/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=BIGGEST --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_label15.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 11:04:27,643 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 11:04:27,647 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 11:04:27,687 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 11:04:27,688 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 11:04:27,696 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 11:04:27,698 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 11:04:27,700 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 11:04:27,703 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 11:04:27,706 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 11:04:27,707 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 11:04:27,709 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 11:04:27,709 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 11:04:27,712 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 11:04:27,715 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 11:04:27,717 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 11:04:27,719 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 11:04:27,720 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 11:04:27,721 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 11:04:27,727 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 11:04:27,730 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 11:04:27,732 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 11:04:27,733 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 11:04:27,734 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 11:04:27,744 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 11:04:27,744 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 11:04:27,745 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 11:04:27,748 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 11:04:27,748 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 11:04:27,749 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 11:04:27,749 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 11:04:27,750 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 11:04:27,752 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 11:04:27,753 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 11:04:27,753 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 11:04:27,754 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 11:04:27,754 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 11:04:27,755 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 11:04:27,755 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 11:04:27,756 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 11:04:27,757 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 11:04:27,758 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 [2020-10-12 11:04:27,798 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 11:04:27,798 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 11:04:27,800 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 11:04:27,800 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 11:04:27,800 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 11:04:27,801 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 11:04:27,801 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 11:04:27,801 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 11:04:27,801 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 11:04:27,801 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 11:04:27,803 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 11:04:27,803 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 11:04:27,803 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 11:04:27,804 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 11:04:27,804 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 11:04:27,804 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 11:04:27,804 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 11:04:27,805 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 11:04:27,805 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 11:04:27,805 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 11:04:27,805 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 11:04:27,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 11:04:27,806 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 11:04:27,806 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 11:04:27,806 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 11:04:27,806 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 11:04:27,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 11:04:27,806 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 11:04:27,807 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 11:04:27,807 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 11:04:28,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 11:04:28,115 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 11:04:28,118 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 11:04:28,121 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 11:04:28,122 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 11:04:28,122 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label15.c [2020-10-12 11:04:28,186 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7101f197f/ad53881600c34456a9e1905542058bce/FLAGc26719d51 [2020-10-12 11:04:28,777 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 11:04:28,780 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label15.c [2020-10-12 11:04:28,804 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7101f197f/ad53881600c34456a9e1905542058bce/FLAGc26719d51 [2020-10-12 11:04:29,070 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7101f197f/ad53881600c34456a9e1905542058bce [2020-10-12 11:04:29,080 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 11:04:29,082 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 11:04:29,084 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 11:04:29,085 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 11:04:29,088 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 11:04:29,089 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:04:29" (1/1) ... [2020-10-12 11:04:29,092 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6698ff07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:04:29, skipping insertion in model container [2020-10-12 11:04:29,093 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:04:29" (1/1) ... [2020-10-12 11:04:29,100 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 11:04:29,162 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 11:04:29,723 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 11:04:29,731 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 11:04:29,914 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 11:04:29,932 INFO L208 MainTranslator]: Completed translation [2020-10-12 11:04:29,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:04:29 WrapperNode [2020-10-12 11:04:29,932 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 11:04:29,933 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 11:04:29,933 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 11:04:29,934 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 11:04:29,948 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:04:29" (1/1) ... [2020-10-12 11:04:29,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:04:29" (1/1) ... [2020-10-12 11:04:29,969 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:04:29" (1/1) ... [2020-10-12 11:04:29,970 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:04:29" (1/1) ... [2020-10-12 11:04:30,015 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:04:29" (1/1) ... [2020-10-12 11:04:30,032 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:04:29" (1/1) ... [2020-10-12 11:04:30,037 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:04:29" (1/1) ... [2020-10-12 11:04:30,044 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 11:04:30,044 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 11:04:30,045 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 11:04:30,045 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 11:04:30,046 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:04:29" (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 [2020-10-12 11:04:30,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 11:04:30,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 11:04:30,104 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 11:04:30,104 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 11:04:30,104 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 11:04:30,104 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 11:04:30,104 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 11:04:30,104 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 11:04:30,104 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 11:04:30,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 11:04:30,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 11:04:31,316 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 11:04:31,317 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 11:04:31,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:04:31 BoogieIcfgContainer [2020-10-12 11:04:31,331 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 11:04:31,334 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 11:04:31,335 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 11:04:31,338 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 11:04:31,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 11:04:29" (1/3) ... [2020-10-12 11:04:31,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27b36f40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:04:31, skipping insertion in model container [2020-10-12 11:04:31,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:04:29" (2/3) ... [2020-10-12 11:04:31,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27b36f40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 11:04:31, skipping insertion in model container [2020-10-12 11:04:31,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:04:31" (3/3) ... [2020-10-12 11:04:31,343 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label15.c [2020-10-12 11:04:31,356 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 11:04:31,371 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 11:04:31,390 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 11:04:31,429 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 11:04:31,430 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 11:04:31,431 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 11:04:31,431 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 11:04:31,431 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 11:04:31,431 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 11:04:31,431 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 11:04:31,432 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 11:04:31,461 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-12 11:04:31,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-12 11:04:31,479 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:04:31,481 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] [2020-10-12 11:04:31,481 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:04:31,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:04:31,489 INFO L82 PathProgramCache]: Analyzing trace with hash 78510191, now seen corresponding path program 1 times [2020-10-12 11:04:31,498 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:04:31,499 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1862855051] [2020-10-12 11:04:31,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:04:31,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:31,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:32,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:33,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:33,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-12 11:04:33,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:04:33,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1470 [2020-10-12 11:04:33,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:33,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 11:04:33,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:04:33,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-12 11:04:33,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 11:04:33,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:04:33,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:33,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:33,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:33,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:04:33,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:33,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 11:04:33,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:33,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:04:33,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:33,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:04:33,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:33,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 11:04:33,999 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1862855051] [2020-10-12 11:04:34,001 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 11:04:34,001 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 11:04:34,002 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304134727] [2020-10-12 11:04:34,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 11:04:34,008 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:04:34,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 11:04:34,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-12 11:04:34,025 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 12 states. [2020-10-12 11:04:34,377 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-12 11:04:34,542 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-12 11:04:34,739 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-12 11:04:35,020 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2020-10-12 11:04:35,271 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2020-10-12 11:04:35,659 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2020-10-12 11:04:36,176 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2020-10-12 11:04:36,464 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 84 [2020-10-12 11:04:37,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:04:37,447 INFO L93 Difference]: Finished difference Result 474 states and 793 transitions. [2020-10-12 11:04:37,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 11:04:37,449 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 87 [2020-10-12 11:04:37,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:04:37,463 INFO L225 Difference]: With dead ends: 474 [2020-10-12 11:04:37,463 INFO L226 Difference]: Without dead ends: 205 [2020-10-12 11:04:37,470 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2020-10-12 11:04:37,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-12 11:04:37,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2020-10-12 11:04:37,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-12 11:04:37,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 277 transitions. [2020-10-12 11:04:37,543 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 277 transitions. Word has length 87 [2020-10-12 11:04:37,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:04:37,544 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 277 transitions. [2020-10-12 11:04:37,544 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 11:04:37,545 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 277 transitions. [2020-10-12 11:04:37,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-12 11:04:37,550 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:04:37,550 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] [2020-10-12 11:04:37,550 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 11:04:37,551 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:04:37,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:04:37,551 INFO L82 PathProgramCache]: Analyzing trace with hash 778987316, now seen corresponding path program 1 times [2020-10-12 11:04:37,551 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:04:37,552 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1467979789] [2020-10-12 11:04:37,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:04:37,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:37,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:37,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:37,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:38,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:38,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-12 11:04:38,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:04:38,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1087 [2020-10-12 11:04:38,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:38,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:04:38,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 11:04:38,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 11:04:38,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:39,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:04:39,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:39,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:39,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:39,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:04:39,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:39,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:04:39,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:39,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:04:39,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:39,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:04:39,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:39,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:04:39,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:39,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:39,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:39,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:04:39,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:39,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 11:04:39,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:39,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:04:39,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:39,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 11:04:39,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:39,314 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 11:04:39,315 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1467979789] [2020-10-12 11:04:39,315 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:04:39,315 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:04:39,316 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220272646] [2020-10-12 11:04:39,317 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:04:39,318 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:04:39,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:04:39,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:04:39,319 INFO L87 Difference]: Start difference. First operand 205 states and 277 transitions. Second operand 13 states. [2020-10-12 11:04:40,150 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-12 11:04:40,836 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-12 11:04:41,176 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-12 11:04:41,568 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-12 11:04:41,805 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-12 11:04:42,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:04:42,404 INFO L93 Difference]: Finished difference Result 433 states and 637 transitions. [2020-10-12 11:04:42,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 11:04:42,405 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 95 [2020-10-12 11:04:42,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:04:42,409 INFO L225 Difference]: With dead ends: 433 [2020-10-12 11:04:42,410 INFO L226 Difference]: Without dead ends: 294 [2020-10-12 11:04:42,411 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=164, Invalid=388, Unknown=0, NotChecked=0, Total=552 [2020-10-12 11:04:42,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-10-12 11:04:42,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 276. [2020-10-12 11:04:42,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-12 11:04:42,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 355 transitions. [2020-10-12 11:04:42,437 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 355 transitions. Word has length 95 [2020-10-12 11:04:42,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:04:42,438 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 355 transitions. [2020-10-12 11:04:42,438 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:04:42,438 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 355 transitions. [2020-10-12 11:04:42,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-12 11:04:42,441 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:04:42,441 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] [2020-10-12 11:04:42,442 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 11:04:42,442 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:04:42,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:04:42,442 INFO L82 PathProgramCache]: Analyzing trace with