/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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/recursive/Fibonacci04.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 02:00:07,849 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 02:00:07,853 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 02:00:07,892 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 02:00:07,893 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 02:00:07,900 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 02:00:07,901 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 02:00:07,904 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 02:00:07,907 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 02:00:07,909 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 02:00:07,910 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 02:00:07,911 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 02:00:07,911 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 02:00:07,913 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 02:00:07,916 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 02:00:07,917 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 02:00:07,919 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 02:00:07,920 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 02:00:07,921 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 02:00:07,930 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 02:00:07,932 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 02:00:07,933 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 02:00:07,934 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 02:00:07,935 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 02:00:07,946 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 02:00:07,946 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 02:00:07,946 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 02:00:07,950 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 02:00:07,951 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 02:00:07,952 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 02:00:07,952 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 02:00:07,956 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 02:00:07,956 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 02:00:07,957 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 02:00:07,958 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 02:00:07,958 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 02:00:07,961 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 02:00:07,962 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 02:00:07,962 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 02:00:07,963 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 02:00:07,966 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 02:00:07,966 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 [2020-10-15 02:00:08,004 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 02:00:08,004 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 02:00:08,005 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 02:00:08,006 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 02:00:08,006 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 02:00:08,007 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 02:00:08,007 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 02:00:08,007 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 02:00:08,007 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 02:00:08,007 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 02:00:08,008 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 02:00:08,009 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 02:00:08,009 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 02:00:08,009 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 02:00:08,010 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 02:00:08,011 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 02:00:08,011 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 02:00:08,011 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 02:00:08,011 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 02:00:08,011 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 02:00:08,012 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 02:00:08,012 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:00:08,012 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 02:00:08,013 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 02:00:08,013 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 02:00:08,013 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 02:00:08,013 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 02:00:08,013 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 02:00:08,013 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 02:00:08,014 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 02:00:08,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 02:00:08,312 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 02:00:08,315 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 02:00:08,316 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 02:00:08,317 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 02:00:08,317 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Fibonacci04.c [2020-10-15 02:00:08,375 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eaf81c455/f7a9942c3bd74235b0dd452bbf198c40/FLAG331218e2c [2020-10-15 02:00:08,784 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 02:00:08,785 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/Fibonacci04.c [2020-10-15 02:00:08,791 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eaf81c455/f7a9942c3bd74235b0dd452bbf198c40/FLAG331218e2c [2020-10-15 02:00:09,191 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eaf81c455/f7a9942c3bd74235b0dd452bbf198c40 [2020-10-15 02:00:09,199 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 02:00:09,201 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 02:00:09,202 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 02:00:09,202 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 02:00:09,206 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 02:00:09,207 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:00:09" (1/1) ... [2020-10-15 02:00:09,210 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11967da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:00:09, skipping insertion in model container [2020-10-15 02:00:09,210 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:00:09" (1/1) ... [2020-10-15 02:00:09,218 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 02:00:09,233 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 02:00:09,395 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:00:09,398 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 02:00:09,411 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:00:09,423 INFO L208 MainTranslator]: Completed translation [2020-10-15 02:00:09,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:00:09 WrapperNode [2020-10-15 02:00:09,424 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 02:00:09,424 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 02:00:09,425 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 02:00:09,425 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 02:00:09,434 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:00:09" (1/1) ... [2020-10-15 02:00:09,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:00:09" (1/1) ... [2020-10-15 02:00:09,520 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:00:09" (1/1) ... [2020-10-15 02:00:09,520 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:00:09" (1/1) ... [2020-10-15 02:00:09,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:00:09" (1/1) ... [2020-10-15 02:00:09,527 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:00:09" (1/1) ... [2020-10-15 02:00:09,528 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:00:09" (1/1) ... [2020-10-15 02:00:09,529 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 02:00:09,530 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 02:00:09,530 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 02:00:09,530 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 02:00:09,531 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:00:09" (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 [2020-10-15 02:00:09,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 02:00:09,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 02:00:09,597 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2020-10-15 02:00:09,597 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 02:00:09,598 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 02:00:09,598 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-15 02:00:09,598 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2020-10-15 02:00:09,598 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 02:00:09,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 02:00:09,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 02:00:09,762 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 02:00:09,762 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-15 02:00:09,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:00:09 BoogieIcfgContainer [2020-10-15 02:00:09,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 02:00:09,767 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 02:00:09,767 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 02:00:09,770 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 02:00:09,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:00:09" (1/3) ... [2020-10-15 02:00:09,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6888901 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:00:09, skipping insertion in model container [2020-10-15 02:00:09,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:00:09" (2/3) ... [2020-10-15 02:00:09,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6888901 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:00:09, skipping insertion in model container [2020-10-15 02:00:09,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:00:09" (3/3) ... [2020-10-15 02:00:09,774 INFO L109 eAbstractionObserver]: Analyzing ICFG Fibonacci04.c [2020-10-15 02:00:09,783 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 02:00:09,789 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 02:00:09,801 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 02:00:09,821 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 02:00:09,821 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 02:00:09,822 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 02:00:09,822 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 02:00:09,822 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 02:00:09,822 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 02:00:09,822 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 02:00:09,822 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 02:00:09,838 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-10-15 02:00:09,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 02:00:09,843 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:00:09,844 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:00:09,844 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:00:09,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:00:09,849 INFO L82 PathProgramCache]: Analyzing trace with hash -1356498376, now seen corresponding path program 1 times [2020-10-15 02:00:09,855 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:00:09,856 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1857064834] [2020-10-15 02:00:09,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:00:09,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:09,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:10,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:10,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-15 02:00:10,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:10,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-15 02:00:10,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:10,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:10,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:00:10,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-15 02:00:10,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:00:10,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 02:00:10,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:00:10,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:10,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:10,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:10,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:00:10,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:10,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:00:10,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:10,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:10,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:00:10,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:10,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:00:10,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:00:10,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:00:10,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:10,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:10,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:10,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:00:10,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:10,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 02:00:10,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:10,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:10,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:00:10,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:10,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:00:10,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:10,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:00:10,187 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1857064834] [2020-10-15 02:00:10,189 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:00:10,190 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 02:00:10,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96918342] [2020-10-15 02:00:10,196 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 02:00:10,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:00:10,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 02:00:10,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 02:00:10,215 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 5 states. [2020-10-15 02:00:10,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:00:10,340 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2020-10-15 02:00:10,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 02:00:10,342 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-15 02:00:10,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:00:10,353 INFO L225 Difference]: With dead ends: 35 [2020-10-15 02:00:10,353 INFO L226 Difference]: Without dead ends: 21 [2020-10-15 02:00:10,357 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 