/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 --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label41.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 06:04:46,543 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 06:04:46,545 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 06:04:46,570 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 06:04:46,570 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 06:04:46,571 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 06:04:46,572 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 06:04:46,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 06:04:46,576 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 06:04:46,577 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 06:04:46,578 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 06:04:46,579 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 06:04:46,579 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 06:04:46,580 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 06:04:46,581 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 06:04:46,582 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 06:04:46,583 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 06:04:46,584 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 06:04:46,586 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 06:04:46,588 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 06:04:46,590 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 06:04:46,591 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 06:04:46,593 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 06:04:46,594 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 06:04:46,596 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 06:04:46,597 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 06:04:46,597 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 06:04:46,598 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 06:04:46,599 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 06:04:46,600 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 06:04:46,600 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 06:04:46,601 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 06:04:46,602 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 06:04:46,602 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 06:04:46,603 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 06:04:46,604 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 06:04:46,604 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 06:04:46,605 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 06:04:46,605 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 06:04:46,606 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 06:04:46,607 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 06:04:46,607 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 [2020-10-13 06:04:46,636 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 06:04:46,636 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 06:04:46,637 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 06:04:46,637 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 06:04:46,638 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 06:04:46,638 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 06:04:46,638 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 06:04:46,638 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 06:04:46,638 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 06:04:46,639 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 06:04:46,639 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 06:04:46,639 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 06:04:46,639 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 06:04:46,639 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 06:04:46,640 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 06:04:46,640 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 06:04:46,640 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 06:04:46,640 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 06:04:46,640 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 06:04:46,640 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 06:04:46,641 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 06:04:46,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 06:04:46,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 06:04:46,641 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 06:04:46,641 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 06:04:46,642 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 06:04:46,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 06:04:46,642 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 06:04:46,642 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 06:04:46,642 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.rcfgbuilder: Size of a code block -> SequenceOfStatements 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 -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 06:04:46,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 06:04:46,936 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 06:04:46,939 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 06:04:46,941 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 06:04:46,942 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 06:04:46,943 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label41.c [2020-10-13 06:04:47,026 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/083944837/bdaaa8862e6c46498eff6be680371e3c/FLAGa5c51ebf2 [2020-10-13 06:04:47,645 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 06:04:47,645 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label41.c [2020-10-13 06:04:47,659 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/083944837/bdaaa8862e6c46498eff6be680371e3c/FLAGa5c51ebf2 [2020-10-13 06:04:47,898 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/083944837/bdaaa8862e6c46498eff6be680371e3c [2020-10-13 06:04:47,908 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 06:04:47,910 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 06:04:47,911 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 06:04:47,911 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 06:04:47,915 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 06:04:47,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:04:47" (1/1) ... [2020-10-13 06:04:47,919 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4649669f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:04:47, skipping insertion in model container [2020-10-13 06:04:47,919 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:04:47" (1/1) ... [2020-10-13 06:04:47,927 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 06:04:47,975 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 06:04:48,405 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:04:48,410 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 06:04:48,649 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:04:48,667 INFO L208 MainTranslator]: Completed translation [2020-10-13 06:04:48,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:04:48 WrapperNode [2020-10-13 06:04:48,667 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 06:04:48,668 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 06:04:48,668 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 06:04:48,668 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 06:04:48,680 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:04:48" (1/1) ... [2020-10-13 06:04:48,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:04:48" (1/1) ... [2020-10-13 06:04:48,698 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:04:48" (1/1) ... [2020-10-13 06:04:48,699 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:04:48" (1/1) ... [2020-10-13 06:04:48,742 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:04:48" (1/1) ... [2020-10-13 06:04:48,758 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:04:48" (1/1) ... [2020-10-13 06:04:48,764 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:04:48" (1/1) ... [2020-10-13 06:04:48,771 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 06:04:48,772 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 06:04:48,772 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 06:04:48,772 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 06:04:48,773 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:04:48" (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 [2020-10-13 06:04:48,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 06:04:48,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 06:04:48,835 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 06:04:48,835 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 06:04:48,835 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 06:04:48,835 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 06:04:48,835 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 06:04:48,835 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 06:04:48,836 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 06:04:48,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 06:04:48,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 06:04:50,009 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 06:04:50,010 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 06:04:50,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:04:50 BoogieIcfgContainer [2020-10-13 06:04:50,016 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 06:04:50,018 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 06:04:50,018 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 06:04:50,021 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 06:04:50,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:04:47" (1/3) ... [2020-10-13 06:04:50,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4369603d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:04:50, skipping insertion in model container [2020-10-13 06:04:50,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:04:48" (2/3) ... [2020-10-13 06:04:50,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4369603d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:04:50, skipping insertion in model container [2020-10-13 06:04:50,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:04:50" (3/3) ... [2020-10-13 06:04:50,025 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label41.c [2020-10-13 06:04:50,037 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 06:04:50,045 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 06:04:50,060 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 06:04:50,088 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 06:04:50,089 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 06:04:50,089 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 06:04:50,089 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 06:04:50,089 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 06:04:50,090 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 06:04:50,090 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 06:04:50,090 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 06:04:50,114 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-13 06:04:50,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-13 06:04:50,126 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:50,127 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:04:50,128 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:50,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:50,135 INFO L82 PathProgramCache]: Analyzing trace with hash -1692915649, now seen corresponding path program 1 times [2020-10-13 06:04:50,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:50,145 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1540604651] [2020-10-13 06:04:50,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:50,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:50,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:50,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:51,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:51,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-13 06:04:51,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:04:51,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1591 [2020-10-13 06:04:52,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:52,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 06:04:52,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 06:04:52,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 06:04:52,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 06:04:52,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:52,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:52,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:52,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:52,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:52,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:52,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:04:52,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:52,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:52,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:52,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 06:04:52,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:52,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:04:52,908 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1540604651] [2020-10-13 06:04:52,910 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 06:04:52,911 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-13 06:04:52,911 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523752649] [2020-10-13 06:04:52,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:04:52,918 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:52,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:04:52,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:04:52,936 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 13 states. [2020-10-13 06:04:53,316 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2020-10-13 06:04:53,505 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2020-10-13 06:04:53,727 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 06:04:53,940 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2020-10-13 06:04:54,220 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2020-10-13 06:04:54,616 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2020-10-13 06:04:55,062 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2020-10-13 06:04:55,392 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 84 [2020-10-13 06:04:56,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:56,395 INFO L93 Difference]: Finished difference Result 474 states and 793 transitions. [2020-10-13 06:04:56,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:04:56,399 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 91 [2020-10-13 06:04:56,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:56,431 INFO L225 Difference]: With dead ends: 474 [2020-10-13 06:04:56,432 INFO L226 Difference]: Without dead ends: 205 [2020-10-13 06:04:56,445 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:04:56,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-13 06:04:56,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2020-10-13 06:04:56,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-13 06:04:56,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 277 transitions. [2020-10-13 06:04:56,546 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 277 transitions. Word has length 91 [2020-10-13 06:04:56,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:56,547 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 277 transitions. [2020-10-13 06:04:56,547 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:04:56,547 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 277 transitions. [2020-10-13 06:04:56,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-13 06:04:56,552 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:56,553 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 06:04:56,553 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 06:04:56,553 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:56,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:56,554 INFO L82 PathProgramCache]: Analyzing trace with hash -37114748, now seen corresponding path program 1 times [2020-10-13 06:04:56,554 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:56,554 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [690583979] [2020-10-13 06:04:56,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:56,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:56,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:56,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:56,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:58,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:58,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-13 06:04:58,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:04:58,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1512 [2020-10-13 06:04:58,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:58,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:04:58,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 06:04:58,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 06:04:58,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:04:58,728 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 45 [2020-10-13 06:04:58,872 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 45 [2020-10-13 06:04:59,021 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 42 [2020-10-13 06:04:59,152 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 38 [2020-10-13 06:04:59,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:59,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:59,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:59,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:59,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:59,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:59,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:04:59,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:59,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:59,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:59,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:59,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:59,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:59,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:59,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:59,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:59,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:04:59,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:59,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:04:59,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:59,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:59,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:59,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 06:04:59,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:59,727 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:04:59,728 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [690583979] [2020-10-13 06:04:59,729 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:59,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:04:59,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135122696] [2020-10-13 06:04:59,732 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:04:59,733 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:59,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:04:59,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:04:59,734 INFO L87 Difference]: Start difference. First operand 205 states and 277 transitions. Second operand 13 states. [2020-10-13 06:05:00,176 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 06:05:00,728 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 112 [2020-10-13 06:05:01,541 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 109 [2020-10-13 06:05:01,979 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 106 [2020-10-13 06:05:02,472 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 103 [2020-10-13 06:05:02,728 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 98 [2020-10-13 06:05:03,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:03,352 INFO L93 Difference]: Finished difference Result 433 states and 637 transitions. [2020-10-13 06:05:03,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 06:05:03,354 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 99 [2020-10-13 06:05:03,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:03,358 INFO L225 Difference]: With dead ends: 433 [2020-10-13 06:05:03,359 INFO L226 Difference]: Without dead ends: 294 [2020-10-13 06:05:03,361 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=164, Invalid=388, Unknown=0, NotChecked=0, Total=552 [2020-10-13 06:05:03,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-10-13 06:05:03,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 