [2020-08-21 23:43:30,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:43:30,893 INFO L225 Difference]: With dead ends: 502 [2020-08-21 23:43:30,893 INFO L226 Difference]: Without dead ends: 272 [2020-08-21 23:43:30,895 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2020-08-21 23:43:30,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2020-08-21 23:43:30,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 233. [2020-08-21 23:43:30,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-08-21 23:43:30,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 264 transitions. [2020-08-21 23:43:30,955 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 264 transitions. Word has length 103 [2020-08-21 23:43:30,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:43:30,955 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 264 transitions. [2020-08-21 23:43:30,955 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 23:43:30,956 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 264 transitions. [2020-08-21 23:43:30,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-08-21 23:43:30,958 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:43:30,959 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:43:30,959 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 23:43:30,959 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:43:30,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:43:30,960 INFO L82 PathProgramCache]: Analyzing trace with hash 697480839, now seen corresponding path program 1 times [2020-08-21 23:43:30,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:43:30,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1077899980] [2020-08-21 23:43:30,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:43:30,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:31,272 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 23:43:31,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:43:31,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:31,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:43:31,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:31,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 23:43:31,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:31,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:43:31,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:31,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 23:43:31,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:31,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 23:43:31,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:31,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 23:43:31,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:31,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:43:31,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:31,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-21 23:43:31,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:31,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:43:31,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:31,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:43:31,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:31,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:43:31,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:31,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 23:43:31,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:31,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:43:31,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:31,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:43:31,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:31,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:43:31,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:31,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-21 23:43:31,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:31,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-21 23:43:31,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:31,461 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 23:43:31,462 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1077899980] [2020-08-21 23:43:31,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:43:31,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-21 23:43:31,463 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150500619] [2020-08-21 23:43:31,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-21 23:43:31,463 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:43:31,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-21 23:43:31,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-08-21 23:43:31,464 INFO L87 Difference]: Start difference. First operand 233 states and 264 transitions. Second operand 11 states. [2020-08-21 23:43:32,072 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:43:32,334 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 23:43:32,573 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 23:43:33,242 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 23:43:33,520 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 23:43:33,768 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 23:43:34,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:43:34,671 INFO L93 Difference]: Finished difference Result 482 states and 584 transitions. [2020-08-21 23:43:34,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-21 23:43:34,671 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 107 [2020-08-21 23:43:34,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:43:34,676 INFO L225 Difference]: With dead ends: 482 [2020-08-21 23:43:34,676 INFO L226 Difference]: Without dead ends: 277 [2020-08-21 23:43:34,678 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-08-21 23:43:34,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-08-21 23:43:34,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 237. [2020-08-21 23:43:34,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-08-21 23:43:34,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 268 transitions. [2020-08-21 23:43:34,743 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 268 transitions. Word has length 107 [2020-08-21 23:43:34,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:43:34,743 INFO L479 AbstractCegarLoop]: Abstraction has 237 states and 268 transitions. [2020-08-21 23:43:34,743 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-21 23:43:34,744 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 268 transitions. [2020-08-21 23:43:34,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-08-21 23:43:34,747 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:43:34,747 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:43:34,748 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-21 23:43:34,748 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:43:34,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:43:34,749 INFO L82 PathProgramCache]: Analyzing trace with hash 456940710, now seen corresponding path program 1 times [2020-08-21 23:43:34,749 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:43:34,750 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1526729775] [2020-08-21 23:43:34,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:43:34,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:35,025 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 23:43:35,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:43:35,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:35,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:43:35,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:35,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 23:43:35,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:35,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:43:35,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:35,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 23:43:35,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:35,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 23:43:35,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:35,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 23:43:35,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:35,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:43:35,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:35,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-21 23:43:35,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:35,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:43:35,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:35,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:43:35,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:35,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:43:35,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:35,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 23:43:35,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:35,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:43:35,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:35,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:43:35,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:35,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:43:35,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:35,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-21 23:43:35,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:35,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-08-21 23:43:35,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:35,252 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-21 23:43:35,256 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1526729775] [2020-08-21 23:43:35,257 