02:00:10,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-15 02:00:10,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-10-15 02:00:10,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-15 02:00:10,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2020-10-15 02:00:10,404 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 13 [2020-10-15 02:00:10,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:00:10,404 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2020-10-15 02:00:10,405 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 02:00:10,405 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2020-10-15 02:00:10,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 02:00:10,407 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:00:10,407 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:00:10,408 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 02:00:10,408 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:00:10,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:00:10,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1591396412, now seen corresponding path program 1 times [2020-10-15 02:00:10,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:00:10,409 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [144775116] [2020-10-15 02:00:10,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:00:10,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:10,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:10,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:10,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-15 02:00:10,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:10,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-15 02:00:10,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:10,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:10,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:00:10,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-15 02:00:10,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:00:10,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:10,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:00:10,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:10,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:10,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:10,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:00:10,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:10,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:00:10,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:10,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:10,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:00:10,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:10,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:00:10,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:10,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:00:10,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:10,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:10,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:10,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:00:10,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:10,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-15 02:00:10,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:10,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:10,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:00:10,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:10,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:00:10,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:10,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:00:10,605 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [144775116] [2020-10-15 02:00:10,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:00:10,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 02:00:10,605 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492744576] [2020-10-15 02:00:10,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 02:00:10,607 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:00:10,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 02:00:10,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 02:00:10,608 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand 5 states. [2020-10-15 02:00:10,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:00:10,677 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2020-10-15 02:00:10,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 02:00:10,678 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-15 02:00:10,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:00:10,679 INFO L225 Difference]: With dead ends: 27 [2020-10-15 02:00:10,680 INFO L226 Difference]: Without dead ends: 23 [2020-10-15 02:00:10,681 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 02:00:10,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-15 02:00:10,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2020-10-15 02:00:10,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-15 02:00:10,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2020-10-15 02:00:10,688 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 14 [2020-10-15 02:00:10,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:00:10,691 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2020-10-15 02:00:10,691 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 02:00:10,691 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2020-10-15 02:00:10,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-15 02:00:10,693 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:00:10,693 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:00:10,693 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 02:00:10,693 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:00:10,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:00:10,694 INFO L82 PathProgramCache]: Analyzing trace with hash -1761048597, now seen corresponding path program 1 times [2020-10-15 02:00:10,697 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:00:10,697 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2052707167] [2020-10-15 02:00:10,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:00:10,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:10,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:10,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:10,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:11,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:11,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-15 02:00:11,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:00:11,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 512 [2020-10-15 02:00:11,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:11,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:11,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:00:11,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-15 02:00:11,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-15 02:00:11,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:11,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:00:11,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:11,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:11,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:11,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:00:11,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:11,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:00:11,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:11,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:11,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:00:11,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:11,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:00:11,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:00:11,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:00:11,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:11,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:11,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:11,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:11,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:11,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-15 02:00:11,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:00:11,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-10-15 02:00:11,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:11,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:11,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:00:11,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:11,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-15 02:00:11,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:11,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:00:11,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:11,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:11,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:11,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:00:11,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:11,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:00:11,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:11,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:11,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:00:11,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:11,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:00:11,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:00:11,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 02:00:11,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:11,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:11,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:11,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:00:11,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:11,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:00:11,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:11,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:11,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:00:11,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:11,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:00:11,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:11,614 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-15 02:00:11,615 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2052707167] [2020-10-15 02:00:11,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:00:11,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-15 02:00:11,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183182638] [2020-10-15 02:00:11,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 02:00:11,618 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:00:11,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 02:00:11,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-15 02:00:11,625 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand 7 states. [2020-10-15 02:00:11,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:00:11,761 INFO L93 Difference]: Finished difference Result 47 states and 64 transitions. [2020-10-15 02:00:11,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 02:00:11,762 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2020-10-15 02:00:11,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:00:11,763 INFO L225 Difference]: With dead ends: 47 [2020-10-15 02:00:11,764 INFO L226 Difference]: Without dead ends: 30 [2020-10-15 02:00:11,765 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:00:11,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-15 02:00:11,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2020-10-15 02:00:11,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-15 02:00:11,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2020-10-15 02:00:11,778 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 26 [2020-10-15 02:00:11,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:00:11,779 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2020-10-15 02:00:11,779 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 02:00:11,779 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2020-10-15 02:00:11,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 02:00:11,781 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:00:11,781 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:00:11,781 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 02:00:11,781 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:00:11,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:00:11,782 INFO L82 PathProgramCache]: Analyzing trace with hash -624449707, now seen corresponding path program 1 times [2020-10-15 02:00:11,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:00:11,783 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1887269211] [2020-10-15 02:00:11,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:00:11,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:11,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:11,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:11,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:11,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-15 02:00:11,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:00:11,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-15 02:00:11,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:11,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:11,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:00:11,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-15 02:00:11,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:00:11,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:11,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:00:11,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:11,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:11,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:11,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:00:11,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:11,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:00:11,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:11,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:11,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:00:11,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:11,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:00:11,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:11,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:00:11,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:11,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:11,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:12,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:12,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-15 02:00:12,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:00:12,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-15 02:00:12,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:12,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:12,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:00:12,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:12,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-15 