276. [2020-10-13 06:05:03,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-13 06:05:03,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 355 transitions. [2020-10-13 06:05:03,403 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 355 transitions. Word has length 99 [2020-10-13 06:05:03,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:03,404 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 355 transitions. [2020-10-13 06:05:03,404 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:05:03,404 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 355 transitions. [2020-10-13 06:05:03,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-13 06:05:03,411 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:03,412 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 06:05:03,412 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 06:05:03,412 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:03,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:03,412 INFO L82 PathProgramCache]: Analyzing trace with hash 1027824070, now seen corresponding path program 1 times [2020-10-13 06:05:03,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:03,413 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1462228811] [2020-10-13 06:05:03,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:03,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:03,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:03,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:04,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:04,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-13 06:05:04,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:05:04,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 589 [2020-10-13 06:05:04,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:04,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:05:04,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:05:04,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-13 06:05:04,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 06:05:04,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:04,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:04,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:04,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:04,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:04,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:04,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:05:04,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:04,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:04,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:04,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:04,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:04,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:04,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:04,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:04,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:04,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:05:04,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:04,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:05:04,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:04,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:04,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:04,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:05:04,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:04,214 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:05:04,215 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1462228811] [2020-10-13 06:05:04,215 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:04,215 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:05:04,216 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111382182] [2020-10-13 06:05:04,217 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:05:04,218 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:04,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:05:04,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:05:04,218 INFO L87 Difference]: Start difference. First operand 276 states and 355 transitions. Second operand 5 states. [2020-10-13 06:05:05,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:05,138 INFO L93 Difference]: Finished difference Result 625 states and 849 transitions. [2020-10-13 06:05:05,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:05:05,139 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 102 [2020-10-13 06:05:05,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:05,143 INFO L225 Difference]: With dead ends: 625 [2020-10-13 06:05:05,143 INFO L226 Difference]: Without dead ends: 415 [2020-10-13 06:05:05,145 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:05:05,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2020-10-13 06:05:05,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 413. [2020-10-13 06:05:05,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2020-10-13 06:05:05,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 538 transitions. [2020-10-13 06:05:05,168 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 538 transitions. Word has length 102 [2020-10-13 06:05:05,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:05,169 INFO L479 AbstractCegarLoop]: Abstraction has 413 states and 538 transitions. [2020-10-13 06:05:05,169 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:05:05,170 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 538 transitions. [2020-10-13 06:05:05,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-13 06:05:05,173 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:05,173 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2020-10-13 06:05:05,174 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 06:05:05,174 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:05,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:05,174 INFO L82 PathProgramCache]: Analyzing trace with hash 1805415259, now seen corresponding path program 1 times [2020-10-13 06:05:05,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:05,175 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1602753764] [2020-10-13 06:05:05,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:05,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:05,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:05,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:05,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:07,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:09,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:09,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-13 06:05:09,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:05:09,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4110 [2020-10-13 06:05:09,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:09,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:05:09,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:05:09,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 06:05:09,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:05:09,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:09,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:09,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:09,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:09,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:09,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:09,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:05:09,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:09,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:09,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:09,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:09,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:05:09,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:09,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:09,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:09,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:09,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:05:09,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:09,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:05:09,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:09,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:09,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:09,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:05:09,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:05:09,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 06:05:09,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:09,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:09,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:09,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 06:05:09,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:09,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 06:05:09,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:09,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:05:09,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:05:09,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 06:05:09,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:09,512 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 06:05:09,512 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1602753764] [2020-10-13 06:05:09,513 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:09,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:05:09,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671491369] [2020-10-13 06:05:09,514 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:05:09,515 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:09,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:05:09,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:05:09,516 INFO L87 Difference]: Start difference. First operand 413 states and 538 transitions. Second operand 7 states. [2020-10-13 06:05:10,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:10,757 INFO L93 Difference]: Finished difference Result 1042 states and 1413 transitions. [2020-10-13 06:05:10,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 06:05:10,758 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 111 [2020-10-13 06:05:10,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:10,763 INFO L225 Difference]: With dead ends: 1042 [2020-10-13 06:05:10,763 INFO L226 Difference]: Without dead ends: 695 [2020-10-13 06:05:10,765 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-13 06:05:10,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2020-10-13 06:05:10,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 693. [2020-10-13 06:05:10,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 693 states. [2020-10-13 06:05:10,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 905 transitions. [2020-10-13 06:05:10,797 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 905 transitions. Word has length 111 [2020-10-13 06:05:10,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:10,797 INFO L479 AbstractCegarLoop]: Abstraction has 693 states and 905 transitions. [2020-10-13 06:05:10,797 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:05:10,797 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 905 transitions. [2020-10-13 06:05:10,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-13 06:05:10,853 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:10,853 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2020-10-13 06:05:10,854 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 06:05:10,854 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:10,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:10,854 INFO L82 PathProgramCache]: Analyzing trace with hash -126886054, now seen corresponding path program 1 times [2020-10-13 06:05:10,854 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:10,855 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [419529221] [2020-10-13 06:05:10,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:10,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:10,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:10,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:10,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:11,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:15,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:15,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-10-13 06:05:15,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:05:15,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-13 06:05:15,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:15,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:05:15,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-10-13 06:05:15,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 06:05:15,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:15,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:15,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:15,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:15,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:15,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:15,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:15,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:05:15,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:15,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:15,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:15,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:15,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:05:15,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:15,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:15,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:15,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:15,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:05:15,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:15,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:05:15,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:15,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:15,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:15,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:15,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:05:16,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 06:05:16,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:16,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:16,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:16,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:05:16,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:16,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:05:16,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:16,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:16,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:16,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 06:05:16,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:16,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-13 06:05:16,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:16,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:16,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:16,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 06:05:16,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:16,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 06:05:16,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:16,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:05:16,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:05:16,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 06:05:16,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:05:16,113 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 43 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-13 06:05:16,114 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [419529221] [2020-10-13 06:05:16,114 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:16,115 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:05:16,115 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107575848] [2020-10-13 06:05:16,116 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:05:16,116 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:16,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:05:16,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:05:16,117 INFO L87 Difference]: Start difference. First operand 693 states and 905 transitions. Second operand 7 states. [2020-10-13 06:05:17,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:17,499 INFO L93 Difference]: Finished difference Result 1761 states and 2347 transitions. [2020-10-13 06:05:17,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 06:05:17,500 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 126 [2020-10-13 06:05:17,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:17,507 INFO L225 Difference]: With dead ends: 1761 [2020-10-13 06:05:17,507 INFO L226 Difference]: Without dead ends: 1134 [2020-10-13 06:05:17,510 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:05:17,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1134 states. [2020-10-13 06:05:17,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1134 to 1126. [2020-10-13 06:05:17,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1126 states. [2020-10-13 06:05:17,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 1418 transitions. [2020-10-13 06:05:17,570 INFO L78 Accepts]: Start accepts. Automaton has 1126 states and 1418 transitions. Word has length 126 [2020-10-13 06:05:17,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:17,572 INFO L479 AbstractCegarLoop]: Abstraction has 1126 states and 1418 transitions. [2020-10-13 06:05:17,572 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:05:17,572 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states and 1418 transitions. [2020-10-13 06:05:17,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-13 06:05:17,579 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:17,579 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:05:17,580 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 06:05:17,580 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:17,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:17,580 INFO L82 PathProgramCache]: Analyzing trace with hash 1227936139, now seen corresponding path program 1 times [2020-10-13 06:05:17,581 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:17,581 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1651407959] [2020-10-13 06:05:17,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:17,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:17,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:17,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:18,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:19,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:20,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:21,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:21,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-13 06:05:21,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:05:21,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3923 [2020-10-13 06:05:21,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:21,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:05:21,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:05:21,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 06:05:21,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:21,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:21,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:21,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:21,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:21,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:21,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:21,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:05:21,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:21,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:21,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:21,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:21,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:21,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:21,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:21,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:21,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:21,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:05:21,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:21,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:05:21,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:21,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:21,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:21,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:05:21,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:05:21,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 06:05:21,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:21,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:21,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:21,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:05:21,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:21,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-13 