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:43:35,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-21 23:43:35,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82591383] [2020-08-21 23:43:35,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 23:43:35,258 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:43:35,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 23:43:35,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-21 23:43:35,259 INFO L87 Difference]: Start difference. First operand 237 states and 268 transitions. Second operand 7 states. [2020-08-21 23:43:35,577 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 23:43:36,096 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 23:43:37,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:43:37,777 INFO L93 Difference]: Finished difference Result 651 states and 808 transitions. [2020-08-21 23:43:37,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-21 23:43:37,778 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 107 [2020-08-21 23:43:37,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:43:37,782 INFO L225 Difference]: With dead ends: 651 [2020-08-21 23:43:37,782 INFO L226 Difference]: Without dead ends: 442 [2020-08-21 23:43:37,783 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 43 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-08-21 23:43:37,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2020-08-21 23:43:37,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 404. [2020-08-21 23:43:37,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 404 states. [2020-08-21 23:43:37,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 472 transitions. [2020-08-21 23:43:37,843 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 472 transitions. Word has length 107 [2020-08-21 23:43:37,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:43:37,843 INFO L479 AbstractCegarLoop]: Abstraction has 404 states and 472 transitions. [2020-08-21 23:43:37,844 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 23:43:37,844 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 472 transitions. [2020-08-21 23:43:37,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-08-21 23:43:37,846 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:43:37,846 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:43:37,846 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-21 23:43:37,846 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:43:37,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:43:37,847 INFO L82 PathProgramCache]: Analyzing trace with hash -1562894580, now seen corresponding path program 1 times [2020-08-21 23:43:37,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:43:37,847 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [532298889] [2020-08-21 23:43:37,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:43:37,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:38,155 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 23:43:38,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:43:38,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:38,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:43:38,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:38,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 23:43:38,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:38,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:43:38,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:38,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 23:43:38,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:38,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 23:43:38,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:38,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 23:43:38,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:38,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-21 23:43:38,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:38,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:43:38,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:38,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-21 23:43:38,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:38,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:43:38,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:38,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:43:38,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:38,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:43:38,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:38,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 23:43:38,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:38,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:43:38,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:38,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:43:38,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:38,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:43:38,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:38,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-08-21 23:43:38,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:38,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-21 23:43:38,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:38,330 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 23:43:38,330 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [532298889] [2020-08-21 23:43:38,330 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:43:38,331 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-21 23:43:38,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060747372] [2020-08-21 23:43:38,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-21 23:43:38,332 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:43:38,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-21 23:43:38,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-08-21 23:43:38,332 INFO L87 Difference]: Start difference. First operand 404 states and 472 transitions. Second operand 12 states. [2020-08-21 23:43:38,790 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 23:43:39,463 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 23:43:40,391 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:43:40,688 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:43:40,940 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 23:43:41,221 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:43:41,507 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:43:42,848 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 23:43:43,123 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 23:43:43,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:43:43,814 INFO L93 Difference]: Finished difference Result 1116 states and 1385 transitions. [2020-08-21 23:43:43,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-08-21 23:43:43,815 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 111 [2020-08-21 23:43:43,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:43:43,824 INFO L225 Difference]: With dead ends: 1116 [2020-08-21 23:43:43,824 INFO L226 Difference]: Without dead ends: 810 [2020-08-21 23:43:43,826 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2020-08-21 23:43:43,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2020-08-21 23:43:43,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 700. [2020-08-21 23:43:43,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 700 states. [2020-08-21 23:43:43,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 810 transitions. [2020-08-21 23:43:43,963 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 810 transitions. Word has length 111 [2020-08-21 23:43:43,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:43:43,963 INFO L479 AbstractCegarLoop]: Abstraction has 700 states and 810 transitions. [2020-08-21 23:43:43,963 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-21 23:43:43,964 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 810 transitions. [2020-08-21 23:43:43,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-08-21 23:43:43,966 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:43:43,967 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:43:43,967 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-21 23:43:43,967 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:43:43,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:43:43,968 INFO L82 PathProgramCache]: Analyzing trace with hash 903450751, now seen corresponding path program 1 times [2020-08-21 23:43:43,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:43:43,968 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1976299139] [2020-08-21 23:43:43,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:43:44,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:44,371 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 23:43:44,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:43:44,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:44,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:43:44,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:44,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 23:43:44,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:44,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:43:44,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:44,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 23:43:44,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:44,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 23:43:44,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:44,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 23:43:44,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:44,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-21 