02:00:12,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:12,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:00:12,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:12,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:12,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:12,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:00:12,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:12,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:00:12,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:12,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:12,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:00:12,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:12,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:00:12,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:12,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-15 02:00:12,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:12,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:12,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:12,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:00:12,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:12,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:00:12,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:12,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:12,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:00:12,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:12,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:00:12,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:12,159 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-15 02:00:12,159 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1887269211] [2020-10-15 02:00:12,159 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:00:12,160 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-15 02:00:12,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375026721] [2020-10-15 02:00:12,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 02:00:12,161 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:00:12,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 02:00:12,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-15 02:00:12,162 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand 7 states. [2020-10-15 02:00:12,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:00:12,259 INFO L93 Difference]: Finished difference Result 35 states and 42 transitions. [2020-10-15 02:00:12,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 02:00:12,260 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-10-15 02:00:12,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:00:12,262 INFO L225 Difference]: With dead ends: 35 [2020-10-15 02:00:12,262 INFO L226 Difference]: Without dead ends: 31 [2020-10-15 02:00:12,263 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:00:12,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-15 02:00:12,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 28. [2020-10-15 02:00:12,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-15 02:00:12,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2020-10-15 02:00:12,271 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 27 [2020-10-15 02:00:12,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:00:12,272 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2020-10-15 02:00:12,272 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 02:00:12,272 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2020-10-15 02:00:12,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-15 02:00:12,274 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:00:12,274 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:00:12,274 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 02:00:12,274 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:00:12,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:00:12,275 INFO L82 PathProgramCache]: Analyzing trace with hash 1645568569, now seen corresponding path program 1 times [2020-10-15 02:00:12,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:00:12,275 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1015057471] [2020-10-15 02:00:12,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:00:12,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:12,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:12,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:12,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:12,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:12,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:12,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-15 02:00:12,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:00:12,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-10-15 02:00:12,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:12,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:12,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:00:12,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-15 02:00:12,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-15 02:00:12,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:12,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:00:12,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:12,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:12,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:12,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:00:12,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:12,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:00:12,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:12,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:12,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:00:12,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:12,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:00:12,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:12,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:00:12,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:12,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:12,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:12,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:12,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:12,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:12,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:00:12,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:00:12,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-10-15 02:00:12,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:12,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:12,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:00:12,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:12,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:00:12,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:12,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:00:12,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:12,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:12,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:12,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:00:12,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:12,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:00:12,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:12,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:12,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:00:12,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:12,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:00:12,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:00:12,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-15 02:00:12,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:12,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:12,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:12,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:00:12,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:12,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:00:12,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:12,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:12,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:00:12,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:12,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:00:12,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:12,829 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-15 02:00:12,829 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1015057471] [2020-10-15 02:00:12,830 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:00:12,830 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-15 02:00:12,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303281448] [2020-10-15 02:00:12,831 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 02:00:12,831 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:00:12,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 02:00:12,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-15 02:00:12,832 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand 7 states. [2020-10-15 02:00:12,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:00:12,971 INFO L93 Difference]: Finished difference Result 51 states and 70 transitions. [2020-10-15 02:00:12,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 02:00:12,972 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2020-10-15 02:00:12,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:00:12,974 INFO L225 Difference]: With dead ends: 51 [2020-10-15 02:00:12,974 INFO L226 Difference]: Without dead ends: 47 [2020-10-15 02:00:12,975 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:00:12,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-15 02:00:12,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 44. [2020-10-15 02:00:12,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-10-15 02:00:12,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 62 transitions. [2020-10-15 02:00:12,987 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 62 transitions. Word has length 28 [2020-10-15 02:00:12,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:00:12,988 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 62 transitions. [2020-10-15 02:00:12,988 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 02:00:12,988 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 62 transitions. [2020-10-15 02:00:12,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-15 02:00:12,991 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:00:12,991 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:00:12,992 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 02:00:12,992 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:00:12,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:00:12,992 INFO L82 PathProgramCache]: Analyzing trace with hash -339780296, now seen corresponding path program 2 times [2020-10-15 02:00:12,992 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:00:12,993 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [193424828] [2020-10-15 02:00:12,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:00:13,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:13,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:13,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:13,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:13,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:13,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:13,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:13,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:13,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:14,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:14,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:18,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:18,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-15 02:00:18,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-15 02:00:18,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-15 02:00:18,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:18,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:18,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:00:18,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:00:18,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:00:18,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:18,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:00:18,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:18,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:18,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:18,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:00:18,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:18,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:00:18,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:18,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:18,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:00:18,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:18,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:00:18,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:18,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:00:18,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:18,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:18,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:18,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:18,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:18,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:18,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:18,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:18,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:19,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:20,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:20,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:20,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:20,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:21,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:21,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:21,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:23,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:23,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-15 02:00:23,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-15 02:00:23,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-15 02:00:23,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:23,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:23,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:00:23,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-15 02:00:23,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-15 02:00:23,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:23,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:00:23,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:23,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:23,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:23,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:23,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-15 02:00:23,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:00:23,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-15 02:00:23,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:23,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:23,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:00:23,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:23,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-15 