06:05:21,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:21,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:05:21,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:05:21,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 06:05:21,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:05:21,810 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 46 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 06:05:21,810 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1651407959] [2020-10-13 06:05:21,813 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:21,816 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:05:21,816 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775682729] [2020-10-13 06:05:21,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:05:21,819 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:21,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:05:21,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:05:21,822 INFO L87 Difference]: Start difference. First operand 1126 states and 1418 transitions. Second operand 7 states. [2020-10-13 06:05:23,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:23,251 INFO L93 Difference]: Finished difference Result 2625 states and 3402 transitions. [2020-10-13 06:05:23,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 06:05:23,252 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 135 [2020-10-13 06:05:23,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:23,262 INFO L225 Difference]: With dead ends: 2625 [2020-10-13 06:05:23,262 INFO L226 Difference]: Without dead ends: 1565 [2020-10-13 06:05:23,266 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:05:23,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2020-10-13 06:05:23,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 1271. [2020-10-13 06:05:23,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1271 states. [2020-10-13 06:05:23,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1271 states to 1271 states and 1504 transitions. [2020-10-13 06:05:23,331 INFO L78 Accepts]: Start accepts. Automaton has 1271 states and 1504 transitions. Word has length 135 [2020-10-13 06:05:23,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:23,331 INFO L479 AbstractCegarLoop]: Abstraction has 1271 states and 1504 transitions. [2020-10-13 06:05:23,332 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:05:23,332 INFO L276 IsEmpty]: Start isEmpty. Operand 1271 states and 1504 transitions. [2020-10-13 06:05:23,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-13 06:05:23,336 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:23,336 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:05:23,336 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 06:05:23,337 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:23,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:23,337 INFO L82 PathProgramCache]: Analyzing trace with hash -390064674, now seen corresponding path program 1 times [2020-10-13 06:05:23,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:23,338 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1657021345] [2020-10-13 06:05:23,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:23,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:23,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:23,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:23,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:23,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:27,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:28,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:28,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-13 06:05:28,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:05:28,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-13 06:05:28,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:28,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:05:28,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:05:28,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 06:05:28,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:28,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:28,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:28,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:28,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:28,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:28,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:28,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:05:28,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:28,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:28,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:28,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:28,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:28,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:28,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:28,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:28,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:28,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:05:28,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:28,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:05:28,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:28,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:28,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:28,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:05:28,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 06:05:28,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 06:05:28,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:28,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:28,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:28,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 06:05:28,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:28,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 06:05:28,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:28,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:05:28,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:05:28,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 06:05:28,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:28,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-13 06:05:28,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:28,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:28,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:28,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:05:28,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:28,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 06:05:28,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:28,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:28,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-13 06:05:28,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:28,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:28,694 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 59 proven. 11 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-13 06:05:28,694 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1657021345] [2020-10-13 06:05:28,694 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:28,695 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 06:05:28,695 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292328724] [2020-10-13 06:05:28,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 06:05:28,696 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:28,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 06:05:28,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 06:05:28,697 INFO L87 Difference]: Start difference. First operand 1271 states and 1504 transitions. Second operand 8 states. [2020-10-13 06:05:30,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:30,511 INFO L93 Difference]: Finished difference Result 3314 states and 4062 transitions. [2020-10-13 06:05:30,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 06:05:30,512 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 147 [2020-10-13 06:05:30,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:30,519 INFO L225 Difference]: With dead ends: 3314 [2020-10-13 06:05:30,520 INFO L226 Difference]: Without dead ends: 1277 [2020-10-13 06:05:30,525 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-10-13 06:05:30,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2020-10-13 06:05:30,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 1120. [2020-10-13 06:05:30,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1120 states. [2020-10-13 06:05:30,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 1220 transitions. [2020-10-13 06:05:30,582 INFO L78 Accepts]: Start accepts. Automaton has 1120 states and 1220 transitions. Word has length 147 [2020-10-13 06:05:30,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:30,583 INFO L479 AbstractCegarLoop]: Abstraction has 1120 states and 1220 transitions. [2020-10-13 06:05:30,583 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 06:05:30,583 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states and 1220 transitions. [2020-10-13 06:05:30,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-13 06:05:30,587 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:30,588 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:05:30,588 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 06:05:30,588 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:30,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:30,589 INFO L82 PathProgramCache]: Analyzing trace with hash 95249565, now seen corresponding path program 1 times [2020-10-13 06:05:30,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:30,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1718158021] [2020-10-13 06:05:30,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:30,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:30,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:30,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:30,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:31,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:31,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:33,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:33,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-13 06:05:33,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:05:33,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2493 [2020-10-13 06:05:33,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:33,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:05:33,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-13 06:05:33,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 06:05:33,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:33,545 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 47 [2020-10-13 06:05:33,668 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 44 [2020-10-13 06:05:34,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:34,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:34,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:34,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:34,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:34,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:34,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:05:34,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:34,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:34,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:34,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:34,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:34,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:34,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:34,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:34,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:34,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:05:34,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:34,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:05:34,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:34,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:34,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:34,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:34,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:34,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:05:34,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:34,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:34,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:34,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:05:34,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:34,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-13 06:05:34,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:34,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:34,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:34,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 06:05:34,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:34,440 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 06:05:34,440 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1718158021] [2020-10-13 06:05:34,441 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:34,441 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 06:05:34,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948368630] [2020-10-13 06:05:34,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 06:05:34,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:34,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 06:05:34,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-13 06:05:34,443 INFO L87 Difference]: Start difference. First operand 1120 states and 1220 transitions. Second operand 14 states. [2020-10-13 06:05:35,109 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2020-10-13 06:05:35,378 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 108 [2020-10-13 06:05:35,688 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 105 [2020-10-13 06:05:36,065 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-13 06:05:36,415 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 99 [2020-10-13 06:05:36,663 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 96 [2020-10-13 06:05:37,054 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 91 [2020-10-13 06:05:37,632 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-13 06:05:37,820 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-13 06:05:38,055 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-13 06:05:38,257 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-13 06:05:38,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:38,647 INFO L93 Difference]: Finished difference Result 2322 states and 2587 transitions. [2020-10-13 06:05:38,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-13 06:05:38,650 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 149 [2020-10-13 06:05:38,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:38,659 INFO L225 Difference]: With dead ends: 2322 [2020-10-13 06:05:38,659 INFO L226 Difference]: Without dead ends: 1268 [2020-10-13 06:05:38,662 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=282, Invalid=648, Unknown=0, NotChecked=0, Total=930 [2020-10-13 06:05:38,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1268 states. [2020-10-13 06:05:38,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1268 to 1192. [2020-10-13 06:05:38,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1192 states. [2020-10-13 06:05:38,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1192 states to 1192 states and 1299 transitions. [2020-10-13 06:05:38,696 INFO L78 Accepts]: Start accepts. Automaton has 1192 states and 1299 transitions. Word has length 149 [2020-10-13 06:05:38,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:38,696 INFO L479 AbstractCegarLoop]: Abstraction has 1192 states and 1299 transitions. [2020-10-13 06:05:38,697 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 06:05:38,697 INFO L276 IsEmpty]: Start isEmpty. Operand 1192 states and 1299 transitions. [2020-10-13 06:05:38,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-13 06:05:38,701 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:38,701 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 06:05:38,702 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 06:05:38,702 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:38,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:38,702 INFO L82 PathProgramCache]: Analyzing trace with hash 615932303, now seen corresponding path program 1 times [2020-10-13 06:05:38,703 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:38,703 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1155931866] [2020-10-13 06:05:38,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:38,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:38,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:38,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:39,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:39,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:40,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:40,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-13 06:05:40,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:05:40,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1897 [2020-10-13 06:05:40,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:40,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:05:40,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-13 06:05:40,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 06:05:40,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:40,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:40,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:40,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:40,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:40,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:40,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:40,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:05:40,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:40,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:40,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:40,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:40,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:40,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:40,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:40,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:41,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:41,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:05:41,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:41,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:05:41,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:41,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:41,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:41,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:41,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:41,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:05:41,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:41,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:41,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:41,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:05:41,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:41,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 06:05:41,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:41,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:41,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:41,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-13 06:05:41,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:41,133 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-13 06:05:41,133 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1155931866] [2020-10-13 06:05:41,134 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:41,134 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:05:41,134 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140005513] [2020-10-13 06:05:41,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:05:41,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:41,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:05:41,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:05:41,135 INFO L87 Difference]: Start difference. First operand 1192 states and 1299 transitions. Second operand 13 states. [2020-10-13 06:05:42,085 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2020-10-13 06:05:42,359 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 89 [2020-10-13 06:05:42,558 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2020-10-13 06:05:42,877 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2020-10-13 06:05:43,221 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 85 [2020-10-13 06:05:43,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:43,553 INFO L93 Difference]: Finished difference Result 2382 states and 2625 transitions. [2020-10-13 06:05:43,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:05:43,554 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 165 [2020-10-13 