23:43:44,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:44,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:43:44,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:44,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:43:44,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:44,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 23:43:44,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:44,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:43:44,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:44,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:43:44,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:44,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:43:44,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:44,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 23:43:44,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:44,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:43:44,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:44,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:43:44,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:44,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:43:44,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:44,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-21 23:43:44,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:44,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:43:44,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:44,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-08-21 23:43:44,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:44,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:43:44,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:44,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-08-21 23:43:44,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:44,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-08-21 23:43:44,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:44,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:43:44,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:44,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:43:44,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:44,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 23:43:44,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:44,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:43:44,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:44,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-08-21 23:43:44,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:44,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-08-21 23:43:44,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:44,768 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 23:43:44,769 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1976299139] [2020-08-21 23:43:44,769 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 23:43:44,769 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-21 23:43:44,770 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066801857] [2020-08-21 23:43:44,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-21 23:43:44,771 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:43:44,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-21 23:43:44,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-08-21 23:43:44,771 INFO L87 Difference]: Start difference. First operand 700 states and 810 transitions. Second operand 16 states. [2020-08-21 23:43:45,527 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 23:43:46,014 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-08-21 23:43:46,292 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-21 23:43:46,532 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-21 23:43:47,128 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 23:43:47,398 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 23:43:48,164 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-21 23:43:48,820 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 23:43:49,260 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-21 23:43:49,695 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:43:49,953 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:43:50,243 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 23:43:50,794 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 23:43:51,193 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 23:43:51,594 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-21 23:43:52,254 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 23:43:52,543 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-21 23:43:53,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:43:53,205 INFO L93 Difference]: Finished difference Result 1513 states and 1807 transitions. [2020-08-21 23:43:53,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-08-21 23:43:53,206 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 172 [2020-08-21 23:43:53,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:43:53,217 INFO L225 Difference]: With dead ends: 1513 [2020-08-21 23:43:53,217 INFO L226 Difference]: Without dead ends: 907 [2020-08-21 23:43:53,222 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 618 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=568, Invalid=2084, Unknown=0, NotChecked=0, Total=2652 [2020-08-21 23:43:53,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2020-08-21 23:43:53,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 828. [2020-08-21 23:43:53,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 828 states. [2020-08-21 23:43:53,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 968 transitions. [2020-08-21 23:43:53,439 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 968 transitions. Word has length 172 [2020-08-21 23:43:53,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:43:53,443 INFO L479 AbstractCegarLoop]: Abstraction has 828 states and 968 transitions. [2020-08-21 23:43:53,443 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-21 23:43:53,443 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 968 transitions. [2020-08-21 23:43:53,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2020-08-21 23:43:53,456 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:43:53,457 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:43:53,457 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-21 23:43:53,457 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:43:53,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:43:53,458 INFO L82 PathProgramCache]: Analyzing trace with hash -1791991912, now seen corresponding path program 1 times [2020-08-21 23:43:53,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:43:53,459 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [149637612] [2020-08-21 23:43:53,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:43:53,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:53,863 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 23:43:53,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:43:53,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:53,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:43:53,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:53,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 23:43:53,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:53,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:43:53,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:53,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 23:43:53,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:53,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 23:43:53,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:53,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 23:43:53,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:53,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-21 23:43:53,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:53,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:43:53,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:53,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:43:53,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:53,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 23:43:53,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:53,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:43:53,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:53,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:43:53,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:53,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:43:53,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:53,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 23:43:53,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:53,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:43:53,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:53,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:43:53,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:53,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:43:53,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:53,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-21 23:43:53,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:54,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:43:54,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:54,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-08-21 23:43:54,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:54,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:43:54,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:54,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:43:54,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:54,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 