02:00:23,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:00:23,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:00:23,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:23,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:23,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:23,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:00:23,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:23,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:00:23,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:23,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:23,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:00:23,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:23,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:00:23,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:23,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 02:00:23,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:23,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:23,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:23,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:00:23,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:23,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:00:23,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:23,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:23,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:00:23,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:23,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:00:23,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:00:23,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-15 02:00:23,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:23,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:23,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:23,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:23,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:23,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:23,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:23,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:23,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-15 02:00:23,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:00:23,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 352 [2020-10-15 02:00:23,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:23,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:23,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 02:00:23,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:00:23,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-15 02:00:23,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:23,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:00:23,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:23,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:23,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:23,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:23,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:23,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:23,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-15 02:00:23,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:00:23,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-15 02:00:23,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:23,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:23,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:00:23,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:23,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-15 02:00:23,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:23,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:00:23,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:23,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:23,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:23,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:00:23,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:23,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:00:23,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:23,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:23,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:00:23,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:23,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:00:23,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:00:23,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-15 02:00:23,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:23,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:23,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:23,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:00:23,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:23,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:00:23,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:23,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:23,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:00:23,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:23,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:00:23,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:00:23,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-15 02:00:23,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:23,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:23,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:23,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:00:23,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:23,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:00:23,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:23,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:23,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:00:23,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:00:23,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:00:23,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:23,751 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 71 proven. 28 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-10-15 02:00:23,752 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [193424828] [2020-10-15 02:00:23,753 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:00:23,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-15 02:00:23,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126007409] [2020-10-15 02:00:23,755 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:00:23,755 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:00:23,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:00:23,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:00:23,756 INFO L87 Difference]: Start difference. First operand 44 states and 62 transitions. Second operand 11 states. [2020-10-15 02:00:23,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:00:23,929 INFO L93 Difference]: Finished difference Result 83 states and 136 transitions. [2020-10-15 02:00:23,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 02:00:23,930 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 65 [2020-10-15 02:00:23,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:00:23,933 INFO L225 Difference]: With dead ends: 83 [2020-10-15 02:00:23,933 INFO L226 Difference]: Without dead ends: 45 [2020-10-15 02:00:23,936 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-15 02:00:23,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-15 02:00:23,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 39. [2020-10-15 02:00:23,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-15 02:00:23,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2020-10-15 02:00:23,954 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 65 [2020-10-15 02:00:23,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:00:23,955 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2020-10-15 02:00:23,955 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 02:00:23,955 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2020-10-15 02:00:23,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-15 02:00:23,957 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:00:23,957 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:00:23,957 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 02:00:23,957 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:00:23,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:00:23,958 INFO L82 PathProgramCache]: Analyzing trace with hash 1222413926, now seen corresponding path program 2 times [2020-10-15 02:00:23,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:00:23,958 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2064780558] [2020-10-15 02:00:23,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:00:23,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:23,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:23,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:23,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:24,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:24,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:24,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:24,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:24,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:27,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:27,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:28,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:28,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-15 02:00:28,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-15 02:00:28,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-15 02:00:28,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:28,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:28,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:00:28,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-15 02:00:28,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:00:28,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:28,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:00:28,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:28,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:28,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:28,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:00:28,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:28,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:00:28,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:28,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:28,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:00:28,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:28,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:00:28,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:28,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:00:29,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:29,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:29,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:29,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:29,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:29,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:29,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:29,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:29,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:29,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:29,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:29,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:29,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:29,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:29,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:30,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:34,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:34,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-15 02:00:34,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-15 02:00:34,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-15 02:00:34,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:34,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:34,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:00:34,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-15 02:00:34,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-15 02:00:34,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:34,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:00:34,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:34,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:34,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:34,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:34,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-15 02:00:34,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:00:34,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-15 02:00:34,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:34,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:34,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:00:34,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:34,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-15 02:00:34,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:34,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:00:34,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:34,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:34,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:34,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:00:34,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:34,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:00:34,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:34,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:34,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:00:34,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:34,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:00:34,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:34,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-15 02:00:34,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:34,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:34,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:34,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:00:34,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:34,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:00:34,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:34,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:34,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:00:34,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:34,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:00:34,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:34,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-15 02:00:34,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:34,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:34,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:34,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:34,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:34,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:34,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:34,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:34,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-15 02:00:34,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:00:34,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 573 [2020-10-15 