hash -758839946, now seen corresponding path program 1 times [2020-10-12 11:04:42,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:04:42,443 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1542124303] [2020-10-12 11:04:42,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:04:42,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:42,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:42,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:43,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:43,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-12 11:04:43,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:04:43,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 749 [2020-10-12 11:04:43,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:43,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 11:04:43,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:04:43,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-12 11:04:43,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:43,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:04:43,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:43,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:43,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:43,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:04:43,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:43,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 11:04:43,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:43,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:04:43,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:43,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:04:43,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:04:43,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:04:43,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:43,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:43,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:43,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:43,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:04:43,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:04:43,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 11:04:43,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:43,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:04:43,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:04:43,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 11:04:43,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:04:43,451 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-12 11:04:43,452 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1542124303] [2020-10-12 11:04:43,452 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:04:43,453 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 11:04:43,453 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275845192] [2020-10-12 11:04:43,454 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 11:04:43,454 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:04:43,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 11:04:43,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:04:43,455 INFO L87 Difference]: Start difference. First operand 276 states and 355 transitions. Second operand 6 states. [2020-10-12 11:04:44,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:04:44,392 INFO L93 Difference]: Finished difference Result 627 states and 853 transitions. [2020-10-12 11:04:44,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 11:04:44,393 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 98 [2020-10-12 11:04:44,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:04:44,399 INFO L225 Difference]: With dead ends: 627 [2020-10-12 11:04:44,399 INFO L226 Difference]: Without dead ends: 417 [2020-10-12 11:04:44,400 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-12 11:04:44,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2020-10-12 11:04:44,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 415. [2020-10-12 11:04:44,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2020-10-12 11:04:44,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 548 transitions. [2020-10-12 11:04:44,440 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 548 transitions. Word has length 98 [2020-10-12 11:04:44,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:04:44,442 INFO L479 AbstractCegarLoop]: Abstraction has 415 states and 548 transitions. [2020-10-12 11:04:44,442 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 11:04:44,442 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 548 transitions. [2020-10-12 11:04:44,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-12 11:04:44,454 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:04:44,457 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] [2020-10-12 11:04:44,457 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 11:04:44,457 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:04:44,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:04:44,458 INFO L82 PathProgramCache]: Analyzing trace with hash 1064055179, now seen corresponding path program 1 times [2020-10-12 11:04:44,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:04:44,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [308405992] [2020-10-12 11:04:44,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:04:44,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:44,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:44,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:44,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:46,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:47,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:47,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 11:04:47,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:04:47,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3429 [2020-10-12 11:04:47,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:47,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:04:47,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-12 11:04:47,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 11:04:47,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:48,463 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 39 [2020-10-12 11:04:48,582 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 38 [2020-10-12 11:04:48,710 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 36 [2020-10-12 11:04:49,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:04:49,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:49,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:49,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:49,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:04:49,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:49,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:04:49,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:49,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:04:49,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:49,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:04:49,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:49,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:04:49,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:49,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:49,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:49,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:04:49,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:49,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:04:49,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:49,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:04:49,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:49,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:04:49,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:49,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:04:49,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:49,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:49,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:49,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 11:04:49,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:49,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 11:04:49,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:49,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:04:49,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:49,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 11:04:49,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:49,180 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-12 11:04:49,181 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [308405992] [2020-10-12 11:04:49,181 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:04:49,181 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:04:49,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757027880] [2020-10-12 11:04:49,182 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:04:49,183 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:04:49,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:04:49,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:04:49,184 INFO L87 Difference]: Start difference. First operand 415 states and 548 transitions. Second operand 13 states. [2020-10-12 11:04:50,020 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2020-10-12 11:04:50,292 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 89 [2020-10-12 11:04:50,544 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2020-10-12 11:04:51,119 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 87 [2020-10-12 11:04:51,587 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 85 [2020-10-12 11:04:52,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:04:52,117 INFO L93 Difference]: Finished difference Result 843 states and 1178 transitions. [2020-10-12 11:04:52,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 11:04:52,118 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 107 [2020-10-12 11:04:52,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:04:52,123 INFO L225 Difference]: With dead ends: 843 [2020-10-12 11:04:52,123 INFO L226 Difference]: Without dead ends: 494 [2020-10-12 11:04:52,125 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-10-12 11:04:52,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2020-10-12 11:04:52,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 490. [2020-10-12 11:04:52,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2020-10-12 11:04:52,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 632 transitions. [2020-10-12 11:04:52,146 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 632 transitions. Word has length 107 [2020-10-12 11:04:52,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:04:52,147 INFO L479 AbstractCegarLoop]: Abstraction has 490 states and 632 transitions. [2020-10-12 11:04:52,147 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:04:52,147 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 632 transitions. [2020-10-12 11:04:52,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-12 11:04:52,150 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:04:52,150 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:04:52,150 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 11:04:52,151 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:04:52,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:04:52,151 INFO L82 PathProgramCache]: Analyzing trace with hash -402195821, now seen corresponding path program 1 times [2020-10-12 11:04:52,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:04:52,152 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2100942533] [2020-10-12 11:04:52,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:04:52,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:52,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:52,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:52,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:52,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:53,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:54,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:54,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 11:04:54,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:04:54,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2491 [2020-10-12 11:04:54,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:54,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:04:54,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-12 11:04:54,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 11:04:54,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:55,163 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2020-10-12 11:04:55,286 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 43 [2020-10-12 11:04:55,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:04:55,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:55,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:55,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:55,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:04:55,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:55,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:04:55,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:55,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:04:55,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:55,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:04:55,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 11:04:55,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:04:55,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:55,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:55,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:55,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:04:55,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:55,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 11:04:55,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:55,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:04:55,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:55,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:04:55,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 11:04:55,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:04:55,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:55,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:55,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:04:55,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-12 11:04:55,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:04:55,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 11:04:55,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:04:55,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:04:55,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:04:55,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 11:04:55,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:04:55,903 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-12 11:04:55,903 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2100942533] [2020-10-12 11:04:55,904 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:04:55,904 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:04:55,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009405364] [2020-10-12 11:04:55,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:04:55,905 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:04:55,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:04:55,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:04:55,906 INFO L87 Difference]: Start difference. First operand 490 states and 632 transitions. Second operand 13 states. [2020-10-12 11:04:56,448 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 11:04:56,788 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 113 [2020-10-12 11:04:57,093 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 110 [2020-10-12 11:04:57,402 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 107 [2020-10-12 11:04:57,881 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 104 [2020-10-12 11:04:58,404 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 99 [2020-10-12 11:04:58,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:04:58,926 INFO L93 Difference]: Finished difference Result 989 states and 1342 transitions. [2020-10-12 11:04:58,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 11:04:58,931 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 111 [2020-10-12 11:04:58,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:04:58,935 INFO L225 Difference]: With dead ends: 989 [2020-10-12 11:04:58,936 INFO L226 Difference]: Without dead ends: 565 [2020-10-12 11:04:58,938 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-10-12 11:04:58,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2020-10-12 11:04:58,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 488. [2020-10-12 11:04:58,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 488 states. [2020-10-12 11:04:58,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 629 transitions. [2020-10-12 11:04:58,962 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 629 transitions. Word has length 111 [2020-10-12 11:04:58,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:04:58,962 INFO L479 AbstractCegarLoop]: Abstraction has 488 states and 629 transitions. [2020-10-12 11:04:58,963 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:04:58,963 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 629 transitions. [2020-10-12 11:04:58,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-12 11:04:58,965 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:04:58,965 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:04:58,966 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 11:04:58,966 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:04:58,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:04:58,967 INFO L82 PathProgramCache]: Analyzing trace with hash -1417444453, now seen corresponding path program 1 times [2020-10-12 11:04:58,967 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:04:58,967 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1746565521] [2020-10-12 11:04:58,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:04:58,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:04:59,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:59,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:59,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:04:59,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:00,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:00,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-12 11:05:00,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 11:05:00,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1318 [2020-10-12 11:05:00,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:00,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 11:05:00,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:05:00,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-12 11:05:00,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:05:00,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:05:00,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:00,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:00,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:00,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:05:00,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:00,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 11:05:00,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:00,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:05:00,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:00,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:05:00,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:00,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:05:00,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:00,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:00,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:00,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:00,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:05:00,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:05:00,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 11:05:00,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:00,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:05:00,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:05:00,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 11:05:00,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:00,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:05:00,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:00,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:00,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:00,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 11:05:00,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:00,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 11:05:00,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:00,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:05:00,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:05:00,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 11:05:00,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:05:00,597 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 23 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 11:05:00,600 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1746565521] [2020-10-12 11:05:00,602 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:05:00,602 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 11:05:00,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268434383] [2020-10-12 11:05:00,604 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 11:05:00,604 