23:43:54,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:54,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-21 23:43:54,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:54,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:43:54,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:54,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:43:54,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:54,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 23:43:54,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:54,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:43:54,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:54,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-21 23:43:54,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:54,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:43:54,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:54,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-08-21 23:43:54,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:54,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:43:54,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:54,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:43:54,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:54,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 23:43:54,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:54,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-21 23:43:54,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:54,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:43:54,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:54,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:43:54,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:54,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 23:43:54,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:54,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-21 23:43:54,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:54,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:43:54,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:54,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2020-08-21 23:43:54,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:54,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:43:54,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:54,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2020-08-21 23:43:54,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:54,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:43:54,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:54,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:43:54,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:54,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:43:54,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:54,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 23:43:54,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:54,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:43:54,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:54,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:43:54,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:54,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:43:54,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:54,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2020-08-21 23:43:54,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:54,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-08-21 23:43:54,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:54,366 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 78 proven. 29 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2020-08-21 23:43:54,367 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [149637612] [2020-08-21 23:43:54,368 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 23:43:54,368 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-08-21 23:43:54,368 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490740878] [2020-08-21 23:43:54,369 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-08-21 23:43:54,369 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:43:54,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-08-21 23:43:54,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2020-08-21 23:43:54,372 INFO L87 Difference]: Start difference. First operand 828 states and 968 transitions. Second operand 15 states. [2020-08-21 23:43:56,037 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 23:43:56,320 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 23:43:56,576 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 23:43:56,823 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 23:43:58,164 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 23:43:59,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:43:59,317 INFO L93 Difference]: Finished difference Result 2180 states and 2653 transitions. [2020-08-21 23:43:59,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-08-21 23:43:59,324 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 303 [2020-08-21 23:43:59,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:43:59,332 INFO L225 Difference]: With dead ends: 2180 [2020-08-21 23:43:59,333 INFO L226 Difference]: Without dead ends: 1293 [2020-08-21 23:43:59,336 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 107 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=230, Invalid=762, Unknown=0, NotChecked=0, Total=992 [2020-08-21 23:43:59,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1293 states. [2020-08-21 23:43:59,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1293 to 1090. [2020-08-21 23:43:59,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1090 states. [2020-08-21 23:43:59,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1090 states to 1090 states and 1305 transitions. [2020-08-21 23:43:59,534 INFO L78 Accepts]: Start accepts. Automaton has 1090 states and 1305 transitions. Word has length 303 [2020-08-21 23:43:59,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:43:59,534 INFO L479 AbstractCegarLoop]: Abstraction has 1090 states and 1305 transitions. [2020-08-21 23:43:59,535 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-08-21 23:43:59,535 INFO L276 IsEmpty]: Start isEmpty. Operand 1090 states and 1305 transitions. [2020-08-21 23:43:59,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2020-08-21 23:43:59,541 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:43:59,542 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:43:59,542 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-21 23:43:59,542 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:43:59,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:43:59,542 INFO L82 PathProgramCache]: Analyzing trace with hash -943069261, now seen corresponding path program 1 times [2020-08-21 23:43:59,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:43:59,543 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [82896682] [2020-08-21 23:43:59,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:43:59,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:59,873 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 23:43:59,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:43:59,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:59,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:43:59,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:59,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 23:43:59,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:59,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:43:59,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:59,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 23:43:59,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:59,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 23:43:59,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:59,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 23:43:59,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:59,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-21 23:43:59,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:59,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:43:59,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:59,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:43:59,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:59,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 23:43:59,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:43:59,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:44:00,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:00,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:44:00,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:00,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:44:00,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:00,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 23:44:00,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:00,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:44:00,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:00,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:44:00,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:00,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:44:00,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:00,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-21 23:44:00,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:00,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:44:00,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:00,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-08-21 