02:00:34,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:34,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:34,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:00:34,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:00:34,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-15 02:00:34,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:34,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:00:34,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:34,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:34,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:34,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-15 02:00:34,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:34,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:00:34,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:34,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:34,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:00:34,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:34,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-15 02:00:34,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:34,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:00:34,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:34,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:34,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:34,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:00:34,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:34,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:00:34,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:34,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:34,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:00:34,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:34,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:00:34,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:34,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-15 02:00:34,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:34,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:34,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:34,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:00:34,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:34,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:00:34,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:34,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:34,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:00:34,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:34,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:00:34,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:34,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-15 02:00:34,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:34,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:34,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:34,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:00:34,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:34,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:00:34,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:34,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:34,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:00:34,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:34,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:00:34,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:34,823 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 43 proven. 66 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-10-15 02:00:34,823 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2064780558] [2020-10-15 02:00:34,824 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:00:34,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-15 02:00:34,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858040996] [2020-10-15 02:00:34,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:00:34,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:00:34,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:00:34,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:00:34,827 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand 9 states. [2020-10-15 02:00:35,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:00:35,086 INFO L93 Difference]: Finished difference Result 72 states and 106 transitions. [2020-10-15 02:00:35,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 02:00:35,089 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 68 [2020-10-15 02:00:35,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:00:35,090 INFO L225 Difference]: With dead ends: 72 [2020-10-15 02:00:35,090 INFO L226 Difference]: Without dead ends: 39 [2020-10-15 02:00:35,091 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2020-10-15 02:00:35,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-15 02:00:35,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2020-10-15 02:00:35,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-15 02:00:35,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 45 transitions. [2020-10-15 02:00:35,104 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 45 transitions. Word has length 68 [2020-10-15 02:00:35,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:00:35,104 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 45 transitions. [2020-10-15 02:00:35,104 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:00:35,105 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 45 transitions. [2020-10-15 02:00:35,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-15 02:00:35,109 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:00:35,109 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:00:35,109 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 02:00:35,110 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:00:35,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:00:35,110 INFO L82 PathProgramCache]: Analyzing trace with hash -383842586, now seen corresponding path program 3 times [2020-10-15 02:00:35,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:00:35,111 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2129434808] [2020-10-15 02:00:35,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:00:35,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:35,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:35,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:35,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:35,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:35,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:40,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:40,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-15 02:00:40,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:00:40,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 02:00:40,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:40,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:40,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 02:00:40,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-15 02:00:40,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-15 02:00:40,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:40,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:00:40,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:40,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:40,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:40,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:00:40,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:40,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:00:40,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:40,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:40,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:00:40,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:40,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:00:40,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:40,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:00:40,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:40,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:40,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:40,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:40,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:40,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:45,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:45,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-15 02:00:45,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:00:45,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-15 02:00:45,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:45,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:45,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 02:00:45,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:45,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-15 02:00:45,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:45,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:00:45,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:45,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:45,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:45,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:45,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:45,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-15 02:00:45,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:00:45,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 543 [2020-10-15 02:00:45,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:45,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:45,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:00:45,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:45,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-15 02:00:45,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:45,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:00:45,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:45,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:45,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:45,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-15 02:00:45,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:45,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:00:45,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:45,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:45,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:00:45,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:45,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-15 02:00:45,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:45,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:00:45,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:45,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:45,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:45,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:00:45,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:45,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:00:45,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:45,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:45,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:00:45,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:45,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:00:45,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:45,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-15 02:00:45,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:45,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:45,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:45,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:00:45,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:45,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:00:45,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:45,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:45,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:00:45,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:45,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:00:45,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:45,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-15 02:00:45,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:45,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:45,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:45,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:00:45,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:45,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:00:45,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:45,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:45,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:00:45,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:45,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:00:45,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:45,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-15 02:00:45,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:45,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:45,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:45,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-15 02:00:45,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:45,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:00:45,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:45,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:45,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:00:45,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:45,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-15 02:00:45,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:45,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:00:45,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:45,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:45,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:45,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:00:45,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:45,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:00:45,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:45,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:45,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:00:45,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:45,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:00:45,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:45,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-15 02:00:45,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:45,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:45,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:45,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:00:45,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:45,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:00:45,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:45,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:45,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:00:45,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:45,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:00:45,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:45,862 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 40 proven. 