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:05:00,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 11:05:00,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-12 11:05:00,605 INFO L87 Difference]: Start difference. First operand 488 states and 629 transitions. Second operand 8 states. [2020-10-12 11:05:02,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:05:02,119 INFO L93 Difference]: Finished difference Result 1218 states and 1661 transitions. [2020-10-12 11:05:02,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 11:05:02,120 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 115 [2020-10-12 11:05:02,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:05:02,126 INFO L225 Difference]: With dead ends: 1218 [2020-10-12 11:05:02,126 INFO L226 Difference]: Without dead ends: 796 [2020-10-12 11:05:02,128 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:05:02,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2020-10-12 11:05:02,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 780. [2020-10-12 11:05:02,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 780 states. [2020-10-12 11:05:02,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 973 transitions. [2020-10-12 11:05:02,158 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 973 transitions. Word has length 115 [2020-10-12 11:05:02,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:05:02,159 INFO L479 AbstractCegarLoop]: Abstraction has 780 states and 973 transitions. [2020-10-12 11:05:02,159 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 11:05:02,159 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 973 transitions. [2020-10-12 11:05:02,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-12 11:05:02,162 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:05:02,162 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:05:02,162 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 11:05:02,162 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:05:02,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:05:02,163 INFO L82 PathProgramCache]: Analyzing trace with hash -791646177, now seen corresponding path program 1 times [2020-10-12 11:05:02,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:05:02,163 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [410881612] [2020-10-12 11:05:02,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:05:02,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:02,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:02,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:02,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:05,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:05,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:06,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:06,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-12 11:05:06,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:05:06,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4476 [2020-10-12 11:05:06,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:06,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:05:06,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-12 11:05:06,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-12 11:05:06,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:07,126 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2020-10-12 11:05:07,317 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 50 [2020-10-12 11:05:07,513 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 49 [2020-10-12 11:05:07,779 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 45 [2020-10-12 11:05:08,053 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 42 [2020-10-12 11:05:08,312 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 39 [2020-10-12 11:05:08,504 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 33 [2020-10-12 11:05:08,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:05:08,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:08,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:08,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:08,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:05:08,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:08,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:05:08,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:08,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:08,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:08,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:08,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:08,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:05:08,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:08,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:08,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:08,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:05:08,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:08,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:05:08,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:08,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:08,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:08,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:08,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:08,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:05:08,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:08,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:08,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:08,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-12 11:05:08,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:08,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 11:05:08,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:08,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:05:08,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:08,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 11:05:08,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:08,759 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-12 11:05:08,760 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [410881612] [2020-10-12 11:05:08,760 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:05:08,760 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:05:08,760 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888498552] [2020-10-12 11:05:08,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:05:08,761 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:05:08,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:05:08,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:05:08,762 INFO L87 Difference]: Start difference. First operand 780 states and 973 transitions. Second operand 13 states. [2020-10-12 11:05:09,087 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-12 11:05:09,277 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 11:05:09,965 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 114 [2020-10-12 11:05:10,479 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 111 [2020-10-12 11:05:10,794 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 108 [2020-10-12 11:05:11,101 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 105 [2020-10-12 11:05:11,598 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 100 [2020-10-12 11:05:12,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:05:12,031 INFO L93 Difference]: Finished difference Result 1562 states and 1970 transitions. [2020-10-12 11:05:12,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 11:05:12,034 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 117 [2020-10-12 11:05:12,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:05:12,040 INFO L225 Difference]: With dead ends: 1562 [2020-10-12 11:05:12,040 INFO L226 Difference]: Without dead ends: 848 [2020-10-12 11:05:12,047 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-10-12 11:05:12,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2020-10-12 11:05:12,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 842. [2020-10-12 11:05:12,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 842 states. [2020-10-12 11:05:12,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1050 transitions. [2020-10-12 11:05:12,083 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1050 transitions. Word has length 117 [2020-10-12 11:05:12,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:05:12,083 INFO L479 AbstractCegarLoop]: Abstraction has 842 states and 1050 transitions. [2020-10-12 11:05:12,084 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:05:12,084 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1050 transitions. [2020-10-12 11:05:12,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-12 11:05:12,087 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:05:12,088 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] [2020-10-12 11:05:12,088 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 11:05:12,088 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:05:12,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:05:12,088 INFO L82 PathProgramCache]: Analyzing trace with hash -859363397, now seen corresponding path program 1 times [2020-10-12 11:05:12,089 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:05:12,089 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [42179544] [2020-10-12 11:05:12,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:05:12,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:12,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:12,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:12,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:14,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:15,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:15,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:15,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-12 11:05:15,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:05:15,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3506 [2020-10-12 11:05:15,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:15,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:05:15,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-12 11:05:15,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-12 11:05:15,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:16,023 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2020-10-12 11:05:16,225 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 49 [2020-10-12 11:05:16,448 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 53 [2020-10-12 11:05:16,658 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 50 [2020-10-12 11:05:16,871 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 46 [2020-10-12 11:05:17,055 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 42 [2020-10-12 11:05:17,231 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 36 [2020-10-12 11:05:17,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:05:17,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:17,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:17,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:17,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:05:17,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:17,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:05:17,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:17,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:17,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:17,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:17,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:17,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:05:17,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:17,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:17,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:17,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:05:17,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:17,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:05:17,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:17,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:17,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:17,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:17,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:17,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:05:17,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:17,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:17,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:17,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-12 11:05:17,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:17,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 11:05:17,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:17,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:05:17,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:17,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-12 11:05:17,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:17,507 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-12 11:05:17,507 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [42179544] [2020-10-12 11:05:17,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:05:17,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:05:17,508 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653012512] [2020-10-12 11:05:17,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:05:17,508 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:05:17,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:05:17,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:05:17,509 INFO L87 Difference]: Start difference. First operand 842 states and 1050 transitions. Second operand 13 states. [2020-10-12 11:05:17,979 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-12 11:05:18,188 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 11:05:18,637 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 114 [2020-10-12 11:05:19,157 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 111 [2020-10-12 11:05:19,463 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 108 [2020-10-12 11:05:19,930 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 105 [2020-10-12 11:05:20,422 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 100 [2020-10-12 11:05:20,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:05:20,813 INFO L93 Difference]: Finished difference Result 1680 states and 2163 transitions. [2020-10-12 11:05:20,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 11:05:20,825 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 131 [2020-10-12 11:05:20,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:05:20,830 INFO L225 Difference]: With dead ends: 1680 [2020-10-12 11:05:20,830 INFO L226 Difference]: Without dead ends: 904 [2020-10-12 11:05:20,833 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2020-10-12 11:05:20,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 904 states. [2020-10-12 11:05:20,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 904 to 902. [2020-10-12 11:05:20,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 902 states. [2020-10-12 11:05:20,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1118 transitions. [2020-10-12 11:05:20,869 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1118 transitions. Word has length 131 [2020-10-12 11:05:20,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:05:20,869 INFO L479 AbstractCegarLoop]: Abstraction has 902 states and 1118 transitions. [2020-10-12 11:05:20,870 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:05:20,870 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1118 transitions. [2020-10-12 11:05:20,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-12 11:05:20,873 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:05:20,873 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, 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] [2020-10-12 11:05:20,874 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 11:05:20,874 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:05:20,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:05:20,874 INFO L82 PathProgramCache]: Analyzing trace with hash 84749683, now seen corresponding path program 1 times [2020-10-12 11:05:20,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:05:20,875 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1391367694] [2020-10-12 11:05:20,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:05:20,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:20,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:20,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:21,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:22,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:23,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:24,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:24,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-12 11:05:24,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:05:24,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3313 [2020-10-12 11:05:24,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:24,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:05:24,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-12 11:05:24,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-12 11:05:24,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:24,594 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-12 11:05:24,726 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 43 [2020-10-12 11:05:25,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:05:25,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:25,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:25,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:25,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:05:25,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:25,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:05:25,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:25,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:25,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:25,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:25,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:25,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:05:25,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:25,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:25,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:25,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:05:25,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:25,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:05:25,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:25,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:25,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:25,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:25,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:25,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:05:25,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:25,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:25,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:25,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 11:05:25,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:25,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 11:05:25,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:25,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:05:25,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:25,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-12 11:05:25,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:25,354 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 42 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-12 11:05:25,355 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1391367694] [2020-10-12 11:05:25,355 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:05:25,355 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:05:25,355 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983989158] [2020-10-12 11:05:25,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:05:25,356 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:05:25,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:05:25,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:05:25,357 INFO L87 Difference]: Start difference. First operand 902 states and 1118 transitions. Second operand 13 states. [2020-10-12 11:05:25,993 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 11:05:26,432 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 112 [2020-10-12 11:05:26,900 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 109 [2020-10-12 11:05:27,208 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 106 [2020-10-12 11:05:27,521 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 103 [2020-10-12 11:05:27,940 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 98 [2020-10-12 11:05:28,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:05:28,189 INFO L93 Difference]: Finished difference Result 1800 states and 2249 transitions. [2020-10-12 11:05:28,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 11:05:28,190 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 134 [2020-10-12 11:05:28,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:05:28,195 INFO L225 Difference]: With dead ends: 1800 [2020-10-12 11:05:28,195 INFO L226 Difference]: Without dead ends: 964 [2020-10-12 11:05:28,198 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-12 11:05:28,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2020-10-12 11:05:28,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 940. [2020-10-12 11:05:28,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 940 states. [2020-10-12 11:05:28,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1164 transitions. [2020-10-12 11:05:28,227 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1164 transitions. Word has