06:05:43,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:43,560 INFO L225 Difference]: With dead ends: 2382 [2020-10-13 06:05:43,560 INFO L226 Difference]: Without dead ends: 1256 [2020-10-13 06:05:43,563 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:05:43,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1256 states. [2020-10-13 06:05:43,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1256 to 1252. [2020-10-13 06:05:43,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1252 states. [2020-10-13 06:05:43,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1252 states to 1252 states and 1364 transitions. [2020-10-13 06:05:43,597 INFO L78 Accepts]: Start accepts. Automaton has 1252 states and 1364 transitions. Word has length 165 [2020-10-13 06:05:43,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:43,598 INFO L479 AbstractCegarLoop]: Abstraction has 1252 states and 1364 transitions. [2020-10-13 06:05:43,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:05:43,598 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states and 1364 transitions. [2020-10-13 06:05:43,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-10-13 06:05:43,602 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:43,602 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 06:05:43,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 06:05:43,603 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:43,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:43,603 INFO L82 PathProgramCache]: Analyzing trace with hash -367509989, now seen corresponding path program 1 times [2020-10-13 06:05:43,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:43,604 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [906264769] [2020-10-13 06:05:43,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:43,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:43,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:43,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:43,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:44,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:45,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:45,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-13 06:05:45,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:05:45,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1607 [2020-10-13 06:05:45,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:45,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:05:45,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-13 06:05:45,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:05:45,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:45,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:45,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:45,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:45,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:45,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:45,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:45,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:05:45,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:45,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:45,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:45,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:45,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:45,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:45,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:45,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:45,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:45,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:05:45,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:45,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:05:45,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:45,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:45,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:45,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:45,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:45,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:05:45,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:45,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:45,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:45,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 06:05:45,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:45,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 06:05:45,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:45,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:45,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:45,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 06:05:45,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:45,808 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 75 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-13 06:05:45,808 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [906264769] [2020-10-13 06:05:45,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:45,809 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:05:45,809 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802134564] [2020-10-13 06:05:45,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:05:45,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:45,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:05:45,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:05:45,810 INFO L87 Difference]: Start difference. First operand 1252 states and 1364 transitions. Second operand 13 states. [2020-10-13 06:05:46,711 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 06:05:47,013 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-13 06:05:47,237 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-13 06:05:47,447 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-13 06:05:47,776 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-13 06:05:47,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:47,969 INFO L93 Difference]: Finished difference Result 2502 states and 2739 transitions. [2020-10-13 06:05:47,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:05:47,974 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 171 [2020-10-13 06:05:47,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:47,980 INFO L225 Difference]: With dead ends: 2502 [2020-10-13 06:05:47,980 INFO L226 Difference]: Without dead ends: 1299 [2020-10-13 06:05:47,986 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:05:47,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1299 states. [2020-10-13 06:05:48,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1299 to 1295. [2020-10-13 06:05:48,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1295 states. [2020-10-13 06:05:48,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1295 states to 1295 states and 1413 transitions. [2020-10-13 06:05:48,021 INFO L78 Accepts]: Start accepts. Automaton has 1295 states and 1413 transitions. Word has length 171 [2020-10-13 06:05:48,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:48,021 INFO L479 AbstractCegarLoop]: Abstraction has 1295 states and 1413 transitions. [2020-10-13 06:05:48,021 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:05:48,022 INFO L276 IsEmpty]: Start isEmpty. Operand 1295 states and 1413 transitions. [2020-10-13 06:05:48,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-10-13 06:05:48,025 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:48,026 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:05:48,026 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 06:05:48,026 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:48,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:48,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1989071174, now seen corresponding path program 1 times [2020-10-13 06:05:48,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:48,027 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [586804150] [2020-10-13 06:05:48,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:48,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:48,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:48,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:48,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:48,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:48,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:50,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:50,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-13 06:05:50,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:05:50,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2485 [2020-10-13 06:05:50,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:50,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:05:50,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-13 06:05:50,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:05:50,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:50,842 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 52 [2020-10-13 06:05:51,045 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 52 [2020-10-13 06:05:51,263 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 52 [2020-10-13 06:05:51,527 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 51 [2020-10-13 06:05:51,773 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 48 [2020-10-13 06:05:52,008 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 45 [2020-10-13 06:05:52,245 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 41 [2020-10-13 06:05:52,486 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 35 [2020-10-13 06:05:52,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:05:52,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:52,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:52,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:52,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:05:52,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:52,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:05:52,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:52,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:52,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:52,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:52,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:52,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:05:52,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:52,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:52,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:52,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:05:52,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:52,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 06:05:52,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:52,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:52,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:52,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:52,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:52,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:05:52,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:52,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:52,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:52,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:05:52,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:52,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 06:05:52,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:52,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:05:52,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:52,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:05:52,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:52,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 06:05:52,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:52,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:52,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:05:52,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 06:05:52,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:05:52,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 06:05:52,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:05:52,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:05:52,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:05:52,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 06:05:52,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:05:52,809 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 78 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-13 06:05:52,810 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [586804150] [2020-10-13 06:05:52,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:05:52,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:05:52,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919368391] [2020-10-13 06:05:52,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:05:52,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:05:52,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:05:52,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:05:52,812 INFO L87 Difference]: Start difference. First operand 1295 states and 1413 transitions. Second operand 13 states. [2020-10-13 06:05:53,384 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-13 06:05:53,571 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-13 06:05:53,977 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 114 [2020-10-13 06:05:54,400 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 111 [2020-10-13 06:05:54,738 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 108 [2020-10-13 06:05:54,929 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2020-10-13 06:05:55,248 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 105 [2020-10-13 06:05:55,676 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 100 [2020-10-13 06:05:55,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:05:55,874 INFO L93 Difference]: Finished difference Result 2584 states and 2832 transitions. [2020-10-13 06:05:55,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:05:55,875 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 175 [2020-10-13 06:05:55,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:05:55,881 INFO L225 Difference]: With dead ends: 2584 [2020-10-13 06:05:55,881 INFO L226 Difference]: Without dead ends: 1338 [2020-10-13 06:05:55,885 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:05:55,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1338 states. [2020-10-13 06:05:55,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1338 to 1295. [2020-10-13 06:05:55,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1295 states. [2020-10-13 06:05:55,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1295 states to 1295 states and 1413 transitions. [2020-10-13 06:05:55,920 INFO L78 Accepts]: Start accepts. Automaton has 1295 states and 1413 transitions. Word has length 175 [2020-10-13 06:05:55,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:05:55,920 INFO L479 AbstractCegarLoop]: Abstraction has 1295 states and 1413 transitions. [2020-10-13 06:05:55,920 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:05:55,920 INFO L276 IsEmpty]: Start isEmpty. Operand 1295 states and 1413 transitions. [2020-10-13 06:05:55,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-10-13 06:05:55,924 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:05:55,925 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:05:55,925 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 06:05:55,925 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:05:55,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:05:55,926 INFO L82 PathProgramCache]: Analyzing trace with hash 210625903, now seen corresponding path program 1 times [2020-10-13 06:05:55,926 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:05:55,926 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [484484066] [2020-10-13 06:05:55,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:05:55,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:05:56,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:56,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:56,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:56,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:58,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:05:58,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:00,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:00,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-10-13 06:06:00,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 06:06:00,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-13 06:06:00,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:00,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:06:00,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-13 06:06:00,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 06:06:00,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:01,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:01,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:01,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:01,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:01,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:01,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:01,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:06:01,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:01,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:01,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:01,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:01,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:01,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:01,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:01,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:01,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:01,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:06:01,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:01,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 06:06:01,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:01,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:01,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:01,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:01,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:01,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:06:01,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:01,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:01,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:01,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:06:01,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:01,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:06:01,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:01,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:01,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:01,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:01,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:01,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-13 06:06:01,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:01,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:01,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:01,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-13 06:06:01,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:01,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:06:01,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:01,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:01,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:01,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 06:06:01,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:01,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 06:06:01,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:01,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:01,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:01,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 06:06:01,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:01,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:06:01,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:01,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:06:01,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:06:01,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 06:06:01,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:01,260 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 104 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-10-13 06:06:01,261 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [484484066] [2020-10-13 06:06:01,261 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:01,261 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 06:06:01,261 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664567997] [2020-10-13 06:06:01,262 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 06:06:01,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:01,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 06:06:01,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 06:06:01,262 INFO L87 Difference]: Start difference. First operand 1295 states and 1413 transitions. Second operand 