58 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2020-10-15 02:00:45,863 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2129434808] [2020-10-15 02:00:45,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:00:45,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-15 02:00:45,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73095367] [2020-10-15 02:00:45,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:00:45,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:00:45,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:00:45,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:00:45,866 INFO L87 Difference]: Start difference. First operand 36 states and 45 transitions. Second operand 9 states. [2020-10-15 02:00:45,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:00:45,999 INFO L93 Difference]: Finished difference Result 48 states and 64 transitions. [2020-10-15 02:00:45,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-15 02:00:45,999 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 68 [2020-10-15 02:00:46,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:00:46,001 INFO L225 Difference]: With dead ends: 48 [2020-10-15 02:00:46,002 INFO L226 Difference]: Without dead ends: 44 [2020-10-15 02:00:46,002 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-10-15 02:00:46,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-10-15 02:00:46,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 41. [2020-10-15 02:00:46,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-15 02:00:46,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 56 transitions. [2020-10-15 02:00:46,014 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 56 transitions. Word has length 68 [2020-10-15 02:00:46,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:00:46,015 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 56 transitions. [2020-10-15 02:00:46,015 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:00:46,015 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 56 transitions. [2020-10-15 02:00:46,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-15 02:00:46,019 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:00:46,020 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 14, 8, 8, 8, 8, 8, 8, 8, 6, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:00:46,020 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 02:00:46,020 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:00:46,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:00:46,020 INFO L82 PathProgramCache]: Analyzing trace with hash -1737041458, now seen corresponding path program 4 times [2020-10-15 02:00:46,021 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:00:46,021 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [335970921] [2020-10-15 02:00:46,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:00:46,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:46,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:46,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:46,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:46,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:46,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:46,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:47,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:47,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:47,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:47,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:47,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:47,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:48,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:48,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:48,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:48,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:48,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:48,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:48,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:48,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:48,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:50,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:50,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:50,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:50,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:51,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:51,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-15 02:00:51,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 25 [2020-10-15 02:00:51,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-15 02:00:51,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:51,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:51,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:00:51,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-15 02:00:51,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-15 02:00:51,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:51,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:00:51,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:51,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:51,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:51,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:00:51,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:00:51,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:00:51,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:51,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:51,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:00:51,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:00:51,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:00:51,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:00:51,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:00:51,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:51,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:51,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:51,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:51,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:51,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:51,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:51,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:51,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:52,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:52,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:52,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:52,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:53,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:53,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:53,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:56,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:00:56,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-15 02:00:56,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-15 02:00:56,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-15 02:00:56,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:00:56,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:00:56,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:00:56,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-15 02:00:56,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-15 02:00:56,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:00:56,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:00:56,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:00:56,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:56,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:56,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:56,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:56,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:56,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:56,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:56,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:56,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:56,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:56,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:56,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:56,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:56,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:56,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:00:56,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:01,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:01,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-15 02:01:01,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-10-15 02:01:01,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-15 02:01:01,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:01,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:01,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:01:01,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-15 02:01:01,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 02:01:01,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:01,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:01,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:01,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:01,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:01,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:01,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:01,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:01,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:02,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:02,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-15 02:01:02,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:01:02,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1035 [2020-10-15 02:01:02,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:02,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:02,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:01:02,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:02,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-15 02:01:02,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:02,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:02,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:02,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:02,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:02,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-15 02:01:02,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:02,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:01:02,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:02,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:02,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:01:02,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:02,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-15 02:01:02,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:02,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:02,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:02,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:02,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:02,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:02,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:02,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:01:02,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:02,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:02,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:01:02,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:02,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:01:02,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:02,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-15 02:01:02,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:02,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:02,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:02,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:01:02,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:02,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:01:02,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:02,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:02,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:01:02,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:02,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:01:02,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:02,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-15 02:01:02,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:02,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:02,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:02,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:02,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:02,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:01:02,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:02,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:02,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:01:02,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:02,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:01:02,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:02,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-15 02:01:02,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:02,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:02,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:02,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:02,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:02,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:02,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:02,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-15 02:01:02,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:01:02,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 497 [2020-10-15 02:01:02,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:02,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:02,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:01:02,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:01:02,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-15 02:01:02,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:02,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:02,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:02,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:02,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:02,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-15 02:01:02,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:02,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:01:02,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:02,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:02,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:01:02,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:02,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-15 02:01:02,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:02,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:02,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:02,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:02,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:02,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:02,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:02,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:01:02,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:02,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:02,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:01:02,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:02,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:01:02,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:02,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-15 