length 134 [2020-10-12 11:05:28,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:05:28,227 INFO L479 AbstractCegarLoop]: Abstraction has 940 states and 1164 transitions. [2020-10-12 11:05:28,227 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:05:28,227 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1164 transitions. [2020-10-12 11:05:28,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-12 11:05:28,231 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:05:28,231 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] [2020-10-12 11:05:28,231 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 11:05:28,232 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:05:28,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:05:28,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1801710643, now seen corresponding path program 1 times [2020-10-12 11:05:28,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:05:28,232 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2136012935] [2020-10-12 11:05:28,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:05:28,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:28,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:28,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:28,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:28,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:29,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:29,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:29,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-12 11:05:29,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:05:29,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1459 [2020-10-12 11:05:29,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:29,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-12 11:05:29,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 11:05:29,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-12 11:05:29,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:30,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:05:30,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:30,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:30,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:30,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:05:30,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:30,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:05:30,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:30,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:30,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:30,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:30,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:30,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:05:30,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:30,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:30,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:30,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:05:30,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:30,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:05:30,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:30,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:05:30,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:30,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 11:05:30,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:30,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 11:05:30,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:30,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:30,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:30,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 11:05:30,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:30,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-12 11:05:30,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:30,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:05:30,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:05:30,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-12 11:05:30,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:31,139 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 16 proven. 40 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 11:05:31,140 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2136012935] [2020-10-12 11:05:31,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:05:31,140 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-12 11:05:31,140 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385555117] [2020-10-12 11:05:31,141 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-12 11:05:31,141 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:05:31,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-12 11:05:31,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2020-10-12 11:05:31,142 INFO L87 Difference]: Start difference. First operand 940 states and 1164 transitions. Second operand 20 states. [2020-10-12 11:05:31,822 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2020-10-12 11:05:32,120 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2020-10-12 11:05:32,423 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-12 11:05:32,744 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-12 11:05:32,989 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-12 11:05:33,476 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2020-10-12 11:05:33,915 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2020-10-12 11:05:34,131 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2020-10-12 11:05:34,545 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88 [2020-10-12 11:05:34,750 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 84 [2020-10-12 11:05:34,965 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-12 11:05:36,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:05:36,606 INFO L93 Difference]: Finished difference Result 1986 states and 2579 transitions. [2020-10-12 11:05:36,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-12 11:05:36,607 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 145 [2020-10-12 11:05:36,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:05:36,614 INFO L225 Difference]: With dead ends: 1986 [2020-10-12 11:05:36,615 INFO L226 Difference]: Without dead ends: 1112 [2020-10-12 11:05:36,618 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 443 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=590, Invalid=1390, Unknown=0, NotChecked=0, Total=1980 [2020-10-12 11:05:36,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2020-10-12 11:05:36,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 1087. [2020-10-12 11:05:36,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1087 states. [2020-10-12 11:05:36,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1087 states to 1087 states and 1333 transitions. [2020-10-12 11:05:36,656 INFO L78 Accepts]: Start accepts. Automaton has 1087 states and 1333 transitions. Word has length 145 [2020-10-12 11:05:36,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:05:36,657 INFO L479 AbstractCegarLoop]: Abstraction has 1087 states and 1333 transitions. [2020-10-12 11:05:36,657 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-12 11:05:36,657 INFO L276 IsEmpty]: Start isEmpty. Operand 1087 states and 1333 transitions. [2020-10-12 11:05:36,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-12 11:05:36,661 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:05:36,661 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 11:05:36,661 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 11:05:36,662 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:05:36,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:05:36,662 INFO L82 PathProgramCache]: Analyzing trace with hash -1915157154, now seen corresponding path program 1 times [2020-10-12 11:05:36,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:05:36,663 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [845936390] [2020-10-12 11:05:36,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:05:36,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:36,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:36,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:37,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:37,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:37,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 11:05:37,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:05:37,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1029 [2020-10-12 11:05:37,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:37,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:05:37,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-12 11:05:37,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-12 11:05:37,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:38,224 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-12 11:05:38,403 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2020-10-12 11:05:38,543 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 38 [2020-10-12 11:05:38,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:05:38,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:38,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:38,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:38,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:05:38,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:38,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:05:38,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:38,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:38,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:38,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:38,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:38,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:05:38,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:38,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:38,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:38,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-12 11:05:38,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:38,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 11:05:38,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:38,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:05:38,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:38,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-12 11:05:38,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:39,049 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 59 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 11:05:39,050 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [845936390] [2020-10-12 11:05:39,050 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:05:39,050 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:05:39,050 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981544647] [2020-10-12 11:05:39,051 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:05:39,051 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:05:39,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:05:39,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:05:39,051 INFO L87 Difference]: Start difference. First operand 1087 states and 1333 transitions. Second operand 13 states. [2020-10-12 11:05:40,023 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 11:05:40,598 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 112 [2020-10-12 11:05:41,215 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 109 [2020-10-12 11:05:41,549 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 106 [2020-10-12 11:05:41,891 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 103 [2020-10-12 11:05:42,273 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 98 [2020-10-12 11:05:42,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:05:42,472 INFO L93 Difference]: Finished difference Result 2177 states and 2689 transitions. [2020-10-12 11:05:42,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 11:05:42,473 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 150 [2020-10-12 11:05:42,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:05:42,478 INFO L225 Difference]: With dead ends: 2177 [2020-10-12 11:05:42,478 INFO L226 Difference]: Without dead ends: 1156 [2020-10-12 11:05:42,481 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-12 11:05:42,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1156 states. [2020-10-12 11:05:42,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1156 to 1156. [2020-10-12 11:05:42,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1156 states. [2020-10-12 11:05:42,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1156 states to 1156 states and 1409 transitions. [2020-10-12 11:05:42,517 INFO L78 Accepts]: Start accepts. Automaton has 1156 states and 1409 transitions. Word has length 150 [2020-10-12 11:05:42,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:05:42,518 INFO L479 AbstractCegarLoop]: Abstraction has 1156 states and 1409 transitions. [2020-10-12 11:05:42,518 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:05:42,518 INFO L276 IsEmpty]: Start isEmpty. Operand 1156 states and 1409 transitions. [2020-10-12 11:05:42,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-12 11:05:42,523 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:05:42,523 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:05:42,524 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 11:05:42,524 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:05:42,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:05:42,524 INFO L82 PathProgramCache]: Analyzing trace with hash -1309849622, now seen corresponding path program 1 times [2020-10-12 11:05:42,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:05:42,525 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [755405294] [2020-10-12 11:05:42,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:05:42,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:42,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:42,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:42,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:43,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:43,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:43,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:44,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:44,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-12 11:05:44,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 11:05:44,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2391 [2020-10-12 11:05:44,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:44,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 11:05:44,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:05:44,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-12 11:05:44,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:45,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:05:45,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:45,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:45,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:45,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:05:45,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:45,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:05:45,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:45,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:05:45,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:45,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:05:45,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:45,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:05:45,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:45,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:45,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:45,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:45,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 11:05:45,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:05:45,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 11:05:45,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:45,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:05:45,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:05:45,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 11:05:45,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:45,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-12 11:05:45,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:45,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:45,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:45,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-12 11:05:45,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:45,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-12 11:05:45,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:45,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:05:45,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:05:45,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-12 11:05:45,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:45,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-12 11:05:45,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:45,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:45,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:45,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 11:05:45,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:45,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 11:05:45,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:45,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:45,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 11:05:45,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:45,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:45,174 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 63 proven. 20 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-12 11:05:45,174 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [755405294] [2020-10-12 11:05:45,174 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:05:45,175 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 11:05:45,175 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034048363] [2020-10-12 11:05:45,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 11:05:45,175 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:05:45,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 11:05:45,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 11:05:45,176 INFO L87 Difference]: Start difference. First operand 1156 states and 1409 transitions. Second operand 7 states. [2020-10-12 11:05:46,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:05:46,736 INFO L93 Difference]: Finished difference Result 2405 states and 2992 transitions. [2020-10-12 11:05:46,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 11:05:46,739 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 154 [2020-10-12 11:05:46,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:05:46,744 INFO L225 Difference]: With dead ends: 2405 [2020-10-12 11:05:46,744 INFO L226 Difference]: Without dead ends: 1315 [2020-10-12 11:05:46,748 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 [2020-10-12 11:05:46,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1315 states. [2020-10-12 11:05:46,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1315 to 1305. [2020-10-12 11:05:46,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1305 states. [2020-10-12 11:05:46,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1305 states to 1305 states and 1590 transitions. [2020-10-12 11:05:46,787 INFO L78 Accepts]: Start accepts. Automaton has 1305 states and 1590 transitions. Word has length 154 [2020-10-12 11:05:46,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:05:46,787 INFO L479 AbstractCegarLoop]: Abstraction has 1305 states and 1590 transitions. [2020-10-12 11:05:46,787 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 11:05:46,787 INFO L276 IsEmpty]: Start isEmpty. Operand 1305 states and 1590 transitions. [2020-10-12 11:05:46,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-10-12 11:05:46,792 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:05:46,792 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:05:46,793 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 11:05:46,793 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:05:46,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:05:46,793 INFO L82 PathProgramCache]: Analyzing trace with hash -43708058, now seen corresponding path program 1 times [2020-10-12 11:05:46,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:05:46,794 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1651537332] [2020-10-12 11:05:46,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:05:46,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:46,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:47,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:47,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:47,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:47,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-10-12 11:05:47,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:05:47,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 760 [2020-10-12 11:05:47,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:47,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:05:47,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 111 [2020-10-12 11:05:47,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-12 11:05:47,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:47,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:05:47,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:47,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:47,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:47,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:05:47,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:47,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 11:05:47,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:47,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:47,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:47,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:47,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:47,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:05:47,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:47,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:47,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:47,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 11:05:47,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:47,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 11:05:47,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:47,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:47,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:47,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:47,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:47,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 11:05:47,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:47,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:47,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:47,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-12 11:05:47,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:47,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 11:05:47,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:47,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:47,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:47,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:47,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:47,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-12 11:05:47,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:47,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:47,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:47,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 11:05:47,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:47,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 11:05:47,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:47,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:05:47,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:47,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 11:05:47,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:47,825 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 91 proven. 