23:44:00,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:00,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:44:00,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:00,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:44:00,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:00,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 23:44:00,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:00,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-21 23:44:00,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:00,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:44:00,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:00,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:44:00,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:00,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 23:44:00,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:00,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:44:00,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:00,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-21 23:44:00,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:00,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:44:00,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:00,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-21 23:44:00,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:00,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-08-21 23:44:00,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:00,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:44:00,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:00,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:44:00,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:00,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 23:44:00,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:00,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-21 23:44:00,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:00,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:44:00,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:00,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:44:00,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:00,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 23:44:00,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:00,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-21 23:44:00,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:00,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:44:00,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:00,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2020-08-21 23:44:00,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:00,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:44:00,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:00,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2020-08-21 23:44:00,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:00,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:44:00,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:00,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:44:00,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:00,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:44:00,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:00,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 23:44:00,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:00,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:44:00,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:00,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:44:00,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:00,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:44:00,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:00,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-08-21 23:44:00,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:00,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2020-08-21 23:44:00,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:00,272 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 85 proven. 38 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2020-08-21 23:44:00,273 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [82896682] [2020-08-21 23:44:00,273 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 23:44:00,273 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-21 23:44:00,273 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040899533] [2020-08-21 23:44:00,274 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-21 23:44:00,274 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:44:00,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-21 23:44:00,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2020-08-21 23:44:00,275 INFO L87 Difference]: Start difference. First operand 1090 states and 1305 transitions. Second operand 16 states. [2020-08-21 23:44:00,750 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 23:44:01,089 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-21 23:44:01,343 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 23:44:01,597 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 23:44:02,200 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:44:03,085 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:44:03,337 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:44:03,832 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-21 23:44:04,403 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:44:05,243 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:44:05,505 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-21 23:44:06,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:44:06,126 INFO L93 Difference]: Finished difference Result 2070 states and 2513 transitions. [2020-08-21 23:44:06,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-08-21 23:44:06,127 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 309 [2020-08-21 23:44:06,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:44:06,136 INFO L225 Difference]: With dead ends: 2070 [2020-08-21 23:44:06,137 INFO L226 Difference]: Without dead ends: 1093 [2020-08-21 23:44:06,141 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=297, Invalid=1185, Unknown=0, NotChecked=0, Total=1482 [2020-08-21 23:44:06,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1093 states. [2020-08-21 23:44:06,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1093 to 1050. [2020-08-21 23:44:06,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1050 states. [2020-08-21 23:44:06,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1239 transitions. [2020-08-21 23:44:06,342 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1239 transitions. Word has length 309 [2020-08-21 23:44:06,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:44:06,343 INFO L479 AbstractCegarLoop]: Abstraction has 1050 states and 1239 transitions. [2020-08-21 23:44:06,343 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-21 23:44:06,343 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1239 transitions. [2020-08-21 23:44:06,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2020-08-21 23:44:06,348 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:44:06,349 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:44:06,349 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-21 23:44:06,349 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:44:06,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:44:06,350 INFO L82 PathProgramCache]: Analyzing trace with hash -828307193, now seen corresponding path program 1 times [2020-08-21 23:44:06,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:44:06,350 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [306267712] [2020-08-21 23:44:06,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:44:06,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,668 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 23:44:06,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:44:06,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:44:06,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 23:44:06,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:44:06,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 23:44:06,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 23:44:06,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 23:44:06,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-21 23:44:06,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:44:06,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:44:06,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 23:44:06,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:44:06,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:44:06,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:44:06,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 23:44:06,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:44:06,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:44:06,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:44:06,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-21 23:44:06,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:44:06,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-08-21 23:44:06,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:44:06,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:44:06,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 23:44:06,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-21 23:44:06,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:44:06,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:44:06,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 23:44:06,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:44:06,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-21 