02:01:02,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:02,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:02,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:02,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:01:02,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:02,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:01:02,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:02,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:02,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:01:02,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:02,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:01:02,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:02,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-15 02:01:02,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:02,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:02,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:02,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:02,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:02,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:01:02,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:01:02,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:02,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:02,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:01:02,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:02,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:01:02,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:02,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-15 02:01:02,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:02,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:02,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:02,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:03,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:03,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-15 02:01:03,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:01:03,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 363 [2020-10-15 02:01:03,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:03,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:03,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:01:03,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:01:03,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-15 02:01:03,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:03,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:03,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:03,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:03,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:03,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-15 02:01:03,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:03,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:01:03,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:03,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:03,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:01:03,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:03,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-15 02:01:03,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:03,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:03,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:03,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:03,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:03,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:03,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:03,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:01:03,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:03,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:03,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:01:03,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:03,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:01:03,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:03,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-15 02:01:03,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:03,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:03,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:03,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:01:03,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:03,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:01:03,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:03,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:03,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:01:03,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:03,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:01:03,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:03,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-15 02:01:03,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:03,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:03,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:03,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:03,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:03,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:01:03,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:03,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:03,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:01:03,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:03,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:01:03,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:03,386 INFO L134 CoverageAnalysis]: Checked inductivity of 747 backedges. 236 proven. 192 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2020-10-15 02:01:03,386 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [335970921] [2020-10-15 02:01:03,386 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:01:03,387 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-15 02:01:03,387 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517206573] [2020-10-15 02:01:03,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 02:01:03,388 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:01:03,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 02:01:03,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-10-15 02:01:03,388 INFO L87 Difference]: Start difference. First operand 41 states and 56 transitions. Second operand 13 states. [2020-10-15 02:01:03,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:01:03,775 INFO L93 Difference]: Finished difference Result 110 states and 189 transitions. [2020-10-15 02:01:03,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-15 02:01:03,776 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 123 [2020-10-15 02:01:03,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:01:03,779 INFO L225 Difference]: With dead ends: 110 [2020-10-15 02:01:03,779 INFO L226 Difference]: Without dead ends: 64 [2020-10-15 02:01:03,781 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:01:03,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-10-15 02:01:03,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 61. [2020-10-15 02:01:03,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-10-15 02:01:03,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 84 transitions. [2020-10-15 02:01:03,791 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 84 transitions. Word has length 123 [2020-10-15 02:01:03,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:01:03,792 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 84 transitions. [2020-10-15 02:01:03,792 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 02:01:03,792 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 84 transitions. [2020-10-15 02:01:03,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-15 02:01:03,793 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:01:03,794 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 11, 6, 6, 6, 6, 6, 6, 6, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:01:03,794 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 02:01:03,794 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:01:03,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:01:03,794 INFO L82 PathProgramCache]: Analyzing trace with hash 620086278, now seen corresponding path program 5 times [2020-10-15 02:01:03,795 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:01:03,795 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [701199853] [2020-10-15 02:01:03,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:01:03,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:03,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:03,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:03,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:03,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:03,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:04,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:04,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:04,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:04,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:08,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:08,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-15 02:01:08,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-15 02:01:08,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 02:01:08,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:08,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:08,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:01:08,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-15 02:01:08,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-15 02:01:08,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:08,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:01:08,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:08,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:08,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:08,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:01:08,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:08,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:01:08,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:08,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:08,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:01:08,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:08,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:01:08,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:08,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:01:08,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:08,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:08,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:08,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:08,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:08,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:08,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:08,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:09,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:09,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:09,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:13,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:13,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-15 02:01:13,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-15 02:01:13,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 02:01:13,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:13,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:13,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:01:13,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-15 02:01:13,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-15 02:01:13,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:13,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:13,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:13,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:13,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:13,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:13,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:13,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:14,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:14,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:14,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:18,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:18,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-15 02:01:18,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-15 02:01:18,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-15 02:01:18,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:18,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:18,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:01:18,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:18,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-15 02:01:18,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:18,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:18,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:18,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:18,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:18,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-15 02:01:18,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:18,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:01:18,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:18,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:18,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:01:18,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:18,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-15 02:01:18,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:18,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:18,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:18,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:18,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:18,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-15 02:01:18,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:18,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:01:18,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:18,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:18,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:01:18,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:18,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:01:18,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:18,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:18,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:18,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:18,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:18,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:18,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:18,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:01:18,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:18,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:18,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:01:18,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:18,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:01:18,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:18,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-15 