3 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-10-12 11:05:47,825 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1651537332] [2020-10-12 11:05:47,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:05:47,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 11:05:47,826 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698307445] [2020-10-12 11:05:47,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 11:05:47,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:05:47,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 11:05:47,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 11:05:47,827 INFO L87 Difference]: Start difference. First operand 1305 states and 1590 transitions. Second operand 5 states. [2020-10-12 11:05:48,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:05:48,991 INFO L93 Difference]: Finished difference Result 3235 states and 4070 transitions. [2020-10-12 11:05:48,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 11:05:48,992 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 184 [2020-10-12 11:05:48,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:05:49,001 INFO L225 Difference]: With dead ends: 3235 [2020-10-12 11:05:49,001 INFO L226 Difference]: Without dead ends: 1812 [2020-10-12 11:05:49,006 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:05:49,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1812 states. [2020-10-12 11:05:49,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1812 to 1812. [2020-10-12 11:05:49,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1812 states. [2020-10-12 11:05:49,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1812 states to 1812 states and 2122 transitions. [2020-10-12 11:05:49,059 INFO L78 Accepts]: Start accepts. Automaton has 1812 states and 2122 transitions. Word has length 184 [2020-10-12 11:05:49,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:05:49,060 INFO L479 AbstractCegarLoop]: Abstraction has 1812 states and 2122 transitions. [2020-10-12 11:05:49,060 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 11:05:49,060 INFO L276 IsEmpty]: Start isEmpty. Operand 1812 states and 2122 transitions. [2020-10-12 11:05:49,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-10-12 11:05:49,066 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:05:49,068 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:05:49,068 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 11:05:49,069 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:05:49,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:05:49,070 INFO L82 PathProgramCache]: Analyzing trace with hash 988203564, now seen corresponding path program 1 times [2020-10-12 11:05:49,070 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:05:49,071 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1108885001] [2020-10-12 11:05:49,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:05:49,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:49,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:49,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:49,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:49,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:49,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:50,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:50,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 203 [2020-10-12 11:05:50,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 11:05:50,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1744 [2020-10-12 11:05:50,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:50,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:05:50,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-10-12 11:05:50,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-12 11:05:50,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:51,313 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2020-10-12 11:05:51,488 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2020-10-12 11:05:51,647 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 38 [2020-10-12 11:05:51,792 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 35 [2020-10-12 11:05:52,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:05:52,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:52,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:52,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:52,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:05:52,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:52,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:05:52,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:52,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:52,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:52,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:52,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:05:52,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:05:52,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:52,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:52,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:52,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 11:05:52,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:52,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 11:05:52,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:52,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:52,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:52,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:52,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:52,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 11:05:52,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:52,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:52,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:52,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-12 11:05:52,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:52,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 11:05:52,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:52,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:05:52,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:52,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:05:52,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:52,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-12 11:05:52,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:52,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:52,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:52,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-12 11:05:52,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:05:52,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 11:05:52,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:52,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:05:52,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:05:52,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 11:05:52,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:05:52,457 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 96 proven. 3 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-12 11:05:52,457 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1108885001] [2020-10-12 11:05:52,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:05:52,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:05:52,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575922038] [2020-10-12 11:05:52,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:05:52,458 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:05:52,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:05:52,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:05:52,461 INFO L87 Difference]: Start difference. First operand 1812 states and 2122 transitions. Second operand 13 states. [2020-10-12 11:05:52,815 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-12 11:05:52,987 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 11:05:53,332 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-12 11:05:53,615 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 11:05:53,784 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-12 11:05:54,104 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-12 11:05:54,348 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-12 11:05:54,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:05:54,548 INFO L93 Difference]: Finished difference Result 3621 states and 4253 transitions. [2020-10-12 11:05:54,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-12 11:05:54,549 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 189 [2020-10-12 11:05:54,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:05:54,556 INFO L225 Difference]: With dead ends: 3621 [2020-10-12 11:05:54,556 INFO L226 Difference]: Without dead ends: 1858 [2020-10-12 11:05:54,561 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2020-10-12 11:05:54,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1858 states. [2020-10-12 11:05:54,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1858 to 1812. [2020-10-12 11:05:54,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1812 states. [2020-10-12 11:05:54,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1812 states to 1812 states and 2122 transitions. [2020-10-12 11:05:54,609 INFO L78 Accepts]: Start accepts. Automaton has 1812 states and 2122 transitions. Word has length 189 [2020-10-12 11:05:54,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:05:54,609 INFO L479 AbstractCegarLoop]: Abstraction has 1812 states and 2122 transitions. [2020-10-12 11:05:54,609 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:05:54,609 INFO L276 IsEmpty]: Start isEmpty. Operand 1812 states and 2122 transitions. [2020-10-12 11:05:54,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-10-12 11:05:54,615 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:05:54,615 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:05:54,616 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 11:05:54,616 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:05:54,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:05:54,616 INFO L82 PathProgramCache]: Analyzing trace with hash 1091592882, now seen corresponding path program 1 times [2020-10-12 11:05:54,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:05:54,617 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [499771423] [2020-10-12 11:05:54,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:05:54,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:05:54,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:54,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:54,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:55,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:57,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:57,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:57,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:58,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:05:59,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:05:59,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 204 [2020-10-12 11:05:59,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 11:05:59,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-10-12 11:05:59,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:05:59,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 11:05:59,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-12 11:05:59,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-12 11:05:59,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:00,057 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2020-10-12 11:06:00,238 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 51 [2020-10-12 11:06:00,458 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 52 [2020-10-12 11:06:00,676 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 49 [2020-10-12 11:06:00,879 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 45 [2020-10-12 11:06:01,086 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 41 [2020-10-12 11:06:01,270 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 37 [2020-10-12 11:06:01,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:06:01,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:01,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:01,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:01,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:06:01,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:01,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:06:01,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:01,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:06:01,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:06:01,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:06:01,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:01,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:06:01,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:01,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:01,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:01,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 11:06:01,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:01,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 11:06:01,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:01,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:06:01,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:06:01,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:06:01,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:01,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 11:06:01,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:01,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:01,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:01,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-12 11:06:01,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:01,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 11:06:01,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:01,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:06:01,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:06:01,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:06:01,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:01,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-12 11:06:01,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:01,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:01,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:01,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-12 11:06:01,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:01,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 11:06:01,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:01,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:06:01,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:06:01,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 11:06:01,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:01,552 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 97 proven. 3 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-10-12 11:06:01,552 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [499771423] [2020-10-12 11:06:01,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:06:01,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 11:06:01,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375464234] [2020-10-12 11:06:01,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 11:06:01,553 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:06:01,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 11:06:01,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-12 11:06:01,553 INFO L87 Difference]: Start difference. First operand 1812 states and 2122 transitions. Second operand 13 states. [2020-10-12 11:06:02,214 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2020-10-12 11:06:02,377 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-12 11:06:02,570 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 11:06:03,045 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 116 [2020-10-12 11:06:03,307 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2020-10-12 11:06:03,639 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 113 [2020-10-12 11:06:04,086 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 110 [2020-10-12 11:06:04,405 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 107 [2020-10-12 11:06:04,803 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 102 [2020-10-12 11:06:05,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:06:05,217 INFO L93 Difference]: Finished difference Result 3614 states and 4292 transitions. [2020-10-12 11:06:05,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 11:06:05,218 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 190 [2020-10-12 11:06:05,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:06:05,225 INFO L225 Difference]: With dead ends: 3614 [2020-10-12 11:06:05,225 INFO L226 Difference]: Without dead ends: 1868 [2020-10-12 11:06:05,228 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=143, Invalid=319, Unknown=0, NotChecked=0, Total=462 [2020-10-12 11:06:05,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1868 states. [2020-10-12 11:06:05,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1868 to 1866. [2020-10-12 11:06:05,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1866 states. [2020-10-12 11:06:05,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1866 states to 1866 states and 2186 transitions. [2020-10-12 11:06:05,270 INFO L78 Accepts]: Start accepts. Automaton has 1866 states and 2186 transitions. Word has length 190 [2020-10-12 11:06:05,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:06:05,271 INFO L479 AbstractCegarLoop]: Abstraction has 1866 states and 2186 transitions. [2020-10-12 11:06:05,271 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 11:06:05,271 INFO L276 IsEmpty]: Start isEmpty. Operand 1866 states and 2186 transitions. [2020-10-12 11:06:05,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-10-12 11:06:05,277 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:06:05,277 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-12 11:06:05,277 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 11:06:05,277 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:06:05,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:06:05,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1289071729, now seen corresponding path program 1 times [2020-10-12 11:06:05,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:06:05,278 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1697868151] [2020-10-12 11:06:05,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:06:05,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:05,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:05,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:05,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:05,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:06,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:06,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:07,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:07,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:07,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:07,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:08,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:08,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-10-12 