8 states. [2020-10-13 06:06:02,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:02,976 INFO L93 Difference]: Finished difference Result 3080 states and 3422 transitions. [2020-10-13 06:06:02,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 06:06:02,977 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 179 [2020-10-13 06:06:02,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:02,986 INFO L225 Difference]: With dead ends: 3080 [2020-10-13 06:06:02,986 INFO L226 Difference]: Without dead ends: 1851 [2020-10-13 06:06:02,989 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:06:02,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1851 states. [2020-10-13 06:06:03,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1851 to 1712. [2020-10-13 06:06:03,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1712 states. [2020-10-13 06:06:03,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1712 states to 1712 states and 1871 transitions. [2020-10-13 06:06:03,032 INFO L78 Accepts]: Start accepts. Automaton has 1712 states and 1871 transitions. Word has length 179 [2020-10-13 06:06:03,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:03,033 INFO L479 AbstractCegarLoop]: Abstraction has 1712 states and 1871 transitions. [2020-10-13 06:06:03,033 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 06:06:03,033 INFO L276 IsEmpty]: Start isEmpty. Operand 1712 states and 1871 transitions. [2020-10-13 06:06:03,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-10-13 06:06:03,038 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:03,038 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 06:06:03,038 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 06:06:03,038 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:03,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:03,039 INFO L82 PathProgramCache]: Analyzing trace with hash 1551478112, now seen corresponding path program 1 times [2020-10-13 06:06:03,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:03,039 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [681271943] [2020-10-13 06:06:03,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:03,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:03,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:03,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:03,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:04,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:04,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:07,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:07,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-13 06:06:07,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:06:07,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4762 [2020-10-13 06:06:07,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:07,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:06:07,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-13 06:06:07,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 06:06:07,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:07,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:07,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:07,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:07,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:07,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:07,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:07,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:06:07,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:07,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:07,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:07,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:07,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:07,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:07,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:07,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:07,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:07,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:06:07,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:07,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 06:06:07,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:07,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:07,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:07,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 06:06:07,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:07,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:06:07,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:07,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:07,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:07,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:06:07,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:07,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 06:06:07,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:07,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:06:07,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:06:07,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 06:06:07,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:08,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-13 06:06:08,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:08,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:08,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:08,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 06:06:08,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:08,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:06:08,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:08,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:08,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-10-13 06:06:08,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:08,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:08,083 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 95 proven. 14 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-13 06:06:08,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [681271943] [2020-10-13 06:06:08,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:08,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:06:08,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961362386] [2020-10-13 06:06:08,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:06:08,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:08,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:06:08,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:06:08,085 INFO L87 Difference]: Start difference. First operand 1712 states and 1871 transitions. Second operand 7 states. [2020-10-13 06:06:09,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:09,211 INFO L93 Difference]: Finished difference Result 3362 states and 3675 transitions. [2020-10-13 06:06:09,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 06:06:09,211 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 179 [2020-10-13 06:06:09,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:09,218 INFO L225 Difference]: With dead ends: 3362 [2020-10-13 06:06:09,218 INFO L226 Difference]: Without dead ends: 1716 [2020-10-13 06:06:09,222 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:06:09,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1716 states. [2020-10-13 06:06:09,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1716 to 1714. [2020-10-13 06:06:09,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1714 states. [2020-10-13 06:06:09,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1714 states to 1714 states and 1869 transitions. [2020-10-13 06:06:09,261 INFO L78 Accepts]: Start accepts. Automaton has 1714 states and 1869 transitions. Word has length 179 [2020-10-13 06:06:09,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:09,261 INFO L479 AbstractCegarLoop]: Abstraction has 1714 states and 1869 transitions. [2020-10-13 06:06:09,261 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:06:09,262 INFO L276 IsEmpty]: Start isEmpty. Operand 1714 states and 1869 transitions. [2020-10-13 06:06:09,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-10-13 06:06:09,266 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:09,267 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 06:06:09,267 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 06:06:09,267 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:09,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:09,267 INFO L82 PathProgramCache]: Analyzing trace with hash -1935502108, now seen corresponding path program 1 times [2020-10-13 06:06:09,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:09,268 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2114540320] [2020-10-13 06:06:09,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:09,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:09,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:09,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:09,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:09,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:10,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:11,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:11,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-10-13 06:06:11,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:06:11,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1942 [2020-10-13 06:06:11,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:11,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:06:11,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-13 06:06:11,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 06:06:11,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:11,595 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 46 [2020-10-13 06:06:11,712 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 43 [2020-10-13 06:06:12,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:12,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:12,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:12,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:12,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:12,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:12,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:06:12,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:12,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:12,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:12,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:12,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:12,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:12,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:12,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:12,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:12,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:06:12,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:12,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:06:12,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:12,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:12,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:12,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:12,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:12,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:06:12,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:12,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:12,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:12,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:06:12,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:12,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:06:12,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:12,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:12,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:12,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:12,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:12,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 06:06:12,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:12,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:12,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:12,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 06:06:12,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:12,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:06:12,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:12,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:12,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:12,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 06:06:12,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:12,355 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 84 proven. 3 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2020-10-13 06:06:12,356 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2114540320] [2020-10-13 06:06:12,356 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:12,356 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:06:12,356 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118816558] [2020-10-13 06:06:12,357 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:06:12,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:12,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:06:12,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:06:12,357 INFO L87 Difference]: Start difference. First operand 1714 states and 1869 transitions. Second operand 13 states. [2020-10-13 06:06:12,703 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-13 06:06:12,987 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-13 06:06:13,434 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-13 06:06:13,644 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-13 06:06:13,848 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-13 06:06:14,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:14,752 INFO L93 Difference]: Finished difference Result 3316 states and 3623 transitions. [2020-10-13 06:06:14,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 06:06:14,754 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 181 [2020-10-13 06:06:14,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:14,761 INFO L225 Difference]: With dead ends: 3316 [2020-10-13 06:06:14,761 INFO L226 Difference]: Without dead ends: 1668 [2020-10-13 06:06:14,766 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=170, Invalid=336, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:06:14,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1668 states. [2020-10-13 06:06:14,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1668 to 1577. [2020-10-13 06:06:14,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1577 states. [2020-10-13 06:06:14,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 1710 transitions. [2020-10-13 06:06:14,808 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 1710 transitions. Word has length 181 [2020-10-13 06:06:14,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:14,808 INFO L479 AbstractCegarLoop]: Abstraction has 1577 states and 1710 transitions. [2020-10-13 06:06:14,809 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:06:14,809 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 1710 transitions. [2020-10-13 06:06:14,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-10-13 06:06:14,814 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:14,814 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:06:14,814 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 06:06:14,814 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:14,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:14,815 INFO L82 PathProgramCache]: Analyzing trace with hash -492831884, now seen corresponding path program 1 times [2020-10-13 06:06:14,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:14,815 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [795081830] [2020-10-13 06:06:14,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:14,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:14,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:14,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:14,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:15,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:16,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:19,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:19,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 215 [2020-10-13 06:06:19,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:06:19,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-13 06:06:19,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:19,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:06:19,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-13 06:06:19,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 06:06:19,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:19,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:19,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:19,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:19,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:19,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:19,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:19,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:06:19,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:19,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:19,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:19,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:19,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:19,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:19,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:19,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:19,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:19,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:06:19,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:19,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 06:06:19,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:19,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:19,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:19,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-13 06:06:19,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:20,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:06:20,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:20,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:20,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:20,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:06:20,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:20,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:06:20,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:20,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:06:20,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:06:20,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 06:06:20,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:20,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-13 06:06:20,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:20,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:20,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:20,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 06:06:20,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:20,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:06:20,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:20,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:20,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-10-13 06:06:20,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:20,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:20,119 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 117 proven. 