23:44:06,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:44:06,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-21 23:44:06,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-08-21 23:44:06,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:44:06,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:44:06,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 23:44:06,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-21 23:44:06,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:44:06,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:44:06,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 23:44:06,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-21 23:44:06,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:44:06,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2020-08-21 23:44:06,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-08-21 23:44:06,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:44:06,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2020-08-21 23:44:06,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:44:06,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:44:06,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:44:06,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 23:44:06,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:44:06,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:44:06,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:44:06,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2020-08-21 23:44:06,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:06,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2020-08-21 23:44:06,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:07,012 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 73 proven. 2 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2020-08-21 23:44:07,012 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [306267712] [2020-08-21 23:44:07,012 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 23:44:07,013 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-21 23:44:07,013 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795089647] [2020-08-21 23:44:07,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-21 23:44:07,014 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:44:07,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-21 23:44:07,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-08-21 23:44:07,015 INFO L87 Difference]: Start difference. First operand 1050 states and 1239 transitions. Second operand 11 states. [2020-08-21 23:44:08,794 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 23:44:09,041 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-21 23:44:09,295 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 23:44:09,561 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-21 23:44:09,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:44:09,959 INFO L93 Difference]: Finished difference Result 2022 states and 2422 transitions. [2020-08-21 23:44:09,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-21 23:44:09,959 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 314 [2020-08-21 23:44:09,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:44:09,966 INFO L225 Difference]: With dead ends: 2022 [2020-08-21 23:44:09,966 INFO L226 Difference]: Without dead ends: 1085 [2020-08-21 23:44:09,969 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2020-08-21 23:44:09,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2020-08-21 23:44:10,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 1060. [2020-08-21 23:44:10,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1060 states. [2020-08-21 23:44:10,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1060 states to 1060 states and 1249 transitions. [2020-08-21 23:44:10,177 INFO L78 Accepts]: Start accepts. Automaton has 1060 states and 1249 transitions. Word has length 314 [2020-08-21 23:44:10,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:44:10,178 INFO L479 AbstractCegarLoop]: Abstraction has 1060 states and 1249 transitions. [2020-08-21 23:44:10,178 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-21 23:44:10,178 INFO L276 IsEmpty]: Start isEmpty. Operand 1060 states and 1249 transitions. [2020-08-21 23:44:10,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2020-08-21 23:44:10,184 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:44:10,185 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:44:10,185 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-21 23:44:10,185 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:44:10,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:44:10,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1324799625, now seen corresponding path program 1 times [2020-08-21 23:44:10,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:44:10,187 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [289575419] [2020-08-21 23:44:10,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:44:10,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,545 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 23:44:10,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:44:10,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:44:10,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 23:44:10,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:44:10,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 23:44:10,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 23:44:10,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 23:44:10,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-21 23:44:10,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:44:10,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:44:10,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 23:44:10,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:44:10,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:44:10,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:44:10,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 23:44:10,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:44:10,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:44:10,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:44:10,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-21 23:44:10,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:44:10,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-08-21 23:44:10,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:44:10,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:44:10,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 23:44:10,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-21 23:44:10,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:44:10,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:44:10,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 23:44:10,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:44:10,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-21 23:44:10,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:44:10,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-21 23:44:10,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-08-21 23:44:10,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:44:10,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:44:10,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 23:44:10,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-21 23:44:10,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:44:10,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:44:10,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 23:44:10,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-21 23:44:10,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:44:10,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2020-08-21 23:44:10,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-08-21 23:44:10,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:44:10,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2020-08-21 23:44:10,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:44:10,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-21 23:44:10,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:44:10,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 23:44:10,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:10,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:44:10,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:11,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:44:11,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:11,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:44:11,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:11,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2020-08-21 23:44:11,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:11,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2020-08-21 23:44:11,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:44:11,123 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 93 proven. 25 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2020-08-21 23:44:11,123 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [289575419] [2020-08-21 23:44:11,123 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 23:44:11,124 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-21 23:44:11,124 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535038351] [2020-08-21 23:44:11,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-21 23:44:11,125 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:44:11,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-21 23:44:11,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2020-08-21 23:44:11,126 INFO L87 Difference]: Start difference. First operand 1060 states and 1249 transitions. Second operand 16 states.