11:06:08,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-12 11:06:08,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3270 [2020-10-12 11:06:08,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:08,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 11:06:08,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 11:06:08,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 207 [2020-10-12 11:06:08,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:08,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:06:08,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:08,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:08,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:08,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:06:08,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:08,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 11:06:08,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:08,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:06:08,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:06:08,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 11:06:08,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:08,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:06:08,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:08,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:08,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:08,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:08,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 11:06:08,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:06:08,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-12 11:06:08,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:08,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:06:08,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:06:08,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-12 11:06:08,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:08,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 11:06:08,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:08,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:08,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:08,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:08,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-12 11:06:08,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:06:08,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-12 11:06:08,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:08,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:06:08,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:06:08,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 11:06:08,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:08,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-12 11:06:08,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:08,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:08,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:08,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:08,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 11:06:08,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:06:08,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 11:06:08,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:08,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:06:08,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:06:08,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 11:06:08,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:08,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-12 11:06:08,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:08,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:08,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:08,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:08,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-12 11:06:08,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 11:06:08,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-12 11:06:08,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:08,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:06:08,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:06:08,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-12 11:06:08,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:09,050 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 88 proven. 56 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-10-12 11:06:09,050 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1697868151] [2020-10-12 11:06:09,050 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:06:09,051 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 11:06:09,051 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193257057] [2020-10-12 11:06:09,051 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 11:06:09,051 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:06:09,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 11:06:09,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-12 11:06:09,052 INFO L87 Difference]: Start difference. First operand 1866 states and 2186 transitions. Second operand 9 states. [2020-10-12 11:06:10,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:06:10,855 INFO L93 Difference]: Finished difference Result 5168 states and 6332 transitions. [2020-10-12 11:06:10,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 11:06:10,855 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 197 [2020-10-12 11:06:10,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:06:10,869 INFO L225 Difference]: With dead ends: 5168 [2020-10-12 11:06:10,869 INFO L226 Difference]: Without dead ends: 3368 [2020-10-12 11:06:10,874 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-10-12 11:06:10,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3368 states. [2020-10-12 11:06:10,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3368 to 3249. [2020-10-12 11:06:10,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3249 states. [2020-10-12 11:06:10,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3249 states to 3249 states and 3774 transitions. [2020-10-12 11:06:10,963 INFO L78 Accepts]: Start accepts. Automaton has 3249 states and 3774 transitions. Word has length 197 [2020-10-12 11:06:10,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:06:10,964 INFO L479 AbstractCegarLoop]: Abstraction has 3249 states and 3774 transitions. [2020-10-12 11:06:10,964 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 11:06:10,964 INFO L276 IsEmpty]: Start isEmpty. Operand 3249 states and 3774 transitions. [2020-10-12 11:06:10,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-10-12 11:06:10,972 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:06:10,972 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-12 11:06:10,972 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 11:06:10,972 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:06:10,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:06:10,973 INFO L82 PathProgramCache]: Analyzing trace with hash 1909597567, now seen corresponding path program 1 times [2020-10-12 11:06:10,973 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:06:10,973 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [3109168] [2020-10-12 11:06:10,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:06:11,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:11,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:11,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:11,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:11,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:11,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 218 [2020-10-12 11:06:11,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:06:11,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 778 [2020-10-12 11:06:11,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:11,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:06:11,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-12 11:06:11,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 11:06:11,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:11,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:06:11,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:11,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:11,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:11,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:06:11,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:11,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:06:11,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:11,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:06:11,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:06:11,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:06:11,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:11,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:06:11,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:11,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:11,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:11,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 11:06:11,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:11,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 11:06:11,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:11,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:06:11,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:06:11,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:06:11,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:06:11,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 11:06:11,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:11,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:11,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:11,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-12 11:06:11,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:11,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-12 11:06:11,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:11,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:06:11,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:06:11,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-12 11:06:11,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:06:12,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-12 11:06:12,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:12,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:12,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:12,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:06:12,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:12,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 11:06:12,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:12,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:06:12,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:06:12,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 11:06:12,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:12,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-12 11:06:12,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:12,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:12,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:12,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-12 11:06:12,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:12,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 11:06:12,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:12,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:06:12,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 11:06:12,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:06:12,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:12,171 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 140 proven. 14 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-10-12 11:06:12,171 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [3109168] [2020-10-12 11:06:12,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:06:12,172 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 11:06:12,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730826063] [2020-10-12 11:06:12,174 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 11:06:12,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:06:12,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 11:06:12,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 11:06:12,175 INFO L87 Difference]: Start difference. First operand 3249 states and 3774 transitions. Second operand 7 states. [2020-10-12 11:06:13,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:06:13,404 INFO L93 Difference]: Finished difference Result 6579 states and 7665 transitions. [2020-10-12 11:06:13,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 11:06:13,405 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 202 [2020-10-12 11:06:13,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:06:13,417 INFO L225 Difference]: With dead ends: 6579 [2020-10-12 11:06:13,417 INFO L226 Difference]: Without dead ends: 3396 [2020-10-12 11:06:13,423 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-12 11:06:13,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3396 states. [2020-10-12 11:06:13,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3396 to 3390. [2020-10-12 11:06:13,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3390 states. [2020-10-12 11:06:13,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3390 states to 3390 states and 3909 transitions. [2020-10-12 11:06:13,503 INFO L78 Accepts]: Start accepts. Automaton has 3390 states and 3909 transitions. Word has length 202 [2020-10-12 11:06:13,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:06:13,503 INFO L479 AbstractCegarLoop]: Abstraction has 3390 states and 3909 transitions. [2020-10-12 11:06:13,503 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 11:06:13,503 INFO L276 IsEmpty]: Start isEmpty. Operand 3390 states and 3909 transitions. [2020-10-12 11:06:13,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-10-12 11:06:13,511 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:06:13,511 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 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] [2020-10-12 11:06:13,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 11:06:13,512 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:06:13,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:06:13,512 INFO L82 PathProgramCache]: Analyzing trace with hash 559887766, now seen corresponding path program 1 times [2020-10-12 11:06:13,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:06:13,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [139640574] [2020-10-12 11:06:13,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:06:13,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:13,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:13,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:14,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:14,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:14,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 230 [2020-10-12 11:06:14,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 11:06:14,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1261 [2020-10-12 11:06:14,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:14,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:06:14,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-10-12 11:06:14,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-12 11:06:14,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:14,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:06:14,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:14,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:14,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:14,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:06:14,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:14,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:06:14,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:14,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:06:14,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:06:14,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:06:14,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:14,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:06:14,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:14,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:14,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:14,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 11:06:14,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:14,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 11:06:14,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:14,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:06:14,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:06:14,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:06:14,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:14,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 11:06:14,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:14,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:14,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:14,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-12 11:06:14,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:14,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 11:06:14,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:14,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:06:14,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:06:14,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:06:14,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:14,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-12 11:06:14,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:14,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:14,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:14,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 11:06:14,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:14,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 11:06:14,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:14,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:06:14,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:06:14,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:06:14,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:14,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-12 11:06:14,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:14,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:14,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:14,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 11:06:14,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:14,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 11:06:14,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:14,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:06:14,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:06:14,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:06:14,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:14,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 11:06:14,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:14,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:14,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:14,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-12 11:06:14,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:14,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 11:06:14,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:14,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:06:14,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:06:14,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 11:06:15,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:15,068 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 117 proven. 