14 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-13 06:06:20,119 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [795081830] [2020-10-13 06:06:20,120 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:20,120 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:06:20,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923182919] [2020-10-13 06:06:20,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:06:20,121 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:20,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:06:20,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:06:20,121 INFO L87 Difference]: Start difference. First operand 1577 states and 1710 transitions. Second operand 7 states. [2020-10-13 06:06:21,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:21,163 INFO L93 Difference]: Finished difference Result 3100 states and 3375 transitions. [2020-10-13 06:06:21,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 06:06:21,164 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 201 [2020-10-13 06:06:21,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:21,172 INFO L225 Difference]: With dead ends: 3100 [2020-10-13 06:06:21,172 INFO L226 Difference]: Without dead ends: 1591 [2020-10-13 06:06:21,178 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:06:21,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1591 states. [2020-10-13 06:06:21,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1591 to 1581. [2020-10-13 06:06:21,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1581 states. [2020-10-13 06:06:21,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 1710 transitions. [2020-10-13 06:06:21,215 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 1710 transitions. Word has length 201 [2020-10-13 06:06:21,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:21,215 INFO L479 AbstractCegarLoop]: Abstraction has 1581 states and 1710 transitions. [2020-10-13 06:06:21,215 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:06:21,215 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 1710 transitions. [2020-10-13 06:06:21,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-10-13 06:06:21,220 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:21,220 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 06:06:21,221 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 06:06:21,221 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:21,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:21,221 INFO L82 PathProgramCache]: Analyzing trace with hash 740758918, now seen corresponding path program 1 times [2020-10-13 06:06:21,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:21,222 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [328104469] [2020-10-13 06:06:21,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:21,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:21,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:21,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:21,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:21,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:21,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 221 [2020-10-13 06:06:21,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:06:21,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 648 [2020-10-13 06:06:21,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:21,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:06:21,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-13 06:06:21,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 06:06:21,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:22,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:22,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:22,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:22,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:22,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:22,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:22,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:06:22,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:22,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:22,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:22,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:22,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:22,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:22,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:22,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:22,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:22,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:06:22,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:22,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:06:22,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:22,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:22,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:22,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:22,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:22,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:06:22,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:22,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:22,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:22,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:06:22,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:22,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:06:22,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:22,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:22,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:22,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:22,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:22,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 06:06:22,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:22,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:22,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:22,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-13 06:06:22,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:22,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-13 06:06:22,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:22,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:22,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:22,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 06:06:22,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:22,415 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 110 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-13 06:06:22,416 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [328104469] [2020-10-13 06:06:22,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:22,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:06:22,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373932674] [2020-10-13 06:06:22,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:06:22,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:22,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:06:22,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:06:22,418 INFO L87 Difference]: Start difference. First operand 1581 states and 1710 transitions. Second operand 5 states. [2020-10-13 06:06:23,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:23,259 INFO L93 Difference]: Finished difference Result 1804 states and 1934 transitions. [2020-10-13 06:06:23,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:06:23,262 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 207 [2020-10-13 06:06:23,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:23,267 INFO L225 Difference]: With dead ends: 1804 [2020-10-13 06:06:23,267 INFO L226 Difference]: Without dead ends: 1581 [2020-10-13 06:06:23,268 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:06:23,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states. [2020-10-13 06:06:23,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 1579. [2020-10-13 06:06:23,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1579 states. [2020-10-13 06:06:23,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 1705 transitions. [2020-10-13 06:06:23,304 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 1705 transitions. Word has length 207 [2020-10-13 06:06:23,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:23,304 INFO L479 AbstractCegarLoop]: Abstraction has 1579 states and 1705 transitions. [2020-10-13 06:06:23,304 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:06:23,304 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 1705 transitions. [2020-10-13 06:06:23,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-10-13 06:06:23,309 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:23,310 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 06:06:23,310 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 06:06:23,310 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:23,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:23,310 INFO L82 PathProgramCache]: Analyzing trace with hash -1034592126, now seen corresponding path program 1 times [2020-10-13 06:06:23,311 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:23,311 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [389671346] [2020-10-13 06:06:23,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:23,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:23,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:23,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:23,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:23,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:24,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:24,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:26,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:26,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 232 [2020-10-13 06:06:26,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 06:06:26,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2718 [2020-10-13 06:06:26,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:26,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:06:26,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-10-13 06:06:26,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:06:26,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:26,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:26,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:26,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:26,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:26,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:26,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:26,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:06:26,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:26,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:26,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:26,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:26,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:26,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:26,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:26,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:26,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:26,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:06:26,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:26,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:06:26,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:26,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:26,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:26,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:26,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:26,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:06:26,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:26,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:26,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:26,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:06:26,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:26,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:06:26,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:26,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:26,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:26,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:26,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:26,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:06:26,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:26,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:26,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:26,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:06:26,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:26,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:06:26,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:26,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:26,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:26,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 06:06:26,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:26,756 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 121 proven. 3 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-10-13 06:06:26,757 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [389671346] [2020-10-13 06:06:26,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:26,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:06:26,757 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244463260] [2020-10-13 06:06:26,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:06:26,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:26,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:06:26,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:06:26,758 INFO L87 Difference]: Start difference. First operand 1579 states and 1705 transitions. Second operand 13 states. [2020-10-13 06:06:27,774 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-13 06:06:27,999 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2020-10-13 06:06:28,208 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2020-10-13 06:06:28,573 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2020-10-13 06:06:28,972 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2020-10-13 06:06:29,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:29,095 INFO L93 Difference]: Finished difference Result 3026 states and 3276 transitions. [2020-10-13 06:06:29,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:06:29,096 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 218 [2020-10-13 06:06:29,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:29,101 INFO L225 Difference]: With dead ends: 3026 [2020-10-13 06:06:29,101 INFO L226 Difference]: Without dead ends: 1457 [2020-10-13 06:06:29,104 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:06:29,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2020-10-13 06:06:29,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 1453. [2020-10-13 06:06:29,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1453 states. [2020-10-13 06:06:29,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1453 states to 1453 states and 1542 transitions. [2020-10-13 06:06:29,134 INFO L78 Accepts]: Start accepts. Automaton has 1453 states and 1542 transitions. Word has length 218 [2020-10-13 06:06:29,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:29,135 INFO L479 AbstractCegarLoop]: Abstraction has 1453 states and 1542 transitions. [2020-10-13 06:06:29,135 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:06:29,135 INFO L276 IsEmpty]: Start isEmpty. Operand 1453 states and 1542 transitions. [2020-10-13 06:06:29,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2020-10-13 06:06:29,139 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:29,139 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 06:06:29,139 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 06:06:29,139 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:29,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:29,140 INFO L82 PathProgramCache]: Analyzing trace with hash -105459553, now seen corresponding path program 1 times [2020-10-13 06:06:29,140 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:29,140 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [948808976] [2020-10-13 06:06:29,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:29,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:29,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:29,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:29,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:30,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:30,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 279 [2020-10-13 06:06:30,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:06:30,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 922 [2020-10-13 06:06:30,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:30,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:06:30,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-13 06:06:30,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 06:06:30,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:30,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:30,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:30,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:30,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:30,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:30,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:30,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:06:30,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:30,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:30,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:30,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:30,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:30,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:30,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:30,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:30,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:30,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:06:30,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:30,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 06:06:30,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:30,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:30,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:30,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:30,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:30,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:06:30,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:30,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:30,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:30,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:06:30,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:30,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 06:06:30,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:30,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:30,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:30,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 06:06:30,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:30,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:06:30,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:30,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:30,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:30,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:06:30,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:30,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:06:30,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:30,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:06:30,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:06:30,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 06:06:30,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:30,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-13 06:06:30,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:30,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:30,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:30,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-13 06:06:30,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:30,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:06:30,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:30,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:30,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-13 06:06:30,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:30,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:30,423 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 197 proven. 