02:01:18,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:18,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:18,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:18,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:01:18,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:18,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:01:18,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:18,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:18,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:01:18,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:18,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:01:18,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:18,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-15 02:01:18,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:18,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:18,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:18,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:18,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:18,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:01:18,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:18,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:18,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:01:18,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:18,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:01:18,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:18,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-15 02:01:18,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:18,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:18,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:18,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:18,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:18,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-15 02:01:18,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:01:18,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-15 02:01:18,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:18,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:18,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:01:18,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:18,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-15 02:01:18,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:18,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:18,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:18,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:18,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:18,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:18,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:18,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:01:18,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:18,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:18,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:01:18,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:18,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:01:18,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:18,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-15 02:01:18,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:18,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:18,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:18,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:01:18,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:18,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:01:18,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:18,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:18,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:01:18,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:18,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:01:18,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:18,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-15 02:01:19,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:19,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:19,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:19,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:19,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:19,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-15 02:01:19,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:01:19,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-15 02:01:19,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:19,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:19,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:01:19,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-15 02:01:19,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-15 02:01:19,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:01:19,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-15 02:01:19,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:19,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:19,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:19,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:19,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:19,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:01:19,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:19,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:19,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:01:19,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:19,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:01:19,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:19,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-15 02:01:19,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:01:19,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:01:19,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:01:19,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:01:19,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:01:19,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:01:19,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:01:19,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:01:19,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:01:19,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:01:19,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:01:19,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:01:19,152 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 173 proven. 55 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2020-10-15 02:01:19,153 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [701199853] [2020-10-15 02:01:19,153 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:01:19,153 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-15 02:01:19,153 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311656551] [2020-10-15 02:01:19,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:01:19,154 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:01:19,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:01:19,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:01:19,155 INFO L87 Difference]: Start difference. First operand 61 states and 84 transitions. Second operand 10 states. [2020-10-15 02:01:19,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:01:19,322 INFO L93 Difference]: Finished difference Result 116 states and 179 transitions. [2020-10-15 02:01:19,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 02:01:19,323 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 96 [2020-10-15 02:01:19,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:01:19,324 INFO L225 Difference]: With dead ends: 116 [2020-10-15 02:01:19,325 INFO L226 Difference]: Without dead ends: 60 [2020-10-15 02:01:19,326 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2020-10-15 02:01:19,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-15 02:01:19,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-10-15 02:01:19,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-15 02:01:19,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 81 transitions. [2020-10-15 02:01:19,334 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 81 transitions. Word has length 96 [2020-10-15 02:01:19,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:01:19,335 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 81 transitions. [2020-10-15 02:01:19,335 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:01:19,335 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 81 transitions. [2020-10-15 02:01:19,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-15 02:01:19,336 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:01:19,337 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 12, 7, 7, 7, 7, 7, 7, 7, 5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:01:19,337 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 02:01:19,337 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:01:19,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:01:19,337 INFO L82 PathProgramCache]: Analyzing trace with hash 580129251, now seen corresponding path program 6 times [2020-10-15 02:01:19,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:01:19,338 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [833331679] [2020-10-15 02:01:19,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:01:19,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 02:01:19,351 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-15 02:01:19,351 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 02:01:19,356 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 02:01:19,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 02:01:19 BoogieIcfgContainer [2020-10-15 02:01:19,379 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 02:01:19,382 INFO L168 Benchmark]: Toolchain (without parser) took 70179.76 ms. Allocated memory was 146.8 MB in the beginning and 824.7 MB in the end (delta: 677.9 MB). Free memory was 101.9 MB in the beginning and 724.0 MB in the end (delta: -622.1 MB). Peak memory consumption was 55.8 MB. Max. memory is 7.1 GB. [2020-10-15 02:01:19,382 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 146.8 MB. Free memory was 120.1 MB in the beginning and 119.7 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-10-15 02:01:19,383 INFO L168 Benchmark]: CACSL2BoogieTranslator took 222.11 ms. Allocated memory is still 146.8 MB. Free memory was 101.5 MB in the beginning and 91.7 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-10-15 02:01:19,384 INFO L168 Benchmark]: Boogie Preprocessor took 104.90 ms. Allocated memory was 146.8 MB in the beginning and 202.9 MB in the end (delta: 56.1 MB). Free memory was 91.7 MB in the beginning and 181.6 MB in the end (delta: -89.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-10-15 02:01:19,385 INFO L168 Benchmark]: RCFGBuilder took 236.20 ms. Allocated memory is still 202.9 MB. Free memory was 181.6 MB in the beginning and 169.6 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. [2020-10-15 02:01:19,385 INFO L168 Benchmark]: TraceAbstraction took 69611.98 ms. Allocated memory was 202.9 MB in the beginning and 824.7 MB in the end (delta: 621.8 MB). Free memory was 169.6 MB in the beginning and 724.0 MB in the end (delta: -554.3 MB). Peak memory consumption was 67.5 MB. Max. memory is 7.1 GB. [2020-10-15 02:01:19,389 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 146.8 MB. Free memory was 120.1 MB in the beginning and 119.7 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 222.11 ms. Allocated memory is still 146.8 MB. Free memory was 101.5 MB in the beginning and 91.7 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 104.90 ms. Allocated memory was 146.8 MB in the beginning and 202.9 MB in the end (delta: 56.1 MB). Free memory was 91.7 MB in the beginning and 181.6 MB in the end (delta: -89.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 236.20 ms. Allocated memory is still 202.9 MB. Free memory was 181.6 MB in the beginning and 169.6 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 69611.98 ms. Allocated memory was 202.9 MB in the beginning and 824.7 MB in the end (delta: 621.8 MB). Free memory was 169.6 MB in the beginning and 724.0 MB in the end (delta: -554.3 MB). Peak memory consumption was 67.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 33]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L28] int x = __VERIFIER_nondet_int(); [L29] CALL, EXPR fibonacci(x) [L17] COND FALSE !(n < 1) [L19] COND FALSE !(n == 1) [L22] CALL, EXPR fibonacci(n-1) [L17] COND FALSE !(n < 1) [L19] COND FALSE !(n == 1) [L22] CALL, EXPR fibonacci(n-1) [L17] COND FALSE !(n < 1) [L19] COND FALSE !(n == 1) [L22] CALL, EXPR fibonacci(n-1) [L17] COND FALSE !(n < 1) [L19] COND FALSE !(n == 1) [L22] CALL, EXPR fibonacci(n-1) [L17] COND FALSE !(n < 1) [L19] COND TRUE n == 1 [L20] return 1; [L22] RET, EXPR fibonacci(n-1) [L22] CALL, EXPR fibonacci(n-2) [L17] COND TRUE n < 1 [L18] return 0; [L22] RET, EXPR fibonacci(n-2) [L22] return fibonacci(n-1) + fibonacci(n-2); [L22] RET, EXPR fibonacci(n-1) [L22] CALL, EXPR fibonacci(n-2) [L17] COND FALSE !(n < 1) [L19] COND TRUE n == 1 [L20] return 1; [L22] RET, EXPR fibonacci(n-2) [L22] return fibonacci(n-1) + fibonacci(n-2); [L22] RET, EXPR fibonacci(n-1) [L22] CALL, EXPR fibonacci(n-2) [L17] COND FALSE !(n < 1) [L19] COND FALSE !(n == 1) [L22] CALL, EXPR fibonacci(n-1) [L17] COND FALSE !(n < 1) [L19] COND TRUE n == 1 [L20] return 1; [L22] RET, EXPR fibonacci(n-1) [L22] CALL, EXPR fibonacci(n-2) [L17] COND TRUE n < 1 [L18] return 0; [L22] RET, EXPR fibonacci(n-2) [L22] return fibonacci(n-1) + fibonacci(n-2); [L22] RET, EXPR fibonacci(n-2) [L22] return fibonacci(n-1) + fibonacci(n-2); [L22] RET, EXPR fibonacci(n-1) [L22] CALL, EXPR fibonacci(n-2) [L17] COND FALSE !(n < 1) [L19] COND FALSE !(n == 1) [L22] CALL, EXPR fibonacci(n-1) [L17] COND FALSE !(n < 1) [L19] COND FALSE !(n == 1) [L22] CALL, EXPR fibonacci(n-1) [L17] COND FALSE !(n < 1) [L19] COND TRUE n == 1 [L20] return 1; [L22] RET, EXPR fibonacci(n-1) [L22] CALL, EXPR fibonacci(n-2) [L17] COND TRUE n < 1 [L18] return 0; [L22] RET, EXPR fibonacci(n-2) [L22] return fibonacci(n-1) + fibonacci(n-2); [L22] RET, EXPR fibonacci(n-1) [L22] CALL, EXPR fibonacci(n-2) [L17] COND FALSE !(n < 1) [L19] COND TRUE n == 1 [L20] return 1; [L22] RET, EXPR fibonacci(n-2) [L22] return fibonacci(n-1) + fibonacci(n-2); [L22] RET, EXPR fibonacci(n-2) [L22] return fibonacci(n-1) + fibonacci(n-2); [L29] RET, EXPR fibonacci(x) [L29] int result = fibonacci(x); [L30] COND FALSE !(x != 5 || result == 3) [L33] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 69.5s, OverallIterations: 11, TraceHistogramMax: 17, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 181 SDtfs, 293 SDslu, 506 SDs, 0 SdLazy, 734 SolverSat, 266 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 271 GetRequests, 168 SyntacticMatches, 2 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 25 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 67.2s InterpolantComputationTime, 637 NumberOfCodeBlocks, 637 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 518 ConstructedInterpolants, 0 QuantifiedInterpolants, 88922 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 2 PerfectInterpolantSequences, 1350/1766 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...