5 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2020-10-12 11:06:15,068 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [139640574] [2020-10-12 11:06:15,068 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:06:15,069 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 11:06:15,069 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885290128] [2020-10-12 11:06:15,070 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 11:06:15,070 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:06:15,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 11:06:15,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 11:06:15,070 INFO L87 Difference]: Start difference. First operand 3390 states and 3909 transitions. Second operand 6 states. [2020-10-12 11:06:16,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:06:16,413 INFO L93 Difference]: Finished difference Result 7476 states and 8665 transitions. [2020-10-12 11:06:16,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 11:06:16,414 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 212 [2020-10-12 11:06:16,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:06:16,430 INFO L225 Difference]: With dead ends: 7476 [2020-10-12 11:06:16,430 INFO L226 Difference]: Without dead ends: 4152 [2020-10-12 11:06:16,437 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-12 11:06:16,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4152 states. [2020-10-12 11:06:16,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4152 to 3944. [2020-10-12 11:06:16,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3944 states. [2020-10-12 11:06:16,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3944 states to 3944 states and 4506 transitions. [2020-10-12 11:06:16,541 INFO L78 Accepts]: Start accepts. Automaton has 3944 states and 4506 transitions. Word has length 212 [2020-10-12 11:06:16,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:06:16,542 INFO L479 AbstractCegarLoop]: Abstraction has 3944 states and 4506 transitions. [2020-10-12 11:06:16,542 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 11:06:16,542 INFO L276 IsEmpty]: Start isEmpty. Operand 3944 states and 4506 transitions. [2020-10-12 11:06:16,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-10-12 11:06:16,551 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:06:16,551 INFO L422 BasicCegarLoop]: trace histogram [5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 11:06:16,552 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 11:06:16,552 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:06:16,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:06:16,552 INFO L82 PathProgramCache]: Analyzing trace with hash 948572173, now seen corresponding path program 1 times [2020-10-12 11:06:16,553 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:06:16,553 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1308416877] [2020-10-12 11:06:16,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:06:16,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:16,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:16,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:16,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 227 [2020-10-12 11:06:16,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:16,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 329 [2020-10-12 11:06:16,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:16,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:06:16,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-12 11:06:16,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-12 11:06:16,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:17,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:06:17,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:17,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:17,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:17,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:06:17,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:17,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:06:17,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:17,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:06:17,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:06:17,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:06:17,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:17,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:06:17,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:17,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:17,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:17,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-12 11:06:17,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:17,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 11:06:17,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:17,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:06:17,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:06:17,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:06:17,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:17,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-12 11:06:17,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:17,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:17,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:17,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-12 11:06:17,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:17,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 11:06:17,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:17,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:06:17,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:06:17,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:06:17,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:17,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-12 11:06:17,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:17,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:17,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:17,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 11:06:17,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:17,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 11:06:17,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:17,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:06:17,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:06:17,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 11:06:17,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:17,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-12 11:06:17,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:17,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:17,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:17,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-12 11:06:17,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:17,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 11:06:17,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:17,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:06:17,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:06:17,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 11:06:17,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:17,246 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 196 proven. 2 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2020-10-12 11:06:17,246 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1308416877] [2020-10-12 11:06:17,246 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:06:17,246 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 11:06:17,247 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244990919] [2020-10-12 11:06:17,247 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 11:06:17,247 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:06:17,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 11:06:17,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 11:06:17,248 INFO L87 Difference]: Start difference. First operand 3944 states and 4506 transitions. Second operand 7 states. [2020-10-12 11:06:18,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:06:18,417 INFO L93 Difference]: Finished difference Result 8382 states and 9652 transitions. [2020-10-12 11:06:18,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 11:06:18,418 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 211 [2020-10-12 11:06:18,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:06:18,434 INFO L225 Difference]: With dead ends: 8382 [2020-10-12 11:06:18,434 INFO L226 Difference]: Without dead ends: 4504 [2020-10-12 11:06:18,442 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-12 11:06:18,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4504 states. [2020-10-12 11:06:18,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4504 to 4484. [2020-10-12 11:06:18,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4484 states. [2020-10-12 11:06:18,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4484 states to 4484 states and 5099 transitions. [2020-10-12 11:06:18,530 INFO L78 Accepts]: Start accepts. Automaton has 4484 states and 5099 transitions. Word has length 211 [2020-10-12 11:06:18,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:06:18,531 INFO L479 AbstractCegarLoop]: Abstraction has 4484 states and 5099 transitions. [2020-10-12 11:06:18,531 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 11:06:18,531 INFO L276 IsEmpty]: Start isEmpty. Operand 4484 states and 5099 transitions. [2020-10-12 11:06:18,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-10-12 11:06:18,540 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:06:18,540 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-12 11:06:18,540 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-12 11:06:18,540 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:06:18,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:06:18,541 INFO L82 PathProgramCache]: Analyzing trace with hash -512092368, now seen corresponding path program 1 times [2020-10-12 11:06:18,541 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:06:18,541 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1173556040] [2020-10-12 11:06:18,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:06:18,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:18,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:18,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:18,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 249 [2020-10-12 11:06:18,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:18,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 266 [2020-10-12 11:06:18,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:18,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:06:18,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-12 11:06:18,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-12 11:06:18,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:18,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:06:18,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:18,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:18,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:18,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:06:18,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:18,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:06:18,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:18,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:06:18,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:06:18,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:06:18,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:18,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:06:18,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:18,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:18,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:18,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-12 11:06:18,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:18,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 11:06:18,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:18,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:06:18,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:06:18,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:06:18,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:18,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-12 11:06:19,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:19,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:19,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:19,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-12 11:06:19,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:19,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 11:06:19,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:19,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:06:19,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:06:19,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-12 11:06:19,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:19,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-12 11:06:19,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:19,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:19,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:19,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-12 11:06:19,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:19,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-12 11:06:19,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:19,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:06:19,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:06:19,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 11:06:19,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:19,246 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 206 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-10-12 11:06:19,246 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1173556040] [2020-10-12 11:06:19,246 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:06:19,246 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 11:06:19,247 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929837207] [2020-10-12 11:06:19,247 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 11:06:19,247 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:06:19,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 11:06:19,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 11:06:19,248 INFO L87 Difference]: Start difference. First operand 4484 states and 5099 transitions. Second operand 7 states. [2020-10-12 11:06:20,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:06:20,487 INFO L93 Difference]: Finished difference Result 8914 states and 10142 transitions. [2020-10-12 11:06:20,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 11:06:20,491 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 235 [2020-10-12 11:06:20,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:06:20,513 INFO L225 Difference]: With dead ends: 8914 [2020-10-12 11:06:20,513 INFO L226 Difference]: Without dead ends: 4498 [2020-10-12 11:06:20,521 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-12 11:06:20,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4498 states. [2020-10-12 11:06:20,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4498 to 4353. [2020-10-12 11:06:20,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4353 states. [2020-10-12 11:06:20,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4353 states to 4353 states and 4921 transitions. [2020-10-12 11:06:20,614 INFO L78 Accepts]: Start accepts. Automaton has 4353 states and 4921 transitions. Word has length 235 [2020-10-12 11:06:20,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:06:20,615 INFO L479 AbstractCegarLoop]: Abstraction has 4353 states and 4921 transitions. [2020-10-12 11:06:20,615 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 11:06:20,616 INFO L276 IsEmpty]: Start isEmpty. Operand 4353 states and 4921 transitions. [2020-10-12 11:06:20,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-10-12 11:06:20,627 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:06:20,627 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-12 11:06:20,628 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-12 11:06:20,628 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:06:20,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:06:20,629 INFO L82 PathProgramCache]: Analyzing trace with hash 2021476655, now seen corresponding path program 1 times [2020-10-12 11:06:20,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:06:20,629 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1972693873] [2020-10-12 11:06:20,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:06:20,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:20,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:21,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:21,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-12 11:06:21,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:21,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 625 [2020-10-12 11:06:21,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:21,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:06:21,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-12 11:06:21,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-12 11:06:21,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:06:21,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 11:06:21,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:21,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:21,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:21,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 11:06:21,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:21,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 11:06:21,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:21,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:06:21,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:06:21,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:06:21,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 11:06:21,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 11:06:21,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:21,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:21,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:21,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 11:06:21,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:21,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 11:06:21,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:21,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:06:21,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:06:21,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:06:21,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:21,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 11:06:21,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:21,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:21,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:21,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-12 11:06:21,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:21,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 11:06:21,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:21,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 11:06:21,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:06:21,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 11:06:21,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:21,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 11:06:21,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:21,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:21,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:21,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 11:06:21,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:21,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-12 11:06:21,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:21,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 11:06:21,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 11:06:21,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-12 11:06:21,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:21,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-12 11:06:21,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 11:06:21,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 11:06:21,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 11:06:21,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-12 11:06:21,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 11:06:21,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-12 11:06:21,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 11:06:21,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 11:06:21,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 11:06:21,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 11:06:21,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 11:06:21,757 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 215 proven. 