14 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2020-10-13 06:06:30,423 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [948808976] [2020-10-13 06:06:30,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:30,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:06:30,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660896067] [2020-10-13 06:06:30,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:06:30,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:30,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:06:30,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:06:30,425 INFO L87 Difference]: Start difference. First operand 1453 states and 1542 transitions. Second operand 7 states. [2020-10-13 06:06:31,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:31,648 INFO L93 Difference]: Finished difference Result 2846 states and 3021 transitions. [2020-10-13 06:06:31,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 06:06:31,649 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 263 [2020-10-13 06:06:31,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:31,654 INFO L225 Difference]: With dead ends: 2846 [2020-10-13 06:06:31,654 INFO L226 Difference]: Without dead ends: 1461 [2020-10-13 06:06:31,656 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:06:31,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1461 states. [2020-10-13 06:06:31,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1461 to 1455. [2020-10-13 06:06:31,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1455 states. [2020-10-13 06:06:31,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1455 states to 1455 states and 1541 transitions. [2020-10-13 06:06:31,689 INFO L78 Accepts]: Start accepts. Automaton has 1455 states and 1541 transitions. Word has length 263 [2020-10-13 06:06:31,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:31,689 INFO L479 AbstractCegarLoop]: Abstraction has 1455 states and 1541 transitions. [2020-10-13 06:06:31,689 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:06:31,689 INFO L276 IsEmpty]: Start isEmpty. Operand 1455 states and 1541 transitions. [2020-10-13 06:06:31,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-10-13 06:06:31,694 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:31,694 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 06:06:31,695 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 06:06:31,695 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:31,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:31,695 INFO L82 PathProgramCache]: Analyzing trace with hash 274626074, now seen corresponding path program 1 times [2020-10-13 06:06:31,695 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:31,695 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [295463393] [2020-10-13 06:06:31,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:31,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:31,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:32,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:32,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:32,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 294 [2020-10-13 06:06:32,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:06:32,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 656 [2020-10-13 06:06:32,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:32,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:06:32,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 203 [2020-10-13 06:06:32,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-13 06:06:32,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:32,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:32,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:32,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:32,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:32,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:32,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:32,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:06:32,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:32,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:32,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:32,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:32,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:32,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:32,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:32,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:32,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:32,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:06:32,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:32,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:06:32,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:32,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:32,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:32,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:32,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:32,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:06:32,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:32,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:32,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:32,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:06:32,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:32,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:06:32,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:32,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:32,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:32,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:32,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:32,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:06:32,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:32,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:32,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:32,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:06:32,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:32,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:06:32,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:32,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:32,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:32,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:32,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:32,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:06:32,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:32,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:32,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:32,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:06:32,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:32,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:06:32,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:32,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:32,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:32,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:32,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:32,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:06:32,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:32,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:32,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:32,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-13 06:06:32,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:32,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 06:06:32,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:32,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:32,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:32,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-13 06:06:32,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:32,777 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 177 proven. 5 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2020-10-13 06:06:32,778 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [295463393] [2020-10-13 06:06:32,778 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:32,778 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:06:32,778 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23401995] [2020-10-13 06:06:32,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:06:32,779 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:32,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:06:32,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:06:32,779 INFO L87 Difference]: Start difference. First operand 1455 states and 1541 transitions. Second operand 5 states. [2020-10-13 06:06:33,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:33,586 INFO L93 Difference]: Finished difference Result 1672 states and 1760 transitions. [2020-10-13 06:06:33,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:06:33,587 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 276 [2020-10-13 06:06:33,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:33,595 INFO L225 Difference]: With dead ends: 1672 [2020-10-13 06:06:33,595 INFO L226 Difference]: Without dead ends: 1457 [2020-10-13 06:06:33,597 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:06:33,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2020-10-13 06:06:33,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 1455. [2020-10-13 06:06:33,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1455 states. [2020-10-13 06:06:33,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1455 states to 1455 states and 1539 transitions. [2020-10-13 06:06:33,631 INFO L78 Accepts]: Start accepts. Automaton has 1455 states and 1539 transitions. Word has length 276 [2020-10-13 06:06:33,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:33,631 INFO L479 AbstractCegarLoop]: Abstraction has 1455 states and 1539 transitions. [2020-10-13 06:06:33,631 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:06:33,632 INFO L276 IsEmpty]: Start isEmpty. Operand 1455 states and 1539 transitions. [2020-10-13 06:06:33,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2020-10-13 06:06:33,638 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:06:33,638 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 06:06:33,638 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 06:06:33,639 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:06:33,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:06:33,639 INFO L82 PathProgramCache]: Analyzing trace with hash 404513964, now seen corresponding path program 1 times [2020-10-13 06:06:33,639 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:06:33,639 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1529523867] [2020-10-13 06:06:33,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:06:33,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:33,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:33,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:34,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:35,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:35,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 321 [2020-10-13 06:06:35,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:06:35,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1480 [2020-10-13 06:06:35,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:35,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:06:35,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 230 [2020-10-13 06:06:35,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-13 06:06:35,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:35,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:06:35,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:35,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:35,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:35,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:06:35,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:35,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:06:35,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:35,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:35,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:35,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:35,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:35,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:06:35,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:35,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:35,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:35,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:06:35,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:35,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:06:35,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:35,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:35,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:35,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:35,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:35,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:06:35,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:35,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:35,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:35,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:06:35,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:35,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:06:35,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:35,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:35,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:35,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:35,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:35,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:06:35,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:35,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:35,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:35,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:06:35,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:35,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:06:35,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:35,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:35,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:35,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:35,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:35,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:06:35,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:35,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:35,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:35,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:06:35,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:35,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:06:35,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:35,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:06:35,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:35,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:06:35,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:35,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:06:35,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:06:35,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:06:35,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:06:35,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 06:06:35,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:06:35,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 06:06:35,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:06:35,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:06:35,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:06:35,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 06:06:35,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:06:35,816 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 204 proven. 5 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2020-10-13 06:06:35,816 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1529523867] [2020-10-13 06:06:35,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:06:35,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:06:35,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327335823] [2020-10-13 06:06:35,817 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:06:35,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:06:35,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:06:35,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:06:35,818 INFO L87 Difference]: Start difference. First operand 1455 states and 1539 transitions. Second operand 7 states. [2020-10-13 06:06:36,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:06:36,794 INFO L93 Difference]: Finished difference Result 1535 states and 1620 transitions. [2020-10-13 06:06:36,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:06:36,795 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 303 [2020-10-13 06:06:36,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:06:36,797 INFO L225 Difference]: With dead ends: 1535 [2020-10-13 06:06:36,797 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 06:06:36,801 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-13 06:06:36,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 06:06:36,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 06:06:36,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 06:06:36,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 06:06:36,802 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 303 [2020-10-13 06:06:36,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:06:36,802 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 06:06:36,802 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:06:36,802 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 06:06:36,802 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 06:06:36,803 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 06:06:36,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 06:06:37,588 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 224 [2020-10-13 06:06:37,803 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 229 [2020-10-13 06:06:40,411 WARN L193 SmtUtils]: Spent 2.47 s on a formula simplification. DAG size of input: 337 DAG size of output: 175 [2020-10-13 06:06:41,416 WARN L193 SmtUtils]: Spent 960.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 126 [2020-10-13 06:06:42,381 WARN L193 SmtUtils]: Spent 962.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 95 [2020-10-13 06:06:42,385 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:06:42,386 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~a16~0 |old(~a16~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-13 06:06:42,386 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:06:42,386 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-10-13 06:06:42,386 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-10-13 06:06:42,386 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,386 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,386 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,386 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,387 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,387 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,387 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-10-13 06:06:42,387 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-10-13 06:06:42,387 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-10-13 06:06:42,387 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-10-13 06:06:42,387 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-10-13 06:06:42,387 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-10-13 06:06:42,387 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-10-13 06:06:42,388 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-10-13 06:06:42,388 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-10-13 06:06:42,388 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-10-13 06:06:42,388 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,388 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,388 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,388 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,388 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,388 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,389 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-10-13 06:06:42,389 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-10-13 06:06:42,389 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-10-13 06:06:42,389 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-10-13 06:06:42,389 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-10-13 06:06:42,389 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-10-13 06:06:42,389 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-10-13 06:06:42,389 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-10-13 06:06:42,390 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-10-13 06:06:42,390 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-10-13 06:06:42,390 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-10-13 06:06:42,390 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 431) no Hoare annotation was computed. [2020-10-13 06:06:42,390 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-10-13 06:06:42,390 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-10-13 06:06:42,391 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-10-13 06:06:42,391 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-10-13 06:06:42,391 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,391 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,391 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,391 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,391 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,391 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-10-13 06:06:42,391 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-10-13 06:06:42,391 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-10-13 06:06:42,392 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-10-13 06:06:42,392 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-10-13 06:06:42,392 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-10-13 06:06:42,392 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-10-13 06:06:42,392 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-10-13 06:06:42,392 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-10-13 06:06:42,392 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,392 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,392 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,393 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,393 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,393 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-10-13 06:06:42,393 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-10-13 06:06:42,393 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-10-13 06:06:42,393 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-10-13 06:06:42,393 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-10-13 06:06:42,393 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-10-13 