2 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-10-12 11:06:21,758 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1972693873] [2020-10-12 11:06:21,758 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 11:06:21,758 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 11:06:21,758 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204222074] [2020-10-12 11:06:21,759 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 11:06:21,759 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 11:06:21,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 11:06:21,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 11:06:21,759 INFO L87 Difference]: Start difference. First operand 4353 states and 4921 transitions. Second operand 7 states. [2020-10-12 11:06:23,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 11:06:23,074 INFO L93 Difference]: Finished difference Result 8640 states and 9772 transitions. [2020-10-12 11:06:23,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 11:06:23,075 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 237 [2020-10-12 11:06:23,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 11:06:23,081 INFO L225 Difference]: With dead ends: 8640 [2020-10-12 11:06:23,081 INFO L226 Difference]: Without dead ends: 1816 [2020-10-12 11:06:23,089 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-12 11:06:23,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1816 states. [2020-10-12 11:06:23,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1816 to 1816. [2020-10-12 11:06:23,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1816 states. [2020-10-12 11:06:23,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1816 states to 1816 states and 1922 transitions. [2020-10-12 11:06:23,118 INFO L78 Accepts]: Start accepts. Automaton has 1816 states and 1922 transitions. Word has length 237 [2020-10-12 11:06:23,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 11:06:23,118 INFO L479 AbstractCegarLoop]: Abstraction has 1816 states and 1922 transitions. [2020-10-12 11:06:23,119 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 11:06:23,119 INFO L276 IsEmpty]: Start isEmpty. Operand 1816 states and 1922 transitions. [2020-10-12 11:06:23,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-10-12 11:06:23,122 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 11:06:23,122 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-12 11:06:23,123 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-12 11:06:23,123 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 11:06:23,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 11:06:23,123 INFO L82 PathProgramCache]: Analyzing trace with hash 1764963115, now seen corresponding path program 1 times [2020-10-12 11:06:23,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 11:06:23,124 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [132889267] [2020-10-12 11:06:23,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 11:06:23,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-12 11:06:23,176 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-12 11:06:23,176 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-12 11:06:23,181 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-12 11:06:23,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 11:06:23 BoogieIcfgContainer [2020-10-12 11:06:23,243 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 11:06:23,247 INFO L168 Benchmark]: Toolchain (without parser) took 114163.50 ms. Allocated memory was 141.6 MB in the beginning and 1.1 GB in the end (delta: 957.9 MB). Free memory was 101.0 MB in the beginning and 469.6 MB in the end (delta: -368.6 MB). Peak memory consumption was 589.3 MB. Max. memory is 7.1 GB. [2020-10-12 11:06:23,248 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 141.6 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-12 11:06:23,249 INFO L168 Benchmark]: CACSL2BoogieTranslator took 848.54 ms. Allocated memory was 141.6 MB in the beginning and 207.1 MB in the end (delta: 65.5 MB). Free memory was 100.8 MB in the beginning and 172.4 MB in the end (delta: -71.6 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. [2020-10-12 11:06:23,249 INFO L168 Benchmark]: Boogie Preprocessor took 110.85 ms. Allocated memory is still 207.1 MB. Free memory was 172.4 MB in the beginning and 167.8 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2020-10-12 11:06:23,250 INFO L168 Benchmark]: RCFGBuilder took 1287.34 ms. Allocated memory was 207.1 MB in the beginning and 235.9 MB in the end (delta: 28.8 MB). Free memory was 167.8 MB in the beginning and 175.0 MB in the end (delta: -7.2 MB). Peak memory consumption was 78.7 MB. Max. memory is 7.1 GB. [2020-10-12 11:06:23,250 INFO L168 Benchmark]: TraceAbstraction took 111908.88 ms. Allocated memory was 235.9 MB in the beginning and 1.1 GB in the end (delta: 863.5 MB). Free memory was 173.6 MB in the beginning and 469.6 MB in the end (delta: -295.9 MB). Peak memory consumption was 567.6 MB. Max. memory is 7.1 GB. [2020-10-12 11:06:23,252 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 141.6 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 848.54 ms. Allocated memory was 141.6 MB in the beginning and 207.1 MB in the end (delta: 65.5 MB). Free memory was 100.8 MB in the beginning and 172.4 MB in the end (delta: -71.6 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 110.85 ms. Allocated memory is still 207.1 MB. Free memory was 172.4 MB in the beginning and 167.8 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1287.34 ms. Allocated memory was 207.1 MB in the beginning and 235.9 MB in the end (delta: 28.8 MB). Free memory was 167.8 MB in the beginning and 175.0 MB in the end (delta: -7.2 MB). Peak memory consumption was 78.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 111908.88 ms. Allocated memory was 235.9 MB in the beginning and 1.1 GB in the end (delta: 863.5 MB). Free memory was 173.6 MB in the beginning and 469.6 MB in the end (delta: -295.9 MB). Peak memory consumption was 567.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 419]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L7] int a= 1; [L8] int d= 4; [L9] int e= 5; [L10] int f= 6; [L11] int c= 3; [L12] int b= 2; [L15] int u = 21; [L16] int v = 22; [L17] int w = 23; [L18] int x = 24; [L19] int y = 25; [L20] int z = 26; [L22] int a17 = 1; [L23] int a7 = 0; [L24] int a20 = 1; [L25] int a8 = 15; [L26] int a12 = 8; [L27] int a16 = 5; [L28] int a21 = 1; [L580] int output = -1; [L583] COND TRUE 1 [L586] int input; [L587] input = __VERIFIER_nondet_int() [L588] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L591] CALL, EXPR calculate_output(input) [L31] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L35] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L43] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L49] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L54] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L62] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L65] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L72] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L80] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L84] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L92] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L97] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L102] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L108] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L114] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L119] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L124] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L129] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L136] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L140] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L144] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L148] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L152] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L160] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L165] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L173] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L178] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L186] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L189] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L194] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L197] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L203] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L208] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L214] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L218] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L223] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L231] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L238] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L245] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L250] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L256] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L261] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L265] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L268] COND FALSE !((((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4))) [L273] COND FALSE !(((a7==1)&&((a8==13)&&((a12==8)&&(!(a21==1)&&((input==2)&&((((a20==1)&&!(a17==1))&&(a16==6))||(((a17==1)&&!(a20==1))&&(a16==4))))))))) [L278] COND FALSE !((((((((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15))&&(a16==6))&&(a21==1))||((((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))&&(a16==4))&&!(a21==1)))&&(input==6))&&(a12==8))) [L286] COND FALSE !(((!(a7==1)&&(!(a17==1)&&(((((input==3)&&(a21==1))&&(a16==4))&&(a8==15))&&(a12==8))))&&!(a20==1))) [L292] COND FALSE !((((((a12==8)&&(((((a17==1)&&!(a20==1))&&(a16==4))||((((a20==1)&&!(a17==1))&&(a16==5))||((!(a17==1)&&(a20==1))&&(a16==6))))&&(input==3)))&&(a8==15))&&(a21==1))&&!(a7==1))) [L299] COND FALSE !((((!(a7==1)&&(((input==5)&&((((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a12==8)))&&(a21==1))&&(a8==15))) [L306] COND FALSE !(((!(a7==1)&&(((a21==1)&&(((a17==1)&&((a12==8)&&(input==2)))&&!(a20==1)))&&(a16==6)))&&(a8==15))) [L312] COND FALSE !(((!(a17==1)&&((a21==1)&&((!(a20==1)&&((a12==8)&&((input==3)&&!(a7==1))))&&(a8==15))))&&(a16==5))) [L316] COND FALSE !((((a16==5)&&(!(a20==1)&&(((((input==6)&&(a21==1))&&(a17==1))&&!(a7==1))&&(a12==8))))&&(a8==15))) [L318] COND FALSE !((!(a7==1)&&((a17==1)&&(((a16==6)&&(!(a20==1)&&(((input==6)&&(a12==8))&&(a21==1))))&&(a8==15))))) [L324] COND FALSE !(((((a21==1)&&((a8==15)&&((a12==8)&&(!(a7==1)&&(!(a17==1)&&(input==2))))))&&(a16==4))&&(a20==1))) [L329] COND FALSE !(((a8==15)&&(((a16==4)&&((a12==8)&&((!(a20==1)&&(!(a7==1)&&(input==1)))&&!(a17==1))))&&(a21==1)))) [L333] COND TRUE ((a21==1)&&(((a12==8)&&((((a17==1)&&((input==3)&&((a16==5)||(a16==6))))&&!(a7==1))&&(a20==1)))&&(a8==15))) [L334] a17 = 0 [L335] a16 = 4 [L336] return 21; [L591] RET, EXPR calculate_output(input) [L591] output = calculate_output(input) [L583] COND TRUE 1 [L586] int input; [L587] input = __VERIFIER_nondet_int() [L588] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L591] CALL, EXPR calculate_output(input) [L31] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L35] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L43] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L49] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L54] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L62] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L65] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L72] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L80] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L84] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L92] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L97] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L102] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L108] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L114] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L119] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L124] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L129] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L136] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L140] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L144] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L148] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L152] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L160] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L165] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L173] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L178] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L186] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L189] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L194] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L197] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L203] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L208] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L214] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L218] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L223] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L231] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L238] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L245] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L250] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L256] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L261] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L265] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L268] COND TRUE (((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4)) [L269] a20 = 0 [L270] a17 = 1 [L271] a16 = 6 [L272] return 21; [L591] RET, EXPR calculate_output(input) [L591] output = calculate_output(input) [L583] COND TRUE 1 [L586] int input; [L587] input = __VERIFIER_nondet_int() [L588] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L591] CALL, EXPR calculate_output(input) [L31] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L35] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L43] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L49] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L54] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L62] COND TRUE (((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6)) [L63] a17 = 0 [L64] return 26; [L591] RET, EXPR calculate_output(input) [L591] output = calculate_output(input) [L583] COND TRUE 1 [L586] int input; [L587] input = __VERIFIER_nondet_int() [L588] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L591] CALL, EXPR calculate_output(input) [L31] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L35] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L43] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L49] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L54] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L62] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L65] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L72] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L80] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L84] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L92] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L97] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L102] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L108] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L114] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L119] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L124] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L129] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L136] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L140] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L144] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L148] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L152] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L160] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L165] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L173] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L178] COND TRUE ((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8)) [L179] a17 = 0 [L180] a16 = 5 [L181] a21 = 1 [L182] a8 = 14 [L183] a7 = 1 [L184] a20 = 1 [L185] return -1; [L591] RET, EXPR calculate_output(input) [L591] output = calculate_output(input) [L583] COND TRUE 1 [L586] int input; [L587] input = __VERIFIER_nondet_int() [L588] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L591] CALL calculate_output(input) [L31] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L35] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L43] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L49] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L54] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L62] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L65] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L72] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L80] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L84] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L92] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L97] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L102] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L108] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L114] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L119] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L124] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L129] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L136] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L140] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L144] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L148] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L152] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L160] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L165] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L173] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L178] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L186] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L189] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L194] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L197] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L203] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L208] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L214] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L218] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L223] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L231] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L238] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L245] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L250] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L256] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L261] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L265] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L268] COND FALSE !((((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4))) [L273] COND FALSE !(((a7==1)&&((a8==13)&&((a12==8)&&(!(a21==1)&&((input==2)&&((((a20==1)&&!(a17==1))&&(a16==6))||(((a17==1)&&!(a20==1))&&(a16==4))))))))) [L278] COND FALSE !((((((((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15))&&(a16==6))&&(a21==1))||((((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))&&(a16==4))&&!(a21==1)))&&(input==6))&&(a12==8))) [L286] COND FALSE !(((!(a7==1)&&(!(a17==1)&&(((((input==3)&&(a21==1))&&(a16==4))&&(a8==15))&&(a12==8))))&&!(a20==1))) [L292] COND FALSE !((((((a12==8)&&(((((a17==1)&&!(a20==1))&&(a16==4))||((((a20==1)&&!(a17==1))&&(a16==5))||((!(a17==1)&&(a20==1))&&(a16==6))))&&(input==3)))&&(a8==15))&&(a21==1))&&!(a7==1))) [L299] COND FALSE !((((!(a7==1)&&(((input==5)&&((((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a12==8)))&&(a21==1))&&(a8==15))) [L306] COND FALSE !(((!(a7==1)&&(((a21==1)&&(((a17==1)&&((a12==8)&&(input==2)))&&!(a20==1)))&&(a16==6)))&&(a8==15))) [L312] COND FALSE !(((!(a17==1)&&((a21==1)&&((!(a20==1)&&((a12==8)&&((input==3)&&!(a7==1))))&&(a8==15))))&&(a16==5))) [L316] COND FALSE !((((a16==5)&&(!(a20==1)&&(((((input==6)&&(a21==1))&&(a17==1))&&!(a7==1))&&(a12==8))))&&(a8==15))) [L318] COND FALSE !((!(a7==1)&&((a17==1)&&(((a16==6)&&(!(a20==1)&&(((input==6)&&(a12==8))&&(a21==1))))&&(a8==15))))) [L324] COND FALSE !(((((a21==1)&&((a8==15)&&((a12==8)&&(!(a7==1)&&(!(a17==1)&&(input==2))))))&&(a16==4))&&(a20==1))) [L329] COND FALSE !(((a8==15)&&(((a16==4)&&((a12==8)&&((!(a20==1)&&(!(a7==1)&&(input==1)))&&!(a17==1))))&&(a21==1)))) [L333] COND FALSE !(((a21==1)&&(((a12==8)&&((((a17==1)&&((input==3)&&((a16==5)||(a16==6))))&&!(a7==1))&&(a20==1)))&&(a8==15)))) [L337] COND FALSE !((!(a21==1)&&((a20==1)&&(((a12==8)&&((a8==13)&&((((a16==5)&&!(a17==1))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==2))))&&(a7==1))))) [L345] COND FALSE !(((a7==1)&&((a12==8)&&((((a20==1)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||((a16==4)&&!(a17==1))))&&(input==4)))&&(a8==13))&&!(a21==1))))) [L353] COND FALSE !(((a21==1)&&((((!(a7==1)&&((a8==15)&&(!(a20==1)&&(input==4))))&&(a17==1))&&(a16==5))&&(a12==8)))) [L355] COND FALSE !((((!(a7==1)&&((!(a20==1)&&((a21==1)&&((input==3)&&(a17==1))))&&(a8==15)))&&(a12==8))&&(a16==5))) [L361] COND FALSE !(((((!(a17==1)&&(!(a20==1)&&((a8==15)&&((input==1)&&(a16==5)))))&&(a12==8))&&(a21==1))&&!(a7==1))) [L363] COND FALSE !(((((a21==1)&&((a8==15)&&(((a16==5)&&((a12==8)&&(input==1)))&&(a17==1))))&&!(a7==1))&&!(a20==1))) [L365] COND FALSE !(((!(a21==1)&&((a20==1)&&((((a8==13)&&((a7==1)&&(input==5)))&&(a17==1))&&(a12==8))))&&(a16==5))) [L372] COND FALSE !((((!(a7==1)&&((a21==1)&&((((input==6)&&(a20==1))&&(a8==15))&&!(a17==1))))&&(a12==8))&&(a16==4))) [L377] COND FALSE !(((((a20==1)&&(((!(a21==1)&&((a7==1)&&(input==1)))&&(a8==13))&&(a17==1)))&&(a12==8))&&(a16==5))) [L382] COND FALSE !(((a12==8)&&((input==5)&&((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==15))&&(a16==6))&&(a21==1))||(!(a21==1)&&((a16==4)&&(((a20==1)&&((a7==1)&&(a17==1)))&&(a8==13)))))))) [L391] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L394] COND FALSE !((((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L397] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==15))&&(a12==8))&&(a16==4))&&(a21==1))) [L400] COND FALSE !((((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==13))&&(a12==8))&&(a16==6))&&(a21==1))) [L403] COND FALSE !(((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L406] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==15))&&(a12==8))&&(a16==5))&&(a21==1))) [L409] COND FALSE !(((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==5))&&(a21==1))) [L412] COND FALSE !(((((((!(a17==1)&&!(a7==1))&&(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L415] COND FALSE !((((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==13))&&(a12==8))&&(a16==4))&&(a21==1))) [L418] COND TRUE ((((((!(a17==1)&&(a7==1))&&(a20==1))&&(a8==14))&&(a12==8))&&(a16==5))&&(a21==1)) [L419] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 111.7s, OverallIterations: 22, TraceHistogramMax: 6, AutomataDifference: 50.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 546 SDtfs, 9479 SDslu, 961 SDs, 0 SdLazy, 19485 SolverSat, 1638 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 21.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 530 GetRequests, 194 SyntacticMatches, 12 SemanticMatches, 324 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1104 ImplicationChecksByTransitivity, 33.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4484occurred in iteration=19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 21 MinimizatonAttempts, 730 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 57.5s InterpolantComputationTime, 3549 NumberOfCodeBlocks, 3549 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 3280 ConstructedInterpolants, 0 QuantifiedInterpolants, 5955913 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 1 PerfectInterpolantSequences, 2339/2508 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 incorrect! Received shutdown request...