06:06:42,393 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-10-13 06:06:42,394 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-10-13 06:06:42,394 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-10-13 06:06:42,394 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-10-13 06:06:42,394 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-10-13 06:06:42,394 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-10-13 06:06:42,394 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-10-13 06:06:42,394 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,394 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,394 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,395 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,395 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,395 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-10-13 06:06:42,395 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-10-13 06:06:42,395 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-10-13 06:06:42,395 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-10-13 06:06:42,395 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-10-13 06:06:42,395 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-10-13 06:06:42,396 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-10-13 06:06:42,396 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-10-13 06:06:42,396 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-10-13 06:06:42,396 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,396 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,396 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,396 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,396 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,397 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,397 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-10-13 06:06:42,397 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,397 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-10-13 06:06:42,397 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-10-13 06:06:42,397 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-10-13 06:06:42,397 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-10-13 06:06:42,397 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-10-13 06:06:42,398 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-10-13 06:06:42,398 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-10-13 06:06:42,398 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-10-13 06:06:42,398 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-10-13 06:06:42,398 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-10-13 06:06:42,398 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-10-13 06:06:42,398 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-10-13 06:06:42,398 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-10-13 06:06:42,398 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,399 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,399 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,399 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,399 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,399 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-10-13 06:06:42,399 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-10-13 06:06:42,399 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-10-13 06:06:42,399 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-10-13 06:06:42,399 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-10-13 06:06:42,399 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-10-13 06:06:42,400 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-10-13 06:06:42,400 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-10-13 06:06:42,400 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,400 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,400 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,400 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,400 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,400 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-10-13 06:06:42,401 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-10-13 06:06:42,401 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-10-13 06:06:42,401 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-10-13 06:06:42,401 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-10-13 06:06:42,401 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-10-13 06:06:42,401 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-10-13 06:06:42,401 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-10-13 06:06:42,401 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-10-13 06:06:42,401 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-10-13 06:06:42,402 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse2 (= ~a17~0 |old(~a17~0)|)) (.cse1 (= ~a7~0 |old(~a7~0)|)) (.cse29 (= ~a21~0 |old(~a21~0)|)) (.cse4 (= ~a20~0 |old(~a20~0)|)) (.cse24 (= ~a16~0 |old(~a16~0)|)) (.cse25 (= ~a8~0 |old(~a8~0)|)) (.cse23 (= 5 |old(~a16~0)|)) (.cse14 (not (= |calculate_output_#in~input| 3))) (.cse15 (not (= |calculate_output_#in~input| 2))) (.cse17 (not (= |calculate_output_#in~input| 4))) (.cse19 (not (= |calculate_output_#in~input| 6))) (.cse22 (= 4 |old(~a16~0)|))) (let ((.cse0 (not (= |old(~a17~0)| |old(~a20~0)|))) (.cse10 (not .cse22)) (.cse16 (or (not (<= |calculate_output_#in~input| 5)) (not (<= 5 |calculate_output_#in~input|)))) (.cse18 (or (not (<= 1 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 1)))) (.cse5 (= ~a8~0 15)) (.cse6 (and .cse14 .cse15 .cse17 (not (= |calculate_output_#in~input| 1)) (not (= |calculate_output_#in~input| 5)) .cse19)) (.cse7 (not (= 15 |old(~a8~0)|))) (.cse11 (not (= 0 |old(~a17~0)|))) (.cse3 (= ~a21~0 1)) (.cse26 (not (<= 1 |old(~a17~0)|))) (.cse27 (not (<= |old(~a17~0)| 1))) (.cse12 (not (= 14 |old(~a8~0)|))) (.cse28 (not (<= |old(~a17~0)| 0))) (.cse20 (not .cse23)) (.cse8 (not (= |old(~a21~0)| 1))) (.cse9 (not (= ~a12~0 8))) (.cse21 (not (= |old(~a7~0)| 1))) (.cse13 (and .cse2 .cse1 .cse29 .cse4 .cse24 .cse25))) (and (or .cse0 (and .cse1 .cse2 .cse3 .cse4 .cse5 (= ~a16~0 4)) .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (or .cse12 (not (= |old(~a7~0)| |old(~a17~0)|)) .cse0 .cse13 .cse8 .cse9 .cse10 .cse11) (or (and .cse1 .cse2 .cse4 .cse3 .cse5 (= 5 ~a16~0)) (and .cse14 .cse15 .cse16 .cse17 .cse18 .cse19) .cse20 .cse7 .cse8 .cse9) (or .cse21 .cse13 .cse8) (or (not (= |old(~a17~0)| 1)) .cse22 .cse23 (and .cse1 .cse2 .cse3 .cse4 .cse24 .cse25) .cse8) (or (not (= |old(~a20~0)| |old(~a21~0)|)) .cse8 (and .cse2 .cse1 .cse4 .cse24 .cse25 (= ~a21~0 ~a20~0))) (or (and .cse16 (or (not (<= 4 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 4))) (or (not (<= |calculate_output_#in~input| 2)) (not (<= 2 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 3)) (not (<= 3 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 6)) (not (<= 6 |calculate_output_#in~input|))) .cse18) .cse26 (and .cse1 .cse3 .cse4 .cse24 .cse25 (= ~a17~0 1)) .cse27 .cse7 .cse8 .cse9) (or (not (= 6 |old(~a16~0)|)) (and .cse1 .cse2 .cse3 .cse4 .cse24 .cse5) .cse6 .cse7 .cse8 .cse9 .cse11) (or (not (<= 4 |old(~a16~0)|)) (not (<= |old(~a21~0)| 1)) (and .cse1 .cse2 .cse3 .cse4 (<= ~a16~0 4) .cse25 (<= 4 ~a16~0)) (not (<= 1 |old(~a21~0)|)) (not (<= |old(~a8~0)| 13)) (not (<= |old(~a16~0)| 4)) (not (<= 13 |old(~a8~0)|)) (and (not (< 1 |old(~a17~0)|)) .cse28) .cse9) (or (not (<= |old(~a16~0)| 5)) .cse26 .cse21 .cse27 (and .cse1 (<= 1 ~a17~0) .cse29 .cse4 .cse24 .cse25 (<= ~a17~0 1))) (or (not (<= |old(~a17~0)| |old(~a7~0)|)) (not (< |old(~a20~0)| (+ |old(~a17~0)| 1))) .cse12 (not (<= |old(~a7~0)| |old(~a17~0)|)) .cse13 .cse28 .cse20 (not (<= |old(~a17~0)| |old(~a20~0)|)) .cse8 .cse9) (or .cse21 (not (= |old(~a20~0)| 1)) .cse13)))) [2020-10-13 06:06:42,402 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-10-13 06:06:42,402 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,403 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,403 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,403 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,403 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-10-13 06:06:42,403 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,403 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,403 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-10-13 06:06:42,403 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-10-13 06:06:42,403 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-10-13 06:06:42,403 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-10-13 06:06:42,404 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-10-13 06:06:42,404 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-10-13 06:06:42,404 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-10-13 06:06:42,404 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-10-13 06:06:42,404 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-10-13 06:06:42,404 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-10-13 06:06:42,404 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-10-13 06:06:42,404 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-10-13 06:06:42,404 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,405 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,405 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,405 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,405 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,405 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-10-13 06:06:42,405 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,405 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-10-13 06:06:42,405 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-10-13 06:06:42,405 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-10-13 06:06:42,405 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-10-13 06:06:42,406 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-10-13 06:06:42,406 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-10-13 06:06:42,406 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-10-13 06:06:42,406 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-10-13 06:06:42,406 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-10-13 06:06:42,406 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-10-13 06:06:42,406 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-10-13 06:06:42,406 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-10-13 06:06:42,407 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-10-13 06:06:42,407 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-10-13 06:06:42,407 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,407 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,407 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,407 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,407 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,407 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:06:42,407 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-10-13 06:06:42,408 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-10-13 06:06:42,408 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-10-13 06:06:42,408 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-10-13 06:06:42,408 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-10-13 06:06:42,408 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-10-13 06:06:42,408 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-10-13 06:06:42,408 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-10-13 06:06:42,408 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-10-13 06:06:42,408 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-10-13 06:06:42,408 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:06:42,409 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a12~0 8) (= ~a8~0 15) (<= ~a7~0 0) (= ~a20~0 1) (= ~a21~0 ~a20~0) (= 5 ~a16~0) (= ~a17~0 1)) [2020-10-13 06:06:42,409 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 06:06:42,409 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:06:42,409 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (not (<= |old(~a7~0)| 0)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 15) (= ~a21~0 ~a20~0)) (not (= |old(~a20~0)| |old(~a21~0)|)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1)) (not (= 15 |old(~a8~0)|)) (not (= ~a12~0 8))) [2020-10-13 06:06:42,409 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-10-13 06:06:42,410 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse16 (= 6 main_~input~0)) (.cse17 (= main_~input~0 4)) (.cse18 (= 3 main_~input~0)) (.cse19 (= 2 main_~input~0)) (.cse8 (= ~a8~0 15))) (let ((.cse2 (= ~a17~0 1)) (.cse15 (= ~a20~0 1)) (.cse0 (<= ~a21~0 1)) (.cse1 (<= 1 ~a21~0)) (.cse4 (= 5 ~a16~0)) (.cse6 (= ~a7~0 1)) (.cse13 (<= ~a17~0 0)) (.cse10 (= 14 ~a8~0)) (.cse11 (not .cse8)) (.cse12 (not (= |old(~a7~0)| 1))) (.cse14 (or (<= |old(~a21~0)| 0) (and (<= 15 |old(~a8~0)|) (<= |old(~a8~0)| 15)) (<= 2 |old(~a21~0)|))) (.cse20 (= ~a20~0 ~a17~0)) (.cse3 (= ~a21~0 1)) (.cse7 (or (= 5 main_~input~0) .cse16 .cse17 .cse18 (= main_~input~0 1) .cse19)) (.cse5 (= ~a16~0 4)) (.cse9 (= ~a17~0 0))) (or (not (<= |old(~a7~0)| 0)) (and (or (and (<= 4 main_~input~0) (<= main_~input~0 4)) (and (<= 2 main_~input~0) (<= main_~input~0 2)) (and (<= 6 main_~input~0) (<= main_~input~0 6)) (and (<= main_~input~0 3) (<= 3 main_~input~0)) (and (<= main_~input~0 1) (<= 1 main_~input~0)) (and (<= main_~input~0 5) (<= 5 main_~input~0))) .cse0 .cse1 (<= ~a8~0 15) (<= 15 ~a8~0) .cse2) (and .cse3 (not .cse4) (not .cse5) .cse2) (and .cse3 .cse6) (and .cse3 (= ~a16~0 6) .cse7 .cse8 .cse9) (and .cse3 .cse10 .cse11 .cse12 (<= ~a17~0 ~a20~0) .cse13 (<= ~a17~0 ~a7~0) (< ~a20~0 (+ ~a17~0 1)) (<= ~a7~0 ~a17~0) .cse4 .cse14) (and .cse6 .cse15) (not (= |old(~a21~0)| 1)) (and .cse15 (= ~a21~0 ~a20~0)) (and (or .cse16 (= ~a16~0 main_~input~0) .cse17 .cse18 (= ~a21~0 main_~input~0) .cse19) .cse8 .cse0 .cse1 .cse4) (not (= |old(~a17~0)| 1)) (and (<= 1 ~a17~0) .cse6 (<= ~a16~0 5) (<= ~a17~0 1)) (and (<= 13 ~a8~0) .cse3 .cse11 (<= ~a16~0 4) .cse12 (<= 4 ~a16~0) (or .cse13 (< 1 ~a17~0)) .cse14 (<= ~a8~0 13)) (and .cse20 .cse3 .cse10 .cse11 .cse12 .cse5 (= ~a17~0 ~a7~0) .cse14 .cse9) (not (= |old(~a20~0)| |old(~a21~0)|)) (not (= 5 |old(~a16~0)|)) (and .cse20 .cse3 .cse7 .cse8 .cse5 .cse9) (not (= 15 |old(~a8~0)|)) (not (= ~a12~0 8))))) [2020-10-13 06:06:42,410 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-10-13 06:06:42,410 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-13 06:06:42,410 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse1 (= ~a8~0 15))) (let ((.cse5 (= ~a17~0 1)) (.cse3 (= 5 ~a16~0)) (.cse13 (= ~a20~0 1)) (.cse6 (= ~a7~0 1)) (.cse11 (<= ~a17~0 0)) (.cse7 (= ~a20~0 ~a17~0)) (.cse0 (= ~a21~0 1)) (.cse8 (= 14 ~a8~0)) (.cse9 (not .cse1)) (.cse10 (not (= |old(~a7~0)| 1))) (.cse4 (= ~a16~0 4)) (.cse12 (or (<= |old(~a21~0)| 0) (and (<= 15 |old(~a8~0)|) (<= |old(~a8~0)| 15)) (<= 2 |old(~a21~0)|))) (.cse2 (= ~a17~0 0))) (or (and .cse0 (= ~a16~0 6) .cse1 .cse2) (and .cse0 .cse1 .cse3) (not (<= |old(~a7~0)| 0)) (and .cse0 (not .cse3) (not .cse4) .cse5) (and .cse0 .cse6) (and (<= ~a21~0 1) (<= 1 ~a21~0) (<= ~a8~0 15) (<= 15 ~a8~0) .cse5) (and .cse7 .cse0 .cse1 .cse4 .cse2) (and .cse0 .cse8 .cse9 .cse10 (<= ~a17~0 ~a20~0) .cse11 (<= ~a17~0 ~a7~0) (< ~a20~0 (+ ~a17~0 1)) (<= ~a7~0 ~a17~0) .cse3 .cse12) (and .cse6 .cse13) (not (= |old(~a21~0)| 1)) (and .cse13 (= ~a21~0 ~a20~0)) (not (= |old(~a17~0)| 1)) (and (<= 1 ~a17~0) .cse6 (<= ~a16~0 5) (<= ~a17~0 1)) (and (<= 13 ~a8~0) .cse0 .cse9 (<= ~a16~0 4) .cse10 (<= 4 ~a16~0) (or .cse11 (< 1 ~a17~0)) .cse12 (<= ~a8~0 13)) (and .cse7 .cse0 .cse8 .cse9 .cse10 .cse4 (= ~a17~0 ~a7~0) .cse12 .cse2) (not (= |old(~a20~0)| |old(~a21~0)|)) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (not (= ~a12~0 8))))) [2020-10-13 06:06:42,411 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-10-13 06:06:42,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:06:42 BoogieIcfgContainer [2020-10-13 06:06:42,441 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 06:06:42,442 INFO L168 Benchmark]: Toolchain (without parser) took 114532.91 ms. Allocated memory was 140.0 MB in the beginning and 1.4 GB in the end (delta: 1.3 GB). Free memory was 101.5 MB in the beginning and 524.8 MB in the end (delta: -423.3 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2020-10-13 06:06:42,443 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-13 06:06:42,444 INFO L168 Benchmark]: CACSL2BoogieTranslator took 757.10 ms. Allocated memory was 140.0 MB in the beginning and 205.0 MB in the end (delta: 65.0 MB). Free memory was 101.2 MB in the beginning and 171.1 MB in the end (delta: -69.9 MB). Peak memory consumption was 35.6 MB. Max. memory is 7.1 GB. [2020-10-13 06:06:42,444 INFO L168 Benchmark]: Boogie Preprocessor took 103.17 ms. Allocated memory is still 205.0 MB. Free memory was 171.1 MB in the beginning and 166.2 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-10-13 06:06:42,445 INFO L168 Benchmark]: RCFGBuilder took 1244.88 ms. Allocated memory was 205.0 MB in the beginning and 239.1 MB in the end (delta: 34.1 MB). Free memory was 166.2 MB in the beginning and 178.8 MB in the end (delta: -12.5 MB). Peak memory consumption was 82.0 MB. Max. memory is 7.1 GB. [2020-10-13 06:06:42,445 INFO L168 Benchmark]: TraceAbstraction took 112422.95 ms. Allocated memory was 239.1 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 178.8 MB in the beginning and 524.8 MB in the end (delta: -346.0 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2020-10-13 06:06:42,448 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 757.10 ms. Allocated memory was 140.0 MB in the beginning and 205.0 MB in the end (delta: 65.0 MB). Free memory was 101.2 MB in the beginning and 171.1 MB in the end (delta: -69.9 MB). Peak memory consumption was 35.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 103.17 ms. Allocated memory is still 205.0 MB. Free memory was 171.1 MB in the beginning and 166.2 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1244.88 ms. Allocated memory was 205.0 MB in the beginning and 239.1 MB in the end (delta: 34.1 MB). Free memory was 166.2 MB in the beginning and 178.8 MB in the end (delta: -12.5 MB). Peak memory consumption was 82.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 112422.95 ms. Allocated memory was 239.1 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 178.8 MB in the beginning and 524.8 MB in the end (delta: -346.0 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 431]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: ((((((((((((((((((((a21 == 1 && a16 == 6) && a8 == 15) && a17 == 0) || ((a21 == 1 && a8 == 15) && 5 == a16)) || !(\old(a7) <= 0)) || (((a21 == 1 && !(5 == a16)) && !(a16 == 4)) && a17 == 1)) || (a21 == 1 && a7 == 1)) || ((((a21 <= 1 && 1 <= a21) && a8 <= 15) && 15 <= a8) && a17 == 1)) || ((((a20 == a17 && a21 == 1) && a8 == 15) && a16 == 4) && a17 == 0)) || ((((((((((a21 == 1 && 14 == a8) && !(a8 == 15)) && !(\old(a7) == 1)) && a17 <= a20) && a17 <= 0) && a17 <= a7) && a20 < a17 + 1) && a7 <= a17) && 5 == a16) && ((\old(a21) <= 0 || (15 <= \old(a8) && \old(a8) <= 15)) || 2 <= \old(a21)))) || (a7 == 1 && a20 == 1)) || !(\old(a21) == 1)) || (a20 == 1 && a21 == a20)) || !(\old(a17) == 1)) || (((1 <= a17 && a7 == 1) && a16 <= 5) && a17 <= 1)) || ((((((((13 <= a8 && a21 == 1) && !(a8 == 15)) && a16 <= 4) && !(\old(a7) == 1)) && 4 <= a16) && (a17 <= 0 || 1 < a17)) && ((\old(a21) <= 0 || (15 <= \old(a8) && \old(a8) <= 15)) || 2 <= \old(a21))) && a8 <= 13)) || ((((((((a20 == a17 && a21 == 1) && 14 == a8) && !(a8 == 15)) && !(\old(a7) == 1)) && a16 == 4) && a17 == a7) && ((\old(a21) <= 0 || (15 <= \old(a8) && \old(a8) <= 15)) || 2 <= \old(a21))) && a17 == 0)) || !(\old(a20) == \old(a21))) || !(5 == \old(a16))) || !(15 == \old(a8))) || !(a12 == 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 106.7s, OverallIterations: 20, TraceHistogramMax: 6, AutomataDifference: 38.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 529 SDtfs, 8326 SDslu, 799 SDs, 0 SdLazy, 16561 SolverSat, 1332 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 483 GetRequests, 208 SyntacticMatches, 10 SemanticMatches, 265 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 662 ImplicationChecksByTransitivity, 21.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1714occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 20 MinimizatonAttempts, 864 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 176 PreInvPairs, 220 NumberOfFragments, 1392 HoareAnnotationTreeSize, 176 FomulaSimplifications, 8529 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 7 FomulaSimplificationsInter, 8704 FormulaSimplificationTreeSizeReductionInter, 4.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 64.4s InterpolantComputationTime, 3478 NumberOfCodeBlocks, 3478 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 3458 ConstructedInterpolants, 0 QuantifiedInterpolants, 6435052 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 1 PerfectInterpolantSequences, 2700/2791 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...